The document discusses ASME B30.5, the safety standard for mobile and locomotive cranes. It provides definitions for key terms, the scope of equipment covered, and requirements for load ratings, construction, and characteristics. The standard requires load rating charts showing the full range of rated capacities based on factors like boom length, outrigger position, and radius. The charts must be clearly displayed and include warnings or limitations. Requirements are provided for load ratings determined by stability or structural competence, and diagrams must be supplied by the manufacturer.
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B30 5 ASME-MOBILE AND LOCOMOTIVE CRANES
1. ASME B30.5
MOBILE AND LOCOMOTIVE CRANESSafety standard for cableways, cranes, derricks, hoists, hooks, jacks and slings
2. ASME B30.5
INTRODUCTION
One purpose of Standard is to serve as guide to governmental authorities and to manufactures, purchasers and
users of the equipment.
The Standard has been divided into separate volumes:
B30. 1 Jacks
B30.2 Overhead and Gantry Cranes (Top Running Bridge, Single or Multiple Girder, Top Running Trolley Hoist)
B30.3 Construction Tower Cranes
B30.4 Portal, Tower, and Pedestal Cranes
B30.5 Mobile and Locomotive Cranes
B30.6 Demcks
B30.7 Base Mounted Drum Hoists
B30.8 Floating Cranes and Floating Demcks
B30.9 Slings
B30.10 Hooks
B30.11 Monorails and Underhung Cranes
B30.12 Handling Loads Suspended From Rotorcraft
B30.13 StorageRetrieval (S/R) Machines and Associated Equipment
B30.14 Side Boom Tractors
B30.15 Mobile Hydraulic Cranes Note: B30.15- I973 has been withdrawn. The revision of B30.15 is included in the latest edition of B30.5.
B30.16 Overhead Hoists (Underhung)
B30.17 Overhead and Gantry Cranes (Top Running Bridge, Single Girder, Underhung Hoist)
B30.18 Stacker Cranes (Top or Under Running Bridge, Multiple Girder With Top or Under Running Trolley Hoist)
B30.19 Cableways
B30.20 Below-the-Hook Lifting Devices
B30.21 Manually Lever Operated Hoists
B30.22 Articulating Boom Cranes
B30.23 Personnel Lifting Systems
B30.24 Container Cranes'
B30.25 Scrap and Material Handlers
B30.26 Rigging Hardware
B30.27 Material Placement Systems
B30.28 Balance-Lifting Units
3. ASME B30.5
INTRODUCTION
SCOPE
This Standards applies to the construction, installation, operation, inspection, and maintenace of jacks;
poweroperated cranes, monorails and crane runways; power operated and manually operated derricks and
hoist, lifing devices, hooks and sling and cableways.
NOT APPLY:
- Track and automotive jacks
- Railway or automobile wrecking cranes
- Shipboard : cranes, cargo-handling equipment
- Well-drilling derricks
- Skip hoists
- Mine hoists
- Truck body hoists
- Car or barge pullers
- Conveyors
- Excavating equipment
- Or equipment coming within the scope of the following committes: A10/ A17/A90/A92/A120/B20/B56/B77
PURPOSE
Minimize injury to workers, provide the protection of life, limb and property by prescribing safety requirements..
Provide direction to owners, employers, supervisors and other concerned with or reponsible for its application
Guide governments and other regulatory bodies in the development, promulgation and enforcement of
appropriate safety directives
Safety standard for cableways, cranes, derricks, hoists, hooks, jacks and slings
4. ASME B30.5
INTRODUCTION
INTERPRETATIONS
The request for interpretation should be clear and unambiguous. Format:
Subject- paragraph number/s and concise description
Editions-of the pertinent volume
Questions-as a request for an interpretation of a specific requirements
NEW AND EXISTING INSTALLATIONS
Effective date- 1 years after its date of issuance
New installations- Construction, installation, inspection, testing , maintenance, and operation of equipment
manufactures and facilities constructed after the effective date of this volume shall conform with the mandatory
requirements of this volume.
Existing Installation: inspection, testing , maintenance and operation of equipment manufactured and facilities
constructed prior to the effective date of this volume
When an item is being modified-requirement be reviewed relative to the current volume
MANDATORY AND ADVISORY RULES
Mandatory rules= use of the word SHALL
Advisory rules= SHOULD, recommendation to be considered
METRIC CONVERSIONS
The values stated in U.S. Customary units are to be regarded as the standard. And SI
5. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
SCOPE
B30.5 applies to crawler cranes, locomotive cranes, wheel-mounted cranes, and any variations thereof which
retain the same fundamental characteristics. Crane powered by internal combustion engines or electric motors.
Machines when used as lifting cranes.
EXCLUDE
Side boom tractors
Crane designed for rail way
Automobile wreck clearance
Digger derricks
Cranes manufactured specifically- energized electrical line service
Knuckle boom
Trolley boom cranes
Cranes have a maximum rated capacity of one ton or less.
6. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
DEFINITIONS-TYPE OF MOBILE AND LOCOMOTIVE
CRANES
COMERCIAL TRUCK-MOUNTED CRANE: rotating
superstructure (center post or turnable), boom and
operatingstation/s- To lift, lower and swing loads at various
radii.
CRAWLER CRANE- base is equipped with crawler for travel
LOCOMOTIVE CRANE- mounted on a base or car equipped for
travel on a railroad track. Self-propelled or by an outside
source.
WHEEL-MOUNTED CRANE- multiple control stations,-
equipped with axles and rubber-tired wheels for travel,
having separate stations for driving and operating.
WHEEL-MOUNTED CRANE –single control station-for driving
and operating.
7. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
DEFINITIONS-GENERAL
HOIST MECHANISM
BOOM HOIST MECHANISM-supporting and controlling
ACCESSORY
ANGLE INDICATOR (BOOM)-with horizontal
ANTI TWO-BLOCK DEVICE-disangages function cause
two-blocking
(TWO-BLOCK DAMAGE PREVENTION FEATURE
TWO-BLOCK WARNING FEATURE
TWO BLOCKING)
AUXILIARY HOIST
AXIS OF ROTATION
AXLE-wheel rotates/HORIZONTAL
AXLE (BOGIE)-wheeks/VERTICAL
BOOM (CRANE)-member hinged-supporting the
hoisting tackle
BOOM ANGLE
BOOM POINT-outer extremity, containing the hoist
sheave assembly
BOOM POINT SHEAVE ASSEMBLY
BOOM STOP-limit angle the highest
JIB
JIB BACKSTOP
LUFFING ATTACHMENT (jib but it is capable of
changing angle during operation)
MAST (BOOM)/MAST (JIB)
TELESCOPING BOOM
PENDANT –a rope or strand-connections
STANDING (GUY) ROPE-supporting rope
ROPE/ROTATION RESISTANT ROPE
RUNNING ROPE
WHIPLINE (RUNNER OR AUXILIARY)
WINCH HEAD
DRUM
FLANGE POINT-a point of contact between rope and
drum flange where the rope changes layers
REEVING-rope system in which the rope travels around
drums and sheaves
REPETITIVE PICKUP POINT
CROSS-OVER POINTS
PAWL (DOG)-holding a member against motion in one
or more directions
BASE (MOUNTING)-traveling base
WHEEL BASE
TRANSIT (moving or transoirting-jobsite)
TRAVEL (moving jobsite)
CRANE CARRIER-undercarriage
OUTRIGGERS
STABILIZER
CAB
CAB OR STATION-OPERATED CRANES
REMOTE-OPERATED CRANES
OPERATIONAL AID-provices information to facilitate
operation of the crane
COUNTERWEIGHTGANTRY (A-frame)
BALLAST-weight-stability
RAIL CLAMP- be connected to the track
STRUCTURAL COMPETENCE
SUPERSTRUCTURE
JOBSITE
GROUND-OR FLOOR OPERATED CRANES
SWING MECHANISM
SWING-rotation superstructure (horizontal)
SWIVEL--permit rotation under load in a plane
perpendicular to the direction of the load
SWIVELING- hook or shackle
LOAD
PAYLOAD-transporter by the commercial truck chassis
LOAD(WORKING)- in pounds (kg)
LOAD BLOCK, LOWER-suspended by the hoisting
ropes
LOAD BLOCK, UPPER-from boom point (shackle,
swivel, sheaves, pins and frame)
LOAD INDICATOR
LOAD RATING- pounds (chart)
SIDE LOADING
RATED CAPACITY (LOAD) LIMITER
DYNAMIC (LOADING)
STANDBY CRANE
TACKLE-an assembly of ropes and sheaves arrange
for lifting, lowering
POWER-CONTROLLED LOWERING-brakes, soeed…
BRAKE-retarding or stopping motion
CLUTCH-for engagement or disengagement of power
COMMERCIAL TRUCK VEHICLE-transportation
personnel or materials
ADMINISTRATIVE OR REGULATORY AUTHORITY
AUTHORIZED
APPOINTED
DESIGNATED PERSON
QUALIFIED OPERATOR
QUALIFIED PERSON
SHALL = RULE IS MANDATORY
SHOULD= RULE IS RECOMENDATION
8. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
ANTI TWO-BLOCK DEVICE
WINCH HEAD
Ballast (locomotive crane)
9. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
10. RAIL CLAMP- be connected to the track
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
Axes horizontal and vertical (Bogie)
Base-traveling
CRANE CARRIER-undercarriage
Base-traveling
11. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-0
SCOPE, DEFINITIONS AND REFERENCES
12. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
LOAD RATINGS
LOAD RATINGS-WHERE STABILITY GOVERNS LIFTING PERFORMANCE
LOAD RATINGS-WHERE STRUCTURAL COMPETENCE GOVERNS LIFTING
PERFORMACE
LOAD RATING CHART
STABILITY (BACKWARD AND FORWARD)
BACKWARD STABILITY
GENERAL CONDITIONS
MINIMUM BACKWARD STABILITY CONDITIONS
LIMITATIONS IN BOOM LENGTH OR BOOM ANGLE
BOOM HOIST, LOAD HOIST, AND TELESCOPING BOOM
MECHANISMS
BOOM HOIST MECHANISM
LOAD HOIST MECHANISM
TELESCOPING BOOM
SWING MECHANISM
SWING CONTROL
SWING BRAKING MEANS AND LOCKING DEVICE
CRANE TRAVEL
TRAVEL CONTROLS
TRAVEL MECHANISM
TRAVEL BRAKES AND LOCKS
CONTROLS
GENERAL
CONTROL FORCES AND MOVEMENTS
POWER PLANT CONTROLS
ENGINE CLUTCH
ROPE DESIGN FACTORS
ROPE
REEVING ACCESSORIES
SHEAVES
SHEAVES SIZES
LOAD HOOK, BALL ASSEMBLIES AND LOAD BLOCKS
CABS
CONSTRUCTION
PLATFORMS TO CAB
ACCESS TO CAB
CAB ROOF
GENERAL REQUIREMENTS
BOOMS
EXHAUST GASES
OUTRIGGERS
LOCOMOTIVE CRANE EQUIPMENT
WELDED CONSTRUCTION
GUARD FOR MOVING PARTS
CLUTCH AND BRAKE PROTECTION
HYDRAULIC AND PNEUMATIC LINE PROTECION
TWO-BLOCKING FEATURES
LOAD INDICATORS
LUBRICATING POINTS
MISCELLANEOUS EQUIPMENT
STRUCTURAL PERFORMANCE
CRANES USED FOR OTHER LIFTING SERVICE
13. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
LOAD RATINGS
LOAD RATINGS-WHERE STABILITY GOVERNS LIFTING
PERFORMANCE
Locomotive cranes be standing on a track that is level within 1% grade
Radius of the load= horizontal distance from axis of rotation and CG load
Tipping loads –are determinated- static conditons
Weight of all auxiliary handling devices (block, hooks, slings) be considered
a part of the load
All in accordance Crane Load Stability Test Code ANSI/SAE J 765
Additional factors will be influenced-stability:
- Freely suspended loads
- Track
- Wind
- Ground conditions
- Condition and inflation of rubber tires
- Boom lengths
-Proper operating speeds for existing conditions
- Competent operation.
- Any estándar attachments to the boom such as jibs, auxiliary or whip lines
- Effect of lights, pile lead adaptors or other nonstandard attachments
Crane mounted on barges or pontoons-load rating shall be modified
LEVEL
14. TYPE OF CRANE MOUNTING
MAXIMUM LOAD
RATINGS %
Locomotive, without outrigger (stabilizer) support [Note (1)]
Booms 60 ft (18 m) or less 85
Booms over 60 ft (18 m) 85 [Note (2)]
Locomotive, using outriggers (stabilizers) fully extended and set 80
Crawler, without outrigger support 75
Crawler, using outriggers fully extended and set 85
Wheel mounted, without outrigger support 75
Wheel mounted, using outrigger fully extended and set, with tires off supporting surface 85
Wheel mounted, using outrigger beams partially extended and set, with tires off supporting surface Notes (3) and (4)
Commercial truck vehicle mounted, with stabilizers extended and set 85
Commercial truck mounted, using stabilizers partially extended and set Notes (3) and (4)
NOTES:
1. As a precaution while testing for free ratings, outriggers should be loosely applied; rail clamps should not be used.
2. The difference between the backward stability moment and the forward moment resulting from the load should not be less than
30,000 lb-ft (40,675 N . m) with the backward stability moment being the greater.
3. The following formula shall be used for less than full extension of all outrigger beams to find the rated capacity:
P ≤ (T – 0.1F)/1.25
where
F = load applied at boom tip that gives the same moment effect as boom mass
P = rated capacity in the lifting direction specified
T = tipping load
If crane operation with outriggers in positions other than fully extended is permitted by the crane
manufacturer, specified procedures, ratings, and limitations for any configurations that are permitted
shall be provided.
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
LOAD RATINGS
15. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
LOAD RATINGS
LOAD RATINGS-WHERE STRUCTURAL COMPETENCE GOVERNS LIFTING PERFORMACE
Load will produce a condition of tipping increase rapidly and reach extreme values as the minimum operating radius and
tipping fulcrum of the machine are approached.
Some radii may be based on structural competence of the machine rather than stability.
Additional ratings –the work area. Structural competence rather than stability
16. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
Diagrams suplied by the manufacturer.
17. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
18. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
LOAD RATINGS
LOAD RATING CHART
Durable, legible letters in a location accessible to the operator while at the controls.
The data and information included:
- Full and complete range of load rating- all stated operating radii, boom angles,
work areas, boom lengths, jib lengths and angles (of offset), outriggers and extra
counterweights
- Work area chart
- Where rating are limited by structural, hydraulic or other factor – shown and
emphasized on the rating charts
- Recommended reeving for the hoist lines be shown
The following information SHALL be shown on the rating chart or in the operting manual::
- Parts of hoist reeving ,size and type or rope for various crane loads
- Boom hoist reeving diagram, size , type and length of rope
- Tire pressure, where applicable
- Cautionary or warning notes relative to limitations on equipment and operating
procedures, including indication of the least stable direction
- Position of the gantry and requirements for intermediate boom suspension
- Instruction for boom erection and conditions under which the boom, or boom and jib
combinations –raise or lower
-Hoist holding mechanism is automatically, or manually controlled,, whether freefall is
available or any combination
-Maximum telescopic travel length of each boom telescopic section
-Whether sections are telescoped with power or manually
-The sequence and procedure for extending and retracting the telescopic boom section
- Maximum load permitted during the actual boom extending operation, and any limiting
conditions or cautions
- Hydraulic relief valve setting specified by the manufacturer
19. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
20. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
21. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
STABILITY (BACKWARD AND FORWARD)
BACKWARD STABILITY
It is ability to resist overturning in the direction opposite the boom point while the unloaded condition.
GENERAL CONDITIONS
Crane to be equipent for crane operation with shortest recomended boom
Boom positioned at maximum recommended boom angle
Crane to be unloaded (lower load block on support)
Outriggers free of the bearing surface when the crane is counterweighted for “on tires or on wheels”
Crane to be standing on a firm supporting surface- level within 1% grade, locomotive cranes to be standing on a level track.
All fuel tanks to be alt least half fullm and all other fluid levels as specified.
MINIMUM BACKWARD STABILITY CONDITIONS-see next DIAPOSITIVA??
LIMITATIONS IN BOOM LENGTH OR BOOM ANGLE
Provided information on the load chart stating any limitations in boom length
or boom angle for specified operating conditions of outriggers, direction of
boom or other requirementes
22. MINIMUM BACKWARD STABILITY CONDITIONS
Locomotive Cranes- horizontal distance between the CG of the crane and the axis of rotation SHALL not exceed 39% of
the
track gage
Crawler Cranes -horizontal distancce between the CG of the crane and the axis of rotation SHALL not exceed 70% of the
Radial distance from the axis of rotation to the backward tipping fulcrum in the least stable direction
Wheel-Mounted Cranes(Counterweigthed for “on Tires or on Wheels” Operation)-
With longitudinal axis of the rotating at 90º to the longitudinal axis to the carrier, the total load on all wheels-on the side of
the carrier under the boom shall not be less thant 15 % of the total weight of the crane With longitudinal axis of the rotating
in the line with the longitudinal axis to the carrier, the total load on all wheels –under the lighter loaded end of the carrier
shall not be less thant 15 % of the total weight of the crane, in the work area and not less than 10% of the load weight of the
crane in an area not specified as a work area
Wheel-Mounted Cranes (Counterweighted for “on Outrigger” Operation) –machine supported level on fully extended
Outriggers with all tires free, the resistance to overturning in a backward be equivalent (=before)
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
23. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
BOOM HOIST, LOAD HOIST, AND TELESCOPING BOOM MECHANISMS
BOOM HOIST MECHANISM
Use a drum for its drive or hydraulic cylinder(s) and the supporting structure may be a gantry or the same hydraulic
cilinder(s) used to elevate the boom.
Boom hoist be capable of elevating and controlling the boom with its rated load
Boom lowering be done only under power control. Free-fall no permitted.
Boom hoist drum- have sufficiente rope capacity- to operate the boom in all positions (lowest-highest)
Rope-No less than 2 full wraps of rop remain on the Be anchored to the drum.
Drum 1º layer rope pitch diameter of not less than 15 times the nominal diameter of the rope used.
On rope boom support machine- braking mechanism, a ratchet and pawl and other locking devices be provided to prevent
lowering of the boom
An integrally mounted holding device shall be provided with boom support hydraulic cylinder(s) to prevent uncontrolled
lowering the boom in the event of a hydraulic system failure.
24. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
BOOM HOIST, LOAD HOIST, AND TELESCOPING BOOM MECHANISMS
LOAD HOIST MECHANISM- consist of a drum or hydraulic cylinder/s with necessary rope reeving
Load hoist drums- have power and operational characteristics sufficient to perform all load lifting and lowering functions.
-Brakes and clutches be provided with adjustments to compensate for linig wear and to maintain force in springs.
-Load hoist drums have rope capacity , rope size and reeving sufficient to perform crane service. (boom lengths, radiii,
vertical lifts… No less 2 full wraps of ropes on the drum in the extreme low position, drum end be anchored to the drum, the
drum extend a minimum of ½ in (13mm) over the top layer of rope at all times
- The load hoist drums provided a first layer rope pitch diameter of not less than 18 time the nominal diameter of rope.
- A means controllable provided to hold the drum. Foot-operated brakes having a continuous mechanical linkage
-Drum rotation indicators be provide and located to afford sensing by operator
Load hoist brakes- continuous mechanical linkage, if NO, automatic means to prevent the load from failing/Foot-operated
brakes pedals- proper position, not slip off.
Power-Controlled Lowering- to assist in precison lowering
Cylinders with rope reeving- have power and operational characteristics sufficient to perform all load lifting and lowering
functions required in crane service when operated under recommended conditions. Sheaves used in multiple rope
reeving shall have a pitch diameter not less than 16 times the nominal diameter of the rope
TELESCOPING BOOM
Extension and retraction of boom sections- may be hydraulic, mechanical or manual means
Powered retract function – controlling any rated load that can be retracted.
An integrally mounted holding devide be provided to prevent uncontrolled retraction of the boom.
25. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
SWING MECHANISM
SWING CONTROL- start and stop with acceleration and deceleration
SWING BRAKING MEANS AND LOCKING DEVICE
A braking means with holding power in both directions. Locking device to prevent the boom and superstructure from
rotating when in transit.
CRANE TRAVEL
TRAVEL CONTROLS- Auxiliary controls be provided in the crane cab. 2 operator in crane cab and cran is traveling-
comunication be provided between the cabs.
TRAVEL MECHANISM
TRAVEL BRAKES AND LOCKS- crawler, locomotive and on wheel-mounted cranes (Brakes- stop level ground 32ft(10m)
from a speed of 15 mph(6.7m/s)
Vehicle-mounted cranes on commercial trucks shall meet the requirementes of US Departament of Transportation
26. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
CONTROLS
GENERAL
Basic control-be located-operator’s station-CAB
LOAD HOIST, BOOM HOIST, SWING AND BOOM TELESCOPE.
See figure telescoping-type boom of not equiped with telescoping type boom
Emergenciy stop.
CONTROL FORCES AND MOVEMENTS
FORCES Not be grater than 35lb(156N) ON HAND LEVERS/ 50 lb(222N) ON FOOT PEDALS
TRAVEL DISTANCE not be greater than 14in(356 mm) ON HAND LEVERS, TWO WAY LEVERS 24in (610 mm) ON
ONE
WAY LEVERS/ 10 in (254 mm) ON FOOT PEDALS
POWER PLANT CONTROLS
Start and Stop/ Control the Speed/Stop two-cycle disel enginer under emergency conditions/Shift selective transmissions
ENGINE CLUTCH
Mechanical or hydrodynamic drive to any crane function.
27. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
CONTROLS
28. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
ROPES AND REEVING ACCESSORIES
ROPE DESIGN FACTORS
a)Travel or transit positon
Factor of live not be less than 3.5 -running ropes on drums or over sheaves
Factor of live not be less than 3.0- pendants or standing ropes
b)Under recommended boom erection conditions
Factor of live not be less than 3.0 -running ropes on drums or over sheaves
Factor of live not be less than 2.5- pendants or standing ropes
c)Rotation resistant ropes- factor 5 or greater
The factor specified in a)b)and c) be the total nominal breaking strength of all ropes in the system divided by the load
imposed on the rope system when supporting the static weights of structure and crane rated load.
ROPE
Fiber core ropes NOT be used for boom hoist or luffing attachment reeving.
Rotation resistant ropes NOT be used for boom hoist reeving.
Rotation resistant ropes MAY BE USED as boom hoist reeving when load hoist are used as boom hoists for attachment
such as luffing attachment or boom and mast attachments system-following requerimentes shall be met:
- Provide a first-layer rope pitch diameter of not less than 18 time the nominal diameter of he rope used
- All the requirementes of the boom hois mechanism
- All sheaves used –have a rope pitch diameter of not less than 18 times the nominal diameter of the rope used
-The design factor be the total minimum breaking force of all parts of rope in the system divided by the load imposed
on the rope system when supporting the static weights of the structure an the crane rated load
-The frequency of inspection of wire rope be increased
Rotion resistant rope-Special care during installation.
Socketing = specified by the manufacturer.
If a load is supported by more than one part of rope, tension in the parts be equilized
Exposed to ambient temperatures at the rope in excess of 180ºF (82ºC)
29. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
ROPES AND REEVING ACCESSORIES
REEVING ACCESSORIES
Eye splices be made in a manner recommended- manufacturer and Rope thimbles should be used in the eye.
Wire rope clip- U-bolt or double-saddle –type clip. Number of clip- manufacturer’s recommendation.
Swaged, compressed or wedge socket fitting be applied as recommended. Be proof tested but in no case greater than
50% of the nominal strength of the component wire rope or structural strand.
Wire rope clips used in conjunction with wedge sockets be attached to the unloaded dead end of the rope (See fig.)
30. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
ROPES AND REEVING ACCESSORIES
SHEAVES
Free from surface defects that could cause rope damage.
The cross-sectional radius at the bottom of the groove should be such as to form a close-fitting saddle for the size of
rope used.
The sides of the groove shall be tapered outward and rounded at the rim to facilitate entrance of the rope into the
groove.
Guards to protect from dirty and to guide the rope back into the groove
Lubrication
SHEAVES SIZES
Boom hoisting sheaves- diameters of not less than 15 times the nominal diameter of the rope use
Load hoisting sheaves- diameters not less than 18 times
Load block (lower) sheaves – diameter not less than 16 time the nominal diameter….
31. LOAD HOOK, BALL ASSEMBLIES AND LOAD BLOCKS-
Be of sufficiente weigth to overhaul the line from the highest hook position for boom or boom
or boom and jib lengths, and the number of parts of line in use.
All be labeled with their rated capacity and weight. All hook be equiped with latches-
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
32. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
CABS
CONSTRUCTION
Insofar as is practical, be constructed to proted brakes, clutchs and operator’s station from the weather.
Glazing be safety (material defined in ANSI Z26.1) Good visibility, one windshield wipper on the front windows.
All doors- sliding or swinging type. Be restraines from inadvertent opening or closing while traveling or operting.
Seat belt be provided in all single-control-station during transit and travel
PLATFORMS TO CAB
Walking surface be of skid-resistant type. Guardrails in accordance with ANSI/SAE J185. (Handholds-too
narrow)
ACCESS TO CAB
Handholds and steps be provided for access to the car and cab.
Walking surfaces be of a skid-resistant type
CAB ROOF
Ladder or steps be provided to give access to the cab roof.- Conform to the requirements of ANSI/SAE J185
Areas of the cab roof be capable of supporting the weight of a 200 lb(90kg) person
33. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
GENERAL REQUIREMENTS
BOOMS
Boom stops- to resist falling backwards (fixed or telescoping bumper/shock
absorbing bumper or/hydraulic boom elevation cylinder )
Jibs be restrained from backward overturning
Boom angle or radius, and length indicator readable from the operator’s
station be provided
Boom hoist disconnect, shutoff or hydraulic relief be provided to
automatically stop ( boom reaches a predetermined high angle)
Booms, boom sections and jibs be identified
EXHAUST GASES- be piped to the outside of the cab and discharged in a
direction away from the operator.
OUTRIGGERS- retracted position while traveling, and in the extended
position when set for operating. Valves prevent loss of support under load.
Correct fastening. Partially extended outrigger beams-Visible indication
such as stripes painted on the outrigger beams- position
LOCOMOTIVE CRANE EQUIPMENT
Truck wedges or Jacks-Releasable.
WELDED CONSTRUCTION- in accordance ANSI/AWS D14.3 on load –
other
materials- manufacturer provide welding procedures
GUARD FOR MOVING PARTS- Exposed moving parts be guarded/Be
fastened and be capable of supporting weight of a 200 lb (90kd)- a person
to step on it
CLUTCH AND BRAKE PROTECTION- dry friction brakes and clutches be
protected against rain and other liquid (oil, lubricants)
HYDRAULIC AND PNEUMATIC LINE PROTECION- in so far as it is
practical
OPERATINAL AIDS- manufacturer provide recommendation for continued
operation or shutdown of the crane if operational aids are inoperative or
34. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-1
CONSTRUCTION AND CHARACTERISTICS
GENERAL REQUIREMENTS
TWO-BLOCKING FEATURES- Telescopic and lattice boom be equipped with an anti-two-block device or a two-block damage
prevention feature for all points of two-blocking
LOAD INDICATORS, RATED CAPACITY INDICATORS AND RATED CAPACITY LIMITERS-all crane wit ha maximum
rate load capacity of 3 tons or more should have it
LUBRICATING POINTS-be accesible without the necessity of removing guards or other parts
MISCELLANEOUS EQUIPMENT- Fuel tank. Tool box (tools and lubricanting equipment).Audible signal. Means to visually
determine the levelness of the crane. Hydraulic relief valves. Meand for checking pressure setting in each hydraulic
circuit. A sign visible from the opertor’s station- warning that electrocution a minimum clearance of 10ft(3m) between
crane or load for energized power lines up to 50 kV
STRUCTURAL PERFORMANCE
meet the performance requirements of ANSI/SAE J987– ANSI/SAE J1069- special design
LUBRICATING POINTS
35. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
INSPECTION-GENERAL
INSPECTION CLASSIFICATION
Initial Inspection
Regular Inspection
Frequent Inspection
Periodic Inspection
FREQUENTE INSPECTION
PERIODIC INSPECTION
CRANES NOT IN REGULAR USE
INSPECTION RECORDS-Periodic inspections
OPERATORATIONAL AIDS-Prior to daily operation,
TESTING
OPERATIONAL TESTS
RATED LOAD TEST
MAINTENANCE
PREVENTIVE MAINTENANCE
MAINTENANCE PROCEDURE
ADJUSTMENTS AND REPAIRS
LUBRICATIONS
ROPE INSPECTION, REPALCEMENT AND MAINTENANCE
GENERAL
INSPECTION
ROPE REPLACEMENT
ROPE MAINTENANCE
36. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
INSPECTION-GENERAL- Manufacturer- furnish information- assembly, operation and maintenance
INSPECTION CLASSIFICATION
Initial Inspection- prior to initial use, new or altered crane
Regular Inspection- frequent and periodic, depend on the degree of their exposure to wear, deterioration or malfunction
Frequent Inspection- daily to monthly intervals
Periodic Inspection- 1 to 12 month intervals
FREQUENTE INSPECTION
Iterms be inspected by a designated person:
-All control mechanisms for maladjustment interfering with proper operation, daily
-All control mechanisms for excessive wear of component and contamination by lubricants or other foreign matter
-All safety devices for malfunction
-All hydraulic hoses, visually inspected once every working day
-Hooks and latches for deformation, chemical damage, cracks and wear (ASME B30.10)
-Roper reeving for compliance with crane manufacturer’s specifications
-Electrical apparatus for malfunctioning, signs of excessive deterioration, dirt and moisture accumulation
-Hydraulic system for proper oil level- daily
-Tires for recommended inflation pressure
37. ASME B 30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
INSPECTION-GENERAL
PERIODIC INSPECTION
Be performed by a qualified person at intervals, depending upon its activity, severity of service, and environment, or as
specifically indicated below. Any deficiencies:
-Deformed, cracked, or corroded members in the crane structure and entire boom
-Loose bolts or rivets
-Cracked or worn sheaves and drums
-Worn, cracked or distorted parts such as pins, bearings, shafts, gears, rollers and locking devices
-Excessive wear of chain drive sprockets and excessive chain stretch
-Any significant inaccuracies of operational aids
-Lack of performance and compliance with safety requirements of gasoline, diesel, electric and other power plants
-Crane hooks , inspected for cracks
-Travel steering, braking and locking devices,
-Excessive worn of damage tires
-Hydraulic an pneumatic hose, fittings and tubing inspection
*Evidence of leakage at the surface of the flexible hose or its juction with the metal and coupling
*Blistering or abnormal deformation of the outer covering of the hydraulic or pneumatic hose
*Leakage at threaded of clamped joints that cannot be liminated by normal tightening or recomended procedure
*Evicende of excessive abrasion or scrubbing on the outer surface of a hose, rigid tube or fitting. Means be taken to
eliminate the interference of elements in contact or otherwise protect the componets.
-Hydraulic and neumatic pumps and motors
-Hydraulic and pneumatic valvees
-Hydraulic and pneumatic cylinders
-Hydaulic filters
38. ASME B 30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
INSPECTION-GENERAL
CRANES NOT IN REGULAR USE
A crane that has been idle 1 month or more, but less than 6 month- inspection by a qualified person
More than 6 months be given a complete inspection
Standby cranes be inspected at least semiannually. Cranes that are exposed to adverse environmental conditions be
inspected more frequently
INSPECTION RECORDS
Periodic inspections- brakes, crane hooks, ropes, hydraulic and peneumatic cylinder and hydraulic and pneumatic relief
pressure valves
Be kept wher available to appointed personnell.
OPERATORATIONAL AIDS
Prior to daily operation, operational aids be checked in accordance- manufacturer’s recommended procedures
Inspected and tested by a qualified person
When operational aids are inoperative or malfunctioning- device for continued operation be corrected
((((Load Indicating. Anti-Two Block, Two-block warning and Two-block damage prevention systems
Prior to daily operation. System be inspected every 12 months or more frequently if specified by the manufacturer.))))
39. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
TESTING
OPERATIONAL TESTS
Each new production crane be tested-to ensure compliance wit hthe operational requirements section, including:
-Load lifting and lowering mechanism
-Boom liftng and lowering mechanism
-Boom extensionand retraction mechanism
-Swinging mechanism
-Travel mechanism
-Safety devices
-Operational aids
Where the complete production crane is not supplided by one manufacturer-test be conducted at final assembly
Operational crane test results be made available.
RATED LOAD TEST
Prior to initial use
Test load shall not exceed 110% of the manufacturer’s load rating.
Written report be furnished by an appointed person.-test procedures and confirming the adequacy of repairs or alterations
Where rerating is necessary
Crawler and wheel-mounted cranes be tested- structural- 110% of the rating
Locomotive cranes in accordance with load rating.
The rerating test report shall be made available
No crane be rerated in excess of the original load ratings
40. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
MAINTENANCE
PREVENTIVE MAINTENANCE
Manufacturer’s recommendations. Replacement parts be obtained from manufacturer.
MAINTENANCE PROCEDURE
Before adjustments and repairs- crane placed (no interference with other equipment or operations), all control in
the off position and all operating features secured, starting means inoperative, power takeoff, boom lowered ot
the ground or secured against dropping, lower load block lowered to the ground or secured against
dropping,relieve hydraulic oil pressure before or removing hydraulic componet..
Out of order- warning- on the crane controls
After adjustments and repairs returnes to service- safety devices reactived and maintenance equipment removed
ADJUSTMENTS AND REPAIRS
Be done only by designated personnel.
Ensure correct functioning of componets (functional operating mechanisms, operational aids, pneumatic,
electronic, hydraulic and mechanical control sysems, power plant and braking systems.
Repairs or replacemtns be provided as needed for operation (critical parts of FUNCTIONAL operating
mechanism
are cracked, broken, corroded, bent or excessively worn, STRUCTURE-cracked, bent, broken or excessively
corroed, HOOK damaged or worn,
Replacement parts or repairs have at least the original design factor
Instructions be provided for the removal of air from hydraulic circuits
LUBRICATIONS
Follow the manufacturer’s remommendations – as to the point and frequency, levels and types of lubricant used
Machinery be stationary
41. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
ROPE INSPECTION, REPALCEMENT AND MAINTENANCE
GENERAL
Sheave, and drum diameters and rope design factors are limited. Timely replacement see next points.
INSPECTION
Frequent Inspection
Rope be visually inspected once each working day.
Care be taken when inspecting sections of rapid deterioration such as flange points, crossover points and repetitive pickup
points on drums
Care be taken when inspecting certain ropes such as the following: rotation resistant ropes (internal deterioration no
observable) and boom hoist rope
Periodic inspection
Be determined by a qualified person and be based on such factors as expected rope life as determined by experience on
the particular installation or similar installations, severity of environment, percentage of capacity lifts, frequency rates of
operation, and exposure to shock loads.More frequent as the rope approaches the end of its useful life-
Be performed at least ANNUALLY.
Cover the entire length of the rope (no open), see the points in frequent inspections, reduction of rope diameter due to
loss of core (internal or external corrosion), severely corroded, cracked bent, worn or improperly applied end connections.
Inspecting sections of rapid deterioration such as: section in contacts with saddles, equalizar sheaves of other sheaves,
and
sections of rope at or near terminal ends where corroded or broken wire may protude.
42. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
ROPE INSPECTION, REPALCEMENT AND MAINTENANCE
ROPE REPLACEMENT
No exact time for rope replacement.
REMOVAL CRITERIA-
Broken Wires- running rope 6 broken wires in one lay or 3 broken wires in one strand in one lay/rotation resistant
rope 2 broken wire in six rope diameter or 4 broken wire in 30 rope diameters
One outer wire wroken at the point of contact with the core of the rope
Wear of one-third the original diameter of outside individual wires
Kinking, crushing,birdcaging, or any other damage resulting in distortion of the rope structure
Evidence of any heat damage
Reduction from nominal diameter of more than..
1/64 in. (0.4 mm) for diameters up to and including 5/16 in. (8.0 mm);
1/32 in. (0.8 mm) for diameters 3/8 in. (9.5 mm), to and including ‘/2in. (13.0 mm);
3/64 in. (1.2 mm) for diameters 9/16 in. (14.5mm), to and including 3/4 in. (19.0 mm);
1/16 in. (1.6 mm) for diameters 7/8 in. (22.0 mm), to and including 1 1/8 in. (29.0 mm);
3/32 in. (2.4 mm) for diameters 1 1/4 in. (32.0mm) to and including 1 1/2 in. (38.0 mm).
Standing ropes, more than two broken wires in one lay –end connection or more than one wire at an end
connection
Broken wire removal criteria cited- apply to wire rope operating on steel sheaves and drums
Replacement rope have a strength rating at least as great as the original rope furnished or recommended by the
crane manufacturer.
Ropes not in regular use- for a period of a month or more – periodic inspection before it is placed in service
Inspection records- Frequent inspection- no records required
- Periodic inspection- kept on file- Need be recorded
A long-range inspection program be established- include records on the examination of ropes removed from service- so
that a relationship can be established between visual observation and actual condition of the internal structure.
BROKEN STRAND
BROKEN WIRES
43. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-2
INSPECTION, TESTING AND MAINTENANCE
ROPE INSPECTION, REPALCEMENT AND MAINTENANCE
ROPE MAINTENANCE
Rope be stored to prevent damage or deterioration
Unreeling or uncoiling of rope be done as recommended by the rope manufacturer- avoid kinking or twist
Before cutting a rope, seizing be palced on each side of the place where the rope is to be cut to prevent
unlaying of the strands
On preformed rope- one seizing on each side of the cut is required
On nonpreformer rope of 7/8 in (22mm) diameter or smaller, 2 seizing on each side of the cut are required
On nonpreformerd rope of 1 in(26mm) diameter or larger, 3 seizing on each side of the cut are required.
During installation, care be exercised to avoid dragging of the rope in dirt or around objects that will scrape,
nick, crush or induce sharp bends in it
Rope- be in a well-lubricated condition. Lubrication reduce inernal friction and to prevent corrosion.
A greater wear at well defined localized- cutting of a section
Seizing Wire Rope
Proper seizings must be applied on both sides of the place
where the cut is to be made.
Either of the following seizing methods is acceptable.
Method No. used on wire ropes +1 inch in diameter.
Method No. 2 applies to ropes 1 inch and under.
Method No. 1
Method No. 2
Pre-formed
Non-preformed
44. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
1.QUALIFICATIONS FOR AND CONDUCT OR OPERATORS
AND OPERATING PRACTICES
OPERATORS
QUALIFICATIONS FOR OPERATORS
CONDUCT OF OPERATORS
2.OPERATING PRACTICES
HANDLING THE LOAD
SIZE OF LOAD
OPERATIONAL AIDS
ATTACHING THE LOAD
HOLDING THE LOAD
MOVING THE LOAD
PERSONNEL LIFTING
3.SIGNALS
GENERAL
STANDARD SIGNALS
SIGNAL PERSON QUALIFICATIONS
STANDARD HAND SIGNALS
STANDARD SPECIAL SIGNALS
STANDARD VOICE SIGNALS
SPECIAL SIGNALS
AUDIBLE TRAVEL SIGNALS
AUDIBLE EMERGENCY SIGNALS
4.MISCELLANEOUS
RAIL CLAMPS
BALLAST OR COUNTERWEIGHT
RERAILING LOCOMOTIVE CRANES
SWINGING LOCOMOTIVE CRANES
OPERATING NEAR ELECTRIC POWER LINES
GENERAL
GRANE OPERATION NEAR DEENERGIZED AND GROUNDED
ELECTRIC POWER LINES
CRANE OPERATION WITHIN THE ERECTED/FULLY-EXTENDED
BOOM LENGTH OF THE PROHIBITED ZONE, WITH THE POWE
LINES ENERGIZED
CRANE OPERATION WITHIN THE PROHIBITED ZONE WITH THE
ELECTRIC POWER LINES ENERGIZED
OPERATIONS IN TRANSIST WITH NO LOAD AND BOOM LOWERED
FOOTING
CABS
REFUELING
FIRE EXTINGUISHERS
45. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
1. QUALIFICATIONS FOR AND CONDUCT OR OPERATORS AND OPERATING PRACTICES
OPERATORS
Cranes be operated by:
- Persons who have met the requirements of Qualification for Operators a,b,c(nextpoint)
- Persons who have met the requiremente of Qualification for Operators d and who are
training for the type of crane being operated.
(The training must be under the direct supervision of designated, qualified operator)
- Maintenance personnel who have completed all operator trainee qualification
requirements.
(Operation be limited- crane functions necessary to perform maintenance on the crane or
to verity the performance of the crane after maintenance has been performed)
- Inspector who have completed all operator trainee qualification requirements-
(Only crane functions necesary to accomplish the inspection)
Only the personel specified in above, oiler, supervisor and person authorized by supervisor shall
enter a crane cab.
46. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
1. QUALIFICATIONS FOR AND CONDUCT OR OPERATORS AND OPERATING PRACTICES
QUALIFICATIONS FOR OPERATORS
Meet the qualifications for the specific type crane (fig.1-10 MOVEMENT/TYPES)
a) Operator and operator trainees meet the following PHYSICAL QUALIFICATIONS:
• Visual of at least 20/30 snellen in on eye and 20/50 in the other, with or without corrective lenses
• Ability to distinguish color, regardless of position,, if color differentiation is required
• Adequate hearing, to meet operational demands with or without hearing aid
• Sufficient strength, endurance, agility, coordination and speed of reaction to meet the operation demands
• Normal depth perception, field of vision, reaction time, manual dexterity, coordination and no tendencies to dizziness.
• A negative result a substance abuse test-/No evidence of physical defects or emotional instability/No evidence is subject to loss of physical control
b) Operator REQUIREMENTS INCLUDE:
• Evidence of successfully passing a physical examination as defined in a)
• Satisfactory completion of a written examination covering:
Operational characteristics
Controls and emergency control skills
Fire
Power line contact
Loss of stabiliy
Control malfunction
Stability questions
• Ability to read, write, comprehend, and use:
Arithmetic
Load/capacity chart usage
Maintenance instruction materials
• Satisfactory Completion of a combination written and verbal test on load/capacity chart usage
• Completing an operation test demostrating proficiency in handling the specific type crane :
Pre-star and post-start
Inspection
Maneuvering skills
Shutdown
Securing procedures
• Understanding section of B30 Standard and federal state and local requirements
47. QUALIFICATIONS FOR OPERATORS
Meet the qualifications for the specific type crane (fig.1-10 movement and types)
c) Operator who supervision deem it necessary REQUALIFICATION include:
-Evidence of successfully passing a current physical examination a)
- Satisfactory completion of a written examination
- Ability to read, write, comprehend, and use arithmetic,load/capacity chart usage, maintenance instruction materials
- Satisfactory Completion of a combination written and verbal test on load/capacity chart usage
- Completing an operation test demostrating proficiency in handling the specific type crane :
- Understanding section of B30 Standard and federal state and local requirents
d) TRAINEE qualification requirements:
- Evidence of successfully passing a current physical examination a)
- Satisfactory completion of a written examination
Operational characteristics and limitations
Controls of the crane type
- Ability to read, write, comprehend, and use arithmetic,load/capacity chart usage, maintenance instruction
materials
- Satisfactory Completion of a combination written and verbal test on load/capacity chart usage
- Completing an operation test demostrating proficiency in handling the specific type crane :
- Understanding section of B30 Standard and federal state and local requirents
Trainee qualification, operator qualification and operator requalification be performer by a designated person who by
experience and training, fulfills the requirements of a qualified person
Operator physical examinations be required every 3 years as defined in a) o more frequently .
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
1. QUALIFICATIONS FOR AND CONDUCT OR OPERATORS AND OPERATING PRACTICES
48. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
1. QUALIFICATIONS FOR AND CONDUCT OR OPERATORS AND OPERATING PRACTICES
CONDUCT OF OPERATORS
Operator not engage in any practice that will divert his/her attention while operating the crane
When physically or mentally unfit- operator shall not operate equipment
The operator understad the use of signals.
The operator is responsible for the lifts.
Obey a stop signal at all times, no matter who gives it
Any doubt as to safety, operator consult with the supervisor before handling the loads
Before leaving the crane unattended the operator shall:
- Land any load, bucket, lifting magnet or other device
- Disengage the master clutch
- Set travel, swing, boom brakes, and other locking devices
- Put controls in the off or neutral position
- Secure the crane against accidental travel
- Stop the engine
- An exception to stop the engine- during a shift, the engine may remain running and the following conditions shall apply:
• Operator be situated where unauthorized entry of the crane can be observed
• Crane be located within an area protected from unauthorized entry
- When a local weather storm warning exists- recomendations of the manufacturer for securing the crane
Before closing the switch or starting the engine, operator see that all controls are in the off or neutral position
If power fails during operations, operator shall:
• Set all brakes and locking devices /
• Power control to the off or neutral position
• If practical, land the suspended load under brake control
Adjustments or repairs are necesary, operator shall promptly report (appointed person) and notify the next operator.
All controls be tested by the opertor at the start of a new shift
The manufacturer’s boom assembly and disassembly procedures be followed.
When removing pins or bolts from a boom workers stay out from under the boom
Each outrigger be visible to the operator or to a signal person during extension or setting
49. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
2. OPERATING PRACTICES
HANDLING THE LOAD
SIZE OF LOAD
Load rating chart (except testing)
Load to be lifted be within the rated capacity of the crane in its existing configuration
Load- know the weight- or designated person responsible- not exceed the crane rating at the maximum radius.
When ROTATION RESISTANT ROPES are used with an operating DESIGN FACTOR LESS THAN 5 (no case less than 3,5) shall
apply:
- For each such lifting assignment
• An appointed person direct each lift
• A qualified person shall ascertain that the rope is in satisfactory conditions (one broken wire-sufficente reason no lift)
• Operations be conducted in such a manner and at such speeds --minimize dynamic effects
- Each lift under these provision be recorded in the crane inspection and be considered before permitting another such lift
- Theses provision are not intended to permit duty cycle or repetitive lifts to be made with operaitng design factors less than 5
OPERATIONAL AIDS
In all cases, VERIFIED WEIGHTS, MEASURED RADII, CHART CAPACITIES AND ISNTRUCTIONS.
When operational AIDS ARE INOPERATIVE OR MALFUNCTIONING- following requirements shall apply:
-Recalibration or repair, as soon as reasonably possibe
-When a load indicator, rated capacity indicator, or rated capacity limiter is inoperative or malfunctioning- supervisor determine load
weight
-When a boom angle or radius indicator is inoperative, be determined by measurement
-When an anti-two-block, two-block damage prevention or two-block warning device it is inoperative, assign an additional person,
to furnish equivalent protection. No apply when lifting personnel..
-When a boom length indicator is inoperative-designated person for supervising establish procedures
-When a level indicator is inoperative, other means be used to level the crane
ATTACHING THE LOAD
The hoist rope shall not be wrapped around the load
The load shall be attached to the hook by means of slings or other devices of sufficient capacity
50. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
2. OPERATING PRACTICES
HANDLING THE LOAD
HOLDING THE LOAD
The operator shall not leave the controls while the load is suspended
No person -under a suspended load
If the load hoist mechanism is not equipped with an automatic brake, -load suspended-operator shall hold the
drum from rotation in the lowering direction and brakes. And boom breaking mechanism and ratchet and pawls.
As an exception, where a load is to be held suspended for a periof of time exceeding normal operations,
Appointend and operator establish the requirements for restraining the boom hois, telescoping,load, swing, and
Outrigger functions, and provide notices, barricades or other precautions may be necessary
51. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
2. OPERATING PRACTICES
HANDLING THE LOAD
MOVING THE LOAD
The person directing the lift shall see that
• The crane is level and, where necessary, blocked
• The load is well secured and balanced in the sling or lifting device before it is lifted more than a few inches
• The lift and swing path is clear of obstructions-All persors are clear of the swing radius of the crane counteweight
Before starting to lift, the following conditions should be noted:
• The hoist rope shall not be kinked
• Multiple-part lines shall not be twisted around each other
• The hook be brought over the load in such a manner as to minimize swinging
• If ther is a slack rope condition, rope is seated on the drum and in the sheaves
• The effect of ambient wind on the load and on crane stability
During lifting operations, care shall be taken that:
• No sudden acceleration or deceleration of the moving load
• Load, boom, or other parts of the machine do no contact any obstruction
Side loading o boom shall be limited to freely suspended loads. Cranes shall no be used for dragging loads sideways.
The operator should avoid carrying loads over people.
On wheel-mounted cranes, no load shall be lifted over the front area, except as specified by the crane manufacurer
The operator shall test the brakes each time a load approaching the rated load is handled by lifting it a few inches and applying
the brakes.
Use of outriggers be fully/partially extended or unequal position or deployed per load rating chart specifications and set to
remove the machine weigth from wheels except for locomotive cranes.
Two full wraps of rope remain on their respective drums (so neither the load nor the boom be lowered below that point)
52. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
2. OPERATING PRACTICES
HANDLING THE LOAD
MOVING THE LOAD
Two or more crane are used to lift one load, one designated person be responsible for the operation
In transit the following additional precautions shall be exercised:
• The boom be carried in line with the direction of motion
• The superstructure shall be secured against rotation
• The empty hook be lashed or restrained so that it cannot swing freely
Traveling a crane with a load-no prohibited by the manufacturer. Necessity to reduce crane rating, load position, boom location, ground support,travel route,
and speed of movement-be determinate. Control swinging of the load (tag or restraint lines), tire pressure, boom be carried in line with the direction of
travel. Slow movemente (stars, stop ), and tad lines be used to control swinging of the load
A crane with or without a load shall not be traveled with the boom so high (it may bounce back over the cab)
When rotating the crane, sudden starts and stops be avoided. Rotational speed be such that the load does not swing out beyond
the radius at which it can be controlled
When a crane is to be operated with the boom at a fixed angle, the boom-hoist pawl or other positive holding device shall be engaged
Use of whinch heads:
• Fiber and wire rope be handled on a winch head without the knowledge of the operator
• The operator be within convenient reach of the power unit control lever (while a winch head is being used)
Personnel shall not be permitted to ride the bare hook or a load of material suspended from the hook
PERSONNEL LIFTING
Mobile and locomotive cranes are designed and intended for handling materials and no personnel.
Personnel are only permitted to ride in a personnel platform supported by the crane load line attachment
– see requirements ASME B30.23 and the manufacturer’s instructions.
53. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
3. SIGNALS
GENERAL
-Communication between the crane operator and the signal person be maintained continuosly
during all crane movement
-Any concerns regarding the requested movement-to communicate with the signal person- stop
all crane movement
- If it is desired to give instruction to the operator, other than than those provide by established
signal system, movements be stopped
STANDARD SIGNALS
Hand signals or voice communication equipment (telephone, radio or equivalent)
No response be made unless signals are clearly understood
SIGNAL PERSON QUALIFICATIONS
Prior be tested by a designated person and demonstrate their qualifications:
-Basic understanding of crane operation and limitations
-Standard hand signals are used
-Standard voice signals are used
STANDARD HAND SIGNALS
See next
54. STOP
ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
3. SIGNALS
HOIST LOAD LOWER LOAD
RAISE BOOM LOWER BOOM
HOIST LOAD
SLOWLY
RAISE BOOM AND
LOWER LOAD
LOWER BOOM AND
RAISE LOAD
SWING LOAD IN
DIRECTION FINGER POINTS
STOP DOG
EVERYTHING
EXTEND BOOM RETRACT BOOM
USE MAIN HOIST
USE WHIPLINE
(AUXILIARY HOIST)
55. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
3. SIGNALS
STANDARD VOICE SIGNALS
Prior the signals be discussed and agreed upen by the person directing lifting operation, crane operator and
singal person.
-Telephones, radios or equivalente. Battery power- extra batteries
-Prior to commencing a lif t all persons contact and identify each other
-All directions given by signal person be given from the operator’s direction perspective
-Each series of voice signals contain 3 elements stated
FUNTION+DIRECTION-----DISTANCE OR SPEED-----FUNCTION STOP-
Example- Swing right 50 feet, 25 feet, 15 feet, 10 feet, 2 feet, swing stop
Load down 100 feet//load up slow, slow, load stop.
-The person directing lifting operation consider the complexity of the lift, capabilities of the crane, experience
and skill of the operator and signal perosn, and the ability to communicate the necessary signals.
SPECIAL SIGNALS
Be agreed upon in advance by both the operator and the signal person, and not be in conflict iwth standard
signals
AUDIBLE TRAVEL SIGNALS
STOP- 1 audible signal
GO AHEAD- 2 audible signals
BACK UP- 3 audible signals
AUDIBLE EMERGENCY SIGNALS
Can be given by anyone. (multiple short audible signals or a continuous audible signal)
56. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
RAIL CLAMPS
If used, have some slack between the point of attachment to the rail and the end fastened to the crane
BALLAST OR COUNTERWEIGHT
Specified by the crane manufacturer.
Maximum not be exceeded (failure-structrural/ manufacturer’s marging ob backward stability =crane may turn
over backwards or damage various parts of the machine)
RERAILING LOCOMOTIVE CRANES
If crane has been derailed, a wrecking frog of car replacer be used and the crane be hauled back onto the track
by external power.
SWINGING LOCOMOTIVE CRANES
Not be swung into a position where railway cars on an adjacent track might strike it
57. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
OPERATING NEAR ELECTRIC POWER LINES
GENERAL
Load line, crane or load becoming a conductive path. See Fig.No enter the prohibite zone
Any overhead wire- be considered to be an energized lines unless the person owning such line or the electrical utility authorities
indicate it is not an energized line. No rely on the covering of wires for their protection.
Conditions to consider (next 4 points)
GRANE OPERATION NEAR DEENERGIZED AND GROUNDED ELECTRIC POWER LINES
Following steps be taken to assure denergization of the power line:
- Power company or owner- de-energize the lines
- Lines be visibly grounded to avoid electrical feedback and appropriately marked at jobsite location
- Qualified representative of the owner of the line- verify that steps
- Durable signs be installed at the operator’s station and on the outside of the crane (Table 1)
- If carge-type boom guards, insulating links or proximity warning devices are used on cranes-
58. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
CRANE OPERATION WITHIN THE ERECTED/FULLY-EXTENDED BOOM LENGTH OF THE PROHIBITED ZONE, WITH THE POWE
LINES
ENERGIZED
Following steps to minimize the hazard of electrocution or serius injury:
- Establish the procedures to safely complete the operations- project managemente, representative of the owner o designated person
- Specified clearance see Table (Between power line, load and crane ALL THE TIME)
- Load control- tag lines of a no-conductive type
- Qualified signal person/s to verify clearance
- No one be permitted to touch the crane or load unless the signal person indicates it is safe to do so
- Operation of boom and load over electric power lines AVOID
- The horizontal and vertical distance of movement of long span lines due to the wind be added to the minimum clearance
- Ribbons, balls… be attached to improve visibility, to aid in location of the prohibited zone
- Durable signs be installed at the operator’s station and on the outside of the crane (Table 1)
- If carge-type boom guards, insulating links or proximity warning devices are used on cranes-
59. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
OPERATING NEAR ELECTRIC POWER LINES
CRANE OPERATION WITHIN THE PROHIBITED ZONE WITH THE ELECTRIC POWER LINES ENERGIZED
Before such operations- qualified person with a qualified representative or an engineer qualified in power line transmission, determinate the
most feasible way to complete the operation and set the minimum required clearances and procedures.
- Crane/load grounded to line neutral by the utility
- Electrical system protective devices that automatically reenergize the circuit after a power line contact occurrence- be blocked to inhibit
this fuction
- Insulated barriers, which not allow contact between the energized electric power lines and crane, load lines or load
- No-conductive barricades to restric access to the crane work area
Load control, utilize tag line of a non-conductive type
Qualified signal persons/s verify the clearance, in constant contact with the crane operator
Person/s responsible for the operation, alert and warn the crane operator and all persons woerking around or near the crane to avoid the
hazard
All non-essential personnel be removed from the crane work area
No one be permiteed to touch the crane or load
If carge-type boom guards, insulating links or proximity warning devices are used on cranes-
OPERATIONS IN TRANSIST WITH NO LOAD AND BOOM LOWERED
Clearance be as specified in Table 1
The effect of speed and terrain on boom and crane movement be considered
60. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
FOOTING
Firm footing under both crawler track, all tires or individual outriggers pads be level within 1%.
(Timbers, cribbing or otherstructural members to distribute the load)
61. ASME B30.5: MOBILE AND LOCOMOTIVE CRANES
CHAPTER 5-3 OPERATION
4. MISCELLANEOUS
CABS
Tools, oil cans, waste and other articles be stored in the toolbox.
Clothing and personal belongings not interfere with access or operation.
REFUELING
Portable container- be a safety-type with an automatic closig cap and a flame arrester
Not be refueled while the engine is running.
Smoking or open flames be prohibited in the refueling area
FIRE EXTINGUISHERS
Minimum extinguisher rating of 10BC be installed in the cab or at the machinery housing.
Operating and maintenance personnel be familiar with the car and use ofthe fire extinguishers provided.