BITUMAT EBOOK - Good overview of set-up and operation.

1. BITUMAT B2 eBook
The Complete Resource Guide
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2. Table of Contents:
Section 1: Product Details (pg.3)
Section 2: Operating Instructions (pg. 8)
Section 3: Resources (pg. 28)
Section 4: Parts List (pg. 44)
Section 5: Accessories (pg. 52)
Section 6: Related Products (pg. 54)
Section 7: Service and Support (pg. 57)
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3. Section 1
Product
Details
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4. Product Details
Leisterʼs BITUMAT B2 is designed to weld modified bitumen
roofing sheets (SBS, APP).
This automatic welder is safer than traditional welding
torches because it uses hot air to heat the bitumen, not an
open flame, decreasing the risk of fire.
It is also more efficient because it only requires one
operator—unlike open-flame torches where two operators
are needed—helping to keep your workforce more
productive.
The BITUMAT B2 is the only bitumen welder that makes granular-to-granular welding
possible. The BITUMAT B2 produces so much heat that the bitumen liquifies, melting the
granular surface into the material before the two pieces are firmly pressed together to create
a strong weld.
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5. Call for a Quote
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Product
Details
The BITUMAT B2 offers the following features and
benefits:
• Flame-free welding of modified bitumen.
• Peel and shear strengths up to 3 times stronger than
flame welding.
• Easy control of hot-air volume.
• High working speed.
• Air dam to contain and centralize hot air over the
weld.
• Adjustable guide bar to prevent back strain.
• Requires only one operator.
No matter the thickness, type of surface finish, operator or weather conditions, the
BITUMAT B2 produces consistent, repeatable seam welds on any modified bitumen roofing
system.
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6. Call for a Quote
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Product
Details
Voltage V~ 230
Power consumption W 6,700
Temperature oF 68 - 1,202
Speed ft./min. 2.6 - 39.4
Noise Emission LpA dB 73
Size (L x W x H) in. 27.2 x 19.3 x 13
88.2
Weight lbs.
(with cord)
The table to the right shows the Approval mark
BITUMAT B2 specifications.
Protection class I
140.436—3 in. nozzle
Order number
138.386—4 in. nozzle
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7. Product
Details
Device Overview
1. Power supply cord 18. Power cord holder
2. Housing 19. Guide roller
3. Main power switch 20. Adjusting screw—Guide roller
4. Drive switch 21. Adjusting sleeve
5. Speed knob 22. Replacement drive roller
6. Temperature knob 23. Screw-on additional weight
7. Welding nozzle 24. Screw for welding nozzle adjustment
8. Hot-air blower (ELECTRON) 25. Scraper
9. Tool holder 26. Screw for scraper
10. Locking lever 27. Holder for replacement drive roller
11. Transport roller 28. Carry handle
12. Scale for tool adjustment 29. Screw for adjusting sleeve
13. Drive roller 30. Fastening screw for welding nozzle
14. Fastening screw 31. Stainless steel wire brush
15. Lower guide bar 32. Knob for air volume
16. Clamping lever—Upper guide bar 33. Upper guide bar
17. Clamping screw—Lower guide bar
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8. Section 2
Operating
Instructions
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9. Operating Instructions
This section offers an overview of the
BITUMAT B2ʼs controls and settings, and
instructions on how to properly set up and
operate the automatic welder.
Prior to starting, read through the
manufacturerʼs warnings and cautions listed
on page 60. If you have any questions or
need clarification, please contact IHSʼ
authorized Leister service center at
888-785-4485.
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10. Operating
Instructions
Controls
Welding Temperature—Red Dial—Controls the heat output on a 1-to-10 scale—all
temperatures are approximates. Settings 9 and 10 should only be used on material 180
mils or thicker.
Setting 0 1 2 3 4 5 6 7 8 9 10
°F Ambient 185 298 411 524 637 750 863 979 1,092 1,201
* Assumes air volume is set to maximum.
Welding Speed—Black Dial—Controls the speed of the machine on a 1-to-8 scale—all
speeds are approximates and based on attainable speeds while welding.
Setting 1 2 3 4 5 6 7 8
ft./min. 2.6 6.2 9.8 13.4 17 20.62 24.2 27.8
* The BITUMAT B2 is capable of reaching speeds of 39 ft./min., but tops out between 27 and 30 ft./min. during the welding process. In ideal welding
conditions, speed should be set to approximately 17 ft./min. to ensure adequate heat is applied to the seam.
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11. Operating
Instructions
Drive Switch—Black Switch—Activates the drive motor, which
moves the machine forward.
Power Switch—Orange Dial with Yellow Base—Turns the machine
on and off.
Air Volume—Black Dial on the Back of the Hot-Air Blower—
Controls the amount of air blowing through the heat gun. Air volume
setting ranges between 100% (maximum) and 75% (minimum).
NOTE: If the temperature is higher than setting 8, air volume must be
set to maximum, otherwise you run the risk of overheating the machine.
Pressure—Drive roller, silver weight and replacement drive roller
located at the front of the machine—Applies joining force to the
heated bitumen seam.
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12. Operating
Instructions
Power Needs
Generator (minimum requirements)
For the BITUMAT B2 to function properly, it • 6,700 watts, continuous power
needs to have a consistent, adequate power • 230 volts
source. Following are power requirements for • 30 amps
generators, wall outlets and extension cords. • Single phase
Wall Outlet (minimum requirements)
• 6700 watts
• 230 volts
• 30 amps
• Single phase
Extension Cord
• 10-3 gauge wire or lower
• 100-foot cord length (maximum)
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13. Operating
Instructions
How to Prepare the Surface and Machine
1. Clean the overlapped bitumen sheets of debris and
contaminants, like moisture, grease and oil.
NOTE: When welding granular-to-granular sheets with the
BITUMAT B2, you do not need to degranulate.
2. Set the guide bar to a comfortable position.
• Lower Guide Bar Clamping Screw—Adjusts Guide Bar
Angle—Loosen the clamping screw and tilt the guide bar
back to the desired position, and then retighten.
• Upper Guide Bar Clamping Lever—Lengthens or Shortens Clamping
Clamping
Lever
Guide Bar—Release the clamping lever and move the guide Screw
bar up or down to the desired height.
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14. Operating
Instructions
3. With an aerosol can of silicone, spray any part of the
machine that may be exposed to splattering bitumen,
including:
• Hot-air blower
• Nozzle tube (not the flat nozzle end)
• Undercarriage
• Drive roller
• Air dam and guide wheels
• Hot-air blower slide bar
This silicone will serve as a buffer between the melted bitumen
and the machineʼs surfaces, making it easier to clean. Make
sure to complete step before turning the machine on, as
the aerosol spray is flammable.
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15. Operating
Instructions
4. Plug the power cord into the power source outlet.
5. Snap the cord clip onto the cord holder to ensure the cord doesnʼt get entangled in
the machine.
6. Turn the machine on with the power switch.
7. Using the temperature, speed and air volume dials, configure the BITUMAT B2
according to the jobʼs requirements (see pg. 10 and 11 for settings).
Power Main Control
Cord Clip Switch Settings
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16. Operating
Instructions
NOTE: The BITUMAT B2 will take approximately 3-4
minutes to reach the proper welding temperature.
8. After the welder has warmed up, run a test weld (see
pg. 17 for details) on scrap material to make sure the
temperature, speed and air-volume settings are
properly configured for the job.
9. If the test weld does not meet your standards, make
any necessary adjustments to the machineʼs settings
before moving on.
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17. Operating
Instructions
How to Test Weld Quality
BITUMAT B2 heat output can be affected by an improper
balance of temperature, speed, air volume and pressure, as well
as external factors, such as moisture, humidity, ambient
temperature and direct sunlight.
For this reason, before every use, always run a test weld on
scrap material to make sure you have the proper settings. To
perform a test weld:
1. Cut two, 10-foot strips of bitumen sheeting.
2. With the configured and warmed-up BITUMAT B2, weld the
two strips together.
(conʼt on next page)
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18. Operating
Instructions
A good weld should produce a bead of bitumen along the edge of the seam.
3. Using a hook-blade, cut three-to-five 2-inch strips perpendicular to the seam. Strips should
be cut from the beginning, middle and end of the test weld to ensure quality throughout.
4. As soon as the bitumen surface over the seam weld is the same temperature as the rest of
the material surface, tear the strips apart.
A quality weld should reveal the scrim, or netting, of the bitumen material.
Hook Blade
Bitumen Bead Test Strips
Bitumen Scrim
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19. Operating
Instructions
(Instructions continued from pg. 16)
10. When satisfied with the test weld, position your
properly configured BITUMAT B2 on top of the
bitumen seam.
Guide Roller
• Swing the guide roller down and align it with the
seam edge.
• Align the drive roller with the seam edge, but
place it approximately 3/8-inch off the edge. This
will help to keep the roller clean.
3/8 in. Gap
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20. Operating
Instructions
11. Stand in the welding position—behind
the BITUMAT B2 with the guide bar Not Engaged
directly in front of you.
12. Engage the lifting device (see pg. 27 for
details) by pushing the handle away Push Handle
from you. This will pick the drive roller Away
up off the bitumen sheet. Engaged
13. Turn on the drive switch to start the drive roller. The machine
will not begin moving as long as the lifting wheel is engaged.
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21. Operating
Instructions
14. Pull up on the locking lever, lower the hot-air blower, and slide the nozzle between
the overlapped bitumen.
Lowered Blower
Nozzle
Locking Lever
15. Count to three and then pull back on the lifting wheel Pull Back
lever. The machine will begin moving right away, so make
sure to have a firm grip on the guide bar.
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22. Operating
Instructions
16. Guide the BITUMAT B2 along the seam edge using
the guide bar.
NOTES:
• Do not push or pull the machine. Simply steer it so
the guide roller tracks the seam edge.
• Remember to keep the drive roller approximately 3/8-
inch off the seam edge to avoid melted bitumen
sticking to it.
• Keep the nozzle completely between the overlapped
bitumen. If the nozzleʼs air holes are exposed they
will spray melted bitumen on the machine, material
surface, and potentially your clothes and skin.
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23. Operating
Instructions
17. At the end of the weld, immediately pull up on the locking lever, slide the hot-air
blower away from the machine, and then swivel it up into locked position.
Pull Locking Slide Hot-Air
Lever Blower Out
Swivel Up
Turn Off Drive Roller
18. Press in the drive switch to stop the drive roller.
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24. Operating
Instructions
How to Shut Down the BITUMAT B2
When your job is complete, follow these simple instructions to turn off the machine.
1. Turn the temperature dial to 0 and turn the air volume dial to maximum. The airflow
will gradually cool down the heating element, which will help to keep it in peak
working condition.
Turn Clockwise
Turn to 0 to Maximum
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25. Operating
Instructions
How to Shut Down the BITUMAT B2
2. While the heating element is cooling, but the nozzle is still hot, use a stainless steel
wire brush and scrape off any melted-on bitumen (see instructions on pg. 37). Be sure
to wear gloves and goggles.
NOTE: This is an important step because a buildup of
bitumen on the nozzle can restrict airflow (see image at
right), which will impact the machineʼs performance and
cause it to overheat.
3. Wipe any splattered bitumen off the BITUMAT B2 with a
rag and silicone spray.
4. Once clean, re-silicone all moving parts to keep them
lubricated. Clogged Nozzle
The key to maximizing the life of your welder is to keep it as clean as possible.
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26. Operating
Instructions
How to Shut Down the BITUMAT B2
5. Once the machine is blowing cool air (approximately 3-5 minutes), it
is safe to power it off using the main power switch.
6. Unplug the machine from the power source.
7. Move the BITUMAT B2 safely into its storage case.
Turn Power Off
Store Machine
In Case
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27. Operating
Instructions
About the Lifting Device
The BITUMAT B2 Lifting Device raises the drive roller off
the bitumen material. This important feature serves two
purposes:
• Allows the drive roller time to get up to speed once Lifting Device
started, instead of it gradually speeding up during a weld.
• Removes the machine weight from the seam edge, so
you can easily slide the nozzle between the material.
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28. Section 3
Resources
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29. Resources
This section provides maintenance tips and how-tos that will
help you keep your BITUMAT B2 in proper working order, and
prolong the life of the machine.
• How To: Change a heating element (pg. 30)
• How To: Change a nozzle (pg. 32)
• How To: Change the drive roller (pg. 34)
• How To: Clean a nozzle (pg. 37)
• How To: Clean a drive roller (pg. 38)
• How To: Install a lifting device (pg. 39)
• Troubleshoot: Poor weld quality (pg. 41)
WARNING: Do not perform any maintenance on the BITUMAT B2 while it is plugged in,
unless otherwise noted.
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30. Resources:
How To
Loosen Cheese-
Change a Heating Element Head Screws
Over time and with frequent use, the BITUMAT B2ʼs heating
element will wear down and possibly break. When this occurs, it
needs to be replaced.
Following are simple steps to replace your BITUMAT B2 heating
element. (See pg. 53 for the heating element order number.) Pull Off
Nozzle
NOTE: Allow the BITUMAT B2 nozzle to cool before starting this
process.
1. Remove the four cheese-head screws that hold the nozzle to
the hot-air blower.
2. Pull the nozzle away from the handle.
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31. Resources:
How To
3. Slide the mica tube off the element. Slide Mica
4. Unscrew the grounding ring from the handle and slide it off the Tube Off
heating element.
5. Wiggle the heating element back and forth until it comes off.
6. Attach the new element by aligning the three pins with the three
sockets of the handle base. The element only attaches one way.
7. Reassemble the hot-air blower.
Unscrew Remove
Grounding Ring Element
Align Reassemble the
Element Pins Hot-Air Blower
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32. Resources:
How To
Loosen Cheese-
Head Screws
Change a Nozzle
Remove
Nozzles can get clogged with bitumen, dent or break, Nozzle
rendering them ineffective or useless. Following are
instructions on how to remove a nozzle and attach a
new one.
To remove a nozzle:
1. Unscrew the four cheese-head screws that
connect the handle to the nozzle.
2. Slide the nozzle over the mica tube and off the
hot-air blower.
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33. Resources:
How To
To attach a new nozzle:
1. Align the nozzle so that the flat base that slides between the bitumen sheets lays flat
against the ground when the hot-air blower is lowered.
2. Slide the new nozzle over the mica tube and align the holes with the screw holes on
the handle.
3. Insert and tighten the four cheese-head screws.
Slide Nozzle Tighten Cheese-
Lay Nozzle Flat
Over Mica Tube Head Screws
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34. Resources:
How To
Change the Drive Roller Unscrew Weight
As the BITUMAT B2 welds a bitumen seam, there is a good chance
that the drive roller will be exposed to melted bitumen (For cleaning
instructions see pg. 38). If this builds up, it can cause the wheel to
lay unevenly against the material surface leading to a poor weld.
The BITUMAT B2 comes with a spare drive roller, which is Remove Extra
stored under the circular weight at the front of the machine Drive Roller
(opposite the guide bar). To attach this new drive roller, follow these
instructions:
1. Unscrew the weight from the front of the machine.
2. Pull the new guide roller out of its holder. Lay Machine Flat
3. Place the welder on its side so that the hot-air blower faces up.
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35. Resources:
How To
4. Unscrew the brass fastening screw by turning counter-
clockwise, and remove.
5. Pull the air dam off the deflector roller.
6. Pull the drive roller up and off the machine, and then pull the air
dam off the roller.
7. Lay the air dam into the groove of the new drive roller.
Unscrew Brass
8. Align the new drive roller with the post on the machine, and slide Fastening Screw
it into position.
Lay Air Dam in Slide Drive Roller
Groove Into Position
Remove Drive
Pull Off Air Dam Roller
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36. Resources:
How To
9. Pull the air dam back over the deflector roller and make sure it lies completely in
the groove.
10. Insert the brass fastening screw through the middle of the drive roller and tighten
until snug.
11. Make sure the air dam aligns with the two guide rollers, and then flip the
machine back into the proper position.
Pull Air Dam Onto Insert Fastening
Deflector Roller Screw
Align Air Dam with
Guide Wheels
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37. Resources:
How To
Clean a Nozzle
It is important to clean the BITUMAT B2 nozzle after every
use to avoid bitumen buildup that restricts airflow. Buildup can
cause the machine to overheat, damaging the heating element.
To clean the nozzle, use a stainless steel or brass wire brush,
and in a motion away from your body scrape the excess bitumen Safety
off. Recommendations:
Make sure the nozzle is still hot while you do this because the • Hold the hot-air blowerʼs green
handle with your free hand to
bitumen will be more difficult to scrape away if it has had time to secure it in place while scraping.
cool and solidify. • Wear protective gloves and
safety glasses.
Continue until you can see that all the air holes are clear of • Make sure the blower is turned
off so that loose bitumen pieces
blockages. At least once a week, hold up the nozzle to a light
are not blown into the air.
source and check that light is showing through all air holes.
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40
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38. Resources:
How To
Remove Fastening
Clean a Drive Roller Screw
Built-up bitumen can cause the drive roller to lay unevenly against the
material surface, leading to a poor weld. For this reason, itʼs important
to clean your drive roller after each use. To do so:
1. Unscrew the brass fastening screw and pull it away from the drive
roller. Wipe Off Bitumen
2. Pull the drive roller off the machine.
Reinstall
3. Spray silicone onto the drive roller and a clean rag. Fastening Screw
4. Wipe away the bitumen using the rag.
5. Once clean, coat the drive roller with a layer of silicone to help keep
it clean.
6. Reinstall the drive roller and secure it in place with the fastening
screw.
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39. Resources:
How To
Install a Lifting Device
The lifting device—equipped on all BITUMAT B2ʼs sold in the US—is attached to the
drive wheel scraper. With frequent use, there may be times where you need to take off
the device for cleaning. To do so, follow these instructions:
1. Unscrew and remove the weight and extra drive roller from the front of the machine.
2. Unscrew and remove the lifting device bracket from the side of the machine.
3. Flip the machine on its side with the hot-air blower facing up.
4. Remove the two fastening screws securing the scraper to the bottom of the machine.
Unscrew Lifting
Device Bracket
Flip Machine On Loosen Fastening
Unscrew Weight Its Side Screw
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40. Resources:
How To
To reinstall the lifting device, follow the steps on the previous page
in reverse order.
When going through the reinstallation process, keep the following
tips in mind:
• Put the BITUMAT B2 on top of a secure, flat surface, and let
the front end overhang the edge slightly. This offers greater
access to hard-to-reach areas. Insufficient Space
• As you tighten the fastening screws of the scraper, pull the
scraper toward you. If the scraper is too far back when it is
secured, it will rub against the drive roller, causing undue
stress on the motor.
NOTE: The space between the drive roller and scraper should be
the thickness of a dime.
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41. Resources:
Troubleshooting
Poor Weld Quality
There are a number of variables that can impact a BITUMAT B2ʼs welding performance.
Below are three things you can check while on a roof. If none of these resolve the welding
issue, contact IHSʼ authorized service center.
To resolve poor welding quality:
1. Check that the temperature, speed and air-volume settings are properly configured. If any
of these are off for the material or the environment, your seam quality will suffer.
Note: The amount of air blowing through the heating element will have an inverse affect on
heat output, limiting how hot the BITUMAT B2 can get.
2. Make sure the welding nozzle is free of melted bitumen and debris, which can restrict
airflow. If you discover any blockages, scrape them away with a stainless steel or brass
wire brush (see pg. 37 for details).
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42. Resources:
Troubleshooting
3. Make sure the machine is receiving the proper power supply (see pg. 12 for details) by
checking (in order) the power source, extension cord, and then machine power cord.
• First, check that the power source is producing enough power. Use an AC
voltage tester with prong probes, and make sure to wear insulated gloves. If the
power doesnʼt meet the machine requirements, below are some tips to resolve the
issue. (Click here for a complete blog post on the topic.)
Generator Wall Outlets
Contact your distributor •Invest in a generator to ensure you have a consistent power
or the manufacturer to source from job site to job site.
troubleshoot the issue •Purchase a buck-boost transformer, which can help to
and determine the maintain consistent power output.
appropriate fix. •Contact a certified electrician to examine the electrical system.
He or she may be able to safely boost power output.
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43. Resources:
Troubleshooting
• If the power source checks out, next test the
extension cord. Use the voltage tester to test the
cord outlet that the machine plugs into. If there is a
problem detected, youʼll need to purchase a new
cord.
• Lastly, check that the BITUMAT B2ʼs power cord
is not frayed, cut or sliced. If it is, it will need to
be replaced by an authorized Leister technician.
After youʼve ruled out all these variables, if your machine is still welding poorly youʼll need
to send it to an authorized Leister service center for support.
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44. Section 4
Parts List
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45. Parts List
Visit:
IHShotair.com/B2-Parts-1 to
view the full-sized diagram
of the BITUMAT B2 with part
numbers.
See page 50 for a parts
diagram of the
standard ELECTRON hot
air blower, which is the
heat source for the
BITUMAT B2.
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Parts List
Pos Order No. Qty Part Name Pos Order No. Qty Part Name
1 107.073 1 Undercarriage (complete) 20 125.739 1 Base weight
2 104.266 2 Rollpin spring ø 4 x 20 mm 20 100.871 2 Cheese head screw M8 x 20 mm
3 100.142 2 Thread forming fillister head screw M5 x 12 mm 20 125.793 1 Pressure roller retainer
4 100.124 2 Spring ring M5 5.35/9.2/1.2 mm 20 138.877 1 Centering nut
5 100.173 2 Torsional protection disk 24 138.136 1 Threaded rod
6 104.268 1 Internal retaining ring ø 52 mm 25 113.898 1 Hexagon nut M12/0.5d mm
7 108.115 1 Driving axle 26 138.135 1 Weight
8 106.811 1 Parallel key 6 x 6 x 22 mm 27 114.113 1 Roller chain 8 x 1/8 in. x 408 mm (39 ft. 5 in./min.)
9 107.085 1 Chain adjuster 27 110.553 1 Chain joint 8 x 3 mm
10 102.241 1 Washer M4 4.3/12/1 mm 28 106.731 2 Cheese head screw M6 x 16 mm
11 107.733 1 Spring washer M4 4.3/8/0.5 mm 29 100.951 2 Washer M6 6.4/12/1.6 mm
12 106.732 2 Cheese head screw M4 x 20 mm 30 137.918 1 Wiper
13 101.008 1 Spring ring M4 4.25/7.6/0.9 mm 31 107.714 1 Hinge (complete)
14 116.003 1 Set screw M6 x 8 mm 32 104.234 1 Hexagon set screw M4 x 10 mm
15 127.575 1 Spacer shaft 33 100.945 2 Slotted pan head screw M6 x 16 mm
16 137.895 2 Pressure roller 100 mm with shoulder 34 137.899 1 Guide shaft (complete)
16 137.896 2 Pressure roller 75 mm with shoulder 35 121.619 1 Shoulder bolt M5 x 8 mm
16 140.229 2 Pressure roller 100 mm without shoulder 36 114.500 1 Pillow block
16 140.228 2 Pressure roller 75 mm without shoulder 37 100.356 1 External retaining ring ø 14 mm
17 138.148 1 Fastening screw, brass 38 102.408 2 Countersunk screw M6 x 20 mm
18 101.113 2 Cheese head screw M6 x 20 mm 39 107.053 2 Retaining disk
19 100.299 13 Fillister head screw M4 x 10 mm 40 107.052 1 Bearing bush
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Parts List
Pos Order No. Qty Part Name Pos Order No. Qty Part Name
41 107.092 1 Axle suspension 60 100.374 1 Locking nut M5, hexagon
42 107.953 1 Spiral pin ø 5 x 30 mm 61 126.895 1 Roller
43 137.894 1 Transportation axle 62 115.198 1 Fitted shoulder screw M6 x 8 mm, with socket head
44 100.341 2 External retaining ring ø 15 mm 63 137.696 1 Guiding bar bottom
45 107.074 1 Rocker (complete) 64 101.113 2 Cheese head screw M6 x 20 mm
46 125.621 1 Flange sleeve 65 140.933 1 Clamping lever M8 x 25 mm
47 107.069 1 Deflection roller (complete) 66 100.424 1 Cheese head screw M5 x 16 mm
48 107.042 1 Collar screw 67 126.597 1 Cable fixation clip Ø 12.5 mm
49 104.224 1 Round belt 68 130.275 1 Snap hook
50 140.125 1 Electron BITUMAT B2 69 137.843 1 Guiding bar upper part (complete)
51 100.909 1 Retaining ring 120 x 8 mm 70 138.817 1 Hand brush, stainless
52 100.442 4 Cheese head screw M4 x 16 mm 71 100.977 1 Set screw M6 x 12 mm
53 102.047 1 Gasket ø 60/83 x 2 mm 72 108.221 1 Pressure spring ø 1.25 x ø 6.3 x 25 mm
54 126.239 1 Grounding ring 140.489 1 Carrier box BITUMAT B2, 750 x 555 x 450 mm, green
55 126.386 1 Heating element type 38C2, 230V / 6500W 200 108.120 2 Pinch roller
55 126.594 1 Heating element type 38C2, 400V / 6500W 201 107.071 2 Pinch roll (complete)
56 102.046 1 Mica tube ø 56.5 x 155 mm 202 107.093 2 Rubber ring ø 74/92 x 40 mm
57 138.047 1 BITUMAT B2 Nozzle 100 mm 300 138.328 1 Guide roller (complete)
57 138.048 1 BITUMAT B2 Nozzle 75 mm 301 104.263 1 Springy thrust piece M8 x 16 mm
58 103.361 1 External retaining ring ø 8 mm 302 100.299 2 Fillister head screw M4 x 10 mm
59 138.152 1 Air scoop 100 mm (complete) 303 140.219 1 Mounting plate guide roller
59 138.150 1 Air scoop 75 mm (complete) 304 100.351 1 Shim ring 8/14/0.5 mm
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48. Call for a Quote
888-785-4485
Parts List
Pos Order No. Qty Part Name Pos Order No. Qty Part Name
305 126.945 1 Rocker (complete) 508 104.262 2 Circlip for shaft ø 8 mm
306 107.730 1 Hexagon nut M10/0.8d 600 125.985 1 Drive unit 39 ft. 5 in./min.
307 107.079 1 Axle 601 101.060 1 External retaining ring ø 12 mm
308 107.703 1 Guide roller (complete) 602 127.419 1 Chain wheel 39 ft. 5 in./min. 11 mm wide
309 100.976 1 Hexalobular socket pan head screw M5 x 12 mm 603 135.440 1 Planetary gear set (complete), 195:1
310 103.519 1 Cheese head screw M8 x 30 mm 604 107.061 1 Gear support
311 124.298 1 Countersunk screw M4 x 10 mm 605 114.109 1 Motor support 39 ft. 5 in./min.
400 115.427 1 Tool holder (complete) 606 100.142 4 Thread forming fillister head screw M5 x 12 mm
401 100.906 1 Tool holder 607 114.112 1 Toothed belt 5/16 in., 39 ft. 5 in./min.
402 115.426 2 Flange sleeve ø 20/28/35 x 20 mm 608 100.429 2 Carbon brush 5 x 6 x 14 mm with lead (230/200V)
403 100.362 1 Rollpin spring ø 3 x 20 mm 609 128.907 1 Motor DCS 52/33, 230V, 12 m
404 100.361 1 Pressure spring 610 112.503 1 Cheese head screw M4 x 40 mm
405 100.359 1 Trigger 611 103.782 2 Cheese head screw M4 x 60 mm
406 100.360 1 Lock pin 612 126.017 1 Temperature resistant wire AWG20 x 145 mm
500 140.232 2 Holding-down roller (complete) 613 126.018 1 Temperature resistant wire AWG20 x 180mm
501 100.299 2 Fillister head screw M4 x 10 mm 700 141.671 1 Lift up device for BITUMAT B2
502 138.468 2 Safety cover (complete) 700 140.476 1 Lift up device for BITUMAT B2 (complete)
503 107.056 2 U-profile 701 141.465 1 Lift up device holder
504 107.077 2 Holding-down roller 702 141.463 1 Lift up device wiper
505 104.267 2 Rollpin spring ø 8 x 20 mm 703 100.299 2 Fillister head screw M4 x 10 mm
506 127.778 2 Compressing spring 704 101.008 2 Spring ring M4 4.25/7.6/0.9 mm
507 107.055 2 Guide pillar 705 141.470 1 Lift up device lever
48 888-785-4485

49. Call for a Quote
888-785-4485
Parts List
Pos Order No. Qty Part Name
706 101.060 1 External retaining ring ø 12 mm
707 101.154 2 External retaining ring ø 10 mm
708 114.316 2 Washer M10 10.5/20/2 mm
709 141.438 1 Lift up device role
710 128.743 1 Handle
711 141.485 1 Stop angle (complete)
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50. Parts List
Standard on each
BITUMAT B2 is an
ELECTRON hot air
blower—the machineʼs
main heat source.
Visit:
IHShotair.com/B2-Parts-2
to see a full-sized parts
diagram of the
ELECTRON.
50 888-785-4485

51. Call for a Quote
888-785-4485
Parts List
Pos Order No. Qty Part Name Pos Order No. Qty Part Name
301 100.299 6 Fillister head screw M4 x 10 mm 323 125.458 1 Mounting ring for nozzle
302 100.032 1 Company label 75 x 22 mm 324 100.528 1 Warning label "Hot surface"
303 140.134 1 ELECTRON enclosure 325 127.548 1 Temperature resistant wire 1.5 mm2 x 1100 mm, yellow
304 101.237 1 O-ring ø 75.92 x ø 1.78 mm 326 126.383 1 Temperature resistant wire 1.5 mm2 X 1100 mm, white
305 101.252 1 Rubber ring without cams 327 126.382 1 Temperature resistant wire 1.5 mm2 x 1100 mm, black
306 140.126 1 Fixing clip 328 115.831 2 Temperature resistant wire AWG20 x 1 m, white
307 113.578 1 Hexagon counternut M16 x 1.5 mm 329 126.384 1 Temperature resistant wire AWG20 x 1100 mm. red
308 113.577 1 Cable screw fitting M16 x 1.5, NW 12, straight, black 330 126.385 1 Temperature resistant wire AWG20 x 1100 mm, blue
309 107.753 1 Cable sleeve NW 12, black, 450 mm 331 117.823 2 Silicon tube ø 8 x 0.5 x 100 mm
310 100.186 2 Thread forming fillister head screw M4 x 8 mm 332 100.151 1 Cord fastener 85 x 22 mm
311 113.712 1 Motor 54/25 KS, 230V 333 107.687 4 End sleeve, 0.5 mm2, white
312 113.720 2 Brushholder for KL/KS-Motor 334 110.808 2 End sleeve, 1.5 mm2, red
313 114.785 2 Carbon brush 5 x 6 x 16 mm for KL/KS-Motor (230/200V) 335 107.686 1 End sleeve, 2.5 mm2, blue
314 101.251 1 Steel hub 336 127.455 1 Threaded hose coupling, angled, M20 x 1.5 mm
315 104.064 1 Turbine housing lower part (complete) 337 113.569 1 Hexagon counternut M20 x 1.5 mm
316 100.284 3 Thread forming fillister head countersunk screw M4 x 14 mm 338 102.215 1 Electronic circuit board DS 85, 240/230/200V
317 107.591 1 Turbine 339 102.233 1 Potentiometer 100 kOhm
318 107.762 1 Distributor (complete) 340 100.450 1 Potentiometer knob black
319 107.592 1 Turbine 341 140.178 1 Insulating paper
320 100.287 1 Hexagon nut M5/0.5d mm 342 140.275 1 Adhesive company label
321 126.258 1 Turbine housing upper part 3 sockets, photo IC 343 107.175 4 Shrink sleeve 1/8 in. x 14 mm, black
322 101.269 4 Fillister head countersunk screw M3.5 x 8 mm 344 125.757 1 Photo IC
51 888-785-4485

52. Section 5
Accessories
52 888-785-4485

53. Call for a Quote
888-785-4485
Accessories
Each of the following BITUMAT B2 accessories can be purchased separately.
(All items featured below are included with the purchase of a BITUMAT B2, except for the pressure roller.)
Bitumen-Nozzle Wooden Storage Case Heating Element Drive Roller
Order No: 138.048—75 mm Robust case 28.35 x 18.5 x 230V; 6700W Order No: 137.895—80 mm
Order No: 138.047—100 mm 17.7 inches Order No: 126.386 Order No: 137.896—100 mm
Order No: 140.489
Lifting Device Stainless Steel Wire Brush Pressure Roller (not included)
Order No: 140.476—75 mm Order No: 138.817 One-arm, silicon pressure roller
with ball bearings
Order No: 140.160—40 mm
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54. Section 6
Related
Products
54 888-785-4485

55. Call for a Quote
888-785-4485
Related Products
Leister offers a variety of other welding machines designed for specific roofing
applications. To learn more about any of the following products, please contact IHS at
888-785-4485 or info@ihshotair.com.
The Leister VARIMAT V2 offers the fastest welding speeds of
polymer roofing membranes on the market—up to 39 feet per
minute—and its slim design allows for welding in gaps as
narrow as 4.33 inches. While designed for flat commercial and
industrial roofs, the VARIMAT V2ʼs motor is strong enough to
weld at inclines up to 30 degrees.
The UNIROOF E is a compact roofing membrane welder for PVC,
TPO, ECB, EPDM and CSPE. Its small design makes it ideal for
edge work and hard-to-reach areas.
55 888-785-4485

56. Call for a Quote
888-785-4485
Related
Products
The TRIAC DRIVE is a semi-automatic welding machine designed for
use in conjunction with the TRIAC S or TRIAC PID hot-air hand tools.
It can produce high-quality welding on thermoplastics, and is ideal for
use on high-pitched roofs, parapet walls, vertical walls and special
flashing details.
Contact IHS to learn more about any of these Leister
products—888-785-4485 or info@ihshotair.com.
56 888-785-4485

57. Section 6
Service &
Support
57 888-785-4485

58. World-Class Leister Authorized
Service & Support
IHS is an authorized master distributor and certified Leister
service and repair center. We offer a state-of-the-art facility Service Center
and the experienced technicians needed to quickly 888-785-4485
troubleshoot, diagnose and repair your Leister equipment to info@ihshotair.com
like-new condition. www.IHShotair.com
As part of our world-class service, we offer:
• Live Video Chat—Connect with us from the job site. We can set up live video chats
with you and your tools and remotely see what you see, quickly troubleshoot issues,
and then recommend quick fixes or next steps.
• Arranged Pick Up and Delivery—IHS will arrange for your BITUMAT B2 to be picked
up and dropped off after it has been serviced, saving you money in costly shipping
fees.
58 888-785-4485

59. World-Class Leister
Service & Support
• Expertise—Certified technicians employed full time for immediate troubleshooting
support.
• Equipment—State-of-the-art instrumentation and tools to run diagnostic tests, make
repairs and recalibrate settings.
• Preventative Maintenance—With each repair, we also perform any necessary
preventative maintenance to prolong the life of your tool and help avoid future
breakdowns.
• Inventory—We stock of tools and parts onsite to streamline order shipment and repairs.
• Rentals—Rent a replacement tool while IHS repairs your broken one and avoid costly
downtime.
If you have questions about your BITUMAT B2, or are in need of
service and support, please contact us.
59 888-785-4485

60. Warnings and Cautions
WARNINGS CAUTIONS
• Rated voltage stated on the device must correspond
• It is dangerous to open the BITUMAT B2 casing while
to the power voltage—N 61000-3-11; Zmax = 0.105 Ω
the machine is plugged in because electrified
+ j 0.066 Ω. If necessary, consult an electrician.
components and connections are exposed. Unplug the
machine before opening it. • In case of a power failure, unplug the machine and set
the main power switch to 0.
• Incorrect use of the hot-air welder can cause a fire, and
is an explosion hazard around combustable materials • For personal protection, we strongly recommend the
BITUMAT B2 be connected to an RCCB (Residual
and gasses.
Current Circuit Breaker) before operation.
• Do not touch a hot welding nozzle, as they can cause
burns. Allow it to cool first. • The tool must be operated under supervision. Hot air
can ignite flammable material that is not in view.
• Do not point the hot airflow in the direction of people or
animals. • The machine should only be used by qualified
specialists or under their supervision. Children are not
• Connect the tool to a power source with a grounding
authorized to use this device.
conductor. Any faults of the grounded conductor inside
or outside the tools are dangerous. • Protect the device from exposure to damp or wet
areas.
• Only use extension cords that are grounded.
• When lifting the BITUMAT B2 by hand, use the
carrying handle and top of the guide bar.
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61. About IHS
Industrial Heat Sources (IHS) is one of four certified U.S.
master distributors of Leister roofing products, meaning
you can trust us to deliver quality, direct-the-from-
manufacturer hot-air equipment at the best possible
prices.
We work with customers across a variety of industries,
including: roofing, process heat, industrial
fabrics, flooring, civil engineering and plastic fabrication.
In addition, we offer unmatched service and support at
our state-of-the-art facility, as well as through our service
center network across the Midwest and Northeast
regions, giving you quick access to trained Leister
technicians.
61 888-785-4485

62. Connect with Us
For more resources on the BITUMAT B2 and other Leister tools, and tips for roofing and
industrial-heat applications, visit our blog at IHShotair.com/hot-air-tools-blog, or connect
with us on:
@IHShotair
YouTube.com/user/IHShotair
Facebook.com/IHShotair
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63. Disclaimer
Information is intended as a guide only and should be used by individuals familiar with the
Leister BITUMAT B2ʼs features, functionality and parts. IHS is not responsible for injury or
equipment damage that may result from operator negligence.
Prior to setting up, operating or performing maintenance on your Leister BITUMAT B2, be
sure to read through all safety warnings and cautions contained within the product
operating manual. If you have any questions, need assistance or would like a product
demo, contact the IHS service center at 888-785-4485.
63 888-785-4485