2. SOURCE OF OIL
⢠Synthetic :
â Fatty acid and esters (alcohol and asid)
â Purple color
⢠Vegetable :
â From castor oil, olive oil
â Yellow color
⢠Mineral :
â From crude oil
â Red color
3. LUBRICATION
⢠Function :
â Reduce friction
â Reduce temperature
â Clean the system
⢠Film Lubrication :
â Oil is lubricate between 2 contact surface
⢠Boundry Lubrication :
â Loss of oil between 2 contact surface
4. OIL PROPERTY
⢠Ability to cling to the bearing surface (oiliness)
⢠Possesses stable viscosity (low)
⢠High heat capacity
⢠Not causing damage to contact material
⢠Not flamable
⢠Chemically stable
⢠Safe to handle
6. OIL CONTAMINATION
⢠Can be detect on the filter and magnetic plug
⢠Take example and analys
⢠Drain oil if contaminate
⢠Clean or replace filter
⢠Flush the system with clean lubricating oil
⢠Refill the system
7. FUEL SPECIFICATION
⢠Fuel should :
â Pumpable and flow easily
â Efficient combustion
â High caloric value
â Minimal harmful effect
â Minimal corrosive effect
â Provide edequate lubrication for moving part
â Reduce fire hazard to minimum
8. TYPE OF FUEL
⢠Kerosene fuel (AVTUR)
â For turbine engine
â Low temperature fuel
â Eg : Jet A and Jet A-1
⢠Petrol fuel (AVGAS)
â For piston engine
â Eg : Avgas100
10. FUEL CONTAMINATION
⢠Microbiological Contamination
â Effect inaccurate fuel tank content, blockage and
corrosion of alluminium alloy
â Prevent by fungicidal additive to fuel
⢠Water contamination
â Test by hydrokit (pink/red â presence of water)
â Water settles at bottom of tank due to density
11. SAFETY REFUELING/DEFUELING
⢠Avoid all unnecessary contact and use
protective equipment
⢠Never wear fuel soaked clothing
⢠Clean up spilled product immediately
⢠Avoid breathing fuel vapor (ventilation)
⢠Have fire fighting equipment
⢠Ensure both aircraft and bowser earthing
⢠No radio or radar equipment operated