4-2
4.2
DESCRIPTION OF SERVICE REQUIREMENTS
SERVICE
Service A
D
Drain the engine oil, replace oil filter and by-pass filter (if so equipped).
D
Check engine cooling system.
D
Clean the cartridge of the dry air filter.
D
Check air cleaner and change air cleaner oil.
D
Check all bolts, screws and unit mouting bolts for tightness. Thighten as
required (1st service only).
D
Check all belts.
Service B
D
Replace fuel filter.
D
Check fuel pump filter.
D
Replace the cartridge of the dry air filter.
D
Check the battery terminals and fluid level.
D
Check compressor oil level.
D
Check alternator brushes. Check it for diesel hours
PLUS
standby hours.
D
Check engine thermostat for proper operation.
D
Check defrost :
-- Check timer setting and function.
-- Check refrigerant control valves for proper operation.
-- Fans stop.
-- Defrost ends automatically.
-- Water drains from evaporator.
D
Check and adjust rocker arms.
D
Replace belts as necessary.
Service C
D
Clean radiator and condenser.
D
Check refrigerant level.
D
Check engine speed under load
-- Supra 750Mt
_
:
2200 rpm / 1800 rpm
-- Supra 850Mt
_
:
2400 rpm / 1800 rpm
-- Supra 950Mt
_
:
2250 rpm / 1800 rpm
D
Change the fan motor brushes.
D
Check and rebuild the alternator.
D
Clean and adjust fuel injectors (140 kg/cm
2
)
Service D
D
Check all belt tension pulleys.
D
Change anti-freeze in diesel engine.
D
Check bearings in clutch(es) and electric motors.