GILLIG LOW FLOOR, Руководство по обслуживанию

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202
Air System
Condition Possible Cause Solution
Loose fitting Check fittings at compressor and engine for leaks
and verify fittings are properly torqued.
Cracked coolant port Replace compressor.
Porosity in cylinder head Replace compressor.
Leaking of gasket internal
to the cylinder head Replace compressor.
Compressor leaks
engine coolant
None of the above, but
condition persists Replace compressor.
Leaking of gasket internal
to the cylinder head
Cavitation or corrosion in
cylinder head Replace compressor.
Porosity in cylinder head
or cylinder head cracked Replace compressor.
Replace compressor.
Compressor
pressurizes coolant
system or coolant
leakage to
compressor inlet
None of above, but
condition persists
Unloader leakage Possible internal damage,
including worn or
damaged unloader piston
O-ring, porosity in
unloader piston bore, loose
leaking seal at unloader
piston bore Replace compressor.
Discharge line blocked due
to freezing or carbon
build-up
Check for trap (low spots) in lines.
Make necessary repairs.
Clear discharge line. Replace line if necessary.
Check for carbon build-up. If carbon build-up is
present, replace the discharge line.
Frozen or blocked line to
governor Clear blocked line. Replace line if necessary.
Check for air dryer malfunction. Repair or
replace as required. Refer to the air dryer
manufacturerís maintenance manual for service
information.
Governor malfunction Repair or replace the governor. Refer to governor
manufacturerís maintenance manual for service
information.
Improper cylinder head
bolt torque, machining
defect on cylinder head or
block, defective cylinder
head gasket Inspect gasket. Replace if necessary. Verify all
bolts are properly torqued. If problem persists,
replace cylinder head.
Compressor head
gasket failure
None of the above, but
condition persists
Replace compressor.