Maintenance Inspection Schedule
42
•
Check APU mounting bolts and brackets for cracks. damage and poor
aligment.Verify tightness and torque to 100 ft/lbs (135.6 N•m) for the claw mount,
or 200 ft/lbs (271.2 N•m) for the direct frame mount.
Structural
(Continued)
Pre-Trip
500 Hrs
Annual
2,000 Hrs Check condition of or service the following:
Air Conditioning System
Pre-Trip
500 Hrs
Annual
2,000 Hrs Check condition of or service the following:
•
•
Check refrigerant level.
•
•
Check refrigerant lines for rubbing or damage.
•
•
Inspect, clean and (if necessary) replace evaporator air filter. It may be
necessary to check or replace it more often if conditions require.
•
•
Inspect evaporator drain valves (kazoos) to ensure that they are in place, in good
condition and are sealing.
•
Steam clean condenser and APU pre-cooler coil. Do not bend coil fins.
Maintenance Inspection Schedule
42
•
Check APU mounting bolts and brackets for cracks. damage and poor
aligment.Verify tightness and torque to 100 ft/lbs (135.6 N•m) for the claw mount,
or 200 ft/lbs (271.2 N•m) for the direct frame mount.
Structural
(Continued)
Pre-Trip
500 Hrs
Annual
2,000 Hrs Check condition of or service the following:
Air Conditioning System
Pre-Trip
500 Hrs
Annual
2,000 Hrs Check condition of or service the following:
•
•
Check refrigerant level.
•
•
Check refrigerant lines for rubbing or damage.
•
•
Inspect, clean and (if necessary) replace evaporator air filter. It may be
necessary to check or replace it more often if conditions require.
•
•
Inspect evaporator drain valves (kazoos) to ensure that they are in place, in good
condition and are sealing.
•
Steam clean condenser and APU pre-cooler coil. Do not bend coil fins.
