TM 9-4940-568-20
2-30
2-9. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
TABLES (CONT).
Table 2-1. Unit Level Preventive Maintenance Checks and Services (PMCS) (CONT).
Item
No.
Interval
Item to Be
Inspected
Procedure
Not Mission
Capable If:
VENT
REDUCER
ADAPTER
FILL TUBE
CHECK PLUG
28
Biennial
Crane Swing
Drive Gear
Box
To check and fill the swing drive gearbox,
perform the following procedures:
(1) Remove vent cap at top of filler tube.
(2) Remove check plug from gear box.
(3) Check that lubricant is visible at bottom of
hole of check plug.
(4) If required, fill gearbox with lubricant.
(5) Replace vent cap.
(6) Install check plug.
Check oil level in swing drive gearbox every
250 hours of operation or biennially,
whichever comes first. Fill with GO as
required. Refer to Table 2-2.
Any Class III leaks are
found.
29
Biennial
Air
Compressor
Install air compressor service kit. Refer to
Para 11-4.
