8. ARMY OIL ANALYSIS PROGRAM (AOAP).
Refer to DA Pam 738-750 for sampling requirements.
b. After expiration of warranty, active Army units will send an oil sample to an AOAP laboratory for
analysis every 50 hours of operation or 90 days, which ever occurs first. Reserve and National Guard
activities will send an oil sample to an AOAP Laboratory for analysis every 50 hours or 180 days,
which ever occurs first. Hydraulic oil will be sampled once a year.
Intervals for sampling as well as draining and refilling lubricants may be changed by an AOAP
If AOAP laboratory support is not available, drain and refill crankcase oil and change oil filter every
250 hours of operation. Drain and refill transmission oil every 500 hours and oil filter every 250 hours
of operation. Drain and refill hydraulic oil tank every 1000 hours of operation. Change hydraulic oil
filter every 250 hours of operation. Drain and refill drive axle every 500 hours of operation.
9 . HYDRAULIC SYSTEM.
Hydraulic Oil Check. Check oil level with forklift parked on level ground. Mast must be fully lowered
with forks on the floor and sideshift assembly fully shifted to the left. Also, mast pivot must be fully
retracted. Oil level is low when touching the bottom of tank strainer.
Hydraulic System Oil. If hydraulic system oil becomes contaminated, immediately change oil and
Hydraulic Tank. Refer to TM 10-3930-669-20, remove plug and drain hydraulic tank.
Hydraulic Tank Strainer. Refer to TM 10-3930-669-20, remove hydraulic cap and strainer.
10. BRAKE SYSTEM.
Remove plug from master cylinder and check fluid level. Level is at the end of the threaded port. Add
brake fluid to level and install plug.
Remove both plugs when changing brake fluid. Fluid must be drained with a pump. Refer to
TM 10-3930-669-20 to bleed brake system.
Silicone brake fluid (BFS) must be used at all times.
d. Change brake fluid only if contaminated.
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