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TM 10-3930-673-20-2
18-3. TANDEM GEAR PUMP TEST/REPLACEMENT (CONT)
CAUTION
Tandem gear pump must be purged of air before engine is started. Refer to Para 18-2 for purging
instructions. Failure to purge air as directed may result in severe damage to tandem gear pump.
(10)
Purge air from tandem gear pump (Para 18-2).
b. Removal.
WARNING
When working under boom, always use
blocks or other supports. Combined
weight of boom and attachment is
approximately 6300 lb (2857.63 kg).
Failure to adequately support boom could
result in severe injury or death to
personnel.
(1)
Tag, mark, and remove hydraulic hoses (1
through 4) from tee (5) and elbows (6
through 8).
(2)
Remove tandem gear pump (9) from
transmission (10).
Remove two screws (11), lockwashers (12),
tandem gear pump (9), preformed packing (13),
and couplings (14 and 15) from
transmission (10). Discard lockwashers and
preformed packing.
TR99878

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