· Have assistant signal operator when
rod eye of cylinder is aligned with
boom pivot pin hole.
· If installing both cylinders at same time, note
that in Step (6) below one cylinder will
extend and other will remain stationary.
· Cylinder that extended must be aligned and
then first installed on boom.
· When first cylinder is installed on boom,
other cylinder can then be extended.
Using suitable lifting device, raise boom hoist
cylinder (4) until cylinder rod eye (6) is
aligned with pivot pin mounting hole on
Start engine and run at full throttle (TM 10-
Using suitable lifting device, reposition
cylinder (4). Extend cylinder rod until upper
pivot pin (2) can be installed.
Stop engine (TM 10-3930-673-10).
Apply anti-seize compound on upper pivot pin (2).
Install upper pivot pin (2) in boom (1) and boom hoist cylinder (4) with screw (8) and locknut (7).
Purge air from hydraulic system (TM 10-3930-673-10).
Start engine (TM 10-3930-673-10).
Cycle boom hoist functions to raise and lower boom five times.
Stop engine and relieve hydraulic pressure by operating boom hoist functions
Follow-on Maintenance: Install transmission cover (Para 16-5).
END OF TASK