REPLACE/REPAIR SPEED REDUCTION GEARBOX - Continued.
Lubricate o-ring (21) with petrolatum. Install o-
ring in mating groove of mechanical drive
Thread locking compound can cause
goggles/glasses when using. Avoid
contact with eyes. If compound contacts
eyes, flush eyes with water and get
immediate medical attention.
Apply thread locking compound
Appendix B) to threads of bolts (20).
Center installed bearing (42) on shouldered shaft
(27). Lightly and evenly tap around perimeter of
mechanical drive housing (18) with plastic
hammer until housing is close enough to install
Make sure o-ring (21) is still seated in mating
groove of mechanical drive housing (18).
Install and evenly tighten bolts
mechanical drive housing (18) is fully seated on
brake housing (23). Using hex head driver
socket (Item 89, Appendix D), evenly tighten
bolts to 8 Ib-ft (11 Nm).
Use care then installing retaining rings.
Retaining rings are under spring tension
and can act as projectiles when released
and could cause severe eye injury.
v. Using snap ring pliers, install retaining ring (17).
flammable and can be an irritant to the
skin, eyes, and respiratory system.
protection and rubber gloves should be
worn when working with hydraulic oil.
w. Use HSTRU to pressure test brake at 350 psig
(2413 kPa gauge) for leakage. Apply pressure
at hydraulic adapter port. If hydraulic oil leakage
is detected at either end of brake housing after 5
minutes, failed preformed packings must be
x. Disconnect brake from HSTRU and drain
hydraulic oil into drain pan. Dispose of drained
hydraulic oil in accordance with local procedures.
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