TM 9-2330-381-14
4-86. APU HYDRAULICS (CONT)
INSTALLATION
CAUTION
Apply pipe sealant compound to the all male pipe threaded hydraulic fittings, using
only enough compound to coat the threads. Do not allow compound to enter a
component/fitting or the compound may restrict fluid passages and damage to
equipment or premature equipment failure may result.
Note positioning/orientation of fittings on the illustrations. It is important to have
the tightened fittings positioned as shown so that hoses are not too short and
fittings do not interfere with one another or damage to equipment may result.
1.
Remove caps/plugs installed and apply pipe sealant to male threads of fittings. Install ball valve (23) and pipe
elbow (20) onto hydraulic tank (10). If necessary, reinstall hydraulic tank (para. 4-91).
2.
Remove caps/plugs and apply pipe sealant to male pipe threads of tube tee (22) and install tube tee (22) onto
hydraulic tank (10). Install tube elbow (9) and straight pipe-to-tube adapter (8) onto tube tee (22).
3.
Lubricate preformed packing (21 and 17) with petroleum jelly. Install preformed packing (21) onto straight pipe-to-
tube adapter (19). Install preformed packing (17) onto straight pipe-to-tube adapter (12).
4.
Remove caps/plugs and install straight pipe to tube adapter (19) into curbside of hydraulic pump (13).
5.
Remove caps/plugs and install straight pipe-to-tube adapter (12) into streetside of hydraulic pump (13).
6.
Remove caps/plugs and install hydraulic hose (18) between tube elbow (20) and straight pipe-to-tube adapter
(19).
7.
Remove caps/plugs and install tube nipple (5) onto APU frame (6) and secure with fitting nut (16).
8.
Remove caps/plugs and install two tube nipples (4) onto APU frame (6) and secure with two fitting nuts (15).
9.
Remove caps/plug and install hydraulic hose (11) on straight pipe-to-tube adapter (12) on streetside of hydraulic
pump (13) and tube nipple (5) on APU frame (6).
10.
Remove caps/plugs and install two hydraulic hoses (7) from tube tee (9) and straight pipe-to-tube adapter (8) on
hydraulic tank (10) to two tube nipples (4) on APU frame (6).
4-426
