TM 5-5420-280-23&P
0077 00
HYDRAULIC CHECK VALVES REPLACEMENT (Contd)
SUPPORT CYLINDERS HYDRAULIC CHECK VALVE INSTALLATION
NOTE
Install tubing and hoses as noted at removal.
Apply a light coat of hydraulic oil to tube seals and O-rings at
installation.
1.
If removed, install four new O-rings (9) and adapters (8) on support cylinders hydraulic check
valve (13).
2.
Install check valve (13) on bracket (11) of crossmember (12) with two screws (10), washers (2), and
nuts (1).
3.
Install tee fitting (30) on middle adapter (8) of check valve (13) and tighten nut (31).
4.
Install elbow (34) on top of tee fitting (30) and tighten nut (33).
5.
Install tee fitting (27) on bottom adapter (8) of check valve (13) and tighten nut (28).
6.
Install elbow (25) on end of tee fitting (27) and tighten nut (26).
7.
Connect hose (22) to tee fitting (27) on check valve (13) and tighten nut (21).
8.
Connect hose (23) to elbow (25) on check valve (13) and tighten nut (24).
9.
Install end of tee fitting (15) on steel tube (20) with new tube seal (5) and tighten nut (14).
10.
Connect other end of steel tube (20) with new tube seal (5) on elbow (34) of check valve (13) and
tighten nut (14).
11.
Connect steel tube (19) to bottom of tee fitting (15) with new tube seal (5) and tighten nut (18).
12.
Connect steel tube (17) to end of tee fitting (15) with new tube seal (5) and tighten nut (16).
13.
Connect steel tube (32) to end of middle tee fitting (30) with new tube seal (5) and tighten nut (29).
14.
Connect steel tube (35) to top adapter (8) with new tube seal (5) and tighten nut (36).
15.
Install elbow (6) on adapter (8) and tighten nut (7).
16.
Connect steel tube (3) on elbow (6) with new tube seal (5) and tighten nut (4).
17.
Operate hydraulic system and check for leaks. Refer to TM 5-5420-280-10.
NOTE
The pallet hydraulic system is self-bleeding, and with exception of
the telescopic tube hydraulic cylinders, there is no requirement for
bleeding air from the system.
18.
Install bridge halves on bridge pallet WP 0018 00.
0077 00-6