TM 5-5420-280-23&P
0081 00
HYDRAULIC SUPPORTING WHEELS CONTROL VALVE, SELECTOR VALVE, PRESSURE REGULATOR
VALVE, PRESSURE GAUGE, AND PUMP REPLACEMENT (Contd)
PRESSURE REGULATOR VALVE AND SELECTOR VALVE INSTALLATION
NOTE
Apply hydraulic oil to O-rings at installation.
1.
Install three new O-rings (16) and adapters (25), (24), and (17) on pressure regulator valve (21).
2.
Install pressure regulator valve (21) on A-frame bracket (15) with two screws (20), washers (13), and
new locknuts (12).
NOTE
Apply a light coat of hydraulic oil to tube seals at installation.
Install tubing as noted at removal.
3.
Install new tube seal (5) and tube (18) on adapter (17) of pressure regulator valve (21) and tighten
nut (19).
4.
Install new tube seal (5) and tube (23) on bottom adapter (24) of pressure regulator valve (21) and
tighten nut (22).
5.
Install new tube seal (5) and tube (34) on adapter (25) of pressure regulator valve (21) and tighten
nut (33).
NOTE
Apply a light coat of hydraulic oil to O-rings at installation.
6.
Install six new O-rings (37) and adapters (44), (39), (38), (7), (6), and (47) on selector valve (46).
7.
Install selector valve (46) on A-frame bracket (15) with two screws (14).
8.
Install handle (32) on selector valve shaft (45) and tighten screw (31).
NOTE
Apply a light coat of hydraulic oil to tube seals at installation.
Install tubing as noted at removal.
9.
Install two new tube seals (5) and tubing (2) and (3) on top adapters (47) and (6) of selector valve
(46) and tighten nuts (1) and (4).
10.
Install two new tube seals (5) and tubing (42) and (41) on bottom adapters (44) and (39) of selector
valve (46) and tighten nuts (43) and (40).
11.
Install tee fitting (9) on adapter (7) of selector valve (46) and tighten nut (8).
12.
Install new tube seal (5) and tube (34) on bottom of tee fitting (9) and tighten nut (36).
13.
Install elbows (27) and (28) on adapter (38) and tee fitting (9) of selector valve (46) and tighten
nuts (11) and (10).
14.
Install new tube seal (5) and tube (29) on elbow (27) of tee fitting (9) and tighten nut (26).
15.
Install new tube seal (5) and tube (35) on elbow (28) of adapter (38) and tighten nut (30).
16.
Operate hydraulic supporting wheels and check for leaks. Refer to TM 5-5420-280-10.
0081 00-6
