TM 5-5420-280-23&P
0084 00
FORWARD PIN WHEEL DRIVE HYDRAULIC MOTOR REPLACEMENT (Contd)
REMOVAL
CAUTION
Cap or plug all hoses, connections, and openings immediately after
disconnection to prevent contamination. Remove caps or plugs prior
to installation. Failure to do so may result in damage to equipment.
NOTE
Tag hoses for installation.
Have container ready to catch oil.
1.
Loosen nut (26) and remove steel tube (27), and tube seal (16) from elbow (25) on forward pin wheel
drive motor (3). Discard tube seal (16).
2.
Loosen nuts (15) and (20) and remove steel tubes (14) and (21) and two tube seals (16) from
adapters (17) on drive motor (3). Discard tube seals (16).
3.
Remove two drain plugs (4) and O-rings (5) from bottom and side of gear box (6) and drain gear oil
from gear box (6). Discard O-rings (5).
4.
Remove twelve screws (12), washers (11), cover (13), and O-ring (10) from gear box (6). Discard
O-ring (10).
5.
Remove screw (9), washer (8), and gear (7) from drive motor shaft (19).
6.
Remove four screws (1), lockwashers (2), drive motor (3), and O-ring (18) from gear box (6). Discard
O-ring (18) and lockwashers (2).
7.
Loosen nut (24) and remove elbow (25), adapter (23), and O-ring (22) from end of drive motor (3).
Discard O-ring (22).
8.
Remove two adapters (17) from side of drive motor (3).
INSTALLATION
1.
Install two adapters (17) on side of drive motor (3).
NOTE
Apply a light coat of gear oil to O-rings at installation.
2.
Install new O-ring (22), adapter (23) and elbow (25) on end of drive motor (3) and tighten nut (24).
3.
Install new O-ring (18) and drive motor (3) on gear box (6) with four new lockwashers (2) and
screws (1).
NOTE
Ensure that all mounting hardware is tightened to metric
standards unless otherwise noted. Refer to metric torque limits in
4.
Install gear (7) on drive motor shaft (19), short end first, with washer (8) and screw (9).
5.
Install new O-ring (10) and cover (13) on gear box (6) with twelve washers (11) and screws (12).
6.
Install two new O-rings (5) and drain plugs (4) on bottom and side of gear box (6).
NOTE
Rear pin wheel drive must be set at 0-degrees position when filling
gear box housing. Refer to WP 0086 00.
7.
Remove fill plug and O-ring from end of gear box (6), and fill gear box (6) with gear oil until oil
comes out of fill plug hole. Install O-ring and fill plug on end of gear box (6).
8.
Install two new tube seals (16) and steel tubes (14) and (21) on two adapters (17) of drive motor (3)
and tighten nuts (15) and (20).
9.
Install new tube seal (16) and steel tube (27) on elbow (25) and tighten nuts (24).
0084 00-2
