TM 9-2350-277-20-5
REPLACE COOLANT HEATER PUMP
0731 00
THIS WORK PACKAGE COVERS:
Removal (page 0731 00-1).
Installation (page 0731 00-2).
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0926 00, Item 65)
Materials/Parts
Sealing compound (WP 0928 00, Item 56)
Lockwasher
Personnel Required
Unit Mechanic
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
Trim vane lowered (see your -10)
Power plant access door open (see your -10)
Carrier cooling system drained (WP 0227 00)
Coolant heater system drained (WP 0710 00)
Battery ground strap disconnected (WP 0337 00),
(WP 0338 00), or (WP 0339 00)
Coolant heater and pump unit removed (WP 0728 00)
REMOVAL
1.
Remove screw (1) and circuit lead 402B (2) from terminal strip (3).
2.
Remove nut (4) and ground lead (5) from pump mounting screw (6).
3.
Remove nut (7) and circuit 402B lead (2) from pump terminal (8).
4.
Remove nut (9) and ground lead (5) from pump terminal (10).
5.
Remove wiring harness (11) from pump (12).
6.
Loosen clamp (13). Remove hose (14) from elbow (15).
7.
Remove two screws (16), three washers (17), lockwasher (18), nut (19), retaining strap (20), and pump (21) from support
bracket (22). Discard lockwasher.
8.
Remove elbow (15) from pump (21).
9.
Loosen clamp (23). Remove hose (24) from shutoff valve (25).
0731 00-1
