TM-9-2350-311-34-1

HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-1 - Page 284 of 352

TM 9-2350-311-34-1

SECTION Il. WINTERIZATION KIT COMPONENTS

10-2 COOLANT HEATER

This task covers:

a. Disassembly

b. Assembly

General mechanic’s tool kit (item 14, Appx C)

Riveter (item 18, Appx C)

Blind rivets (4) (item 75, Appx F)

Compression sleeve (item 72, Appx F)

Gasket (item 73, Appx F)

Gasket (item 82, Appx F)

Lockwasher (item 26, Appx F)

Lockwasher (item 30, Appx F)

Nuts (2) (item 76, Appx F)

Preformed packing (item 51, Appx F)

Preformed packing (item 52, Appx F)

Screws (4) (item 74, Appx F)

Screws (3) (item 88, Appx F)

Straps (3) (item 22, Appx F)

Engine coolant heater removed (TM 9-2350-311 -20-1 )

a. Disassembly

1

2

3

4

5

6

7

8

9

10

11

12

13

14

10-24

Remove four screws (1) and guard assembly (2).

Remove nut (3), tube (4), and two elbows (5 and 6).

Disconnect lead (7) from terminal strip (8).

Loosen four nuts (9).

Turn blower motor assembly (10) counterclockwise and pull off engine coolant heater assembly (11).

Remove four assembled screws (12) and receptacle (13) from bracket (14). Discard assembled screws.

Disconnect ground lead (15) from housing (16).

Disconnect lead (17) from restriction thermostat (18).

Disconnect lead (19) from overheat thermostat (20).

Disconnect two leads (21 and 22) from flame detector switch (23).

Remove three tiedown straps (24) from five receptacle leads (15, 17, 19, 21, and 22). Discard tiedown straps.

Remove sleeve (25) from five receptacle leads (15, 17, 19,21, and 22).

Remove receptacle (13) from engine coolant heater assembly (11 ).

Remove five screws (26) and three leads (27, 28, and 29) from flame detector switch (23).