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 288 of 352

TM 9-2350-311-34-1

10-2 COOLANT HEATER — CONTINUED

a. Disassembly — Continued

Compression sleeve is to be removed only if resistor requires replacement.

Compression fitting is pressed securely to fuel tube and must be cut or ground off.

NOTE

Compression sleeve must be removed before removing resistor from fuel tube.

33 Remove union (63), compression sleeve (64), nut (36), resistor (55), and flange (58). Discard compression

sleeve.

34 Remove two nuts (65), two clamps (66), and two hook bolts (67), securing burner assembly (68) to heat

exchanger (69).

35 Remove burner assembly (68), preformed packing (70), and gasket (71). Discard preformed packing and

gasket.

36 Remove four screws (72) and bracket (14).

NOTE

Note direction of arrow on diode to ensure proper positioning during assembly.

37 Remove diode (73) from diode holder (74).

38 Remove two screws (75 and 76) and diode holder (74).

39 Remove four screws (77), terminal strip (8), and marker strip (78).

40 Remove nut (79) and bracket (80) with resistor motor (81) attached.

41 Remove nut (82), screw (83), and resistor motor (81).

42 Remove two assembled nuts (84), two flat washers (85), restriction thermostat (1 8), and two spacers (86).

Discard nuts.

43 Remove three screws (87).

44 Spread housing (16) and remove heat exchanger (69).

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