Chapter 3. ENGINE REPAIR INSTRUCTIONS

TM 5-6115-465-34

T035C2-3-446-2

NAVFACP-8-625-34

TM06858B/06859D-34

CHAPTER 3

ENGINE REPAIR INSTRUCTIONS

ENGINE ELECTRICAL SYSTEM

Section I.

(7) Remove spring (27) and contact assembly

3-1. GENERAL

(28).

The engine elecirical system consists of a start-

(8) Remove plug (29), retaining ring (30), pin

ing circuit, a battery charging circuit, and protect-

(31) and boot clamp (32) to remove plunger (33).

ive and monotoring devices. Electrical power for

cranking the engine is supplied by two 12 volt, 100

(9) Remove retaining ring (34) to remove

amp-hour lead-acid type batteries connected in

spring retainer (35), spring (36), boot (37), spring

series. A slave receptacle facilitates external con-

retainer (38), washer (39), and retaining ring (40)

nection to the batteries. The starter assembly is a

24 volt, heavy duty unit consisting of a darting

from plunger (33).

motor, a solenoid, and a drive assembly. The batt-

(10) Remove bolts (41) to remove commutator

ery charging alternator with integral voltage regula-

end frame (42), packing (43) and spacer washer (44).

tor and diode rectifier recharges and maintains the

batteries in a fully charged condition after starting.

(11) Remove plug (45) and oil wick (46).

3-2. B A T T E R I E S

(12) Do not remove bushing (47) unless inspect-

Refer to the Operator and Organizational Main-

ion reveals defective parts.

tenance Manual for battery maintenance procedures.

(13) Remove pin (48) to remove brush spring

(49) and brushholders (50).

3-3. SLAVE RECEPTACLE.

(14) Remove screws (51), electrical leads

Refer to the Operator and Organizational Main-

(52) and brushes (53) from brushholders (50).

tenance Manual for slave receptacle maintenance

procedures.

3-4. STARTER ASSEMBLY.

CAUTION

Use care when removing armature to pre-

a. Removal. Refer to the Operator and Organi-

vent damage to windings.

zational Maintenance Manual for starter removal

procedures.

(15) Slide armature (54) from housing (55).

b. Disassembly.

(16) Remove nut (56), flat washer (57), and

(1) Remove nut (1. figure 3-1). lockwasher

insulating washer (58). -

(2) and terminal lead (3).

(17) Remove screws (59) to remove pole shoes

(2) Remove screws (4) to remove solenoid

(60), field coil assembly (61 ) and insulator (62).

assembly (5) from starter assembly.

(18) Remove and discard o-ring (63) and pack-

(3) Remove nut (6), fiat washer (7), and in-

ing (64).

sulating washer (8).

(4) Remove nut (9), lockwasher (10), nut (11),

(19) Remove screws (65) and lockwashers (66)

flat washer (12) and insulating washer (13).

to remove drive housing (67) and gasket (68). Discard

gasket.

(5) Remove screws (14) and flat washers (15)

to remove cover (16) and gasket (17) from frame as-

(20) Remove plug (69) and oil wick (70).

sembly (18). Discard gasket.

(21) Do not remove bushing (71) unless inspect-

(6) Remove nuts (19), lockwashers (20), nuts

ion reveals defects.

(21), flat washers (22), and insulating washers (23)

to remove terminal studs (24 and 25) and contact

(22) Remove plug (72) to remove pivot pin

strip (26).

(72).

3-1