TM-9-2330-356-14

SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1

TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1990

TM-9-2330-356-14 - Page 360 of 528

TM 9-2330-356-14

e.

The bypass valve controls oil pressure by allowing

excess oil to flow directly back to the crankcase.

7-6.

Starting System (Fig. 7-4)

a.

The

engine is cranked by a 12V starting motor.

b.

When the solenoid of the starting motor is

energized, the solenoid core pulls inward and shifts the

pinion into engagement with the ring gear on the engine

flywheel.

c.

An overrunning clutch protects the starting

motor from overspeeding by the engine.

d.

The

energized solenoid also closes a set of

contacts to provide a circuit for the starting motor.

e.

The starting motor remains engaged until the

starting switch is released by operator.

f.

Refer to paragraph 2-10 for starting and operating

procedures.

Ftgure 7-4. Starting System.

7-4