Belt Adjusting Control, Spring and Bracket Pulley

b . I n s t a l l a t i o n . Refer to figure 4-22 and install

4-38.

Belt

Adjusting

Control,

Spring

and

the belt adjusting control, spring and bracket

Bracket Pulley

pulley.

a . Removal. Refer to figure 4-22 and remove the

b e l t adjusting control, spring and bracket pulley.

Section

XIII.

ELECTRICAL

SYSTEM

half throttle and disconnect the field jumper. If the

4-39.

General

output remains high, the fault is in the generator. If

This section contains information on the main-

the output drops to zero, the fault is in the

tenance

the

electrical

system

which

the

regulator. Replace a defective generator and/or

responsibility of organizational maintenance.

regulator.

WARNING

(3) When a low-or no-charging rate with

Before

disconnecting any

electrical

p a r t i a l l y or fully discharged batteries is indicated,

components, make sure battery cables

i n s p e c t for loose connections or damaged wiring. If

are disconnected at batteries to prevent

none, stop the engine and disconnect the field

a serious burn or shock to personnel or

jumper.

Momentarily connect a jumper wire

damage to equipment.

between the generator field terminal and the

4-40.

Engine

Generator

and

Bracket

positive terminal of batteries to polarize the

On-Equipment

Testing.

generator. Reconnect the field jumper and start the

( 1 ) Refer to figure 4-23, and install a suitable

engine. If the charging rate does not increase as the

a d a p t e r in the generator receptacle.

engine speed is increased, slow the engine and

(2) When a high-charging rate with fully-

c o n n e c t a jumper wire between the armature and

c h a r g e batteries is indicated, operate the unit at

field terminals. If the charging rate does not in-

4-25