INSTALLATION (cont) - TM-9-2320-285-24-10223

TM 9-2320-285-24-1

2-24.

ALTERNATOR MAINTENANCE (CONT)

STEP

LOCATION

ITEM

ACTION

REMARKS

INSTALLATION (cont)

g. Boot (19)

Position

Over positive terminal

(cont)

h. Two ground

Connect

To capscrew (5)

wires (8

and 10)

i. Capscrew (5)

Install and

Secures ground wires (8 and

tighten

10)

NOTE

The alternator rotor normally retains magnetism to provide voltage build-

up (self-excitation) when engine is started. After installation, however, it

may be necessary to reestablish magnetism in the rotor as described in

the following step.

Jumper lead

Connect

From battery positive post to

momentarily

alternator relay ("R") ter-

minal to restore magnetism;

then remove

TESTING

Engine,

Ammeter

Connect

In series with wires connect-

left rear

ed from alternator output

side

terminal

Battery

a. Battery ground

Reconnect

Para 2-34a

box

cable

b. Carbon pile

Connect

Across batteries

Instrument

Key switch

Turn on and

Operate engine at moderate

panel

start

speed to give alternator

engine

speed of 4000 rpm or more.

Turn on all accessories to

increase load on batteries

Engine,

Ammeter

Observe

If reading is within 10

left rear

amperes of rated output

side

stamped on alternator

frame, the integral charging

unit is not defective

If ampere output is not within

in 10 amperes of rated

output, remove alternator for

repair (notify direct

support maintenance)

2-200