Section III: REPAIR PROCEDURES

TM 55-4920-405-13&P

Section III.

REPAIR PROCEDURES

through the control panel, Handle the

4-4. REMOVAL AND DISASSEMBLY. Remove

AMMETER carefully.

and disassemble only those parts authorized at the

(d) Replace the defective AMMETER.

i n t e r m e d i a t e maintenance levels

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(5) Reservoir Fluid Level Indicator Gage. To

--AUTION

C --

remove RESERVOIR FLUID LEVEL INDI-

CATOR gage (10, figure 2-1), proceed as

Before making repairs, disconnect both

follows:

battery cables from the battery terminals.

(a) Remove the nuts that attach the elec-

a. Electrical System. Remove and disassemble

trical leadwires to the studs at the

parts of the electrical system as follows:

rear of the gage. Tag the leadwires

so that you can reconnect them

(1)

Ignition Wire Assembly.

correctly.

(b) Remove the u-clamp from the gage.

(a) Remove the nut that fastens each igni-

Push the gage out of the control panel.

tion wire to a spark plug (2. figure

Handle the gage carefully.

4-5).

(b) Remove) the nut that fastens each igni-

tion wire to magneto (1).

( 6 ) Fuel Level Gage. To remove FUEL

LEVEL gage (4, figure 2-1), proceed as

that attaches the ignition wire clip to

follows:

the engine. Remove the ignition wire

assembly.

(d) Replace all defective ignition wires.

(a) Remove the nuts that attach the elec-

trical leadwires to the studs at the

rear of the gage. Tag the leadwires

(2)

Starter Motor. To remove starter motor

so that you can reconnect them

(9, figure 4-5) proceed as follows:

correctly.

(b) Remove the u-clamp from the gage.

(a)

Disconnect the electrical cable from

Push the gage carefully out of the con-

the starter motor terminal.

trol panel. Handle the gage with care.

Remove the two nuts and lockwashers

(b)

that attach support bracket (8) to the

engine.

(c)

( 7 ) Electrical Wiring and Cables. To remove

Hold the starter motor up, and re-

electrical wiring or cables, proceed as

move the three bolts and lockwashers

follows:

that attach the starter motor to the

engine.

(a) For electrical wires or cables that

(d)

Pull the starter motor and support

are not laced or taped into a wiring

bracket free of the engine.

harness, disconnect the wire or cable

Remove the screw and washer that

(e)

at both ends. Then, remove it from

attach the starter motor to the sup-

the test stand.

port bracket, and remove the starter

motor from the support bracket.

(b) For electrical wires or cables that

are laced or taped into a wiring

(f)

Replace the defective starter motor.

harness, disconnect both ends. Cut

back one end, and try to snake the

(3)

Temperature Switch. To remove the

wire or cable out of the harness. If it

temperature switch from manifold (6, fig-

cannot be snaked out of the harness,

ure 4-6), disconnect the electrical lead-

cut back the other end as well, and let

wire from the temperature switch. Then,

it remain in the harness.

unscrew the temperature switch. Replace

a defective temperature switch.

(8) Starter and Ignition Switches. To remove

(4)

A m m e t e r . To remove AMMETER (3,

STARTER switch (5, figure 2-2) or IGNI-

figure 2-1), proceed as follows:

TION SWITCH (2), proceed as follows:

Remove the nuts that attach the lead-

(a)

Disconnect the electrical leadwire

wires to the studs at the rear of the

(a)

lugs from the switch terminals. Tag

AMMETER.

the leadwires so that you can recon-

(b)

Disconnect the leadwires and tag them

nect them correctly.

so that you can reconnect them

Using a wrench, back off the nex nut

correctly.

(b)

at the rear of the control panel. This

(c)

Remove the u-clamp from the meter.

will loosen the switch.

Push the AMMETER carefully out

4-12