TM-9-2320-285-24-1

TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1985
TM-9-2320-285-24-1

  TM-9-2320-285-24-1 - Page 224 of 987

TM 9-2320-285-24-1
2-24.
ALTERNATOR MAINTENANCE (CONT)
STEP
LOCATION
ITEM
ACTION
REMARKS
TESTING (cont)
17
Instrument
Key switch
Turn off
Turn off accessories
panel
18
Battery
a.
Battery ground
Disconnect
Para 2-34a
box
cable
b.
Carbon pile
Remove
19
Engine,
a.
Ammeter
Remove
left rear
b.
Voltmeter
Connect
From alternator output
side
terminal to ground
20
Instrument
Key switch
Turn on and
Leave all accessories off.
panel
start
Increase engine speed to
engine
obtain maximum voltage
reading
21
Engine,
Voltmeter
Observe
If reading exceeds 15 volts,
left rear
remove alternator for
repair (notify direct
support maintenance)
22
Instrument
Key switch
Turn off
panel
23
Engine,
Voltmeter
Disconnect
left rear
side
24
Battery
Battery ground
Connect
Para 2-34a
box
cable
2-201


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