TM9-2320-363-20-1
Troubleshooting
Symptom Index (Cent)
Troubleshooting
Malfunction
Procedure
Number
Malfunction
Page
COOLING
SYSTEM
1.
LOSS OF COOLANT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
ELECTRICAL
SYSTEM
CHARGING
CIRCUITS
l.
LOW BATTERY
VOLTAGE.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.
BATTERIES
NOT
CHARGING
(EITHER
VOLTAGE),
VOLTMETER
INDICATES
VOLTAGE
3.
BATTERIES
NOT
CHARGING, VOLTMETER DOES NOT INDICATE
VOLTAGE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.
+12 VDC
CIRCUITS
NOT
CHARGING,
+24 VDC
CIRCUITS
NORMAL
. . . . .
5.
+24 VDC
CIRCUITS
NOT
CHARGING,
+12 VDC
CIRCUITS
NORMAL
. . . . .
ENGINE
BRAKE
RETARD
CIRCUITS
1.
ENGINE
BRAKE
RETARD
(JAKE
BRAKE)
NOT OPERATING,
TRANSMISSION
LOCKUP
OPERATING
NORMALLY
2;
ENGINE
BRAKE
RETARD
(JAKE
BRAKE)
TWO-CYLINDER
- . . . . -
BRAKE
NOT
OPERATING,
FOUR-CYLINDER
BRAKE
OPERATING
NORMALLY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
ENGINE
BRAKE
RETARD
(JAKE
BRAKE)
FOUR-CYLINDER
BRAKE
NOT
OPERATING,
TWO-CYLINDER
BRAKE
OPERATING
NORMALLY
. . . . . . .
ENGINE
FAN CIRCUIT
1.
ENGINE
FAN
FAILS
TO OPERATE
WHEN
COOLANT
TEMPERATURE
IS
190°F T0 210°F
(87°C TO 98°C).
. . . . . . . . . . . . . . . . . . . . . . . .
2.
LACK OF FAN
CLUTCH
DISENGAGEMENT
. . . . . . . . . . . . . . . . . . . . .
HEADLIGHT
CIRCUITS
1.
2.
3.
4.
5.
6.
7.
8.
NEITHER
HEADLIGHT
OPERATES
WHEN
SWITCH
IS TURNED
ON
LEFT
HEADLIGHT
FAILS
TO OPERATE
WHEN
SWITCH
IS TURNED
ON : : :
RIGHT
HEADLIGHT
FAILS TO OPERATE
WHEN
SWITCH
IS TURNED
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NEITHER
HEADLIGHT
LOW/HIGH
BEAM
OPERATES
WHEN
TURN
SIGNAL
SWITCH
LEVER
IS SET
. . .
LEFT
HIGH-BEAM
DOES
NOT
OPERATE ............................
LEFT
LOW-BEAM
DOES
NOT
OPERATE
. . . . . . . . . . . . . . . . . . . . . . .
RIGHT
HIGH-BEAM
DOES
NOT
OPERATE
. . . . . . . . . . . . . . . . . . . . . .
RIGHT
LOW-BEAM
DOES
NOT OPERATE
. . . . . . . . . . . . . . . . . . . . . .
3-21
3-23
3-23
3-23
3-24
3-24
3-25
3-26
3-26
3-27
3-27
3-28
3-30
3-31
3-32
3-32
3-33
3-33
3-33
3-11