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Electric Standby (Optional) Diagnosis
130
Contact chatter
Low battery voltage
Check voltage condition. Check
momentary voltage dip during
starting—low voltage prevents
magnet sealing
Defective or incorrect coil
Replace coil
Poor contact in control circuit
Check auxiliary switch contacts and
overload relay contacts. Check for
loose connections in control circuits
Contact welding or freezing
Abnormal in-rush of current
Check or grounds, shorts or
excessive motor load current
Low voltage
Correct voltage condition. Check
momentary voltage dip during
starting
Foreign matter prevents contacts
from closing
Clean contacts
Rapid cycling
Check for cause of short cycling
(such as thermostat)
Short circuit
Correct fault
Electric heaters do not heat—
(optional) indicator lights come
on
Defective heater contactor
Replace contactor
HC wire open
Locate open and repair
Battery is not recharging
Loose connections in electrical
system
Check all electrical connections and
charging system
Worn brushes in alternator
Replace brushes
Voltage regulator faulty
Repair or replace regulator
Battery defective
Replace battery
Alternator defective
Repair or replace alternator
Loose belt
Tighten belt
Dirty battery terminals
Clean and retighten
Alternator relay defective
Replace relay
Fuse F309 open
Replace fuse
Condition
Possible Cause
Remedy
Summary of Contents for 919180
Page 4: ...4...
Page 10: ...Table of Contents 10...
Page 32: ...Unit Description 32 Unit Photographs Figure 3 Front View Figure 4 Back View AJA584 AJA585...
Page 33: ...Unit Description 33 Figure 5 Left Side View Figure 6 Right Side View AJA586 AJA58...
Page 35: ...Unit Description 35 Figure 8 North American Power Receptacle Box AJA58...
Page 38: ...Unit Description 38...
Page 58: ...Electrical Maintenance 58...
Page 66: ...Engine Maintenance 66 Figure 37 Fuel and Oil System Components...
Page 84: ...Engine Maintenance 84...
Page 96: ...Refrigeration Maintenance 96...
Page 118: ...Hilliard Clutch Maintenance 118...
Page 136: ...Cycle Diagrams 136...
Page 140: ...Wiring and Schematic Diagrams Index 140...
Page 141: ...141 Truck S Model SR 30 Schematic Diagram Page 1 of 2...
Page 142: ...142 Truck S Model SR 30 Schematic Diagram Page 2 of 2...
Page 143: ...143 Truck S Model 30 Units with P T Wiring Diagram Page 1 of 2...
Page 144: ...144 Truck S Model 30 Units with P T Wiring Diagram Page 2 of 2...
Page 145: ...145 Truck S Model 50 Schematic Diagram Page 1 of 2...
Page 146: ...146 Truck S Model 50 Schematic Diagram Page 2 of 2...
Page 147: ...147 Truck S Model 50 Units with P T Wiring Diagram Page 1 of 2...
Page 148: ...148 Truck S Model 50 Units with P T Wiring Diagram Page 2 of 2...