10-031
TROUBLESHOOTING
2-4-3. Brake does not operate
Parking brake switch must be applied (brake ON).
Foot brake switch must be OFF (Brake pedal is depressed).
Reference Fig.: 2-4-1
Check point
Check/Cause
Action
1. Brake Solenoid
Disconnect harness and measure resistance of coil.
Standard resistance: 12.3
± 1.2
Ω
If measured resistance is abnormal, brake solenoid is
faulty.
•
•
Replace brake solenoid.
2. Foot Brake Relay
When starter switch is ON, measure voltage between
foot brake relay terminal 3 outlet wire BrW and chassis
ground.
There is no electricity in normal condition.
If electricity flows, foot brake relay is faulty.
•
•
Replace foot brake relay.
3. Foot Brake Switch
When starter switch is ON, measure voltage between foot
brake switch outlet wire LgR and chassis ground.
There is no electricity in normal condition.
If electricity flows, foot brake switch is faulty.
•
•
Replace foot brake
switch.
4. Parking Brake Switch
When starter switch is ON, measure voltage between
parking brake switch terminal 3 outlet wire Y and chassis
ground.
There is no electricity in normal condition.
If electricity flows, parking brake switch is faulty.
•
•
Replace parking brake
switch.
5. Harness Connecting
Between Terminals
Measure resistance of harness connecting between
terminals.
Standard resistance: 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
Repair or replace
harness.
•
•
Summary of Contents for SW800-II
Page 1: ...SW800 850 SHOP MANUAL 3498 65547 0...
Page 2: ......
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Page 11: ...SAFETY...
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Page 21: ...SPECIFICATIONS...
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Page 32: ......
Page 33: ...ENGINE AND CONTROLS...
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Page 41: ...HYDRAULIC SYSTEMS...
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Page 79: ...ELECTRICAL SYSTEM...
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Page 91: ...VIBRATORY DRUM...
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Page 143: ...BRAKE...
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Page 149: ...WATER SPRAY SYSTEM...
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Page 155: ...INSPECTION AND ADJUSTMENT...
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Page 173: ...TROUBLESHOOTING...
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