10-026
TROUBLESHOOTING
2-3-3. Brake cannot be released
Parking brake switch must be released.
Brake pedal is not depressed.
Reference Fig.: 2-3-1
Check point
Check/Cause
Action
1. Parking Brake Solenoid Disconnect harness and measure resistance of coil.
Standard resistance : 9.0
Ω
If measured resistance is abnormal, parking brake
solenoid is faulty.
•
•
Replace parking brake
solenoid.
2. Parking Brake Switch
(1) When starter switch is ON, measure voltage between
parking brake switch terminal 1 inlet wire RW and
chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
parking brake switch terminal 3 outlet wire WB and
chassis ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, parking brake
switch is faulty.
•
Replace parking brake
switch.
3. Foot Brake Switch
(1) When starter switch is ON, measure voltage between
foot brake switch terminal inlet wire RY and chassis
ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
foot brake switch terminal outlet wire RW and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, foot brake
switch is faulty.
•
Replace foot brake
switch.
4. 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 SW354
Page 1: ...SW TW354 SW TW504 SHOP MANUAL 3498 6446A 1 ...
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Page 17: ...SAFETY ...
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Page 27: ...SPECIFICATIONS ...
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Page 57: ...ENGINE AND CONTROLS ...
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Page 73: ...HYDRAULIC SYSTEMS ...
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Page 141: ...ELECTRICAL SYSTEM ...
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Page 247: ...VIBRATORY DRUM REAR WHEEL ...
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Page 297: ...BRAKE ...
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Page 303: ...WATER SPRAY SYSTEM ...
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Page 311: ...INSPECTION AND ADJUSTMENT ...
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Page 347: ...TROUBLESHOOTING ...
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Page 451: ...10 101 TROUBLESHOOTING SW504 4 3 Propulsion Refer to P 10 022 ...
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Page 478: ...10 127 TROUBLESHOOTING SW504 5 HYDRAULIC SYSTEM TROUBLESHOOTING SW504 Refer to P 10 073 ...
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