9-051
TROUBLESHOOTING
2-5-3. Brake cannot be released
Parking brake switch must be released.
Foot brake switch must be ON (Brake pedal is not depressed).
Reference Fig.: 2-5-1
Check point
Check/Cause
Action
1. Parking Brake Solenoid Disconnect harness and measure resistance of coil.
Standard voltage : 45
± 4.5
Ω
If measured resistance is abnormal, parking brake
solenoid is faulty.
•
•
Replace parking brake
solenoid.
2. Foot Brake Switch
(1) when starter switch is ON, measure voltage between
foot brake switch terminal COM inlet wire R and chassis
ground.
Standard voltage : 24 V or more
(2) when starter switch is ON, measure voltage between
foot brake switch terminal NO outlet wire LgR and
chassis ground.
Standard voltage : 24 V or more
If above item (1) is OK and item (2) is NG, foot brake
switch is faulty.
•
Replace foot brake
switch.
3. Parking Brake Switch
(1) when starter switch is ON, measure voltage between
parking brake switch terminal 1 inlet wire LgR and
chassis ground.
Standard voltage : 24 V or more
(2) when starter switch is ON, measure voltage between
parking brake switch terminal 3 outlet wire BrW and
chassis ground.
Standard voltage : 24 V or more
If above item (1) is OK and item (2) is NG, parking brake
switch is faulty.
•
Replace parking 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.
•
•
Содержание SV540 Series
Страница 1: ...SV540 SHOP MANUAL 3498 6418A 0 ...
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Страница 13: ...SAFETY ...
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Страница 23: ...SPECIFICATIONS ...
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Страница 43: ...ENGINE AND CONTROLS ...
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Страница 53: ...HYDRAULIC SYSTEMS ...
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Страница 85: ...ELECTRICAL SYSTEM ...
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Страница 119: ...VIBRATORY DRUM REAR AXLE ...
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Страница 169: ...BRAKE ...
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Страница 179: ...INSPECTION AND ADJUSTMENT ...
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Страница 207: ...TROUBLESHOOTING ...
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