9-046
TROUBLESHOOTING
2-4-5. Brake does not work
Parking brake switch must be applied.
Brake pedal is depressed.
Reference Fig.: 2-4-1
Check point
Check/Cause
Action
1. Parking Brake Solenoid Disconnect harness and measure resistance of coil.
Standard resistance : 12.3
± 1.2
Ω
If measured resistance is abnormal, parking brake
solenoid is faulty.
•
•
Replace parking brake
solenoid.
2. Parking Brake Switch
When starter switch is ON, measure voltage between
parking brake switch terminal 3 outlet wire BrW and
chassis ground.
There is no electricity in normal condition.
If there is electricity, parking brake switch is faulty.
•
•
Replace parking brake
switch.
3. Foot Brake Switch
When starter switch is ON, measure voltage between foot
brake switch terminal NO outlet wire LgR and chassis
ground.
There is no electricity in normal condition.
If there is electricity, foot brake switch is faulty.
•
•
Replace foot brake
switch.
4. Pump Neutral Relay
(A3)
(1) When starter switch is ON, measure voltage between
pump neutral relay terminal 1 inlet wire BrW and
chassis ground.
There is no electricity in normal condition.
(2) When starter switch is ON, measure voltage between
pump neutral relay terminal 5 outlet wire LY and chassis
ground.
There is no electricity in normal condition.
If above items (1) is OK and item (2) is NG, pump neutral
relay is faulty.
•
Replace pump neutral
relay (A3).
5. Pump Neutral Holding
Relay (A4)
(1) When starter switch is ON, measure voltage between
pump neutral holding relay terminal 1 inlet wire LY and
chassis ground.
There is no electricity in normal condition.
(2) When starter switch is ON and F-R lever is “F” or “R”,
measure voltage between pump neutral holding relay
terminal 5 outlet wire GW and chassis ground.
There is no electricity in normal condition.
If above items (1) is OK and item (2) is NG, pump neutral
holding relay is faulty.
•
Replace pump neutral
holding relay
(A4).
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.
•
•
Содержание SV414
Страница 1: ...SV414 SHOP MANUAL 3498 64214 0 ...
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Страница 13: ...SAFETY ...
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Страница 23: ...SPECIFICATIONS ...
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Страница 37: ...ENGINE AND CONTROLS ...
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Страница 93: ...ELECTRICAL SYSTEM ...
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Страница 127: ...VIBRATORY DRUM REAR AXLE ...
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Страница 185: ...INSPECTION AND ADJUSTMENT ...
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