10-040
TROUBLESHOOTING
2-5. Water Spray
Check following items before troubleshooting.
No blown fuses and power is applied up to fuses.
Check any ground circuit which belongs to components to be checked.
2-5-1. Continuous water spray does not operate
Water spray mode select switch must be “CONT”.
Reference Fig.: 2-5-1
Check point
Check/Cause
Action
1. Battery
Measure battery voltage or specific gravity.
Standard voltage : 12 V or more
Standard gravity : 1.26 or more
If value is below standard, battery capacity is insufficient.
•
•
Charge or replace
battery.
2. Water Spray Pump
(1) When starter switch is ON, measure voltage between
water spray pump terminal inlet wire LB and chassis
ground.
Standard voltage : 12 V or more
(2) Check that no abnormality is found in water spray pump
ground terminal.
If above items (1) and (2) are OK and water spray pump
does not operate, water spray pump is faulty.
•
Replace water spray
pump.
3. Water Spray Relay
(1) When starter switch is ON, measure voltage between
water spray relay terminal g inlet wire LW and chassis
ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
water spray relay terminal B inlet wire LY and chassis
ground.
Standard voltage : 12 V or more
(3) When starter switch is ON, measure voltage between
water spray relay terminal G outlet wire LB and chassis
ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) is NG,
water spray relay is faulty.
•
Replace water spray
relay.
4. Water Spray Mode
Select Switch
(1) When starter switch is ON, measure voltage between
water spray mode select switch terminal 1 inlet wire
LY and chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
water spray mode select switch terminal 2 outlet wire
LW and chassis ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, water spray
mode select switch is faulty.
•
Replace water spray
mode select 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.
•
•
•
Содержание SW354
Страница 1: ...SW TW354 SW TW504 SHOP MANUAL 3498 6446A 1 ...
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Страница 17: ...SAFETY ...
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Страница 27: ...SPECIFICATIONS ...
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Страница 57: ...ENGINE AND CONTROLS ...
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Страница 73: ...HYDRAULIC SYSTEMS ...
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Страница 141: ...ELECTRICAL SYSTEM ...
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Страница 187: ...5 033 ELECTRICAL SYSTEM 4 10 2 Cap TW354 504 1447 09002 0 40043 0 SWP 3M Frame R harness P 5 023 ...
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Страница 235: ...5 078 ELECTRICAL SYSTEM SW504 8 18 2 Cap except ROPS 1418 09044 0 40589 0 SWP 4F Dashboard harness 2 P 5 055 G ...
Страница 247: ...VIBRATORY DRUM REAR WHEEL ...
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Страница 297: ...BRAKE ...
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Страница 303: ...WATER SPRAY SYSTEM ...
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Страница 311: ...INSPECTION AND ADJUSTMENT ...
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Страница 347: ...TROUBLESHOOTING ...
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Страница 451: ...10 101 TROUBLESHOOTING SW504 4 3 Propulsion Refer to P 10 022 ...
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Страница 461: ...10 110 TROUBLESHOOTING SW504 4 5 Water Spray Refer to P 10 040 Refer to ROPS type for water spray timer ...
Страница 478: ...10 127 TROUBLESHOOTING SW504 5 HYDRAULIC SYSTEM TROUBLESHOOTING SW504 Refer to P 10 073 ...
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