10-019
TROUBLESHOOTING
2-3-1. Engine will not start (starter motor does not run) 2/2
Reference Fig.: 2-3-1
Check point
Check/Cause
Action
5. DC Contactor
(1) When starter switch is ON, measure voltage between
DC contactor terminal 1 inlet wire and chassis ground.
Standard voltage: 12 V or more
(2) When starter switch is START, measure voltage
between DC contactor terminal A1 inlet wire and
chassis ground.
Standard voltage: 12 V or more
(3) When starter switch is ON, measure voltage between
DC contactor terminal 2 outlet wire and chassis ground.
Standard voltage: 12 V or more
If above items (1) and (2) are OK and item (3) is NG, DC
contactor is faulty.
•
Replace DC contactor.
6. Start Check Relay
(1) When starter switch is ON, measure voltage between
start check relay terminal 1 inlet wire BR and chassis
ground.
Standard voltage: 12 V or more
(2) When starter switch is START, measure voltage
between start check relay terminal 3 inlet wire BY and
chassis ground.
Standard voltage: 12 V or more
(3) When starter switch is START, measure voltage
between start check relay terminal 5 outlet wire and
chassis ground.
Standard voltage: 12 V or more
If above items (1) and (2) are OK and item (3) is NG, start
check relay is faulty.
•
Replace start check
relay.
7. F-R Lever Switch
Check continuity between F-R lever switch terminal COM
and NC with F-R lever in neutral and starter switch OFF.
Switch is OK if there is continuity.
If there is no continuity, F-R lever switch is faulty.
•
•
Replace F-R lever
switch.
8. 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...
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Page 11: ...SAFETY...
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Page 21: ...SPECIFICATIONS...
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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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