Sakai SW800-II, Руководство по ремонту

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10-051
TROUBLESHOOTING
2-6. Water Spray
Check following item before troubleshooting.
No blown fuses.
2-6-1. Continuous water spray does not operate 1/2
Water spray selector switch must be CONT.
Set water spray pump switch to simultaneous spray position.
Water spray timer must be OFF.
Reference Fig.: 2-6-1
Check point Check/Cause Action
1. Water Spray Pump
1 (F) and 2 (F),
1 (R) and 2 (R)
(1) When starter switch is ON, measure voltage between
water spray pumps terminal inlet wires and chassis
ground.
Water spray pump 1 (F) inlet wire: G
Water spray pump 2 (F) inlet wire: GW
Water spray pump 1 (R) inlet wire: L
Water spray pump 2 (R) inlet wire: LW
Standard voltage: 12 V or more
(2) Check if grounding of water spray pumps are normal.
If above items (1) and (2) are OK and water spray pump
does not operate, water spray pump is faulty.
•
Replace water spray
pump 1 (F) or 2 (F),
1 (R) or 2 (R).
2. Water Spray Pump
Switch (F) and (R)
(1) When starter switch is ON, measure voltage between
water spray pump switches terminal 2 or 5 inlet wire
and chassis ground.
W ater spray pump switch (F) inlet wire: W
Water spray pump switch (R) inlet wire: Y
Standard voltage: 12 V or more
(2) When starter switch is ON, measure voltage between
water spray pump switches terminal 3 or 4 outlet wire
and chassis ground.
Water spray pump switch terminal 3
Front side : G, Rear side: L
Water spray pump switch terminal 4
Front side : GW, Rear side: LW
Standard voltage: 12 V or more
If above item (1) is OK and item (2) is NG, water spray
selector switch is faulty.
•
Replace water spray
pump switch (F) or (R).
3. Water Spray Relay
(F) and (R)
(1) When starter switch is ON, measure voltage between
water spray relays terminal 1 inlet wire GB and chassis
ground.
Standard voltage: 12 V or more
(2) When starter switch is ON, measure voltage between
water spray relays terminal 3 inlet wire WB and chassis
ground.
Standard voltage: 12 V or more
(3) When starter switch is ON, measure voltage between
water spray relays terminal 5 outlet wire and chassis
ground.
Water spray relay (F): WL
Water spray relay (R): YR
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 (F) or (R).
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