Sakai SW880-1, Shop Manual

Page: 389 / 428

11-179
TROUBLESHOOTING
2-8-2. Continuous water spray works, but intermittent water spray does not operate 1/2
Water spray mode select switch must be “ ”.
Water spray timer switch must be “ I ”.
Set water spray pump switch to “PUMP 2”.
Reference Fig. : 2-8-1
Check point Check/Cause Action
1. Water Spray Timer (1) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray timer terminal 1, 3 inlet wires G and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray timer terminal 4 outlet wire GB and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG with no
abnormality found in grounding of water spray timer, water
spray timer is faulty.
•
Replace water spray
timer.
2. Water Spray Timer
Switch
(1) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray timer switch terminal 2 inlet wire GL and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray timer switch terminal 3 outlet wire G and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, water spray
timer switch is faulty.
•
Replace water spray
timer switch.
3. water Spray Pump
(F, 2)
(1) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray pump relay (F, 2) terminal 1 inlet wire G and
chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray pump relay (F, 2) terminal 5 inlet wire Lw and
chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON and depress F-R lever water
spray switch once, measure voltage between water
spray pump relay (F, 2) terminal 3 outlet wire Gw and
chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) is NG,
water spray pump (F, 2) is faulty.
•
Replace water spray
pump (F, 2).
•
•
•