Sakai TW504 - Continuous Water Spray Works, but Auto Water Spray Does Not Operate

10-042
TROUBLESHOOTING
2-5-2. Continuous water spray works, but auto water spray does not operate
Water spray mode select switch must be “AUTO”.
F-R lever must be “F” or “R”.
Reference Fig.: 2-5-1
Check point Check/Cause Action
1. Water Spray Mode
Select Switch
(1) When starter switch is ON, measure voltage between
water spray mode select switch terminal 4 inlet wire GY
and chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
water spray mode select switch terminals and chassis
ground.
Except ROPS type : Terminal 5 outlet wire LW
ROPS type : Terminal 5 outlet wire P
If above item (1) is OK and item (2) is NG, water spray
mode select switch is faulty.
Replace water spray
mode select switch.
2. Water Spray Timer
(ROPS type)
(1) When starter switch is ON, measure voltage between
water spray timer terminal 1 and 3 inlet wire P and
chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
water spray timer terminal 4 outlet wire LW and chassis
ground.
Standard voltage : 12 V or more (Electricity ows for a
denite time.)
If above item (1) is OK and item (2) is NG, water spray
timer is faulty.
•
Replace water spray
timer.
3. 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.
•
•