Sakai SW354, Shop Manual

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10-032
TROUBLESHOOTING
2-4-1. No vibration occurs 2/2
F-R lever must be “F” or “R”.
Vibration mode select switch must be “AUTO” (automatic mode).
Reference Fig.: 2-4-1
Check point Check/Cause Action
4. Vibration Lo-Hi Change
Switch
(TW504)
(1) When starter switch is ON, measure voltage between
vibration Lo-Hi change switch terminal 1 inlet wire RL
and chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON and vibration Lo-Hi change
switch is “ ”, measure voltage between vibration Lo-
Hi change switch terminal 3 outlet wire LgR and chassis
ground.
Standard voltage : 12 V or more.
(3) When starter switch is ON and vibration Lo-Hi change
switch is “
”, measure voltage between vibration Lo-
Hi change switch terminal 2 outlet wire LgY and chassis
ground.
Standard voltage : 12 V or more.
If above item (1) is OK and item (2) or (3) is NG, vibration
Lo-Hi change switch is faulty.
•
Replace vibration Lo-Hi
change switch.
5. Vibrator Relay (1) When starter switch is ON, measure voltage between
vibrator relay terminal E inlet wire GY and chassis
ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
vibrator relay terminal G inlet wire BrY and chassis
ground.
Standard voltage : 12 V or more
(3) When starter switch is ON, check continuity between
vibrator relay terminal B inlet wire BrR and terminal D
outlet wire B.
There is continuity in normal condition.
If above items (1) and (2) are OK and item (3) is NG,
vibrator relay is faulty.
Replace vibrator relay.
6. F-R Lever Switch (1) When starter switch is ON, measure voltage between
F-R lever switch terminal inlet wire RY and chassis
ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
F-R lever switch terminal outlet wire GY and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, F-R lever
switch is faulty.
•
Replace F-R lever
switch.
7. 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.
•
•