Sakai SV414, Shop Manual

Page: 251 / 294

9-036
TROUBLESHOOTING
2-4-2. Machine speed cannot be changed
Speed select switch must be “ ”.
Reference Fig.: 2-4-1
Check point Check/Cause Action
1. Speed Change
Solenoid (F)
Disconnect harness and measure resistance of coil.
Standard resistance : 12.3 ± 1.2 Ω
If measured resistance is abnormal, speed change
solenoid (F) is faulty.
•
•
Replace speed change
solenoid (F).
2. Speed Change
Solenoid (R)
Disconnect harness and measure resistance of coil.
Standard resistance : 5.1 Ω
If measured resistance is abnormal, speed change
solenoid (R) is faulty.
•
•
Replace speed change
solenoid (R).
3. Speed Select Switch (1) When starter switch is ON, measure voltage between
speed select switch terminal 1, 4 inlet wire L and
chassis ground.
Standard voltage : 12 V or more
(2) When starter switch is ON, measure voltage between
speed select switch terminal 3 outlet wire G and chassis
ground.
Standard voltage : 12 V or more
(3) When starter switch is ON, measure voltage between
speed select switch terminal 5 outlet wire LW and
chassis ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) or (3) is NG, speed
select switch is faulty.
•
Replace speed select
switch.
4. 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.
•