Sakai SW880-1, Shop Manual

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11-053
TROUBLESHOOTING
2-4-1. Engine will not start (Starter motor does not run) 15/17
F-R lever must be in “N”.
Parking brake switch must be applied.
Foot brake switch must be ON (Brake pedal is not depressed).
Check whether exact meter multiple display shows any error code.
2) when display shows no error code
Reference Fig.: 2-4-1
Check point Check/Cause Action
6. Forward Switch (1) when starter switch is ON, measure voltage between
forward switch terminal COM inlet wire wL and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, measure voltage between
forward switch terminal NC outlet wire Bw and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, forward switch
is faulty.
•
Replace forward switch.
7. Reverse Switch (1) when starter switch is ON, measure voltage between
reverse switch terminal COM inlet wire wG and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, measure voltage between
reverse switch terminal NC outlet wire Gr and chassis
ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) is NG, reverse switch
is faulty.
•
Replace reverse switch.
8. Interlock Relay (1) when starter switch is ON, measure voltage between
interlock relay terminal 1 inlet wire Gr and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, measure voltage between
interlock relay terminal 3 inlet wire BW and chassis
ground.
Standard voltage : 12 V or more
(3) when starter switch is ON, measure voltage between
interlock relay terminal 5 outlet wire P and chassis
ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) is NG,
interlock relay is faulty.
•
Replace interlock relay.
9. Starter Motor Relay (1) when starter switch is ON, measure voltage between
starter motor relay terminal 1 inlet wire P and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is START, measure voltage
between Starter motor relay terminal 3 inlet wire LB and
chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is START, measure voltage
between starter motor relay terminal 5 outlet wire Y and
chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) is NG,
starter motor relay is faulty.
•
Replace starter motor
relay.
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