Sakai SV400D-2, Руководство по ремонту

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9-007
ELECTRICAL SYSTEM TROUBLESHOOTING
2-2. Engine
Check the following items before troubleshooting.
Forward/reverse lever is in “neutral” position.
No fuse blew.
2-2-1. Engine will not start (starter motor does not run)
Reference Fig. : 2-2
Check point Check/Cause Action
1. Battery Capacity
- Measure battery voltage or specific gravity.
Standard voltage: 12 V or more
Standard specific gravity: 1.26 or more
- If the measured value is below the standard one, the battery is
weak.
Charge or replace
the battery.
2. Starter Switch - Check continuity between and according to starter switch
connection table.
The switch is OK if there is continuity between the connections
- of all switch positions.
- If continuity is abnormal, the starter switch is faulty.
Replace the
starter switch.
3. Starter Motor (1) When starting starter switch, measure voltage between starter
motor pin 30 and chassis ground.
Standard voltage: 12 V or more
(2) When starting starter switch, measure voltage between starter
motor pin 50 and chassis ground.
Standard voltage: 12 V or more
- If the starter motor does not run even though above items (1) and (2)
are OK, the motor is faulty.
Replace the
starter motor.
4. Starter Relay (1) When turning starter switch ON, measure voltage between starter
relay pin 2 inlet RB wire and chassis ground.
Standard voltage: 12 V or more
(2) When starting starter switch, measure voltage between starter
relay pin A
1
inlet W wire and chassis ground.
Standard voltage: 12 V or more
- If above item (1) and (2) are OK and electricity does not flow
through starter relay pin 1 inlet W wire, the starter relay switch is
faulty.
Replace the
starter relay.
5. Battery Relay (1) When turning starter switch OFF, measure voltage between
battery relay primary terminal and chassis ground.
Standard voltage: 12 V or more
(2) When turning starter switch ON, measure voltage between battery
relay BR wire terminal and chassis ground.
Standard voltage: 12 V or more
- If above items (1) and (2) are OK and the battery relay switching
click does not sound when the starter switch is turned ON, the
battery relay is faulty.
Replace the
battery relay.
6. F-R Lever Switch
(Neutral Start
Switch)
- Check continuity between F-R lever switch COM terminal and NC
terminal with forward/reverse lever in neutral and with starter switch
OFF.
- Continuity present indicates normal condition. If there is no
continuity, the F-R lever switch is faulty.
Replace the F-R
lever switch.
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