Sakai SW880-1, Shop Manual

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TROUBLESHOOTING
2-6. Vibration
Check following items before troubleshooting.
No blown fuses and power is applied up to fuses.
when measuring voltage and current without disconnecting connectors, refer to “Measuring voltage and current
flowing using tester” (P.11-006 to P.11-008).
Check any ground circuit which belongs to components to be checked.
Engine check lamp must not be lighting. If engine check lamp lights, refer to “Service information” of engine
manufacturer.
Throttle switch to “FULL”.
2-6-1. No vibration occurs 1/3
F-R lever must be in “N”.
Parking brake switch must be released.
Vibration mode select switch to
“ ”
(continuous mode).
Check whether exact meter multiple display shows any error code.
1) when display shows any error code
Reference Fig.: 2-6-1
Error code Check point Check/Cause Action
E33 or E34 1. Connector Check vibrator pump proportional solenoid connector
and working controller (C2) connector terminal 5, 6 for
corrosion, breakage, bending and looseness.
If any abnormality is found, connector is faulty.
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Replace connector
or terminal.
2. Harness Measure resistances between vibrator pump proportional
solenoid and working controller (C2) terminal wires.
Vibrator pump proportional solenoid b (Lo) wire Br and
working controller (C2) terminal 5 wire Br
Vibrator pump proportional solenoid a (Hi) wire Lg and
working controller (C2) terminal 6 wire Lg
Standard resistance : 10 Ω or less
If resistance is abnormal, harness is faulty.
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Replace harness.
3. Vibrator Pump
Proportional
Solenoid a
(Hi), b (Lo)
(1) Disconnect harness and measure resistance of coils.
Standard resistance: 5.5 Ω
(2) Check vibrator pump proportional solenoid a (Hi) and b
(Lo) terminal wire B is grounded.
If above item (1) or (2) is NG, vibrator pump proportional
solenoid a (Hi) or b (Lo) is faulty.
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Replace vibrator
pump proportional
solenoid
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