Sakai SW880-1, Shop Manual

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11-131
TROUBLESHOOTING
2-6-1. No vibration occurs 2/3
F-R lever must be in “N”.
Parking brake switch must be released.
Set 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 4. Traveling/
Working
Controller
(1) when starter switch is ON, measure voltage between
traveling/working controller terminal wires and ground
terminal wire.
Traveling controller power supply terminal 2 inlet wire
WB and ground terminal 1 outlet wire B
working controller (C1) power supply terminal 2 inlet
wire WB and ground terminal 1 outlet wire B
working controller (C2) power supply terminal 11, 12
inlet wires wB and working controller (C1) ground
terminal 1 outlet wire B
Standard voltage : 12 V or more
(2) when starter switch is ON and measure current
between vibration pump proportional solenoid terminal
wires (positive side) and B (ground side).
Vibrator pump proportional solenoid a (Hi)
wire Lg (positive side) and wire B (ground side)
Vibrator pump proportional solenoid b (Lo)
wire Br (positive side) and wire B (ground side)
While measuring current, operate vibration frequency
select switch, vibration mode select switch and vibration
change switch as below.
Vibration mode select switch is “ ” (continuous mode)
and depress F-R lever vibration switch more than 0.05
second, vibration frequency select switch is 3000 vpm
and vibration change switch is “
” .
Standard current: Solenoid a (Hi): 960 mA
Solenoid b (Lo): 200 mA
Vibration mode select switch is “ ” (continuous mode)
and depress F-R lever vibration switch more than 0.05
second, vibration frequency select switch is 4000 vpm
and vibration change switch is “ ”.
Standard current: Solenoid a (Hi): 200 m
Solenoid b (Lo): 1150 mA
Vibration mode select switch is “ ” (Vibration is OFF)
Standard current: Solenoid a (Hi): 200 mA
Solenoid b (Lo): 200 mA
If item (1) is OK and item (2) is NG, traveling/working
controller is faulty.
(NOTICE)
Since current value is output in PWM, standard value
shown above represent a maximum instantaneous value.
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Replace traveling/
working controller.
5. Clearing
Error Code
and Judging
OK/NG after
Repair
①
when repair is complete, set starter switch to ON.
②
Place F-R lever “N”.
③
Exact meter will display vehicle speed. Machine is in
normal state.
If display does not change to vehicle speed, check
above items again.
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