Sakai SW880-1, Shop Manual

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11-039
TROUBLESHOOTING
2-4-1. Engine will not start (Starter motor does not run) 8/17
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.
1) when display shows any error code
Reference Fig.: 2-4-1
Error code Check point Check/Cause Action
E31 or E32 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 wire wB and working controller (C1) ground
terminal 1 outlet wire B
Standard voltage : 12 V or more
(2) when starter switch is “ON” and speed change switch
is “ ”, measure current between propulsion pump
proportional solenoid terminal wires (positive side) and
B (ground side).
Propulsion pump proportional solenoid b (F)
wire G (positive side) and wire B (ground side)
Propulsion pump proportional solenoid a (R)
wire L (positive side) and wire B (ground side)
While measuring current, operate F-R lever from “N” to “F”
or “R”.
Standard current: 0 mA (“N”)
Standard current: 390 mA or more
(at vehicle start moving)
Standard current: 1,350 mA or less (“F” or “R”)
If item (1) is OK and item (2) is NG, traveling/working
controller is faulty.
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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.
If display does not change to vehicle speed, check
above items again.
In case of E31:
④
Move F-R lever in “F”.
Exact meter will still display vehicle speed. Machine is in
normal state.
If E31 is displayed again, check above items again.
In case of E32:
④
Move F-R lever in “R”.
Exact meter will still display vehicle speed. Machine is in
normal state.
If E32 is displayed again, check above items again.
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