11-091
TROUBLESHOOTING
2-5-3. Machine moves neither forward nor backward 1/6
Parking brake switch must be released.
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.: 2-5-1
Error code
Check point
Check/Cause
Action
Pon
1. Connector
Check forward switch connector, reverse switch connector
and traveling controller connector terminal 19, 20, working
controller (C1) connector terminal 10, 11 for corrosion,
breakage, bending and looseness.
If any abnormality is found, connector is faulty.
•
•
Replace connector
or terminal.
2. Harness
(1) Measure resistances between switches and traveling
controller terminal wires.
Forward switch terminal NC wire Bw and traveling
controller terminal 19 wire Bw, working controller (C1)
terminal 10 wire BW
Reverse switch terminal NC wire Gr and traveling
controller terminal 20 wire Gr, working controller (C1)
terminal 11 wire Gr
Standard resistance : 10 Ω or less
(2) Measure resistances between switches and fuse box
terminal wires.
Forward switch terminal COM wire wL and fuse box
terminal 6 wire WL
Reverse switch terminal COM wire wG and fuse box
terminal 5 wire WG
Standard resistance : 10 Ω or less
If resistance is abnormal, harness is faulty.
•
•
•
•
•
Repair or replace
harness.
3. Forward
Switch
when starter switch is OFF and F-R lever is “N”, check
continuity between forward switch terminal COM and
terminal NC.
There is continuity in normal condition.
If there is no continuity, forward switch is faulty.
•
•
Replace forward
switch.
4. Reverse
Switch
when starter switch is OFF and F-R lever is “N”, check
continuity between reverse switch terminal COM and
terminal NC.
There is continuity in normal condition.
If there is no continuity, reverse switch is faulty.
•
•
Replace reverse
switch.
5. Traveling/
Working
Controller
If error code Pon is displayed and no abnormality is found
in connector, harness, forward switch and reverse switch
in above inspection, traveling/working controller is faulty.
•
Replace traveling/
working controller.
6. Clearing
Error Code
and Judging
OK/NG after
Repair
①
When repair is complete, place F-R lever “F” or “N”.
②
Set starter switch to ON.
③
When F-R lever is “F” or “N”, traveling/working controller
cannot be initialized. Exact meter will continuously
display Pon.
④
Return F-R lever to “N”.
⑤
When traveling/working controller initialization is
completed, display will change from Pon to vehicle
speed. Machine is in normal state.
•
•
•
Содержание SW880-1
Страница 1: ...SW880 1 990 1 SHOP MANUAL 3498 6568A 0 ...
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Страница 15: ...SAFETY ...
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Страница 25: ...SPECIFICATIONS ...
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Страница 39: ...ENGINE AND CONTROLS ...
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Страница 47: ...HYDRAULIC SYSTEMS ...
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Страница 83: ...ELECTRICAL SYSTEM ...
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Страница 125: ...VIBRATORY DRUM ...
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Страница 171: ...BRAKE ...
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Страница 175: ...OPERATOR STATION ...
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Страница 179: ...WATER SPRAY SYSTEM ...
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Страница 183: ...INSPECTION AND ADJUSTMENT ...
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Страница 209: ...TROUBLESHOOTING ...
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