Failure Code [Dbl0Kt] (Non-Volatile Memory Write Error) - Komatsu WA900-3E0 Shop Manual

Troubleshooting by failure code

Failure code [DBL0KT] (Non-volatile memory write error)

Failure code [DBL0KT] (Non-volatile memory write error)

Action level Failure code
E01 DBLOKT
When power ladder controller starts, controller reads out data different from that to be written into
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Detail of failure
its internal memory.
Action of con-
Substitutes default data for calibrated data of storage and boarding positions.
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troller
Even if ladder is stored in position, parking brake interlock may function since controller does not
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recognize that ladder is in storage position.
Since ladder deceleration area before storage position is changed, ladder may not decelerate or
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Problem on
longer time is required for ladder to reach storage position due to widened ladder deceleration area.
machine
Since ladder deceleration area before boarding position is changed, ladder may not decelerate or
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longer time is required for ladder to reach boarding position due to widened ladder deceleration ar-
ea.
Calibration must be performed again by continuing ladder RAISE operation beyond default storage
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Related infor- position.
mation Calibration must be performed again by continuing ladder LOWER operation beyond default board-
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ing position.
No. Cause
1 Defective power ladder controller
40-26
Failure Non-volatile memory write error
Procedure, measuring location, criteria and remarks
Power ladder controller may be defective.
(Since this is an internal defect, troubleshooting cannot be performed.)
4 0 - 2 6
WA900-3E0