2017.06.19 FwdMan2.8.17.docx 20-177
Error 654: PL was ACTIVATED
The PL (Plate Low) proximity switch was activated (i.e. Plate is NOT low!):
Possible causes:
The plate is NOT low (of course).
PL proximity switch defective.
P1 pressure switch defective or too sensitive.
- The length of raise plate cylinder shafts limits the depth of "below ground"
tests.
- Check that "PL" on Computer corresponds to PL LED in the Trailer.
- Check P1 adjustment.
Error 655: PL was NOT activated
The PL (Plate Low) proximity switch was not activated (which means that the
Plate WAS low!) on completion of the Raise Plate mode.
Possible causes:
PL proximity switch defective.
PL activator trouble.
- Check that "PL" on Computer corresponds to PL LED in the Trailer
- Check that the PL proximity switch is activated when the plate is raised.
Error 656: WH was ACTIVATED
The WH (Weight High) proximity switch was activated.
Possible causes:
WH switch defective.
Falling height stop No. 1 is misplaced.
Hydraulics malfunction.
- Check that "WH" on Computer corresponds to WH LED ON in the Trailer
- Lower falling height stop No. 1 (the uppermost hexagonal stop in the rail
on the falling weight).
- Check the Hydraulics, in particular the C Valve (refer to the Manual).
Error 657: WH was NOT activated
The WH (Weight High) proximity switch was NOT activated on completion of the
Raise Weight mode.
Possible causes:
WH switch defective.
Too great distance (clearance) between hexagonal stop and WH switch.
Hydraulics failure.
- Check that "WH" on Computer corresponds to WH LED ON in the Trailer.
- Check that clearance is less than 6 mm (1/4").
- Check that the hydraulic valves, the motor and the motor relay are powered
and functioning properly (refer to the Manual).
Error 658: TG was ACTIVATED
The TG (Trigger) proximity switch was activated (which means that the
weight was low) Prior to DROP.
Possible causes:
TG switch defective.
Falling height stop No. 1 is misplaced.
Hydraulics failure.
- Check that "TG" on Computer corresponds to TG LED ON in the Trailer
- Increase falling height No. 1 to at least 40 mm (1.5"), but no more than
100 mm (4").
- Check that the hydraulic valves, the motor and the motor relay are powered
and functioning properly (refer to the Manual).
Error 659: TG was NOT activated
The TG (Trigger) proximity switch was NOT activated (which means that the
weight was not low) Prior to Raise Weight.
Possible causes:
The weight WAS not low (of course).
TG activator trouble.
TG switch defective.
- Check the TG activator (located at bottom of the falling height stops rail).
NOTE that the Trigger MUST be activated as long as the weight is raised less
than 6 to 12 mm (1/4" to 1/2") !
- Check that "TG" on Computer corresponds to TG LED ON in the Trailer.
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