spent a lot of time on this clark EC500-40, E355-68-1572.
now get to a point that panel is good tested on bench. new pot.
manually pushed in A1 with either fwd or rev, drive ok
when use pedal, fwd/rev contactors sucked in but no drive.
does anyone have any ideas?
Showing items 1 - 10 of 10 results.
do you have circuit diagram for this folklift? i need i so bad for the problem on steering pump. thank you
Is the small 1/4 amp fuse blown?
#29 to panel has no volt. (contactor in or not)
What voltage do you have on wire #29 going to the control card? It should read about 4 to 5 VDC and slowly go to 0 VDC when the accelerator is depressed.
wire from pot to controller already been checked. and meanwhile contactors do *** in but just no drive.
negative comes through the recs or controllers (the chopper panel), the wire from the pot to the controller may be the problem
when A1 pushed in maunally, it drives.
since A1 is negative, it seems to me the drive motor is missing a negative, what would cause this.
Sounds like either a faulty accelerator pot circuit,or a faulty SCR control card.
tech,
when key on, steer pump on, contactor *** in, don't notice SCR any hum.
Do you have any SCR hum, when the directional contactors close?
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