Discussion:
Crown SC30 drive fault.

Hi guys.
I've got a customer with an SC30 3 wheel counter balance fork. It drives fine while on a flat surface but when driving up ramps with a load on, it is very slow. The unit will also not move on the ramp from a standing start. when checking the battery voltage at this time it only drops a few volts so it isn't like the motors are under huge load. Is it just a matter of opening the drive controller and adjusting the current pot (i)? Thanks for your time.
Matt.
  • Posted 17 Oct 2008 07:38
  • Discussion started by BEST
  • New South Wales, Australia
Showing items 1 - 6 of 6 results.
another thing to remember the manufacturer of the Zappi panel reduced the current limit on these panels and they are slow going up ramps
  • Posted 20 Oct 2008 16:03
  • Reply by crownie
  • Victoria, Australia
OK SC3018 is a good model number, most likely cause switch on brake pedal out of adjustment (Brake adjustment will raise the pedal)
  • Posted 20 Oct 2008 16:00
  • Reply by crownie
  • Victoria, Australia
Pretty sure the model is an SC3018. It is a 1998 model. Not sure what the controller is but it is silver and about 2 foot long and mounts in between the battery and the counterbalance. It looks like a curtis controller with the 4 tabs for the power connections.
  • Posted 19 Oct 2008 20:01
  • Reply by BEST
  • New South Wales, Australia
with the battery pretty much fully charged, but run around for 10 minutes [to remove what I call the "surface charge], what is the battery voltage, both at rest, (with no load on the electrical system), and under hydraulic stall for 3 seconds, (tilt back until the cylinder dead-ends, then hold the hydraulic tilt control handle back 3 more seconds). a difference of more than 10% indicates a battery that would cause the effect you describe. the battery does not have cohones to work the ramp any more...
the hydraulic stall test puts _much_ more load on the battery for this test than driving, even up a ramp.
  • Posted 18 Oct 2008 07:26
  • Modified 18 Oct 2008 07:29 by poster
  • Reply by edward_t
  • South Carolina, United States
Hello! what type of controller does it has?
  • Posted 18 Oct 2008 03:13
  • Reply by silvio
  • buenos aires, Argentina
EMAIL silvio_jorge@hotmaildotcom
Bit more info please model "SC30" is not an accurate model. what model and which scr drive system
  • Posted 17 Oct 2008 17:03
  • Reply by crownie
  • Victoria, Australia

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