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Clark ECS25 SCR Hydraulic controls

Serial #E357-0047-6865FB This is the high performance model. I lost hydraulics.Power steering OK.Everything seems to be OK.switches,fuses,wiring,etc..I can push in contactor and motor works.Also works when I tried to check continuity between #55 on contactor and # 50 on driver.It has new driver,rebuilt card and 1A contactor.I also tried #3 rec.I've gone thru schematic and found nothing that could be wrong.Any help would be graetly appreciated.
  • Posted 31 Jul 2012 11:36
  • By jim_k
  • joined 28 Aug'08 - 21 messages
  • California, United States
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Showing items 1 - 2 of 2 results.
hve had similar issues with hyster with pump card found it was #2 rec (handyman bench test did not reveil fault)
  • Posted 13 Oct 2012 02:41
  • By snowmonkey
  • joined 13 Oct'12 - 36 messages
  • Alberta, Canada
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Are you getting B+ to the contactor coil? The B- side is controlled by the card via the pump contactor driver. What is the BSOC? Is it possible you are in lift interrupt?
  • Posted 1 Aug 2012 07:03
  • By LTRM
  • joined 26 Jan'12 - 161 messages
  • Illinois, United States
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Fact of the week
The origin of "love" as the score zero in tennis is debated, but two main theories prevail. One suggests it's derived from the French word "l'oeuf" (egg) which resembles the shape of the number zero. The other proposes it's related to the Dutch word "lof" meaning "honour" as players might be playing for honour when scoreless.