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cat electric forklift

i have a cat m100b electric forklift when your operating the truck and you use the forks to go up the hyd pump goes into a high rpm and the only way to get it to come down is if you turn the key off we sent it out and cat can not figure it out they said nothing is wrong with it hahahaha wrongo!!!!!!!any help would be awesome
  • Posted 4 Mar 2016 07:24
  • By matt_n
  • joined 4 Mar'16 - 3 messages
  • Massachusetts, United States
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i was thinking the samething that it was a contact somewhere that wasnt working properly thank you bbforks im gonna dive into this and fix it after its been like this for yrs and yrs
  • Posted 4 Mar 2016 23:41
  • By matt_n
  • joined 4 Mar'16 - 3 messages
  • Massachusetts, United States
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Does this truck have old school contactors in the rear counterweight? I've seen the springs in the contactor assy's get weak & the current draw across the contact tips keeps the contactors engaged after the magnetism has gone away.

I've seen dealers (IMHO) not correct issues in the hope you'll trade in older units so they can give you scrap value for your lift
  • Posted 4 Mar 2016 13:04
  • Modified 4 Mar 2016 13:06 by poster
  • By bbforks
  • joined 1 Mar'12 - 1,437 messages
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
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In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.
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Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.