Discussion:
no forward or reverse travel no contactor pull in

unit will not travel forward or reverse contactor no attempt to pull in ev 1 system any help greatly apreciatted
  • Posted 12 Feb 2009 09:30
  • By rick_o
  • joined 7 Nov'08 - 33 messages
  • Pennsylvania, United States
Showing items 1 - 5 of 5 results.
recent trucks (like since 1996) have a pulsed signal to hold the contactors, as it takes much less current to hold then to pull in. the voltage you read may be the pulsed average.
just a suggestion, (for foothill) but starting a new thread for a new question on a differnet truck may get you a more clear answer.
I am pretty sure that ev1, which was in the original posters truck, did NOT have a pulsed signal to the contactors, and if you have a truck that old, then I would be asking about where you had the meter's leads connected.
slow contactor operation may well be because of the insulation/guides having worn groves where the moving tip rubs.
  • Posted 9 Dec 2012 07:06
  • Modified 10 Dec 2012 00:22 by poster
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"
I only have 11volts at forward and reverse contactor coils.
I'm sure this is supposed to be batt. Voltage?

Still operates but forward contactor pulls in slow. (Not fast and snappy as reverse). And occasionally forward does not pull all the way.

Any ideas on most likely reason contractors have reduced voltage?
Thanks.
  • Posted 9 Dec 2012 05:40
  • By FootHill
  • joined 9 Dec'12 - 14 messages
  • California, United States
Be safe out there!
Pmslift@aol.com
brake switch at motor continuity ok but would not carry current, replaced both foot switch and motor brake switch operates great
thanks for input
  • Posted 13 Feb 2009 06:49
  • By rick_o
  • joined 7 Nov'08 - 33 messages
  • Pennsylvania, United States
Definite control problem, check inputs to card (TB-11) Possible brake or directional switch input
  • Posted 13 Feb 2009 00:32
  • By joe_y
  • joined 13 Feb'09 - 1 message
  • Washington, United States
I had a problem with the bottom foot switch. also check wiring to control system.
  • Posted 12 Feb 2009 23:46
  • By Prentice
  • joined 25 Jun'08 - 600 messages
  • Ontario, Canada

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Wellwit WMF1000
Shenzhen, Guangdong, China
New - Sale
USD50,000
Taylor XC300M
Morgantown, Pennsylvania, United States
New - Sale & Hire

PREMIUM business

Shenzhen Wellwit Robotics Co., Ltd
The Largest AMR/AGV ODM/OEM Manufacturer in China.
Movers & Shakers
Jeannette Walker Jeannette Walker
CEO, MHEDA
President, European Rental Association (ERA)
Chief marketing officer, JLT Mobile Computers
Chief executive officer, East Penn Manufacturing
Manitou MH25-4
Braeside, Melbourne, Victoria, Australia
Hire
Taylor TT300
Morgantown, Pennsylvania, United States
Used - Sale & Hire
USD98,500
Fact of the week
The use of "hello" as a telephone greeting is attributed to Thomas Edison. He is said to have suggested it as a simpler alternative to other greetings, such as "Do I get you?" or "Are you there?".