Discussion:
Crown sp 3500

I'm working on a Crown SP 3500 ac drive truck. It intermittetly slows down to a crawl once or twice a week for maybe 10 seconds then goes back to normal speed. Platform is all the way lowered when this happens and moving the throttle handle doesn't effect speed. There are no height switches on this truck ,it has a height encoder. No codes are registered when the truck is moving slow. Any one have any ideas? Thanks.
  • Posted 6 Sep 2009 12:38
  • By amxjavman
  • joined 3 Sep'09 - 9 messages
  • Wisconsin, United States
Showing items 1 - 6 of 6 results.
The speed on the sp 3500 stock picker is set to 3.4 which is incredibly slow , the access code (2311) is invalid. Is there another code that could enable me to change the speed?
  • Posted 11 May 2016 22:50
  • By Manmaderae
  • joined 11 May'16 - 1 message
  • Maryland, United States
Maximum speed on the SP3500 AC Drive is 7.5MPH, you will go through alot of load wheels and drive tires at this speed...
  • Posted 28 May 2015 03:01
  • By Mercanyin
  • joined 6 Sep'14 - 23 messages
  • Arizona, United States
I work with a crown sp 3500, and I was curious as to how I can improve the speed of my truck, right now its going 7.5 mph I would like to know whats the maximum speed. thanks
  • Posted 31 May 2013 10:12
  • By charlesbarkley
  • joined 31 May'13 - 1 message
  • California, United States
when goes into crawl does it give you any tones or beeps??
  • Posted 9 Jun 2011 23:53
  • By juan_s
  • joined 31 Dec'10 - 1 message
  • Arizona, United States
Found the problem. The pot would intermittently lose.5-1.0 v while going forward for a couple of seconds, then go back to normal volts. Swapped it out and truck runs great. Thanks for the help.
  • Posted 18 Sep 2009 19:18
  • By amxjavman
  • joined 3 Sep'09 - 9 messages
  • Wisconsin, United States
Go into the SERVICE menu level 2,enter the password(2311) and go to ANALIIZER menu. Select A2.3.3 and look at the Accelerator POT voltage reading while operating the travel at full throttle. Make sure the POT isn't turning to far past it's sweep.
  • Posted 7 Sep 2009 01:27
  • By Truck_Tech
  • joined 30 Mar'07 - 152 messages
  • United States

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.

Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Latest job alerts …
Evansville, IN, United States
Uxbridge, Canada
Daleville, IN, United States
St. Louis, MO, United States
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Upcoming industry events …
July 9-10, 2025 - Birmingham, United Kingdom
October 21-23, 2025 - Panama City, Panama
Global Industry News
edition #1236 - 26 June 2025
As June comes to a close, the month when our sector recognises National Forklift Safety Day , the United Kingdom’s Association of Industrial Truck Trainers (AITT) has issued a timely reminder of the need to ensure any staff training is fully accredited... Continue reading
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