Discussion:
Trouble diagnosing the issue

We have a couple pallet jacks that tend to code out after turning too much, one does it consistently both directions and another does it when turning left. After restarting the jack it works fine, until it turns and codes again. If anyone has insight on what would cause problems like this it would be greatly appreciated, thank you.
  • Posted 22 Mar 2022 01:30
  • By Jake_Powell
  • joined 22 Mar'22 - 8 messages
  • Washington, United States
Showing items 1 - 5 of 5 results.
Check the wires as they pass through at the joint where tiller meets the drive unit, some people call it the knuckle , most of the times you'll find a broken wire there , they could also be broken inside the insulation hidden to the eye so sometimes pulling on them will show the broken one stretch more than one that is not broken.
  • Posted 4 Jul 2022 14:41
  • By PalletjacksRus
  • joined 10 May'22 - 3 messages
  • United States
PJS
Thank you, i will have to check that out on monday when i go in. Ive taken the handles apart before to change out a couple things here and there, so I understand what youre talking about. And ill check what the code is, i cant remember what it is at the moment but again thank you for your help.
  • Posted 2 Apr 2022 07:10
  • By Jake_Powell
  • joined 22 Mar'22 - 8 messages
  • Washington, United States
PS: Take a good look at the handle harness where it passes around the return spring.
  • Posted 2 Apr 2022 02:02
  • By ErichO
  • joined 26 Oct'21 - 83 messages
  • Washington, United States
Alot depends on the codes. But with any that fail when turning and since they are 7 series, I assume a fair amount of hours. I'm 99% sure your issue is under the handle. When you remove the handle assy, not just the stem, you will find that there are control harness wires that have rubbed through to the frame. The insulation on those wires is very soft. It only takes one little strand to poke through to cause issues. So if it isn't obvious, you'll need to inspect carefully.
Removal is best accomplished by removing the arm angle switch bracket before disconnection wires from switches. 1 harness plug and 3 allen socket bolts and the handle assy lifts off.
  • Posted 2 Apr 2022 02:01
  • By ErichO
  • joined 26 Oct'21 - 83 messages
  • Washington, United States
Alot depends on the codes. But with any that fail when turning and since they are 7 series, I assume a fair amount of hours. I'm 99% sure your issue is under the handle. When you remove the handle assy, not just the stem, you will find that there are control harness wires that have rubbed through to the frame. The insulation on those wires is very soft. It only takes one little strand to poke through to cause issues. So if it isn't obvious, you'll need to inspect carefully.
Removal is best accomplished by removing the arm angle switch bracket before disconnection wires from switches. 1 harness plug and 3 allen socket bolts and the handle assy lifts off.
  • Posted 2 Apr 2022 01:59
  • By ErichO
  • joined 26 Oct'21 - 83 messages
  • Washington, 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.

Global Industry News
edition #1239 - 17 July 2025
As part of Forkliftaction’s 25th anniversary celebrations, we have dug into the archive and, over the next year, will be highlighting a carefully curated selection of historical stories we have published over this time... Continue reading
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.
Global Industry News
edition #1239 - 17 July 2025
As part of Forkliftaction’s 25th anniversary celebrations, we have dug into the archive and, over the next year, will be highlighting a carefully curated selection of historical stories we have published over this time... Continue reading
Upcoming industry events …
October 8-9, 2025 - Twickenham, United Kingdom
October 21-23, 2025 - Panama City, Panama
November 11-13, 2025 - Singapore, Singapore
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.
Latest job alerts …
Movers & Shakers
Mike Barker Mike Barker
President and CEO Swisslog Americas, Swisslog
Vice president, Newgentech Material Handling India
Sales representative, Alabama and Panama City, Thompson Lift Truck
Chief marketing officer, Bobcat Company