1. Home
  2. Forums
  3. Technical Troubleshooting

Crown SP3020-30:
jerking/pulsing

I am having issues with jerking in forward and reverse. This only happens if you fully open the acceleration. If you start out slow and work your way gradually to full speed then it does not happen. Or after getting to a certain speed the jerking stops. I have been throwing parts at it off an old scrap 3020-30 truck that I have and had no luck. I have changed the POT, REC 3 & 4, TRANSISTOR, TRACTION CONTROL CARD, and CAPACITORS, but still have the same issue.

Any advice on where to go next?
  • Posted 16 Mar 2022 02:35
  • Discussion started by Busch
  • United States
Never assume, assumptions are the mother of all ****ups. -Busch-
Post a ReplyReport this post

Post your Reply

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.

Having trouble using the Discussion Forums? Contact us for help.

Terberg YT222
Terberg YT222 2020
Balling, Denmark
Used - Sale
Terberg TT222
Terberg TT222 2008
Balling, Denmark
Used - Sale
|

Showcased in the Virtual Expo

Last Week's Most Read
edition #1199 - 3 October 2024
Movers & Shakers
Juan Duarte Juan Duarte
Juan Duarte
executive president Latin America for the American Association of Port Authorities (AAPA), American Association of Port Authorities (AAPA)
Bobby Kehley
Regional sales manager for northeast region, BBi
Frank van Dijck
President, FEM
Brendan Bullard
vice president of sales for Clark North America, Clark North America
Latest job alerts …
Freight Coordinator
Louisville, Mississippi, United States
Scheduled Maintenance / Mechanic Trainee
Huntsville, Alabama, United States
Service Technician Forklift Mechanic
Louisville, KY, United States
Business Development Manager
Wetherill Park, Australia
View more jobs alerts
Hangcha CPCD30XW98F
Hangcha CPCD30XW98F 2021
Flesherton, Ontario, Canada
Used - Sale
TCM FHD105Z
TCM FHD105Z 1990
Yokohama, Japan
Used - Sale
|

PREMIUM business

Hangzhou Manforce Material Handling Equipment Co., Ltd
Specializing in Nichi and conventional forklift products, we create significant value for all our partners!
Hangzhou Manforce Material Handling Equipment Co., Ltd
Movers & Shakers
Juan Duarte Juan Duarte
Juan Duarte
executive president Latin America for the American Association of Port Authorities (AAPA), American Association of Port Authorities (AAPA)
Bobby Kehley
Regional sales manager for northeast region, BBi
Frank van Dijck
President, FEM
Brendan Bullard
vice president of sales for Clark North America, Clark North America
Your Focus
Stuart Taylor
Challenging three common myths about PPT safety
Stuart Taylor
Read blog
Global Industry News
edition #1200 - 10 October 2024
Today is World Mental Health Day, dedicated to raising awareness of mental health issues around the world... Continue reading
Fact of the week
In 2019, the nation of Iceland sued the supermarket chain named Iceland to have all its EU trademark registrations invalidated, and won.