Discussion:
Nissan CWP02L25S pump contactor arcing

Hey everyone
Having an issue with this machine. When we release a lever the pump contactor has a huge arc as it opens back up. Going through tips very fast. On forward tilt we get about 200 amps on reverse about 400 amps. We've checked the board, contactor, motor. Every thing seems fine. Has anyone had a similar problem? The serial number is CWP02-9C2982.

Thank you
  • Posted 1 Sep 2011 21:20
  • By justinm
  • joined 13 Apr'06 - 604 messages
  • New York, United States
New York, New York its a heluva town..you know that The Bronx is up..and I'm Brooklyn down
Showing items 1 - 2 of 2 results.
Thank you MEng. I will check all that on Tuesday. We checked the motor but didn't service it. The commutator looks clean. I will get the rest and let you know.
  • Posted 4 Sep 2011 01:39
  • By justinm
  • joined 13 Apr'06 - 604 messages
  • New York, United States
New York, New York its a heluva town..you know that The Bronx is up..and I'm Brooklyn down
Justin;
According to the s/n you have given we are looking at a Nissan PE50Y with mast m/n N3F475 and a Cascade SS 55FSSA071. The long model no. would be CWPO2L26SV that was produced Sept 2000 and had a second generation GE pump motor p/n 29110-8G200. Would you go into the program menu of the truck and tell me what you see in Windows 170,180, and 190. Has any work been done on the pump motor? Has the lift mast been damaged? Have you had any service brake issues? Have any control valve switches been serviced? What hyd pres are occurring under unloaded and fully loaded FWR and REV tilt and lift? What is the amount of current for each of the previous actions?
  • Posted 2 Sep 2011 01:25
  • By MEngr
  • joined 15 Jan'11 - 247 messages
  • Missouri, United States

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