Discussion:
Crown SP3020-30 S/N 1A193673 Travel issues

We have a Crown SP3020 that is having travel issues. The drive wheel barely turns under full throttle and sometimes will not start at all. No codes. I checked the accel voltages at the EV100 ZX board and they are within spec. I also checked all three of the height switches at the distribution board, all were good, I thought maybe one of them could be bad and limiting travel speed. The only codes stored in the system were 208 and 217 both relating to a bad steer motor and steer encoder, both of them have been replaced and seem to be working fine, dash leds and wheel alignment are correct. Unfortunately our service terminal is not working correctly so I can not plug into the system check anything. Any help would be greatly appreciated.
  • Posted 6 Apr 2016 01:46
  • By RAFARMER
  • joined 17 Jan'12 - 153 messages
  • Texas, United States
rafarmerjr@gmail.com
Showing items 1 - 2 of 2 results.
These things have an awesome tendency of flicking brake dust towards the dist. panel connectors causing the speed pot readings to go low (higher resistance), especially when opers. like to ride the e-brake. Newer 3450s will scream 342 most of the time, older ones do not. Keep an eye on that and props for actually posting the progress and results as not too many people do i see.
  • Posted 16 Apr 2016 18:19
  • By FieldTech
  • joined 16 Apr'16 - 4 messages
  • Ontario, Canada
The problem was in the SCR system and as I had a parts truck handy I pulled the whole EV100ZX system out and replaced it, all good. when I get a chance I will pull the old system apart and test to find out what component failed and post here.
  • Posted 8 Apr 2016 03:09
  • By RAFARMER
  • joined 17 Jan'12 - 153 messages
  • Texas, United States
rafarmerjr@gmail.com

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