Crown PE 4000:
PE4000 wont lift or travel

working on a Crown PE 4000- S# 6A259698 that wont lift or travel. I dont see any codes, the Battery is good and the unit seems to turn on and the motor controller does have a heartbeat. When the handle is pulled down the line contactor does not close and there is no control power going to it. when the lift switch is activated there is no control power going to the lift solenoid. I am thinking there is a broken wire maybe at the tiller arm bend. Im hoping someone has a wire diagram. Thanks in advance for the help.
  • Posted 15 Feb 2018 13:32
  • Discussion started by Jesky71
  • California, United States
Showing items 1 - 12 of 12 results.
I would start by making sure you have more than 20 volts. Then check and make sure FU2 is not blown or the holder not faulty. Check CA404 plug on the controller and make sure all pins are good.
  • Posted 19 Nov 2021 14:25
  • Reply by 1CrownTech
  • Washington, United States
If naval aviation were easy, we'd let the Air Force do it!
1crowntechnician@gmail.com
Q tal buenos dias
Tu ayuda tengo problemas con el sistema eléctrico, tendrás el es que
Saludos
  • Posted 19 Nov 2021 06:40
  • Reply by Carlos_Gomez
  • GUAYAS, Ecuador
Carlos Gomez
Yes sir you might check to see if it has battery retainer switches sometimes they go bad or the wiring to them can get damaged. This will cause no travel.
  • Posted 22 Aug 2019 23:51
  • Modified 22 Aug 2019 23:52 by poster
  • Reply by BarryMar
  • Texas, United States
I work on Turret trucks..
@Yidneck Good point! Been awhile since I've had my hands on an older truck. That being said... Probably need to check, load sensor (transducer), HSS, Accel POT... Then from there controller (settings) and/or trac motor/trac motor brushes.
  • Posted 17 Jul 2019 00:35
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.
PE4000 needs a Curtis handset. No buttons for operators to mess with unless it's the 4500
  • Posted 16 Jul 2019 23:51
  • Reply by Yidneck
  • N.Y.
Did the performance level get changed to P2 or P3? Pretty common when drivers start pushing buttons not knowing what they are doing!
  • Posted 16 Jul 2019 22:38
  • Modified 16 Jul 2019 22:39 by poster
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.
I have a pe4000-60 and everything works but it is like someone turned the speed way down. Is there a way to turn it up? If so how?
  • Posted 16 Jul 2019 21:07
  • Reply by troy_a
  • Arkansas, United States
Does this machine have a curtis controller? Do you have a handset/programmer to plug into it?
  • Posted 1 Mar 2018 09:00
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.
Yes I checked both fwd/Rev switches. Checked wiring going from handle to motor controller. All ok. I also removed the pot to try and center it and still shows the code 22. Like I was saying the pot will not zero out at neutral it only goes as low as.254 volts. So I'm going to try another pot to see if that does it. The dead man switch is ok also. Unit has a mechanical brake.
  • Posted 1 Mar 2018 07:11
  • Reply by Jesky71
  • California, United States
Fault code 22 is an SRO event. Normally a out of sequence situation
Have you checked your FWD & REV switches? Brake switch? Also check harness at pinch point(s).
  • Posted 1 Mar 2018 00:47
  • Modified 1 Mar 2018 00:48 by poster
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.
Ok so after tapping lift solenoid it Now lifts but no travel. It's showing a code 22 on motor controller. I checked Forward switch and reverse switch and both ok, not stuck. I have 5 volts at pot and in neutral the brown signal wire shows.254 volt. It changes up to almost 5 volts as you move pot forward and reverse so there is a signal. Should pot show 0 volts at neutral? Also all wiring is ok from handle to controller. I also tried to adjust pot and no change. Im thinking either the pot or motor controller is defective. Also at contactor there's 24 volts and negative wire to controller is also ok. Controller won't activate contactor. What's missing?
  • Posted 28 Feb 2018 09:31
  • Modified 28 Feb 2018 12:01 by poster
  • Reply by Jesky71
  • California, United States
Is your lift sol welded? Give it a couple good taps with a wrench or small hammer with power off. Then try power up and function test.
  • Posted 21 Feb 2018 08:23
  • Reply by chevotaman
  • Washington, United States
It's all just nuts n' bolts.

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