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JLG 40H lost bang bang controls in platform

Discussion in 'Forklifts/Telehandlers' started by excavator, Jan 7, 2020.

  1. excavator

    excavator Senior Member

    Joined:
    Oct 16, 2006
    Messages:
    934
    Location:
    Pacific North West
    I'm working on a JLG 40H w an Lrg 425 engine that lost all bang bang controls ( basket rotate, telescope, level & steer) in the basket. They work fine from the ground control panel and all the proportional controls ( drive, swing & lift) work fine in the basket. Where do the select relays (R2 & R3) get power from when in platform mode? Thanks in advance for any thoughts or ideas.
     
  2. excavator

    excavator Senior Member

    Joined:
    Oct 16, 2006
    Messages:
    934
    Location:
    Pacific North West
    I got it figured out, found a broken wire in the boom harness. The problem I was having is the wire schematic I have is a very poor copy from JLG and the platform terminal strip is virtually unreadable. I went online and blew it up to read. Thanks.