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.
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.