Posted 6/6/2026 17:31 (#11667187) Subject: Case 4420 Boom functions no working
We have a 4420 that the boom functions stopped working. No up/down, back rack won’t raise. Won’t fold or unfold. We run a viper 4 and the “widgets” have turned gray on the run screen. Put a new node on and the back
Rack went up, right boom went up, left boom went in the dirt.
What are some things to look for now? Waiting for a tech guy to come out to help out.
Case 4420 Boom functions no working
