Hey all my 410 has lost control to boom hand control, I "think" it may be a mechanical linkage problem. As hand control just flops around. Although i can still drive the machine normally, no lift or lower function of any kind. I pulled the inspection plate sitting directly behind drivers calves. I can sort of feel that long linkage bar feels like it's sort of loose, and the far end may be flopping loose. Hopefully it's something simple like that... My question is, how can I manually raise the boom to gain access to flipping cab forward? I've strung chain between two trees and using a large come-along I've been trying to raise it that way, but all it does it lift the entire machine. Boom locks? I've also tried pulling up on the boom lock cable with engine running and dead. Same thing, it just picks the entire machine up! My guess is I need to crack hydraulic lines on boom lift cylinders? Or am I headed wrong direction here? Is there an easy place to crack the lines of this is correct procedure?
