M816 Boom won't turn

[Marinawreckers]

Fired up one of the M816's today. It hadn't been used in awhile but worked fine when parked a month or two back. Anyway, the boom controls all work fine and everything works like it ought to, except that the boom will not turn in either direction. It sounds like the hydraulics are deadheading and the engine lugs, but it won't turn. We checked for obvious issues like obstructions, etc. Anyone have any ideas?

 

[73m819]

pull the swing motor, a little moisture can cause rust, then no go

 

[Floridianson]

Maybe turn table is binding. I might try and lightly pull it around and see if you can unjam it. Your car to end of boom maybe. Hit it with grease before and durinig if you can get it to move.

 

[Marinawreckers]

Thanks for the idea. I finally got around to looking at it and hooked on to the boom with one of the other wreckers. Freed up pretty easily. Did a little investigating and found the gearbox to be dry. Filled it up with Hi Vis gear lube and ran the boom back and forth awhile. Took the opportunity to grease the fittings and turntables on all 3 trucks. Thanks again.

 

[gimpyrobb]

Sounds about right 9-26 till 11-30. Thats about how long it took me to grease all the zerks on my wrecker the first time! (2 months)