Liebherr 631B Crawler Loader Hydraulic question

   / Liebherr 631B Crawler Loader Hydraulic question #1  

Yehusha

New member
Joined
May 24, 2025
Messages
3
Tractor
Liebherr 631B, JD 110, Case TR310, Terex 5519
Hello,
I recently purchased a Liebherr 631B that runs fine but it needed new batteries, so I put a new set in and assumed that the switch solenoid was the positive cable, of course it wasn't, which I discovered after some smoke and sparks when I turned the ignition switch on. I melted out a 10 gauge wire that runs to the alternator and starter by the time I got the battery cable off but otherwise things seem fine. Now my loader hydraulics don't work, I can cycle the two loader valve solenoids on the right side under the loader arm by running power to them but the hydraulics still don't run. The loader drives but I can't get the loader activated. I'm not seeing any other solenoids that might be connected. Has anyone had anything similar happen?
Thanks,
 

Tractor & Equipment Auctions

6' LANDSCAPE RAKE, 3PT (A52708)
6' LANDSCAPE RAKE...
2015 Chevrolet Silverado (A56858)
2015 Chevrolet...
2016 Ford Fusion Sedan (A55758)
2016 Ford Fusion...
2020 DRAGON ESP 150BBL ALUMINUM (A58214)
2020 DRAGON ESP...
1985 Allmand Max Lite III LD30-3CE S/A Towable Light Tower (A55973)
1985 Allmand Max...
2014 VOLVO VNL DAYCAB (A58214)
2014 VOLVO VNL...
 
Top