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

2024 CATERPILLAR 255 SKID STEER (A52709)
2024 CATERPILLAR...
(20) WOOD PALLETS (A60432)
(20) WOOD PALLETS...
Honda EM3500S Portable Gasoline Generator (A59228)
Honda EM3500S...
2007 GENIE Z60/34 TELESCOPIC BOOM LIFT (A60429)
2007 GENIE Z60/34...
2023 NEW HOLLAND WAGON TONGUE AND LOADING CHUTE FOR NEW HOLLAND SQUARE BALERS (A55315)
2023 NEW HOLLAND...
2005 PETERBILT 379 TRI AXLE  DUMP TRUCK (A59575)
2005 PETERBILT 379...
 
Top