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Read articles →This is a real-time repair video: the owner's L3901 loader hose actually burst in the field, and he walks through the fix from start to finish, including safety prep (dropping the bucket, releasing pressure), swapping the 45-degree and straight fittings, zip-tying the hose for clearance, checking and topping off UDT2 hydraulic/transmission fluid, and cycling the loader afterward to test for leaks. Useful for L3901/LA525 owners facing the same failure.
Posted by the Ray Hayden, J.D. channel, an owner sharing a hands-on repair from his own property rather than a dealer or professional mechanic.
Drop the front bucket to the ground, lower any rear implement, and move the loader control to the floating position to release pressure on the system before working.
UDT2 Super Universal Trans-Hydraulic Fluid, a proprietary Kubota blend that covers both transmission and hydraulic needs.
The fluid check point is on the middle pedestal by the operator's feet, and the reservoir to add fluid is at the back under a red cap you can loosen by hand.
After adding fluid, he ran the engine, cycled the boom up and down and tilted the bucket, then checked the hose connections for leaks and found none.
