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Read articles →A dealership staffer walks through what a third function valve actually is, how it's wired from the loader handle back to the hydraulic block, and the real-world steps for hooking up a grapple or auger. Covers Pioneer vs. flat-face couplers, coupler sizing, and, most usefully, how to relieve trapped hydraulic pressure so stuck couplers will actually connect. Best for first-time third-function owners troubleshooting a grapple hookup.
Posted by the Kubota of Lynchburg dealership channel, so the advice is knowledgeable but carries a mild sales lean toward dealership installation and preferred products.
It's a valve kit adding a third hydraulic function beyond raising/lowering the boom and tilting the bucket, letting you run a grapple, auger, or similar attachment from the loader handle.
Trapped hydraulic pressure builds up from temperature changes or sitting unused, making couplers hard to connect; relieving that pressure lets them plug in properly.
Turn the tractor's electronics on one click without starting the engine, then move the loader and work the buttons until hose pressure releases and droops.
Pioneer couplers are easy on/off but drip five to ten drops of oil each side when removed; flat-face couplers release pressure to connect, leave no mess, and resist dirt.
