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Valve getting stuck happened with a heavy load on the 3pt. I cured that by popping a wheelie, which temporarily takes the weight off the 3pt wich pops the valve loose.

The valve usually gets stuck when the pump cant get it all the way up and remains pumping oil into the system, thereby heating the valve so it sticks in its bore. Ive had that on multiple occasions on several models when digging deep holes with a 3pt rear bucket.

And what we once found when that didnt work: Unbolted the rear cab floor (the elevated part with the seat) unbolted the knobs from external hydraulics and 3pt lift lever, lifted the floor section up and tied the seat to the steering wheel. Then lifted the 3point lift cover off with an engine hoist.

At the dealer they operated it on air by blowing air pressure in it with an air gun with a rag wrapped around it to seal it somewhat. It turned out that one of the sickle shaped cam tracks that actuate the position control, was bent when i hung it up with the rear wheels off the ground.

<blockquote data-quote="Renze" data-source="post: 23297" data-attributes="member: 19">Valve getting stuck happened with a heavy load on the 3pt. I cured that by popping a wheelie, which temporarily takes the weight off the 3pt wich pops the valve loose.The valve usually gets stuck when the pump cant get it all the way up and remains pumping oil into the system, thereby heating the valve so it sticks in its bore. Ive had that on multiple occasions on several models when digging deep holes with a 3pt rear bucket.And what we once found when that didnt work: Unbolted the rear cab floor (the elevated part with the seat) unbolted the knobs from external hydraulics and 3pt lift lever, lifted the floor section up and tied the seat to the steering wheel. Then lifted the 3point lift cover off with an engine hoist.At the dealer they operated it on air by blowing air pressure in it with an air gun with a rag wrapped around it to seal it somewhat. It turned out that one of the sickle shaped cam tracks that actuate the position control, was bent when i hung it up with the rear wheels off the ground.</blockquote>

[QUOTE="Renze, post: 23297, member: 19"] Valve getting stuck happened with a heavy load on the 3pt. I cured that by popping a wheelie, which temporarily takes the weight off the 3pt wich pops the valve loose. The valve usually gets stuck when the pump cant get it all the way up and remains pumping oil into the system, thereby heating the valve so it sticks in its bore. Ive had that on multiple occasions on several models when digging deep holes with a 3pt rear bucket. And what we once found when that didnt work: Unbolted the rear cab floor (the elevated part with the seat) unbolted the knobs from external hydraulics and 3pt lift lever, lifted the floor section up and tied the seat to the steering wheel. Then lifted the 3point lift cover off with an engine hoist. At the dealer they operated it on air by blowing air pressure in it with an air gun with a rag wrapped around it to seal it somewhat. It turned out that one of the sickle shaped cam tracks that actuate the position control, was bent when i hung it up with the rear wheels off the ground. [/QUOTE]

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