Jinma 354 3 point upgrade?

[BellaRidgeFarm]

Does anyone know whether there is an aftermarket control unit for the rear 3 point hydraulics for a Jinma 354.

 

[Affordable]

What do you mean ? A after market lift valve? If yes no you have to use or replace the one you have with the same type you currently have

Tommy
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"Your Jinma Parts Superstore"
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[Bob Rooks]

I think he means he wants down pressure, and maybe a hydraulic top link. Similar to the set up that 3rrl did to his. He wasn't very specific as to what his needs were.

 

[BellaRidgeFarm]

Yes Bob, you are correct, I need to replace the factory control valve, but before doing it, if I can add a control for down pressure for an auger, I would like to find something that would work both. Sorry I wasn't clear about it in the first post.

 

[quicksandfarmer]

Yes Bob, you are correct, I need to replace the factory control valve, but before doing it, if I can add a control for down pressure for an auger, I would like to find something that would work both. Sorry I wasn't clear about it in the first post.

Down pressure is usually an option for the auger not the 3pt hitch. The arms on a 3pt hitch float -- they are free to swing upward because they aren't attached to the lift cylinder. So they can't push down. Even if they could push down the geometry wouldn't be right for augering.


To get down pressure, you have to lock the lift arms in place and adjust the angle of the boom. A rigid triangle attached directly to the top mount of the 3pt hitch -- no top link -- and to the lift arms will lock the lift arms down. A hydraulic cylinder on the boom that adjusts the angle between the boom and the rigid triangle will be capable of creating down pressure. Note that virtually all of the force will be on the top mount. Note also that applying the lift cylinder on the 3pt hitch when the lift arms are locked is not a good idea!

This manual has some pictures that may be helpful:
http://www.bushhog.com/images/stories/documents/manuals/PostHoleDigger.pdf