1602 lift quit

[shoot]

While I was moving I noticed the 3pt lift would not work. Changed the hyd filter and checked the screen in trans but still not working. Cracked a pressure line and I've got fluid coming out so the pump seeme to be working, now give me some idea where to ck cause I'm stumped. Thanks, Larry /forums/images/graemlins/confused.gif

 

[EFC]

Electric or manually activated spool?

 

[Soundguy]

Didn't screw in your lift 'stop/hold' valve did you?

Soundguy

 

[shoot]

I took the valve off under the seat and ck'd it over, nothing stuck that I can see.

 

[shoot]

Seems that the lift lever has no effect at all, it there some internal part on this lever subject to fail? Thanks, Larry

 

[normde2001]

Is the 3ph up or down, and if down can you lift it easily with no load? (Don't try to lift it very high or you can pull the piston out of the cylinder and have to remove the cover to reinstall). If "up" it could already be pulled out.

 

[EFC]

Piston and rod are not connected and unless there is something broken they cannot fall out when lifted up.

 

[EFC]

So, you have a manual not electric spool. Cool. Even easier. If your pump is good (flow does not equal pressure) and your handle is not just spinning on the shaft going into the valve then your bypass port in the 3 point valve is stuck open either because of debris or feedback linkage. Easiest thing to do is pull the valve, use a rubber tip air nozzle put air to it and find out if it is porting to sump or putting pressure to the 3 point piston. Please give me a call if this doesn’t make sense, I am happy to walk you through it.

Buck

 

[shoot]

EFC, I think you are on to something. I will pull the valve off again and double ck. There are two places where a spring and ball setup is located, one close to inlet line and the other by the adjustment knob for down speed, Must be the first one stuck. How do you get this out? Thanks, Larry

 

[EFC]

Pull the valve off and it will be self explanatory. Put air to it and you’ll know quick if it is working or not.

 

[shoot]

I took the valve off a ck'ed it, clean as can be. With air applied it ports to the rear housing where the lift control is. Then it returns to the valve by another port, if you hold your finger over this return port it blows the piston out. This return port on the valve side will not take air , seems to be plugged. I think this is the port to the piston but not sure, it does go to a relief valve also on the piston side. Now what? thanks, Larry /forums/images/graemlins/confused.gif

 

[EFC]

This is you lucky chance to talk with me on the phone. Man you are lucky..... /forums/images/graemlins/grin.gif 509-521-1507. Evenings are best.

Buck

 

[shoot]

Pulled the lift off the rear end, took the valve off and took it apart. No trash or sticking valves that I can find, when air is applied directly to piston port lift works, but not with the valve in place. There are three sizes of spring type valves in the body, which one is the most likely to cause my problem? thanks, Larry

 

[shoot]

EFC who do you think you are SURER MECHANIC, I took the spool valve completely apart and cleaned it up just like you said. I could find no problem, put the three point back on the tractor and it works like a new one. You THE MAN, many thank's for the info, Larry

 

[DavesTractor]

This demonstrates again the value of having dealers contribute to the board. There is no better way to gain experience than to service and sell dozens of these tractors a year.

 

[tonyw]

Hello! Sorry to intrude on a thread that has already concluded, but it was suggested--in another thread--that I take a look here for help. I have a 1401d which will lift no more than 450 lbs. ..and that's right at the end of the lift arms! My manual suggests it will lift something between 600 and 1200 lbs., depending on the where the weight is placed I suppose. Should I suspect something like a bad relief valve or O rings..or something more serious? Can I just
pull out the relief valve assembly to check the O rings, or is it more complicated than that?
/forums/images/graemlins/confused.gif
thanks for any help /forums/images/graemlins/crazy.gif