843 hydraulic problem

[freddystewart]

I have a bobcat 843 and the lift wont do nothing. I took both lines off the lift jacks didnt have any oil coming out the pin side and oil comes out the stem side all the time reagardless of the position of the pedal. The tilt has very little movement either way any ideas on where to check would be helpful. Im kinda new to this machine I have a 610 that Ive had for years great little machine.

 

[Tazza]

The right steering stick, pull it all the way to the left then let it spring back. This is your aux hydraulics.
If that does nothing, it sounds like your pump may be bad.....

 

[freddystewart]

The right steering stick, pull it all the way to the left then let it spring back. This is your aux hydraulics.
If that does nothing, it sounds like your pump may be bad.....

I tried the right steering stick couldnt get it to move. checked all three solenoids with screwdriver in them and they magnetized. when you start it it keeps down pressure on the boom all the time. It seems something is going on in the valve controller any more ideas would be great thanks for your last post.

 

[Tazza]

I tried the right steering stick couldnt get it to move. checked all three solenoids with screwdriver in them and they magnetized. when you start it it keeps down pressure on the boom all the time. It seems something is going on in the valve controller any more ideas would be great thanks for your last post.

oops, sorry, your machine doesn't have a lever that moves on the right, only the older ones were like that.
As you note that the coils are working, i suspect the stem is the issue. You will have two on the top that are the aux hydraulic controls, the other one i think sticks out the side? this is the lift lock. See if you can remove it (you will get oil coming out) and put the coil over it and see if it buzzes too. Sometimes they stick internally.

 

[freddystewart]

oops, sorry, your machine doesn't have a lever that moves on the right, only the older ones were like that.
As you note that the coils are working, i suspect the stem is the issue. You will have two on the top that are the aux hydraulic controls, the other one i think sticks out the side? this is the lift lock. See if you can remove it (you will get oil coming out) and put the coil over it and see if it buzzes too. Sometimes they stick internally.

I pulled the stem out put the coil on it put 12 volts to it and nothin but you can feel it magnetized if you pull on it. does that mean the stem is bad or is there another way to check it thanks

 

[Tazza]

I pulled the stem out put the coil on it put 12 volts to it and nothin but you can feel it magnetized if you pull on it. does that mean the stem is bad or is there another way to check it thanks

Sounds like the stem is stuck. It should click when power is applied.
I believe they can be pulled apart like the aux hydraulic stems and cleaned.

 

[freddystewart]

Sounds like the stem is stuck. It should click when power is applied.
I believe they can be pulled apart like the aux hydraulic stems and cleaned.

done that today it doesnt click so I ordered one thanks for the help