417A hydraulic lift problem

[xring1 2]

I was blowing snow and went to lift the blower and there was a bang and the blower will not lift.

I have checked and all shafts/lift bars etc are intact and no leaks anywhere. It sounds like the hydraulics at the control lever are getting pressure and puts a slight load on the engine but the ram is not working.

Any ideas? :banghead:

[Sparky-(Admin) 19,652]

Is the lift flag still hooked in the little hole on the lift arm? Maybe the "stub" on the lift flag busted off . I allways thought that piece was kinda undersize for what it was required to do.

Mike.....

[TT-(Moderator) 1,128]

If the pin on the lift "flag" didn't pop out or shear off, here's another possibility.....

It's highly unusual, but the square key on the lift shaft (#18 in the following illustration) can shear.

[Sparky-(Admin) 19,652]

It's highly unusual, but the square key on the lift shaft (#18 in the following illustration) can shear.

Ugg....I bet thats fun to replace .

Mike.........

[xring1 2]

The hydraulic ram is not working to move anything to begin with.

Everything else seems to be intact. Is it possible that the piston/ram broke inside the ram housing?

[Indy w h 4]

There is a good possibility that the O-rings on the ram went bad

the only way to find out is to take the cylinder apart and inspect

the O-rings

Indy

[Kelly 1,028]

You will find most newer rams are not rebuildable with out cutting them open then welding back shut.

[xring1 2]

You will find most newer rams are not rebuildable with out cutting them open then welding back shut.

Kelly

What do you consider "newer"? I assume the ram is original 1985