Howdy,
Ive got a dirty old rusting 4712 that has sat idle for about 15 years. I have the old girl ticking over again and apart from some black sticky oil coming out exhaust, it seems to run ok.
My issue is the lift on the 3PL isnt doing anything.
When I first statrted it and attempted to raise, the arms came up but wouldnt go down. After it was shut down the arms came back down eventually. But now they dont move at all except if i manual lift and lower. It feels like the cylinder has disconnected from the arms as there is nothing restricting the arms going up and down. They are super limp.
Does the seal on the actuator piston ever fail?
The external hydraulic lines sound and look like are pressurizing when the inner circuit is manipulated.
Any ideas?
Ive got a dirty old rusting 4712 that has sat idle for about 15 years. I have the old girl ticking over again and apart from some black sticky oil coming out exhaust, it seems to run ok.
My issue is the lift on the 3PL isnt doing anything.
When I first statrted it and attempted to raise, the arms came up but wouldnt go down. After it was shut down the arms came back down eventually. But now they dont move at all except if i manual lift and lower. It feels like the cylinder has disconnected from the arms as there is nothing restricting the arms going up and down. They are super limp.
Does the seal on the actuator piston ever fail?
The external hydraulic lines sound and look like are pressurizing when the inner circuit is manipulated.
Any ideas?
