I have a 248 skid that i had a parking brake light on. check switch and it was bad replaced it no all lights go off but will no move. i check all power to switch and coils all good just no hydraulic need help
Check your fuses
Could it be the parking brake solenoid?
i tested the solenoid and its good. i checked the work tool piston pump and i have no pressure. Dose anyone know what pressure it should be?
If there is absolutely zero pressure in the hydraulic system have you considered the possibility that the flexible coupling between the engine and the hydraulic pump may have failed, thus the pump is not turning..?
Does the radiator fun run is a safe test to if the pump coupler is out or not
i get no pressure at the piston (work tool) pump but the pump in front of it i get 300 psi.
the fan is moving.
Not the engine/pump coupler then.
Do you know what the pressure should be at the work tool pump?
Still working on this problem don't what to buy a pump it its not the problem. This machine has a pump on the motor that goes to the fan motor.
I’ll repeat what I suggested a month ago - at least check your fuses. Something may have caused your brake switch to fail and could have possibly blown a fuse, maybe the safety fuse.
The implement pump standby pressure should be at least 350 psi. It could still be a drive pump coupler that is failed. 248’s are a unique design; the fan pump is driven on the back of the engine front cover. The fan pump is also the charge pump for the hydrostatic drive pump; so you can get pressure at the hydro pump even though it may not be rotating.
Well i found the problem it was the coupler between the engine and the pump? The fan did work fine but is ran by another pump.
I learned something today never known that