JOHN140
Active Member
I operate a early model 140m. The hydraulics usually don't feel quiet right feels like the cylinders are drifting a little bit most of the time, but then sometimes seems to go away and work perfectly.. The hydraulic pressure in the messenger window will jump back and forth from 500-2000 psi while just idling and hands off the controls.... Is this normal??? I have noticed lots of air bubbles in the hyd. tank on the surface of the oil, checked it many times at different times of the day and their are always lots of bubbles on the surface of the oil in the tank.... Operators manual says to check suction hose and clamps for this how many suction hoses are their ??? and how many pumps does this blade have??? Their are four hoses connected to the bottom of the tank.. A large rubber hose with hose clamps from tank to pump maybe 1' long, a smaller (maybe 2'') o-ring type hose goes down and out of sight , then two normal size o- ring hoses(like would be on your cylinders) connect to a y fitting on the bottom of the tank.. The fittings on the bottom of the tank for the smaller hoses are loose where they screw into the tank. Can be moved by hand, could this let the air into the hyd system.. Where the hyd. pump bolts to transmission their is a little bit of old oil with dust caked over it, but not wet maybe a very slow leak over a long time..