Recent content by scottyk

I have a 753 bobcat and have been experiencing no power to the right hand drive motor. I took out the motor and resealed it and put it back but had the same problem. Today I switched the two motors and the problem is now on the left side so I believe the pump is okay and something is wrong...

Belt replaced and tightened, new radiator cap installed, but still gets hot.

Belt replaced and tightened, new radiator cap installed, but still gets hot.

I have a 753, first group made, the is not operating well when driving forward. When the left lever is pushed forward, it initially engages and drives forward, but after a little while it stops pulling forward and the only the right side keeps driving. I have also noticed that when engaging...

I live in Hawaii where outside temperatures range from 80-90 degrees. My 307 excavator has been running hot with coolant first, than hydraulics to follow shortly after. Thermostat is okay, and there is no coolant loss or leaks. Engine runs fine and only starts to go into red after about 1/2...

Hi, Has anyone experienced what appears to be play in gear mesh between the swing motor gear and the turntable gear. When swinging around and stopping I am experiencing clunking. When I change direction It's even louder. Any ideas?

Found the problem and machine is operable again. Spool valve for the circuit was a little rusty in the middle area. Put some emery cloth to it and put everything back and it's as good as new. Thanks fishfiles, spool had spring on it as you described and oppositte side cap had to be removed...

Thanks fishfiles. Do you know if I need to remove both sides or can I slide out the spool on one side without any parts falling off inside? Also, do you take it off in two pieces(taking out the allen bolts and separating) or one piece?

Aloha guys, the arm cylinder on my excavator was always falling when joystick was in neutral. The other day while cleaning the arm suddenly extended all the way out and would not return. At the same time I could hear a higher pitch noise in the hydraulics and I believe it's one of the by-pass...

Aloha again guys and thanks for the suggestions. I checked the cylinder today and it is okay; the piston holds under pressure of air and only moves a little then stops and no more air can go through. I started the engine with the extend arm hose off and joystick in neutral. I immediately got...

Hi guys, I'm looking for some help with a hydraulic problem I'm having. I posted it uner general repair section and ask if you could visit that section and see if you can help me pinpoint the problem. Thanks for your time.