Been having a problem with a lot of bouncing and such. Replaced the drive chains, checked adjustment and tire pressure. I seem to have narrowed it down to the left hand steering control. It doesn't creep at all, but all you have to do is breathe on it to get the left wheels engaged, forward or reverse. I mean, just the slightest pressure, much more sensitive than the right side. If I keep my hand off the left side, the machine is much smoother, as any little movement of my left hand with cause bouncing, but that's not really practical. Is there some sort of adjustment for this?
Help Support SkidSteer Forum:
If its hydrostatic drive, check your linkages to the swash plates on the pump. If they are loose or worn it may be rocking back and forth causing it to jump around as they are being allowed to move on their own and not held tight with the steering levers.
Earthwerks Unlimited
Well-known member
- Joined
- Dec 21, 2007
- Messages
- 303
My buddy's Lx665 does this sometimes. For the most part he runs the RPM too low. The erratic movement on his is also due to the weight distribution--he has a heavy grapple bucket. Also low tire pressure will cause this too.
After watching carefully, what happens is a little bounce causes my arm on the steering lever to wiggle a little, causing an even bigger bounce. Replaced the LH steering damper, helped a lot. Can't believe that little shock absorber is $50. A Monroe too, no less.
skidsteer.ca
Well-known member
- Joined
- Jan 20, 2006
- Messages
- 3,853
As I recall the one for the 853 bobcat were 43.00 each 3 years back. They are really needed.
Ken
Chip,
What was your fix for the left-hand steering control. I have the same issue. I replaced the guides and the steering dampeners. Checked drive chains everything is under the 1/4 movement.
Left side very sensitive just to touch, right side about a 1/4 inch movement before engaging the tires.
Last edited:
Take another close look at the control linkages under the seat. Any source of play from the handles to the control arm on the pump. By the guides, do you mean the plastic blocks under the equalizer plate on top of the pumps? How about the hole in that plate at the back where the large spring is? I had one that was jumpy at full throttle on rough surface, but that was both sides. For it, I wished the shock was about twice as stiff. But play in the linkages and equalizer plate amplify the problem. Maybe check that the control arm is secure on the shaft going into the pump.
Yes, the plastic block under the equalizer plate. I didn't take the large spring out, I didn't know there was a guide there too. I will order those parts too. I would agree the shocks would be better stiffer. I will look at this this weekend and will report back Thank you for the response!
Yea, there can be wear back at the spring too. I remember replacing the whole plate one time on one of my machines with high hours. Be aware that there are rectangular blocks bolted in slots on the bottom of that plate. Those blocks ride against rollers to provide the neutral centering. Space between the rollers and blocks would create somewhat uncontrolled play too. But remember they set the neutral on the pump so if you mess with them you're likely to loose center and the loader will move when you start it--be safe! I prefer to have the loader securely up on blocks when messing with the neutral settings. Good luck.
