- Joined
- May 15, 2011
- Messages
- 6
- Location
- Vermont, USA
- First name
- Cal
Machinery:
Zetor 4341 Super, 2x 5211
Have a 2003 4341 Super with 1550 hours on it. We bought it at 600 hours 3 years ago. We are having problems with the clutch. Seems early to have disc or pressure plate problems, since we've put over 5000 hours on our 5211 and are only now seeing signs of wear.
It feels like the clutch disc is slipping -- we have problems starting forward (or backwards) from stop, can rev the engine and have the speed stay the same (or slow down) instead of achieving a higher ground speed. But the slipping is not consistent, so I am puzzled. It slips less first thing in the morning and gets worse as we use it. Sometimes it will slip, engage for a bit, start to slip again, as though the disc is somehow pushing more (and less) into the flywheel and transmitting power. Today, after looking at it in the shop (more on that below), I found that I could bring the tractor to a standstill by pulling up on the PTO clutch handbrake lever, and then make it go again by releasing it.
We have changed both the master and the slave cylinder and bled the things to death. System has good line pressure and no air. However, the pedal still feels a bit spongy, though this is better if the free play is adjusted to minimal and the clutch pedal is set at the highest position off the floorboards.
I've opened both the inspection ports on the lefthand side of the tractor. Found lots of black clutch dust, but otherwise it looks dry, not oily or greasy, no rust or moisture. Turned the clutch assembly around a couple of times and all the fingers appear to be right (3 PTO, 3 engine, set differently.)
So, do I just need to split the tractor for a new clutch, or is there something else I can try through the access port or somewhere else? Thanks for any ideas. By the way, what is it that makes a 'Super' different from others aside from the marketing dept?
It feels like the clutch disc is slipping -- we have problems starting forward (or backwards) from stop, can rev the engine and have the speed stay the same (or slow down) instead of achieving a higher ground speed. But the slipping is not consistent, so I am puzzled. It slips less first thing in the morning and gets worse as we use it. Sometimes it will slip, engage for a bit, start to slip again, as though the disc is somehow pushing more (and less) into the flywheel and transmitting power. Today, after looking at it in the shop (more on that below), I found that I could bring the tractor to a standstill by pulling up on the PTO clutch handbrake lever, and then make it go again by releasing it.
We have changed both the master and the slave cylinder and bled the things to death. System has good line pressure and no air. However, the pedal still feels a bit spongy, though this is better if the free play is adjusted to minimal and the clutch pedal is set at the highest position off the floorboards.
I've opened both the inspection ports on the lefthand side of the tractor. Found lots of black clutch dust, but otherwise it looks dry, not oily or greasy, no rust or moisture. Turned the clutch assembly around a couple of times and all the fingers appear to be right (3 PTO, 3 engine, set differently.)
So, do I just need to split the tractor for a new clutch, or is there something else I can try through the access port or somewhere else? Thanks for any ideas. By the way, what is it that makes a 'Super' different from others aside from the marketing dept?
