Hello everyone, first post here.
I have owned a 1986 L3750 DT shuttle shift w/ loader and box for approximately 8 months. Unknown hours (meter doesn't work). Tractor works great and was serviced when I purchased it. Engine and hydraulic fluid are full.
When the tractor is running, PTO off, it will occasionally make a very loud, continuous, metallic scraping/rattle noise and vibration that sounds like the part/parts causing the noise are turning at speeds at or near engine RPM.
When I push the clutch in, the issue sometimes stops. If I turn the engine off and restart, the issue goes away. When it is at operating temperature or above idle, the issue occurs more often. Hydraulics and forward/reverse still work when the problem is occurring.
The best way I can describe the noise is like having a South Bend Dual Disk clutch and pushing the clutch in (metallic scraping/rattle). The vibration and feel of it is like a washing machine that is improperly loaded and off balance.
When I turn the engine off, noise slows down and finally stops like it is spinning at same revolution as engine.
Seems to be clutch related but tractor still moves fine when the issue is occurring. I am unaware how these tractor clutches work compared to other vehicles but would it be possible the clutch can come off balance and just resets itself when the tractor is turned off?
It was suggested to me that it could be a hydraulic pump issue, but, hydraulics and tractor still move when the issue is occurring.
Tractor still works great but noise is extremely loud and something has to be coming apart or working towards a catastrophic failure.
As of writing this, I realized I have not attempted to see if the issue occurs when the PTO is activated. I will try to video the issue occurring when I get back out to the property.
Any advice or suggestions is greatly appreciated.
Paul
I have owned a 1986 L3750 DT shuttle shift w/ loader and box for approximately 8 months. Unknown hours (meter doesn't work). Tractor works great and was serviced when I purchased it. Engine and hydraulic fluid are full.
When the tractor is running, PTO off, it will occasionally make a very loud, continuous, metallic scraping/rattle noise and vibration that sounds like the part/parts causing the noise are turning at speeds at or near engine RPM.
When I push the clutch in, the issue sometimes stops. If I turn the engine off and restart, the issue goes away. When it is at operating temperature or above idle, the issue occurs more often. Hydraulics and forward/reverse still work when the problem is occurring.
The best way I can describe the noise is like having a South Bend Dual Disk clutch and pushing the clutch in (metallic scraping/rattle). The vibration and feel of it is like a washing machine that is improperly loaded and off balance.
When I turn the engine off, noise slows down and finally stops like it is spinning at same revolution as engine.
Seems to be clutch related but tractor still moves fine when the issue is occurring. I am unaware how these tractor clutches work compared to other vehicles but would it be possible the clutch can come off balance and just resets itself when the tractor is turned off?
It was suggested to me that it could be a hydraulic pump issue, but, hydraulics and tractor still move when the issue is occurring.
Tractor still works great but noise is extremely loud and something has to be coming apart or working towards a catastrophic failure.
As of writing this, I realized I have not attempted to see if the issue occurs when the PTO is activated. I will try to video the issue occurring when I get back out to the property.
Any advice or suggestions is greatly appreciated.
Paul
