Sawyer Rob
Super Member
They are ALL glazed once they slip very much!
Tighten it and run it!
SR
Tighten it and run it!
SR
PTO slip clutch - bad or?
- Thread starter DieselBound
- Start date
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Richard
Elite Member
- Joined
- Apr 6, 2000
- Messages
- 4,975
- Location
- Knoxville, TN
- Tractor
- International 1066 Full sized JCB Loader/Backhoe and a John Deere 430 to mow with
Reason 43 why I like my hydraulically powered mower!! Zero slip clutches however, I do have as I recall, three pressure reliefs
Tx Jim
New Member
Ditto I agree with Rob. If clutch can be adjusted not to slip easily then it serves it's purpose.
OP
DieselBound
Elite Member
Well, good news, for now...
Appears that smoke doesn't equal death.
Adjusted springs to 1.10". Seems that the previous 1.18" setting might have been a sloppy one: seemed awfully loose; easy enough to tighten up, almost too easy. I finished the mowing that I'd wanted to, though avoided the really heavy stuff because I needed to get the other done first: the really heavy stuff was at the outer reaches away from where I needed to mow; didn't have time or desire to travel back there to try things out- it's just an area that I like to open back up from time to time, an area that I don't religiously maintain.
As stated, it's really a matter of adjusting enough to keep from readily slipping, yet still loose enough to give way in situations that could harm the tractor's PTO. I'd had difficulty in getting the clutch to slip and decided to back WAY off. Once I was sure that things weren't frozen I adjusted it to the 1.18" spec and all seemed well up until I met the very tall and wet grass: might have been really loading up the stump jumper and blades with long and wet grass (cutter was set pretty low- I raised it up but was too late by then- the smoke had already gotten out!).
Appears that smoke doesn't equal death.
Adjusted springs to 1.10". Seems that the previous 1.18" setting might have been a sloppy one: seemed awfully loose; easy enough to tighten up, almost too easy. I finished the mowing that I'd wanted to, though avoided the really heavy stuff because I needed to get the other done first: the really heavy stuff was at the outer reaches away from where I needed to mow; didn't have time or desire to travel back there to try things out- it's just an area that I like to open back up from time to time, an area that I don't religiously maintain.
As stated, it's really a matter of adjusting enough to keep from readily slipping, yet still loose enough to give way in situations that could harm the tractor's PTO. I'd had difficulty in getting the clutch to slip and decided to back WAY off. Once I was sure that things weren't frozen I adjusted it to the 1.18" spec and all seemed well up until I met the very tall and wet grass: might have been really loading up the stump jumper and blades with long and wet grass (cutter was set pretty low- I raised it up but was too late by then- the smoke had already gotten out!).
ericm979
Super Member
- Joined
- Nov 25, 2016
- Messages
- 5,805
- Location
- Santa Cruz Mountains CA, Southern OR
- Tractor
- Branson 3725H Deere 5105
The Bandolini slip clutch on my rotary cutter is too tight at the specified 1.18". The last time I adjusted it I set it a little looser than that. I get a bit of slip on PTO clutch engagement.
I suspect the combination of clutch wear and production tolerances make the 1.18" spec just a ballpark.
I suspect the combination of clutch wear and production tolerances make the 1.18" spec just a ballpark.
Zebrafive
Super Member
On friend's 6' Tarter Tiller, the instructions say tighten until spring can not be turned by hand the tighten an additional 1 1/2 turns. No spring measurement given.
Sawyer Rob
Super Member
I NEVER go by spring or stud length! How do they know what tractor YOU have???
Tighten the springs down until it stops slipping in normal use, and then give them another half turn.
SR
Tighten the springs down until it stops slipping in normal use, and then give them another half turn.
SR
Tx Jim
New Member
Technically I think tractor hp has very small affect on how tight a slip clutch should be adjusted. I've never read an operator's manual that stated adjust slip according to tractor HP. It requires a certain amount of torque to initially slip the clutch that's the reason some equipment OM states adjust slip clutch tension utilizing a torque wrench to power pto shaft.
Sawyer Rob
Super Member
I have seen suggested ratings for the HP of the tractor it will be used on, but I would never use that as the judge...
Like I said, adjust the clutch to YOUR tractor and conditions...
SR