Moral of the story....

GmB

Member
Location
S.Glos
If it aint broke, don’t fix, or never throw anything away.
Kuhn 2135 had its first outing yesterday, has been in the workshop for the bearings in one of the net rollers to be replaced after one side lost its shield and kept grabbing and tearing the net the end of last season.
Putting it all back together, noticed that the drive belt was a little ripe so replaced with a new one.
First 2 bales popped out without a problem, but then the net would start to feed into the chamber shortly after starting the next bale.
1/2 hour later, came to the conclusion that the new drive belt was the issue, with the baler running empty, I stood looking at the drive belt, which should run slack unless feeding the net in, and noticed that the rubber drive roller would now and again move slightly, the belt under no tension should slip over this pulley, which meant it was feeding net into the chamber, and when a long enough length of net was in the chamber and enough grass to catch the net, off it went.
Mrs GMB was bringing coffee and chocolate, so I sent her into the workshop to retrieve the old belt which I had carefully packed away.
Off with the new belt, same numbers as old one, measured against the old belt, old belt was a tad bigger.
On with the old belt, perfect for the rest of the day.

The question is, had I not kept the old belt, is there any adjustment in the system to allow for the new, unworn belt?
The large main drive pulley comes apart and the parts book shows 2 shims between the two halves of the pulley, the only thing I can think of is to increase the shim thickness to allow the new belt to sit lower in the pulley, thus giving some slack in the new belt.


Ta
266C4A8E-5578-4F7F-BA4D-EAD110ABA9DA.jpeg
 

wdah/him

Member
Location
tyrone
would there be any adjustment on the tensioner motor end of things, had a deutz mp130 other than adjusting the brake on the net there was a steel bracket at the net belt that could be adjusted to help tighten the belt up but i dont see that in your picture so must have changed
 

GmB

Member
Location
S.Glos
Was the old belt smooth and new one toothed?

Some belt dressing may be?

Old belt was new at some point!
Old belt toothed just like the new one.
Thought belt dressing was to make it stick not slip?
That is my point, had I thrown the old belt out I would have been buggered, but the new belt should work.
 

GmB

Member
Location
S.Glos
would there be any adjustment on the tensioner motor end of things, had a deutz mp130 other than adjusting the brake on the net there was a steel bracket at the net belt that could be adjusted to help tighten the belt up but i dont see that in your picture so must have changed
I reset the tension motor thing twice, no change
 

Mur Huwcun

Member
Livestock Farmer
Location
North West Wales
You could try the new belt on now as the pulleys will have shone up a bit. I have seen the serated knive getting rusty and not cutting cleanly thus leaving a rough cut with strands hanging into the chamber. Had to clean a few up
 

Tractortech

Member
Location
Cumbria
Now Then..
I've seen the pulley and shim arrangement before. Usually, the spare shims are bolted to the outside of the pulley. I assume you have never removed any shims?? Have you had the baler from new?? If second hand, maybe the previous owner has adjusted it and the spare shim is hanging on a nail 🤔
 

e3120

Member
Mixed Farmer
Location
Northumberland
I had this problem on a nh a long time ago. It was one of those chain and slat jobbies that we filled the basic autolube (a trickle every time the door opened) with old engine oil. Dunked the new belt in the oil bottle, no more issues!
 

GmB

Member
Location
S.Glos
I had this problem on a nh a long time ago. It was one of those chain and slat jobbies that we filled the basic autolube (a trickle every time the door opened) with old engine oil. Dunked the new belt in the oil bottle, no more issues!
I did give it a squirt of wd40, but didn’t change anything
 

GmB

Member
Location
S.Glos
Now Then..
I've seen the pulley and shim arrangement before. Usually, the spare shims are bolted to the outside of the pulley. I assume you have never removed any shims?? Have you had the baler from new?? If second hand, maybe the previous owner has adjusted it and the spare shim is hanging on a nail 🤔
Baler second hand. No, I haven’t removed any shims. Tried to have a look at the drive pulley this morning, but couldn’t see how many, if any, shims are fitted.
I won’t be fiddling with it again this season unless something goes pop.
 

SFI - What % were you taking out of production?

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  • 100% I’ve had enough of farming!

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Red Tractor drops launch of green farming scheme amid anger from farmers

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As reported in Independent


quote: “Red Tractor has confirmed it is dropping plans to launch its green farming assurance standard in April“

read the TFF thread here: https://thefarmingforum.co.uk/index.php?threads/gfc-was-to-go-ahead-now-not-going-ahead.405234/
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