Overrunning Clutch Pulley Vertical Movement

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lyle11
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Overrunning Clutch Pulley Vertical Movement

Postby lyle11 » Fri Jun 12, 2020 1:58 pm

I have another current topic on this forum regarding my Woods 42 mower throwing the belt frequently. It is a Woods 42- CL6 on a 1955 low boy. I’m hoping an expert in the Woods OC will help me figure this out.

I have only used the mower about 2 total hours. The overrunning clutch so far works great. However, I see a lot of belt vibration near the OC pulley especially on the left side. When I remove the belt, I noticed that the OC pulley moves up and down along the Drive Hex about 3/16”

This led me to disassemble and reassemble the OC. I have the proper manual which includes the breakdown of the OC and I’m not missing any parts. There really isn’t much to it, so there’s not much to putting it together.

Based on comments from other forum members with Woods 42 experience, the OC pulley should not move up and down. It would make sense that this creates excessive vibration leading to the belt jumping off.

This leads me to my primary question:

Since the Drive Hex is 3/16” longer than the 2 assembled halves of the OC pulley, what is to keep the pulley from floating up and down along the Drive Hex?
The only way I see it not moving is if the Drive Hex had 3/16” cut off the top.

Top photo pulley lifted, Drive Hex flush with pulley.
Bottom photo, pulley sitting in normal down position exposing 3/16” of the top of the Drive Hex.

Thanks
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inairam
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Re: Overrunning Clutch Pulley Vertical Movement

Postby inairam » Fri Jun 12, 2020 2:44 pm

If the clutch is working and the pulley spins true I do not think it is the clutch.

1) I have a -6. The -6 takes a b138 belt 5/8" X 140.875" Woods 27652 not a b133 like the others woods 42s First thing I would check.

2) post of pictures of the pulley in the mule gear. they should be near the same height in the middle of the adjustment range

edit - sorry this belt is for a regular cub not lobby. Still would make sure you have the correct belt and that the rear pullies are even
When you only have 9 horsepower you need to know the names of all of the ponies!

lyle11
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Re: Overrunning Clutch Pulley Vertical Movement

Postby lyle11 » Fri Jun 12, 2020 3:13 pm

Thanks for your reply.

The belt specified in the Woods 42-CL6 manual for my mower is:

Part No. 3546 W116 V-Belt Special
On my belt it says Woods 3546.

The belt appears to be in good condition. It is too short for all but the furthest rearward position for the Push Channels. Seems to be good in that position with regard to the position of the idlers, but there or no way the belt is long enough for me to use any of the other Push Channel holes.

Right now the belt is not in place. I’m hoping to get an answer on the OC pulley up/down movement before I put the belt back on. I see so much belt vibration at the OC pulley and before I try again, I’d like to know if that is a problem and how to resolve it.

As noted in my other thread, the spindle and bearing feels solid and turns smooth and quiet. But when I engage the mower there is noise and belt vibration at the OC pulley which seems to indicate that it shouldn’t be moving up and down.

Once running and cutting it works good. Belt pops off during initial startup of the mower. (in my brief use it popped off 3 times in 2 hours).

If it was possible to post a video, I could show how the belt vibrates as it comes off the OC pulley. It’s hard to see the up and down movement but easy to see the belt shaking a lot. I’ve never had a Woods 42 but I suspect this is not normal.

Jim Becker
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Re: Overrunning Clutch Pulley Vertical Movement

Postby Jim Becker » Sat Jun 13, 2020 4:37 pm

I measured mine. It is about half of yours, maybe 3/32. If you are concerned about it, you can probably put in a machine bushing or even a flat washer to reduce it. My hunch is this isn't your problem. Broken cord inside a belt can make the belt whip back and forth too.

muleboss
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Re: Overrunning Clutch Pulley Vertical Movement

Postby muleboss » Sat Jun 13, 2020 10:14 pm

Are you putting the washer on? Number 16 This will make hold the spindel from moving
woods spindel (2).jpeg

rick 48 cub
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Re: Overrunning Clutch Pulley Vertical Movement

Postby rick 48 cub » Sat Jun 13, 2020 10:54 pm

I had not seen that type of over running clutch before. Do u know of one that design that fits the cub PTO?

Thanks! :hattip:
Rick 1948 cub

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Re: Overrunning Clutch Pulley Vertical Movement

Postby muleboss » Sat Jun 13, 2020 11:38 pm

Woods 42C IH Cub undermount

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SONNY
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Re: Overrunning Clutch Pulley Vertical Movement

Postby SONNY » Sun Jun 14, 2020 12:48 am

Is not on the pto of the cub ---it's on the top of the mower spindle.

inairam
5+ Years
5+ Years
Posts: 2153
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 6v - Dozer
1949 with kub klipper belly mower. mag 6v - Mom
1950 with plow, 54 blade, mott mag 6v - Roxanne
1953 54 blade, c22, wood 42 6v
1957 6v - barn Queen
1965 lo-boy with c-3 mower 12 v - Loboy
1974 Horse II 12 v c-2
1975 with woods 42-6 12 v - Horse
1979 long strip 12 v stuck engine
130 with international 1000 loader 6 v
1969 140 with bush hog tow behind mower 12 v
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Overrunning Clutch Pulley Vertical Movement

Postby inairam » Sun Jun 14, 2020 5:56 am

I really think the issue with the blet coming off is in the back. The PTO pulley grove should line up with the mule gear pulley grove, the mule gear pulleys should be even and with the deck in the cutting in position the mule gear pulleys and the deck pulley should be lined up.

Does the woods 42 have a belt guide on the loboy?
When you only have 9 horsepower you need to know the names of all of the ponies!

lyle11
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Re: Overrunning Clutch Pulley Vertical Movement

Postby lyle11 » Sun Jun 14, 2020 10:05 am

Thanks for checking Jim. Between you and Dale Finch it seems like some up and down movement is normal. I think you are correct that the OC movement isn’t the root of my problem.

I have concluded that I probably have a spindle problem. It seems to be getting worse. It’s very noisy but not a distinctive noise. So, my next step is to look at the spindle. I created this topic just to address the OC but have another thread on my Woods 42 overall.

Thanks

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Re: Overrunning Clutch Pulley Vertical Movement

Postby SONNY » Sun Jun 14, 2020 12:38 pm

Bearing noise? --- could be worn bearings. --- Even with grease they do go bad from normal wear.


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