ACMOC
Login
ACMOC
212 grader clutch help needed

212 grader clutch help needed

Showing 1 to 10 of 25 results
1
grayrat
Topic Author
Offline
Send a private message to grayrat
Posts: 45
Thank you received: 0
Hi All,
I have a 212 1951 grader with D2 D311 engine SN 9T2490. I have a few questions on the clutch for you. 1. how do I remove old clutch disk / Hub see photos. it looks like the disk flew apart when the pilot bearing failed. 2. is it normal for the disk to have an open space? the pilot bearing and race are tore up and I need to see if any scrap metal is behind the disk and replace the pilot bearing race. 3. An internal ring gear prevents disk[attachment=29443]IMG_0867.jpg[/attachment][attachment=29444]IMG_0874.jpg[/attachment][attachment=29445]IMG_0890.jpg[/attachment][attachment=29446]IMG_0892.jpg[/attachment] from just pulling out. recommendations on part are welcome.

Thanks for all the help.
Attachment
Attachment
Attachment
Attachment
Please log in or create an account to join the conversation.
Thu, Jun 11, 2015 11:46 PM
Jeff M.
Offline
Send a private message to Jeff M.
Posts: 358
Thank you received: 0
you need to clean around the outside edge so it will come out of the teeth in the flywheel. your clutch fingers look good that is the hardest to find.
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 7:52 AM
josh
Offline
Send a private message to josh
Posts: 1,199
Thank you received: 0
Reply to Jeff M.:
you need to clean around the outside edge so it will come out of the teeth in the flywheel. your clutch fingers look good that is the hardest to find.
It certainly looks like a section of the clutch plate is broken out, wonder where that went.
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 8:58 AM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,694
Thank you received: 16
Reply to josh:
It certainly looks like a section of the clutch plate is broken out, wonder where that went.
Never seen a clutch disc that looked like that, at least not intentionally anyway. No sign of rivets or holes??. Looks like it was missing some pads originally.
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 9:21 AM
josh
Offline
Send a private message to josh
Posts: 1,199
Thank you received: 0
Reply to Old Magnet:
Never seen a clutch disc that looked like that, at least not intentionally anyway. No sign of rivets or holes??. Looks like it was missing some pads originally.
I think it is that there is a whole section of the clutch plate assembly missing, I was looking for the holes for the rivets as well.
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 10:17 AM
ccjersey
Offline
Send a private message to ccjersey
Posts: 4,422
Thank you received: 0
Definitely an aftermarket disk in there. Lots more pads than some i have seen in other applications, but those are usually ceramic instead of the bronze? pads on that one.

The clutch disk does not engage the flywheel ring gear teeth like the D2 tractor. The pressure plate engages the teeth and is prone to sticking in the dust and oil that collects inside there when machine sits for a while. Symptoms will be slipping clutch, but linings appear to have good thickness when removed.

This is an automotive type foot clutch like a wheel tractor or truck would use and the disk should just lift out of the flywheel unless it was so large that the ring gear was installed on top of it. Definitely not the way it was done from factory.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 10:44 AM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,694
Thank you received: 16
Reply to ccjersey:
Definitely an aftermarket disk in there. Lots more pads than some i have seen in other applications, but those are usually ceramic instead of the bronze? pads on that one.

The clutch disk does not engage the flywheel ring gear teeth like the D2 tractor. The pressure plate engages the teeth and is prone to sticking in the dust and oil that collects inside there when machine sits for a while. Symptoms will be slipping clutch, but linings appear to have good thickness when removed.

This is an automotive type foot clutch like a wheel tractor or truck would use and the disk should just lift out of the flywheel unless it was so large that the ring gear was installed on top of it. Definitely not the way it was done from factory.
Picked up this info on the 212 clutch somewhere for what it might be worth????
Please log in or create an account to join the conversation.
Fri, Jun 12, 2015 11:04 AM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,694
Thank you received: 16
Reply to Old Magnet:
Picked up this info on the 212 clutch somewhere for what it might be worth????
I don't have info on the 212 but here is some on the 112 which I believe is the same configuration. The clutch discs do not engage the flywheel teeth. The first drive plate does engage the teeth. The clutch disc should just slip out unless there is a sizing issue.
Please log in or create an account to join the conversation.
Sat, Jun 13, 2015 1:01 AM
grayrat
Topic Author
Offline
Send a private message to grayrat
Posts: 45
Thank you received: 0
Reply to Old Magnet:
I don't have info on the 212 but here is some on the 112 which I believe is the same configuration. The clutch discs do not engage the flywheel teeth. The first drive plate does engage the teeth. The clutch disc should just slip out unless there is a sizing issue.
Old clutch is out and the only thing usable is the hub. fingers are all stress cracked. Centrifugal force forced the fingers into the internal ring gear. Pilot bearing pieces pretty much destroyed the disk Original PN is 5B8725 is there a generic cross for the disk or a recommendation on a shop that can build a disk from the hub and specs?
Please log in or create an account to join the conversation.
Sat, Jun 13, 2015 1:42 AM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,694
Thank you received: 16
Reply to grayrat:
Old clutch is out and the only thing usable is the hub. fingers are all stress cracked. Centrifugal force forced the fingers into the internal ring gear. Pilot bearing pieces pretty much destroyed the disk Original PN is 5B8725 is there a generic cross for the disk or a recommendation on a shop that can build a disk from the hub and specs?
That list I posted is the sequence of replacements.
5B8725 RPB 2H0559 = 8W9315.
None appear to exist any more and are not listed in my Friction Disc specifications. An old time clutch/brake shop might be able to help you out.

Same problem on clutch fingers, no longer available. Last discussion I had a couple of years ago involving clutch information posted was the clutch fingers had to be fabricated.
Please log in or create an account to join the conversation.
Sat, Jun 13, 2015 2:06 AM
grayrat
Topic Author
Offline
Send a private message to grayrat
Posts: 45
Thank you received: 0
Reply to Old Magnet:
That list I posted is the sequence of replacements.
5B8725 RPB 2H0559 = 8W9315.
None appear to exist any more and are not listed in my Friction Disc specifications. An old time clutch/brake shop might be able to help you out.

Same problem on clutch fingers, no longer available. Last discussion I had a couple of years ago involving clutch information posted was the clutch fingers had to be fabricated.
Thanks for the numbers OM. I hit a dead end on them. I'm hoping Capital Clutch can help me out.
Please log in or create an account to join the conversation.
Sat, Jun 13, 2015 8:46 AM
Showing 1 to 10 of 25 results
1
YouTube Video Placeholder

Follow Us on Social Media

Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.

Upcoming Events

Wheatlands Warracknabeal Easter Rally

Chapter Nineteen

| 34 Henty Hwy, Warracknabeal

Veerkamp Open House 2025

Chapter Fifteen

| Placerville, CA

Stradsett Park Vintage Rally

Chapter Two

| Stradsett, Nr Downham Market. Norfolk PE33 9HA UK
View Calendar
ACMOC

Antique Caterpillar
Machinery Owners Club

1115 Madison St NE # 1117
Salem, OR 97301

[email protected]

Terms & Privacy
Website developed by AdCo

Testimonials

"I also joined a year ago. had been on here a couple of times as a non-member and found the info very helpful so I got a one year subscription (not very expensive at all) to try it out. I really like all the resources on here so I just got a three year. I think its a very small price for what you can get out of this site."
-Jason N

Join Today!