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News: Wishing you folks all a very Merry Christmas! From Blake Malkamaki and Cletrac.org.
 
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 1 
 on: May 11, 2022, 03:39:59 PM 
Started by Marion7200 - Last post by Marion7200
19th Annual Old Construction & Mining Equipment Show September 10 & 11, 2022 New Athens, Ohio.  $5.00  Harrison Coal & Reclamation Historical Park grounds 43672 Stumptown Rd  New Athens, Ohio (Ohio 519 between U.S. 22 and New Athens, Ohio)  Show includes operating & static displays of construction equipment, mining equipment, crawlers, trucks, models, history displays, and more.  Bring your construction equipment, mining equipment, crawlers, and trucks for some digging fun or static display.  Saturday 10am-6pm Sunday 9am-4pm.  Food will be available on the grounds.   Swap and flea market area.

We will celebrating the 30th Anniversary of the Harrison Coal & Reclamation Historical Park, Incorporated in 2022. 

The 19th Annual show is dedicated to the memory of Dal Watterson and Norm Glessner

 www.facebook.com/ocmes   
oldironshow@yahoo.com
740-312-5385

 2 
 on: May 11, 2022, 03:37:56 PM 
Started by Marion7200 - Last post by Marion7200
2nd Annual Spring Old Construction & Mining Equipment Show May 28 & 29 2022 New Athens, Ohio.  $5.00  Harrison Coal & Reclamation Historical Park grounds 43672 Stumptown Rd  New Athens, Ohio (Ohio 519 between U.S.. 22 and New Athens, Ohio)  Show includes operating & static displays of construction equipment, mining equipment, crawlers, trucks, models, history displays, and more.  Bring your construction equipment, mining equipment, crawlers, and trucks for some digging fun or static display.  Saturday 10am-6pm Sunday 9am-5pm.  Food will be available on the grounds.

Swap and flea market area.

We will celebrating the 30th Anniversary of the Harrison Coal & Reclamation Historical Park, Incorporated in 2022. 
 
The spring show is dedicated to the men & women that lost their lives in the construction & mining industries and to those who worked in the construction & mining industries no longer with us. The show is also dedicated to the men and women that served our country and no longer with us.

www.facebook.com/ocmes   
oldironshow@yahoo.com 
740-312-5385

 3 
 on: February 02, 2022, 02:20:04 PM 
Started by we@nb - Last post by eyeball-shifter
I think the OC-4s just run cool.  I can't get mine up to temperature on cold, winter days.  I had mine on fast idle for 45 minutes and could put my hand on the engine and it was just warm, the temperature outside was in the high teens.  I pulled the dipstick and touched the oil and it was just warm, parts of the radiator were a bit warmer, but not hot at all.  I didn't register anything on my temp guage.

 4 
 on: July 10, 2020, 08:01:12 PM 
Started by M2nut - Last post by M2nut
Hello everyone.   Iím wondering if anyone can tell me the logic behind the hood numbers on m2 cletracs.   Iím puzzled why the data plate ordnance numbers are 3 to 4 digits  and the hood numbers are 6 digits ?  There are  a few period photos that some early cletracs that have 5 digits painted on the seat rail side .  Almost all period photos have the first digit being a 9, which probably was the serial number range assigned to the type?  Any ideas?

 5 
 on: May 11, 2020, 09:31:39 PM 
Started by donlaflam - Last post by Robert Barbour
The rod spring 37202 is the return spring and should have pressure on the housing when the clutch is engaged.  The sleeve spring is an anti rattle spring the holds the release bearing on the yoke.  The important thing is to have the 3 112 211 screws all set to the correct length.

 6 
 on: April 15, 2020, 10:38:17 AM 
Started by donlaflam - Last post by donlaflam
Good morning everyone-

I am a new to this group and a new HG owner with some basic mechanical knowledge, but learning as I go.  last fall the clutch stopped functioning on my HG, I tried many of the tips I found online about putting a load on, etc, however I decided to pull it into the barn and take it apart along with a few other projects that needed to be done on it. 

I pulled the case yesterday and found that the friction plate was totally shot.  I'll be replacing that along with the majority of the bearings inside.  My question, however is in regard to the springs within the assembly.  should I replace these?  they seem to function properly, however due to their age i'm sure they have lost some of their tension.

the two i am most concerned about are :

1.  Throw out sleeve spring  112754
2.  Yoke rod spring  37202

any advice you could offer would be most helpful.

thanks in advance,
Don

 7 
 on: March 23, 2020, 12:54:03 PM 
Started by sparky mark - Last post by sparky mark
  Just wondering if this was a patented invention or not.
  "With a double-cut sprocket, the tooth pitch is half that of the chain. Therefore, the number of effective teeth is half the number of actual teeth. If the sprocket has an odd number of teeth, the number of effective teeth is fractional, and each tooth engages the chain only on every other revolution. This cuts tooth wear almost in half, nearly doubling sprocket life. The same is not inherently true for sprockets with even numbers of teeth."
  My model "E" CLETRAC had an odd number of teeth on the sprocket. I believe that the CAT model "60" also had an odd number of teeth on the sprocket.
  Seems like a very clever idea.
  Did all CLETRAC models do this? Did most manufacturer of tracked tractors do this?
Thanks in advance for any replies.


 8 
 on: March 15, 2020, 12:12:45 PM 
Started by 1956oc3 - Last post by Subgates
Not being on fb at all I'm loving that.

Thanks Blake

 9 
 on: February 26, 2020, 06:53:04 PM 
Started by cork - Last post by Robert Barbour
The pump shaft is gear driven from the crankshaft at engine speed.  The shaft extends through the pump to drive the mag.

 10 
 on: February 18, 2020, 08:42:19 AM 
Started by cork - Last post by Stanton
Is there no way that pump and mag get unsynced?

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