CASE SC clutch

jicaseman89 · Jul 28, 2015

serial#5518546. SC.
non live pto is there any adjustment to this clucth noticed it sliping going uphill while raking hay and tonite i was planting wheat in a wet spot dry now
and it would slip almost to a stop when turning pulling a 10 ih 620 with hundred pounds or less of wheat seed.
second can you put a dry clutch in these?
thanks Loren

Patsdeere · Jul 28, 2015

As far as I know, oil clutch is only
option. They work fine when adjusted
correctly. Yes they can be adjusted through
the square cover on either side of the bell
housing. Push the button in and spin the
ring until there is friction, then back it
off a little. Will work just fine, as long
as you have enough material left on the
disc.

Case Nutty 1660 · Jul 28, 2015

that oil clutch will out last a dozen dry ones,,, adjust a few clicks and she will be golden for another 25 years or more

Christopher Mikesell · Jul 28, 2015

They don't require special clutch pad material when you re-line the clutch disk. The standard organic fiberglass/brass pad material is a good replacement.

jicaseman89 · Jul 28, 2015

thanks guys i will take a look at it and let you know if i have any other questions.
Loren

jicaseman89 · Jul 28, 2015

case nutty what year would my SC be?? the guy i bought it from thought it was a 50 or 51.

Christopher Mikesell · Jul 28, 2015

The rule is: "The first two numbers, subtract 4, gives the model year."

5518546 SC => 55 - 4 = 51

Therefore, it is a 1951 model. Case started production for 1951 in the fourth quarter of 1950, and continued until the beginning of the fourth quarter of 1951.

jicaseman89 · Jul 29, 2015

ok thats good to know thanks Chris
Loren

John Saeli · Jul 29, 2015

Christopher: It is highly unusual that I would have to chime in on 1 of your posts, but whenever a person takes a clutch into a re-builder, it is very important that the re-builder is alerted that the clutch is oil bath. I cannot speak to the material used, but the facing must be grooved to let the oil escape, and air enter when the clutch is disengaged. That is a major reason an oil bath clutch will "hang up" when disengaged, it will actually form a vacuum when air cannot enter & break the seal.

Ron Sa · Jul 29, 2015

To adjust the SC or DC clutch remove the left side cover, release the clutch, and rotate the engine until the pin circled in the picture is visible.

A pair of long nose vise grips works well to PULL the pin out until its spring bottoms out.

Hold the pin pulled out and roll the collar towards the right side to tighten the clutch. May have to be a little creative to accomplish this.

After rolling the collar a couple of degrees, release the spring loaded pin. Continue to roll the collar until the pin slides and snaps into a notch.

Engage the clutch. Five to ten pounds of push on the clutch lever to snap the clutch into engagement will probably be enough. If less that five to ten pounds, repeat the process described above.

Ron Sa · Jul 29, 2015

PS Correction to my adjustment instruction. With the clutch released and rotating the engine, the assembly with the adjustment pin may not rotate. Rotating the belt pulley will definitely rotate the assembly and provide a more precise position of the adjustment pin.

jicaseman89 · Jul 29, 2015

thanks for the info after supper and checking on here i went out.to investagate and i was looking for a pin that pulls out like the pto on my 830 and 930s but on my SC its a button you push in and slide the notches passed went the wrong way first time got it right second time its good now thanks to all.
Loren

CASE SC clutch

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