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Dave (Mid-MI) 
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Joined: 12 Sep 2009
Location: Hemlock, MI
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 Topic: Off color (IH) question
Posted: 24 Oct 2016 at 2:10pm |
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A friend of mine has an IH 300 utility tractor with a loader on it. He parked it one day to go eat his lunch. When he restarted it, the clutch would not disengage. Clutch pedal and linkage looks/feels normal. He wants me to fix it for him, so any info on these would be appreciated. Did these have a two stage clutch that stopped the tractor while the PTO continued to run? Thanks.
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Dan73
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Joined: 04 Jun 2015
Location: United States
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Posted: 24 Oct 2016 at 4:48pm |
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I don't know for sure but the 300 basically replaced the H I didn't think it had live power I thought that started with the 350. Could be wrong. Has he tried to break the clutch free by all the fun methods like chaining it to a stump? It is sort of hard to believe that condensation and rust would be the problem if he was running it just hours before it froze but it is the most common reason why they stick. Normally it is after sitting all winter though.
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old farmer
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Joined: 12 Oct 2011
Location: Sturgis, Mich
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Posted: 24 Oct 2016 at 5:08pm |
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Sound like the throwout bearing may have ate fingers on pressure plate. I think it is a single clutch and also live pto. Been a long time since I drove one in the late fifties
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LB0442
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Joined: 27 Dec 2014
Location: Boise ID
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Posted: 24 Oct 2016 at 6:07pm |
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I have a 300 utility that I redid about 15 years ago. New clutch, redid the TA, resealed the trans, rebuilt motor and power steering. I use it a little but not much. The clutch is a standard dry plate setup. The throwout bearing retainer has a lockbolt that holds it on the shaft. Could be that has loosened up but you would probably get a light pedal feel. They do have a nice cover on the bottom you can pull off and look at the bearing.
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DougS
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Joined: 03 Nov 2011
Location: Iowa
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Posted: 24 Oct 2016 at 6:54pm |
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Weren't the TAs notorious for going out on those?
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TramwayGuy
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Joined: 19 Jan 2010
Location: Northern NY
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Posted: 24 Oct 2016 at 7:01pm |
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The Independent PTO is driven by a hollow shaft that is splined to the main clutch cover. The transmission shaft is inside the PTO shaft and is a a conventional single stage clutch.
I suppose it is possible that it has a non-independent PTO, like the 'H'. I think it was an option. But the clutch is definitely not a two-stage.
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rw
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Joined: 28 Oct 2009
Location: United States
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Posted: 25 Oct 2016 at 5:12am |
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The thing I see on clutches that won't release is the dampner springs in the spline hub break and jamb the disk to the flywheel or pressure plate. Usually the clutch pedal feels about the same but the wheels keep puling. I have seen them go ahead and fall out and the clutch resume working as before, but the thing ought to be fixed for the sake of safety and the life of the trans and drivetrain.
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Dek Thorne
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Location: Pennsylvania
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Posted: 25 Oct 2016 at 6:32am |
 DougS wrote:
Weren't the TAs notorious for going out on those?
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most of them went out because people didnt know how to use them
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Tcmtech
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Joined: 15 Apr 2015
Location: Minot ND
Points: 310
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Posted: 25 Oct 2016 at 6:49am |
DougS wrote:
Weren't the TAs notorious for going out on those?
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Yea they were about as reliable as the AC torque limiter (Stock ones worked good when used lightly but were prone to give you finger at the drop of a hat anyway) but at least the factory had kits to eliminate one all together.
On top of that they did serve a useful enough purpose for a whole aftermarket industry to come to life and stay alive manufacturing far more improved designs to solve the weak factory TA design issues.  AC torque limiters on the other hand.... WellI have yet to ever be told of a aftermarket improved design or eliminator kit yet. 
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Tcmtech
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Location: Minot ND
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Posted: 25 Oct 2016 at 6:58am |
TramwayGuy wrote:
The Independent PTO is driven by a hollow shaft that is splined to the main clutch cover. The transmission shaft is inside the PTO shaft and is a a conventional single stage clutch.
I suppose it is possible that it has a non-independent PTO, like the 'H'. I think it was an option. But the clutch is definitely not a two-stage. |
Yea they are not two stage in the standard sense but the main clutch and TA clutch linkages are tied to the foot pedal and can be setup to work as a very handy two speed clutch!
Full driveline disengagement at full clutch pedal travel with the TA on at half travel and full speed at full release. I've set up many tractors for people that way and it's very handy. Especially on loader tractors.
Once you get familiar with it you rarely ever pull the TA lever unless you need it active for a long time.
It also keeps the dang things exercised so they are a bit less prone to giving up from lack of use. 
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Dusty MI
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Location: Charlotte, Mi
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Posted: 25 Oct 2016 at 7:50am |
I've had a clutch disc stick to the flywheel face when sitting all winter.
Dusty
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917 H, '48 G, '65 D-10 series III "Allis Express"
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john(MI)
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Location: SE MI
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Posted: 25 Oct 2016 at 11:56am |
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Does it still go when in neutral?
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D14, D17, 5020, 612H, CASE 446
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injpumpEd
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5075
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Posted: 25 Oct 2016 at 12:32pm |
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Pilot bearing?
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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