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D2 steering clutches

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3 months 1 week ago #229592 by bpusmc
D2 steering clutches was created by bpusmc
My right steering clutch is not functioning properly. Many posts I have studied suggest exhausting all options before concluding the steering clutches are bad.

Here’s the symptoms:

- will not turn right
- on flat terrain, very slight pull to left at all times
- steering lever and full brake will turn machine slightly right, then machine pull left when released
- uphill, constant drift to left
- downhill, right steering lever pulled full back allows very slow right drift, adding brake stops machine 
​​​​​​- left steering lever and brake function normally

My attempts to remedy:

- adjusted steering clutches
- flushed brake and steering clutch compartments with kerosene
- ran machine hard for about an hour using right steering lever while applying hard left brake and other techniques suggested here
- all visible steering clutch linkage appears in tact and functional 
​​​​​​- left brake linkage and lining are free and functional 
- right brake pedal is very stiff, pivot inside brake compartment appears to be the source of the binding

Anything else I should try before I tear into the finals?





 

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3 months 1 week ago - 3 months 1 week ago #229593 by neil
Replied by neil on topic D2 steering clutches
Those symptoms to me point to either your left pinion shaft is broken or the teeth are worn/rusted off the left steering clutch plates. Start with the left side, repair, and then retest. You may also find that the bevel gear bearings are worn or have too much axial play as well.
The rationale is as follows:
- won't turn right >> no power to the left track to drive the tractor to the right
- slight drift to left >> only right side is powering the tractor so eventually the right will "turn" the tractor
- pull right clutch and apply brake >> nothing powering left side
__PRESENT

Cheers,
Neil

Pittsford, NY
Last edit: 3 months 1 week ago by neil.

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3 months 1 week ago #229596 by Sasquatch
Replied by Sasquatch on topic D2 steering clutches
Beyond what Neil already listed, only other thing that comes to mind is possible twisted off bevel gear shaft - been there done that got the T-shirt lol.
The following user(s) said Thank You: Markds3

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3 months 1 week ago #229601 by d2gary
Replied by d2gary on topic D2 steering clutches
A quick check for metal shavings or chunks in the bevel gear housing would give you an idea of a mechanical failure.

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3 months 1 week ago #229604 by side-seat
Replied by side-seat on topic D2 steering clutches
Steering clutch on left totally gone and slipping or stuck open (released)?
Is there play in the clutch brake drum when you take a pry bar and wiggle it? That would tell you if the pinion shaft is snapped off.

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1 month 2 weeks ago #231034 by bpusmc
Replied by bpusmc on topic D2 steering clutches
Thanks for all of the thoughts in the previous posts.

Dad and I got the final drives off this week. We did the right side first and it came off very easily. Three hours later, after much struggle, the left side was off. Both side appear to be well worn and the left side was definitely not functioning.

Now I am seeking advice on removing the clutch assemblies and inner drums.  I have read the service manual and I have watched Squatch’s YouTube video. Is there any other method?

 Thanks,
Chad

       
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1 month 2 weeks ago - 1 month 2 weeks ago #231035 by Steve A
Replied by Steve A on topic D2 steering clutches
You have the hard part done. Now you need 2 pieces of threaded rod, from memory its 1/2 inch, get grade 8 because I have pulled the soft stuff in half. The threaded rod screws into the clutch, then you use a piece of metal such as 2 inch square tubing to make a cross bar bridging the threaded rod. Back the big bolt out about 3 turns on the steering clutch. Then use a hydraulic jack or a porta power to pop the clutch loose. I like a porta power with a hose so I can keep back a safe distance. I will look for a picture.
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Last edit: 1 month 2 weeks ago by Steve A.
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1 month 2 weeks ago #231036 by side-seat
Replied by side-seat on topic D2 steering clutches
Seems like that's the way it always goes; One side comes off real easy the the other side nothing but trouble. I just looked through my thread on the Motor patrol and see I didn't post any pictures of pulling the steering clutches.The CAT15 is very similar other than the D2 has splined tapers. Steve A is correct, make sure you use the B7 all thread. If you don't have a hydraulic setup; I've gotten away with a Snap-on bar puller with screw. I believe 10ton . Tighten it up with a impact then give it a rap with a big sledge hammer. That may get it free but the spline tapers may be tougher. We've used hydraulic and sledge hammer too.

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1 month 2 weeks ago - 1 month 2 weeks ago #231040 by edb
Replied by edb on topic D2 steering clutches
Hi Team,
please leave the clutch retaining nut on the shaft and screwed out to be about flush with the end of the shaft as when the taper lets go the entire assembly will fly across the shop sometimes with serious results--things or people get broken--SAFETY FIRST always around these things.
Cheers,
Eddie B.
Last edit: 1 month 2 weeks ago by edb.

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1 month 2 weeks ago #231042 by ChuckC
Replied by ChuckC on topic D2 steering clutches
You are going to need some type of hydraulic ram to push the clutch back on. If you are not replacing the outer drum it does not need to come off the final drive unless you want to replace the seal. Be very careful not to hurt yourself. Good luck

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