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pattucker 
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Joined: 15 Sep 2012
Location: United States
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 Topic: HD-4 crawler loader
Posted: 15 Sep 2012 at 1:16pm |
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Great loader but has leak from shuttle shift fluid up in housing does any one have experience with this and how to fix . Also for person with the HD-6 on what kind of trans fluid my manual saws type F
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41932
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Posted: 15 Sep 2012 at 2:02pm |
Torque converter uses Type A Dextron fluid. Finals and trany use gear lube. HD4 is nothing like a HD6 , one is industrial machine other is Construction line
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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mickymcdee
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Joined: 19 Feb 2013
Location: Ontario, Canada
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Posted: 19 Feb 2013 at 4:22pm |
Is there much difference between type A and F dextron?
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
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Posted: 19 Feb 2013 at 5:11pm |
Main thing is the amount of friction used on the clutches in the automatic transmissions . how much difference it would make in the shuttle clutch friction plates ? Type A suffex A - it seems now has been re designated into new fluid specifications.
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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aras
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Joined: 28 Jul 2011
Location: Weston, WI
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Posted: 20 Feb 2013 at 8:31am |
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Where is it leaking? I have a 653 with leaks around the shuttle control valve by the batteries that I have not been able to stop. All new o rings and still it leaks bad. Is this a common problem?
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mickymcdee
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Location: Ontario, Canada
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Posted: 20 Feb 2013 at 10:37am |
Thanks, our HD4 does have a distinct leak, but not out of control. We are using it to move snow, but too damn cold to figure where the leak is....spring is coming!
However, I checked the fluid on the dipstick and it is more brownish than ATF fluid and seems like a bit heavier as well, so I'm a little concerned about adding the wrong fluid.
Anybody got any thoughts?
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Coke-in-MN
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Location: Afton MN
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Posted: 20 Feb 2013 at 1:00pm |
On the leak on the control valve - the spool could be pitted or the bore worn enough to allow leakage - OR the "O" rings could be the wrong size . I put all new rings int omy control valves both on the shuttle and the bucket controls and had no problem with leaks after . Rather than buying the full kit to rebuild i just did the rings themselves. Make sure the material of the "O" ring is right material if you used other than AC rings . On the color of the ATF - if it is brown - time to change it as it is contaminated with either moisture, particles or the wrong fluid added at some time.
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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mickymcdee
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Joined: 19 Feb 2013
Location: Ontario, Canada
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Posted: 20 Feb 2013 at 2:03pm |
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Thanks Coke!
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aras
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Joined: 28 Jul 2011
Location: Weston, WI
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Posted: 20 Feb 2013 at 2:40pm |
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Thanks Coke! I did by the rings from Minn Par. I should have measured things but was in a hurry! Maybe I should just look for a replacement valve and test the shuttle pressure
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Coke-in-MN
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Posted: 20 Feb 2013 at 3:11pm |
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In some cases where a "O" ring will not seal it is because the recess into which it fits is to big and ring does not form right - a backer washer is used also to make sure ring fits properly . These are found mostly in hydraulic cylinders but can be used in other positions also. (washer is a composite material and fits into groove along with ring.)
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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aras
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Joined: 28 Jul 2011
Location: Weston, WI
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Posted: 20 Feb 2013 at 3:21pm |
 Coke-in-MN wrote:
In some cases where a "O" ring will not seal it is because the recess into which it fits is to big and ring does not form right - a backer washer is used also to make sure ring fits properly . These are found mostly in hydraulic cylinders but can be used in other positions also. (washer is a composite material and fits into groove along with ring.) |
Interesting suggestion. Know of a good place to find used parts for these as you are relatively close to me. I really need the linkages for the power steering clutches as I just have some cables in there now
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