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h3 reverser
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jughead View Drop Down
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Joined: 14 Sep 2012
Location: TENN.
Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jughead Quote  Post ReplyReply Direct Link To This Post Topic: h3 reverser
    Posted: 04 Jul 2013 at 11:56am
is it ok to use the reverser partially  engaged to help control the speed of the dozer. i have purchased 2 different manuals for this machine and they do not help. this old man has too much distance between feet and hands to the brain to use this thing effectively. thanks to anyone that will help.
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Tracy Martin TN View Drop Down
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Joined: 11 Sep 2009
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Points: 10728 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 12:14pm
Speed is controlled by your gear.The reverser is just that, changes direction of machine. Clutch machine, stop completely, then change direction, let out on clutch, accelerate and you are good to go. Don't lug engine, a decellerator pedal or accelerator pedal helps greatly. HTH Tracy Martin
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jughead View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jughead Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 5:14pm
thank u mine will crawl forward or back slow or fast by use of the lever but what i can see looks like one would be slipping the clutches or bands which wouldnt be good. it really acts like a torgue converter
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orangeman View Drop Down
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Points: 1841 		Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 5:28pm
Would be interesting to see an H-3 with a foot pedal have never seen one.  They did put a foot pedal on the 615 Loader tractor.  The shuttle in the 615 is the same as the H-3 you can creep with the shuttle or lock it in either way the shuttle clutch runs in a bath of oil.  Creeping with the shuttle either in forward or reverse will not hurt the machine or the clutch.  

I would have to check my manuals but I believe the H-4 and HD 4 came standard with a foot pedal.  
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jughead View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jughead Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 6:09pm
Originally posted by orangeman orangeman wrote:

Would be interesting to see an H-3 with a foot pedal have never seen one.  They did put a foot pedal on the 615 Loader tractor.  The shuttle in the 615 is the same as the H-3 you can creep with the shuttle or lock it in either way the shuttle clutch runs in a bath of oil.  Creeping with the shuttle either in forward or reverse will not hurt the machine or the clutch.  

I would have to check my manuals but I believe the H-4 and HD 4 came standard with a foot pedal.  
u just made my day. thank u thank u
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Tracy Martin TN View Drop Down
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Points: 10728 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tracy Martin TN Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 10:07pm
I don't have a manual on a H3. It is basically a D15, they could be had with foot pedal. My HD4 came with no pedal. You could get either , accelerator or decelerator. Since the machine works best at rated speed ,I prefer the decelerator pedal. Sorry for any confusion. Tracy Martin
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Ages Cat View Drop Down
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Points: 696 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ages Cat Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 2013 at 10:19pm
The shuttle snaps into a locked over center position which compresses the clutch discs, thus not allowing them to slip. By not engaging the over center of the shuttle,  you are inducing slippage into the shuttle pack. I split our HD3 a few years ago and replaced the clutch discs. It  is a big job as the tracks, and tractor drive train need to be split to access it. If it works keep it working. 
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Eric B View Drop Down
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Points: 965 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eric B Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jul 2013 at 1:15am
I agree with Ages Cat.....my opinion is that in need of careful maneuvering with light or no work load while slipping the fwd rev clutch is OK. Under workload slipping the discs, be it in oil bath, still produces a lot of heat, done repeatedly will result in pre-mature wear.  
Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!
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jughead View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jughead Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jul 2013 at 7:18am
for-warned is for-armed will heed accordingly. will treat the shuttle as a standard clutch which i grew up with. thank for ALL the info.
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orangeman View Drop Down
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Points: 1841 		Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jul 2013 at 5:04pm
Jughead: I went back to reread your originally post.  Your question centers on using the shuttle clutch (i.e. reverser to control the speed of the dozer) Ages Cat, Eric B and Tracy have provided some good information.  As a primary use of operation it would be good to fully engage or disengage the shuttle in the desired gear you have selected.  As for slipping or what I would describe as "creeping" I would reserve the use of that technique (i.e. not fully engaging the shuttle) to a limited basis.  If your shuttle is working properly now i would not get overly worried about "creeping"  a little bit for very short term specific situations.  If the oil cooler,pump and oil level is not to spec, then I would check those and make sure they are all working.  

To clarify a little, the Allis Chalmers Shuttle Clutch was designed to run in oil.  The shuttle clutch housing is designed with an internal pump that is connected to a supply and return line that is attached to a small heat exchanger.  The heat exchanger does just that it exchanges heat from the shuttle clutch operation to atmoshpere to keep the oil at a reasonable operating temperature.  It is mounted in front of the radiator and secured to the radiator cowl.  As noted above, the shuttle clutch operates fore and aft over center and snaps into place either forward or reverse.  The neutral detent position is just that neutral.  The distance between neutral and engaged is the area that would allow you to creep.  It is true that during limited creeping that heat would be generated, but the job of the oil is to reduce friction between the contact portions of the clutch.  I have seen Allis Chalmers Shuttle clutch and Power Director tractors that have seen a fair amount of slipping or "creeping" that have in excess of 5,000 hours.   These machines were not abused and were single operator machines. 

In close, there are a number of ways to operate a machine, as you can see above, there is variation on use and application.  All of the advice is very good, the only way for you to determine what works is to go out and run the machine.  Good luck with your H-3!
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jughead View Drop Down
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Points: 39 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jughead Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jul 2013 at 6:31pm
i guess my original post was worded slightly wrong. it doesnt creep on its own i am able to use the lever to creep to full speed. my concern was damage to the clutches by doing that. thanks again to all. will act accordingly 
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