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wrong brand payloader question
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darrel in ND View Drop Down
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Joined: 22 Nov 2009
Location: Hebron, ND
Points: 8585 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Topic: wrong brand payloader question
    Posted: 27 Nov 2011 at 10:21pm
This isn't Allis, but I bet someone on here can probably help me. On our JD 444A payloader, the transmission is giving us trouble. When it gets good and warmed up, the transmission pressure will suddenly go from running in the green, to nothing, and you will lose all forward or reverse function. Let it sit for an hour (or less if it is colder outside), and then it will work again. It is definitely a heat related problem, because on cold days it will work for a longer time before acting up. Also, if you aren't working it too hard, it'll go longer, sometimes all day if it is fairly cold out and just loading bales or something not too strenuous. JD dealer says the pump in the transmission is shot, and 10 grand will fix it. My only problem with that theory is that if the pump is bad, it shouldn't come back full strength, should it. If it were a pump drive issue, it would of quit and been done with for good. If the pump itself was wearing out, it should of slowly started running less and less pressure til nothing, and then not keep coming back either, right. Thanks in advance for any help. Darrel
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Mactractor View Drop Down
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Joined: 20 Jun 2011
Location: New Zealand
Points: 652 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 28 Nov 2011 at 2:06am
Dont know the machines Darrel,  but agree if pump was shot, pressures would deteriate progressively, not suddenly. Anyone with experience with those transmissions, in particular, the pressure relief valve systems they have, could help.
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HD6GTOM View Drop Down
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Joined: 30 Nov 2009
Location: MADISON CO IA
Points: 6627 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6GTOM Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2011 at 12:36pm
Darrell, If you havnt already done so, Go to Yesterdays Tractors and contact JDE Marris He knows the JD construction stuff inside and out.
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Gary in da UP View Drop Down
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Joined: 13 Sep 2009
Location: EUP of Mi.
Points: 1885 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary in da UP Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2011 at 12:41pm
 Try asking here....http://www.heavyequipmentforums.com/index.php
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Dnoym N. S. Can. View Drop Down
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Joined: 03 Oct 2009
Points: 544 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dnoym N. S. Can. Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2011 at 8:44pm
Darrel  would that have the allison transmission
2 speed forward 1 speed reverse ?? TT2421-1
here is a site to show you what i`am talking
about.   if it`s that transmission it`s the same
as the ac 545 loader has in them let me know
and we can talk some more i have the powershift
TT,TTB 2001  series service manual
hth   B:-)      Dnoym

http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt
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darrel in ND View Drop Down
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Joined: 22 Nov 2009
Location: Hebron, ND
Points: 8585 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 2011 at 1:08pm
Thanks for all of the replies, fellas. Can go chasing through cyber space for a while on that. Dnoym N. S. Can., I'm not sure if the transmission is an allison or not, but it is 2 speeds forward, and one reverse. Darrel
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Dnoym N. S. Can. View Drop Down
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Joined: 03 Oct 2009
Points: 544 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dnoym N. S. Can. Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 2011 at 8:29pm

it sound like the allison
i will try to post a picture.you have
two oil level check plug they
are located at the lower-right front
you can see them in the picture
just above the drain plug next to
the screen cover plate with the six
bolts in it and they are about an
inch apart. to check the oil before
starting remove upper plug oil
should flow if not add till it dose
and replace the plug start the
engine and operate at 1500 rpm
in neutral 1 minute add oil till
level at the lower plug

low main pressure may be cause by
1  low oil level
2  clogged oil strainer
3  clogged oil filter
4  weak or broken main - pressure
regulator valve spring
5  inching control adjustment not
fully retracted
6  oil pump worn
7  air leak at intake side of oil pump
8  internal oil leakage
9  external oil leakage
10  brake hydraulic (or air ) pressure
applying clutch cutoff valve

hth   B:-)    Dnoym

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powertech84 View Drop Down
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Joined: 17 Oct 2009
Location: Wisconsin
Points: 445 		Post Options Post Options   Thanks (0) Thanks(0)   Quote powertech84 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 2011 at 10:25pm
Is that by chance one of those hydrostatic models, instead of the torque converter ones? I think a few years ago i had a 344 with the hydro that did the same thing. I ended up pulling the hydro and was able to get it going with actually very little money.
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darrel in ND View Drop Down
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Joined: 22 Nov 2009
Location: Hebron, ND
Points: 8585 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2011 at 8:18am
It is not a hydro, it does resemble the one in the picture
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Dnoym N. S. Can. View Drop Down
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Joined: 03 Oct 2009
Points: 544 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dnoym N. S. Can. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2011 at 9:43am
Darrel there should be a name plate
on the lower left side of the transmission
with serial number ,part number,and model
number if you can find them post them here
that will tell us for sure  may not be off brand
Ac  545 , ford 655 and i think jd 444
all used the same allison tranmission
back in the mid 60
hth    B:-)       Dnoym
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