wrong brand payloader question
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=41228
Printed Date: 23 Jun 2025 at 2:19pm
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Topic: wrong brand payloader question
Posted By: darrel in ND
Subject: wrong brand payloader question
Date 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 |
Replies:
Posted By: Mactractor
Date 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. |
Posted By: HD6GTOM
Date 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. |
Posted By: Gary in da UP
Date Posted: 01 Dec 2011 at 12:41pm
| Try asking here....http://www.heavyequipmentforums.com/index.php |
Posted By: Dnoym N. S. Can.
Date 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 - http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt |
Posted By: darrel in ND
Date 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 |
Posted By: Dnoym N. S. Can.
Date 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 |
Posted By: powertech84
Date 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. |
Posted By: darrel in ND
Date Posted: 03 Dec 2011 at 8:18am
| It is not a hydro, it does resemble the one in the picture |
Posted By: Dnoym N. S. Can.
Date 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 |