JDcrawlers Messageboard

Has anyone ran a HLR transmission with the top off for inspection? I have a pressure loss in high and low. Leaving the main transmission in neutral with the engine running and the HLR in high or low I have oil gushing from around the top of the shift valve or the clutch pressure control valve its ha...

The 450E is still down due to the transmission problem in my previous post. I have closely inspected all of the HLR parts I see no signs of cracks, all seals and o rings were inspected and found to be O.K. I have a pressure loss in high and low, pressure will start at 165psi and as the dozer heats u...

Let me start with the history. The first problem occurred after the dozer got hot. While pushing if I shifted from high to low while under a load the transmission would sometimes not shift it would seem to neutralize, or if it did shift to low it may push for a short time and then stop just like it ...

I pulled the engine again yesterday then pulled the bellhousing and transmission oil pump. Upon inspection of the oil pump I found the gears set that I got from Deere to be somewhat thinner than the originals. The old gears measured 1.040 thick and the new set measure .875. This is enough difference...

I just got the dozer back together today after rebuilding the transmission. I replaced the engine clutch,transmission input shaft, transmission clutch oil pump and linkage, rebuilt the HLR assembly replacing all steel and friction disc, and all seals, replaced the oil manifold. Now all is back toget...

Today I got the transmission apart on the 450E. The engine clutch disc center was broken, the clutch oil pump was worn pretty bad and the adjuster was ran almost all the way down and badly worn out as well. The oil manifold was grooved were the sealing rings make contact and the transmission input s...

Thanks for the info. I've almost got the engine out and as soon as thats out of the way I'll open up the trans and go through the HLR clutch packs. I've rebuilt many automotive automatic transmissions and if my interpretation of the tech manual is correct on this, it seems that these stack somewhat ...

I have a 1987 450E with the HLR transmission. The transmission after getting hot would stop pulling in low and some times on cold start the dozer would take a little long to start moving. Monday while doing some light work the clutch pressure plate came apart and now the transmission is not turning....