D4H LGP opinions

Too new for me but I have seen reference to problems with track truck pivot housing. Look them over closely for cracks.

Thanks Old Magnet, Will look that over carefully.

i have a 87 D4H II powershift tranny. 70% wore out UC...unknowingly bought it that way. I knew it was a high hour UC but it turned out to be more wore out then i knew. ANYWAYS yes the track pivot is of concern while mine are not cracked up, one side was completely wore out (as in bearings gone, dry no oil, packed full of dirt and rust and sheared off bolts under cover plate. In other words the only things keeping the track frame from falling away from the rest of the dozer was the equalizer bar and the track itself! The track frame was free to wander back and forth on the pivot shaft till track tension held it in place. Driving forward everything showed no signs of a problem HOWEVER backing up and locking up the tracks (steering) revealed the frame wanting to drift away from the rest of the dozer. Looking at the dozer from the back you could clearly see the misalignment after backing up and stopping. Whoever owned it before me ran in in this condition looks like for a long time. Since i bought this as a farm dozer to piddle around on...a DIY fix without taking apart 1/2 the whole dozer was in order. Plus i dont have a shop that can handle heavy equipment disassembly. But the fix is another story. If i was using it for a business id opted to fix it right...but putting maybe 100 hours on it in a year...no.

Anyways...moral of this story...Ck. track pivots for oil. if their holding oil then your good to go. As far as the track frame cracking around the pivots...i havnt seen much at all of D4Hs only bigger High track models

Cheers!

ser # tells me its a direct drive model not a power shift.(i think) Does it have a 6 way PAT(common) or an Trunnion mount 4-way blade?(uncommon)

We went to look at it today. It has been well looked after. Has near new track chains, pads and sprocket segments. No sign of cracks or movement of the track frame when in operation. Engine exhaust is clear. It is a 1995 machine and is powershift with the 6 way PAT blade. They also had a D5C but the sprockets are sharp and the track bushing have broken though to the pins. The rollers are not great either. The exhaust is blue. Thanks for the reply.

The info I have shows it to be a Power Shift Low Ground Pressure Series lll machine with larger transmission, larger torque converter and Heavy Duty Sealed and Lubricated Track as standard.
My info shows s/n 1699 to 1987 as being 1996 production but this source has proven to have lots of s/n errors.
Seems you are on to a good unit, good luck with your purchase.

Old Magnet, your info is the same as mine. This machine has standard width shoes. Was used as a skidder, has winch and arch. They wanted the extra width for stability.