![]() Find crawler, wheel and swamp dozers on Machinio. Im guessing an O ring in the control guts failed. Komatsu D37, D37PX-23, D37PX-24, D37P-5, D37E-2, D37EX-21, D37EX-23 and D37PXi-23 dozers for sale. But i have no engagement in reverse at all at any throttle. ![]() Never forward, that was always fine and still is normal. It used to take a while for the machine to engage reverse when cold. The rods are all there and moving the parts they should so its definitely internal. I have forward in all 3 speeds and i have all 3 reverse detents on the stick. Change em out, a universal O ring kit is fine. Use soft stuff so it takes all the wear.ĭont be afraid to pull the inching valve right out, its all contained and you wont lose any fine parts but beware there are 4 small metal hydraulic feed tubes that have O rings at each end. 040" of material removal then install a bolt or american pin. I drilled most of it oversized to the first SAE dimension it came to which was only like. You need to replace these worn metric pins with new stuff or atleast weld up and regring the grooves worn into them. If you tighten the brake bands youll just drive through them so dont. Or sometimes it will and sometimes it wont depending on the slop stackup. They are pushed by cam follower type rollers, and with time the cumulative slop in control pins, linkages and bushings makes it so that the cam follower wont push the spool far enough. Its under the battery tray and has two small hydraulic spools that disengage each respective drive. mm 1.62 m3 2.30 m3 2875 mm x 895 mm 915 mm 320 mm 420 mm 900 kg 180 kg 0. KOMATSU D38 Crawler Dozers for sale near you at TractorHouse. The steering was perhaps a little weak but basically everything worked fine.Īttached a couple of photos of what I've used it for.ĭ31P-18 and maybe other models have an inching valve on the top very back of the rear end housing in center. with dozer SAE LH2 ground ground control unit pressure D37E-5 13'0' 1.95 yd3 2. Up to the time the track adjuster broke, I'd had the machine a couple of years and hadn't really done anything other than routine maintenance. I've since replaced the seals in the left track adjuster and at the same time replaced the seal on the final drive at the left sprocket. I put it in reverse and turned right, then back forward to exit the trench. Maybe it was because the left chain had become so slack. Up to that point, the left steering had worked fine. I'm not sure why, but it wouldn't turn out of the ditch to the left. When I realized the chain was slack, I leaned on the stick pretty hard to the left and tapped the brakes to try to get the machine to exit the trench by turning left. Unknown to me, the track adjuster was going out on the left side and the chain went slack. When the left steering "broke" I was going along the side of a trench I was cutting with the blade and the dozer was tilted to the right at a pretty decent angle. I'll try what you suggested and let you know.
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