The D31 I used certainly had tilt both sides and plenty of it . Are all the rams the original rams supplied with the dozer ? Unless something is bent or twisted , pins worn or undone like a ram piston there is little to go wrong . Going by the picture there is no internal relief valve on the piston . There is a plug listed as number 26 . That ram is made to travel all the way in and out .
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I never had any experience with the one I operated with rams moving on their own . Have you checked for internal damage or the control valve . Oil is moving past something .
figure this out yet? I'm having the exact same issue, not tilting left. I use to be able to adjust it by doing the procedure with the block on the right side of the c frame. But doesnt work now. I can do pretty much as you have, but instead of come along I will set the left bottom corner of the blade on a block or something, then tilt blade left, it will suck the left angle cylinder in most the way. But as soon as you go to use it, it goes right back to where it was.
The tech has not come out from Wilmington, NC yet. I've done a lot of other needed work while waiting for him. It wasn't charging, a new alternator cured that. I ordered new headlights (24V LED's). Took the spring covers off and cleaned and adjusted the tracks. Ordered new filters, although the oil looks fresh. I am repainting the dozer, have the ROPS off right now. Almost ready to get back to tackling this tilt/angle issue again. I will let you know what I did or if the tech shows up what we did to get the "no left tilt" issue fixed. That's all that needs fixing now and it's ready to go. Bob, Calabash, NC.
Did this angle adjustment procedure work for you? I am having a "no tilt to the left" problem with my D31A-16 and will try this trick to adjust the angle cylinders. I believe the angle cylinders are pushing the blade forward too much to allow the blade to tilt left.
The rams are made to go to the extent of their travel in both retract and extend . You need to determine all of the components are standard for that dozer , if they are they will be the correct length . I see two shades of yellow .
The pitch looks set far too far toe forward to me , it would have to be set there so guessing they know why they want it there . Looking at the pins on your previous photo's they have been knocked around and badly for such a low hour machine . I notice to that there are two types of pin locks used , that may be standard but looks odd . The only way for a ram not to extend or contract fully is to stop the oil flow. Accepting there are no blocks inside or not enough room to move . When you bled the ram were you letting out oil or letting in air ? An air pocket will stop a ram extending or contracting . Could it be only one angle ram is working ? Both are going to have to be checked either by pulling apart or disconnecting one from the blade ( not the hoses ) and operating the other .
That rod is not original , is it the correct length . There is a range of 20 mm difference between Komatsu's specs , what is your measurement . If nothing is bent , worn and is standard original the measurment should be the same . The rod should not affect the pin to pin measurement . The one I had was set up like this and it's rod had thread showing but was welded solid .
They are magic when they are working right . Sets the dozer into a class of their own .
