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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Case 350 Track Adjuster

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Windancer

07-11-2004 02:33:20




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Hydraulic track adjuster seems to have
gone slack all at once. Will remove it
this morning and see what gives. Anyone
"been there, done that"? Are they rebuildable?
Maybe it blew a seal. I kind of remember this
side to need occasional pumping up a little.
Now the grease gun does nothing. Grease probably
goes in and comes out. Should I take to a hydraulic repair shop or (Heaven forbid) the
local Case IH dealer?

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David in SC

07-11-2004 03:34:07




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 Re: Case 350 Track Adjuster in reply to Windancer, 07-11-2004 02:33:20  
Windancer,
I am no expert, but I did just rebuild both of mine on my 450 and I assume yours are similar. It is simply a chrome plated 2" rod that has the last section turned down to 1.75". That turned portion is probably 3" long and on it you should have a hard plastic shim and a tough grease seal to hold the grease behind it. This end of the rod is at your grease fitting end of adjuster assembly. As you fill with grease, it pushes the opposite end of the rod against a large spring that is housed in the assembly under the top roller. There will also be a plastic shim and another seal on the main body of the rod. The shim guides the rod in the bore and the seal keeps the dirt from entering the tube. The tube bore must be clean and free of pits, I think this is chromed as well for protection. I would assume your grease seal has given up, or your tube bore is damaged in some way and allowing grease to go around the seal. Removal may differ for you depending on track wear. I was able to compress adjuster by removing all possible grease. Then remove bolts that secure recoil housing to track frame and lift out recoil housing assembly. I then removed rod from adjuster using grease gun. Did one using brute force and one using grease gun. Grease gun worked much better. This assumes you have enough of a seal to push your rod out with no load against it. Good luck. I hope you have similar adjusters so I did not waste your time.

David in SC

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