cat 311

[CAT_D-8N]

Ok we have a 311 cat at work that doesn’t like to travel or turn after it gets hot maybe a hour of working hard my 1st thought was the finals are going out I talked to a good friend that used to work at ho Penn the cat dealer in ct and he said it could be the turn table where the oil flows through to get to the finals any ideas from you experts on here

 

[JoeS1989]

Sounds like the finals to me! We had the exact same problem on a Komatsu PC180LC-7 that works our recycling yard! Sorted after we put two new drives on it! Is there any oil in the drives itself?

Joe

 

[Pecord Exc]

there are a couple of o-rings in the swing assembly, we had Penn come out and fix the same problem with our 312b, less than $500 later and she is as good as new. Call them out to take care of it, it is a easy fix but tough to do right if you catch my drift.

 

[Chris91786]

Sounds like a swivel/final drive issue

 

[enviroset]

I have a 325 does the same thing. Thanks for the info.

 

[KMB83]

i recently had cat come out and replace the o-rings in the swivel from the turn table to the undercarriage on my 320.

with labor it was in the $800-1000 range. mostly labor.

runs much better.

id check there first....

 

[Per Eriksson]

Ditto, I strongly advise to reseal the swivel, you'll do it in a couple of hours.

 

[TopDeadCenter]

Triple ditto on the swivel. In my fleet I see this in my Cat Excavators at around the 6,000 - 7,000 hour range.