Heavy Equipment Forums Heavy Equipment Community

running hot

jl concrete ยท 2014-07-09 15:51

have a CAT 304 CR mini excavator keep running hot put a new belt on what to do next

Replies6
  1. #1Delmer2014-07-09 22:01

    Clean the junk off the radiator. If it looks clean, shine a flashlight through it and look from the other side, and see if it still looks clean. Or just take it off so you can clean it to start.

  2. #2Nige2014-07-10 07:53

    Usual problem is trash lodged in between the radiator and the oil cooler. It might LOOK clean, you might be able to see daylight through it, but you can pretty much guarantee it isn't clean. The only sure way I've seen is to pull the radiator, split the cooler off it (at which point you'll see what the problem REALLY is) and clean everything, then slot it all back together. Below is a sample photo of what I'm talking about, this looked clean from the outside ..............

  3. #3Garrie Denny2014-07-11 00:38

    Nige,clean or not half that radiators copper cooling fins are bent,restricting or stopping air flow through the unit,they sure arent helping things

  4. #4Garrie Denny2014-07-11 00:41

    Sorry,looked again closely if that's junk in the fins it was really blocked.

  5. #5CM19952014-07-11 06:47

    Yep, what Nige said. The only way to really clean a rad and coolers on compact equipment is to split all the coolers and wash each one separately. You should be able to remove each cooler without detaching the hoses to get enough room to wash them, although it may end up being a 3 man job like a Bobcat..

  6. #6Nige2014-07-11 07:09

    Compact machines seem to bring challenges all of their own, there isn't enough space in them to swing the proverbial cat. The upside is that the components in question generally aren't very heavy.