Air conditioner broke at 805 Hours

   / Air conditioner broke at 805 Hours #1  

DUMBDOG

Veteran Member
Joined
Jul 11, 2002
Messages
1,074
Location
Central ND, Central FL
Tractor
NH 1630 W-7308 FEL/ Kubota L4630GSTC W-LA853 FEL WQ/A-CC 2544
Started the Kubota today and heard a loud squealing sound. Traced it down to the one way clutch on the air conditioner compressor. To add a lot of insult to the injury, this small part sells for $375.00. I feel that the part should have lasted much more than 805 hours and two and one half years. The price of this small part is outrageous.
 
   / Air conditioner broke at 805 Hours #2  
YIKES!

Is that the price installed, or just the part? If it's just the part, how hard does the install look to DIY?
 
   / Air conditioner broke at 805 Hours
  • Thread Starter
#3  
That is just the price of the part. My neighbor at the farm, who is quite a mechanic among other things, concurred with my diagnosis and made a call to a friend that does air conditioning on the side and the cheapest one to work on them in town. He will get back to him sometime tomorrow when he gets off of his regular job. This was a lot simpler than getting the tractor to the dealer which is eleven miles through two towns and across interstate bridges to cross the river. It requires special tools as in pullers, other than that the job looks relatively simple which sometimes gets me into trouble and with these parts prices, I will let someone else tackle it.

The neighbor is a welder for a local manufacturer, builds houses on the side. He also overhauled a transmission on a old explorer of mine. He overhauled a neighbors diesel engine on a pickup. Last year when he was using my backhoe on a house he was building some bolts on the rear end went out, which involved pulling the entire rear end and transmission. John Deere's fix for this is to replace the hub to the tune of a couple of grand. He hauled the hub out to a cousin of his in Montana, they built it up, turned it town, put in a bearing and was good to go, this saved me over $1500. He has also painted his pickup and a swather for a neighbor. This guy can do almost anything. If he cannot do it, he knows someone that can get the job done and not at the prices that the machine shop will charge.
 
   / Air conditioner broke at 805 Hours
  • Thread Starter
#4  
The neighbor was unable to get in touch with the air conditioning guy, so I started to pull it apart last night. No special puller needed as we had guessed at that. However there are two clips, and the inner one is a real bear to put on with the limited access with the air conditioner lines still attached to it and the tractor. The clutch is now on and the tractor will be put back together tomorrow.

The only thing that I can say is that a service manual is a must and one of these days I should get one. This would eliminate the guessing on how things are attached and come apart before you get into the job.

As far as the DIY, with time and patience, and the right clip pliers it can be done.
 
   / Air conditioner broke at 805 Hours #5  
Showing my ignorance of A/C, did your compressor come charged, and/or do you have to charge the system since you disassembled it?
 
   / Air conditioner broke at 805 Hours
  • Thread Starter
#6  
It was just the clutch on the front of the air conditioner that was replaced, the lines were never removed from the unit, nor was the compressor itself touched, just removed the mounting bolts to access the front of the compressor. The clutch pieces go on the shaft and gear on the front of the unit.

Do not know the cause of the failure, but it did look like the clutch unit was very hot due to slippage, maybe after it froze and I freed the shaft and then saw smoke from the slippage. It was operated under extremely dust conditions last year due to the lack of rain here.
 
   / Air conditioner broke at 805 Hours #7  
Just had the same problem with a m4900. picking it up from the dealer today. he quoted me $400.00 to replace it or $150.00 to shim it. i assume the air gap was worn on the clutch. my tractor has 400 hours on it. i assume $375 is for the entire clutch, correct?

i was quoted $1200.00 for the entire compressor. pretty ridiculous for an a/c compressor.

i dont blame the dealer. if the parts cost that much he just passes it on.
 
   / Air conditioner broke at 805 Hours
  • Thread Starter
#8  
That is correct, it was the entire clutch, however in my case that did not cure the problem. The compressor is locked up, so now I am waiting for the air conditioning guy that will come out and see what the source or the problem is.
 

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