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Case IH 685 XL - A/C Question

M

Mike in Blaine

New User
Ran across a 1985 685 XL today, (serial number was in the 4000"s but all the books say the 685 starts at 15000 so not sure what that"s all about.) Local trade from a dairy farmer. MFWD, nice cab, 8x4 w/electric t/a (no shuttle though) and adjustable rear axles (kinda of rare on the 85 series machines?) It"s never had a loader on it. Everything seems to run out fine except the air conditioning and the ether injection system (leaks around the can.) More concerned about the a/c. The a/c compressor never seems to kick in when turned on, fan blows but no cold air. Question: Is there an easy way tell if it has been converted to R134a? If it's still R12 how big of a job is it to make the update? Expensive? $500-$1000? Been running open stations for the last 30 years but dad is getting older so now looking at cab machines.
Thanks! Mike
 

If you are in North America, should not have been an 1985 685 XL, 87 appeared to be the first year for the XL cab in North America (cab was out since 82 or so in Europe)

Bar axles aren't that common.

8x4 with TA gives 16F/8R and your range lever acts as is an unsychroed shuttle lever between L & R

A/C kicking on and off usually means low system pressure....but you say no kick on at all....might be too low to kick in, so might just need a charge, might have something major gone and leaked all out.
 
Thank you. Called a CaseIH dealer and found that it is about $700 in parts to convert over to R134. Also did some poking around in the European parts websites and it seems that this machine was made in and for England. Looks like the International 685XL was made from 81-85 ending in serial number 4091. Then the CaseIH 685XL was made from 85 through 87 so a serial number in the 4400 range would be possible. Any good way to look up s/n's for the European machines? So far it looks like the parts have most of the same numbers as the ones made for North America. No coolant in the oil, front axle is tight and the parking brake works fine. Will also try and see if there is a coolant filter attached. Good clarification on getting 16 effective speeds with the t/a.
 
Hi Mike, the 685XL must be a very late model almost a 695 as the electric controlled T/A was not installed until 95 Series, previous models had lever on the left of steering column for T/A. Coolant filter was also added on 95 Series. 695 and 4210 should be be very similar.

JimB
 

JimB2, I've driven 85 series with the "T/A" controlled by toggle switch, it's shown in the manual that came with our 1987 485. Interestingly the manual shows "IH" era pics so it shows both the lever T/A and electric switch detail, even more interesting is the manual covers the 485L and 485XL which weren't sold here at all.

CIH 685XL was sold in North America from 1987-1990.
CIH 685 was 1985-1990


Mike, should be a great tractor by the sounds of it! I'd get the A/C pressure checked before putting any money into it.
 
When a R12 system is converted to R134A the fittings for the gauges are supposed to be changed also. Each refrigerant is to have it's own unique fittings. R12 fittings are 1/4 inch male flare. R134A fittings are male couplers, two different sizes.
 
(quoted from post at 16:03:22 03/12/11) When a R12 system is converted to R134A the fittings for the gauges are supposed to be changed also. Each refrigerant is to have it's own unique fittings. R12 fittings are 1/4 inch male flare. R134A fittings are male couplers, two different sizes.
Click to expand...

SUPPOSED to...
you never know.
depending where you live, you might be able to find a cheap pressure gage for all refrigerants--it looks like a tire gauge and costs around $5 but it's too cheap to be accurate for service. Then you'll have an indicator if you are at 0, some, or nearly fully pressurized.

Then find someone that will come out with a refrigeration identifier (or loan you one). who knows what you have in there. You could have some super flammable concoction in there or any number of acceptable r12 replacements that are SUPPOSED to have a sticker or you might have some 134 in there or even a 134 r12 mixture... weird stuff happens.

karl f
 
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