D9 fuel leak

I don't have the info on the 34A but the 19A suggested limit is 10 drops per minute each per front and rear seal when warm......more is expected when cold.

I suspect the 34A would be the same.....also that amout is stated for the 35A D8.

Hi Team,
data from the Cat School Books.
All 3 Stage fuel type convertor specs are the same.
Cheers,
Eddie B.

Will a guy hurt anything running the tractor with a somewhat greater leak than the 10 drops per minute warm? This tractor leaks at night when parked, Is that a big problem? What would it cost to replace the seals? Thanks Warren

Excessive leakage can overtax the drain system and result in diluting the oil and grease which lubricates the converter front and rear bearings.

Can't help with the cost estimate but the converter would have to be pulled and dismantled to gain access to the seals. Not all that difficult to do other than being one big "grunt" job.

Hi Team,
the seals are what we at The Dealer knew as "Refrigeration Seals" they are a steel face running against a carbon face. We used to send them to a place local to get them lapped and always had a spare pair on hand.
There is possibly no problem operating the unit with the seals leaking within reasonable limits. The main drawback is the fuel used/lost and environmental concerns.

One "major must" is to refill the fuel tank at the end of each day. The fuel and tank tank are always warm due to it being the fluid medium on these units. Condensation from moisture laden night air will foul the system as the air in the tank cools and the said air is drawn into the tank and condenses onto the tank walls, this can cause excessive wear and other water laden fuel related problems.
If I recall there was a fairly regular tank and filter housing drain service needed for this reason on these units, possibly weekly. Just crack the drain valves to let out any accumulated water/sediment. Also the fuel cap breather needs regular service for the same reasons.
Hope this helps,
Cheers,
Eddie B.