Leaking hydraulic fitting

[MF283]

This just might be a problem that you come to accept... The hydraulic couplers on my tractors don't leak or seep when under use. They consistently leak with temperature changes; i.e. when it's cold and the metal surfaces contract - I'll have drips in the shed under nearly every group of connectors.

With all 3 machines from 325 hours to 1,500 hours. No matter. And they dripped when brand new...

Of course, I don't park on the concrete driveway in front of the house, either!

Regards.

Leaks bug the fire out of me, on the older tractors, i fixed them, with the 96 & 07 model tractors, haven't lost a drop yet, even on the couplers. I'm sure i will at some point & i'll take the time to stop them.
Of course, i'm **** enough to blow debris off equipment at the end of each days work, if i do have a problem, i'm not working on dirty equipment.

Ronnie

 

[AKfish]

Leaks bug the fire out of me, on the older tractors, i fixed them, with the 96 & 07 model tractors, haven't lost a drop yet, even on the couplers. I'm sure i will at some point & i'll take the time to stop them.
Of course, i'm **** enough to blow debris off equipment at the end of each days work, if i do have a problem, i'm not working on dirty equipment.

Ronnie

I can relate... I've got 50' of hose on my vertical air compressor - I know how to use it!

I should have "qualified" my comments with the recognition that every situation is different for each of us. When it's minus 30F here and it stays below zero every night for 3-4 weeks at a stretch; SCV couplers, front differentials at the input-output shafts, will seep.

Hydraulic fluid will freeze and look like crystallized honey.

All has to do with contraction of the metal surfaces with the cold.

 

[MF283]

I can relate... I've got 50' of hose on my vertical air compressor - I know how to use it!

I should have "qualified" my comments with the recognition that every situation is different for each of us. When it's minus 30F here and it stays below zero every night for 3-4 weeks at a stretch; SCV couplers, front differentials at the input-output shafts, will seep.

Hydraulic fluid will freeze and look like crystallized honey.

All has to do with contraction of the metal surfaces with the cold.

WHEW, i'd probably leak to at those temps, mid 20's is about as cold as we've seen this winter. I had to replace thermostat housing on the 5303, the past 2 winters it would leak, summer no problems & gasket didn't fix it. So far this winter, no leaks:thumbsup:

Ronnie

 

[pat32rf]

While I was always careful I was never too worried about teflon tape, then a month ago the little circulation pump on our outdoor wood furnace suddenly got REALLY noisy....When I pulled it apart I found a 3/4" piece of tape blocking part of the impellor.....

 

[ovrszd]

Also, hydraulic couplers are designed to not leak under pressure. When parked and relaxed they'll seep. I'm OCD about parking with any hydraulics pressurized so I relax the FEL and Grapple if it's attached. When I do that they drip. If I park it with pressure on them they do not drip.

 

[beenthere]

And on the flip side, I don't get any leaking from fittings..