Hydraulic leak

[Lac du bonnet]

Yanmar y186d
Live in a freezing climate - 25 f
After using the tractor and parking it and it cools down to -25f oil will show on the floor maybe liter .this only seems to occur in the winter months not above freezing months .
Thx
Don

 

[bmaverick]

Yanmar y186d
Live in a freezing climate - 25 f
After using the tractor and parking it and it cools down to -25f oil will show on the floor maybe liter .this only seems to occur in the winter months not above freezing months .
Thx
Don

Don,

Hydraulic leak from hoses? Fittings? Gaskets?

-25F is drastic. Both Yanmar and John Deere require J20D for hydraulic fluid in extreme low temperatures.

Or in 20L bottle.

 

[Lac du bonnet]

Yanmar y186d
Live in a freezing climate - 25 f
After using the tractor and parking it and it cools down to -25f oil will show on the floor maybe liter .this only seems to occur in the winter months not above freezing months .
Thx
Don

It

Don,

Hydraulic leak from hoses? Fittings? Gaskets?

-25F is drastic. Both Yanmar and John Deere require J20D for hydraulic fluid in extreme low temperatures.

View attachment 731439

View attachment 731441

Or in 20L bottle.

View attachment 731442

Thx makes sense !

 

[seville009]

Are you sure it's hydraulic fluid? I've had many hydraulic leaks, but have only seen them while the equipment is running.

I've had engine oil leaks while the engine is cold though, probable a gasket gone bad.

 

[bmaverick]

Are you sure it's hydraulic fluid? I've had many hydraulic leaks, but have only seen them while the equipment is running.

I've had engine oil leaks while the engine is cold though, probable a gasket gone bad.

This is a common occurrence in the Yanmar/Deere/Cub Cadets that are used below -10F. The normal hydraulic fluid gets too thick and builds up too much pressure and wants to weep out. Thus, the low viscosity formula needs to be used.

As for leaks at other times and temperatures, yes, check seals, o-rings and gaskets.

 

[Lac du bonnet]

This is a common occurrence in the Yanmar/Deere/Cub Cadets that are used below -10F. The normal hydraulic fluid gets too thick and builds up too much pressure and wants to weep out. Thus, the low viscosity formula needs to be used.

As for leaks at other times and temperatures, yes, check seals, o-rings and gaskets.

Thx certainly makes sense ! Don

 

[bmaverick]

Thx certainly makes sense ! Don

Don, for you - the parts manual compliments of the Yanmar Tractor Owners Group on GroupsIO. Link in my signature below.

 

[bmaverick]

From member rScotty brochures

Tractor Ernie had these posted some time ago,

If your leaks were with the power steering, it's a typical occurrence too.