mx5100 hst hydraulic filter change

[djzander]

Changed out my Hydraulic filter. Have a steel type band wrench. Came off easily.
Put it new one on, lubed the rubber seal , tightened it back up with the strap wrench. Fired up every thing seemed normal. Ran the tractor for about 1/2 hour
Changed the engine oil and filter. when I went to drain the engine oil noticed the filter leaking a little bit. Put the strap wrench back on it, maybe got another 1/4" of movement. Noticed there is a notch ring on the edge of the filter like for a spanner wrench. Didn't have a spanner big enough to fit. I could take a punch and hammer and try to crank it a little tighter but didn't. I figured I'd wipe it clean and take a look at it latter and see if its still dripping. Any thoughts this?

 

[85Hokie]

by chance are you sure the old gasket came off with the old filter?

And as far as tightening - I think you got it tight enough. Never heard of getting a filter as tight with the same pressure as getting it off. Most hit bottom then add another 1/4 to 3/4 turn depending on the filter.

 

[djzander]

HMM,
I'LL check that. I still have the old filter, see if its got the gasket on it.

Thanks
Dave

 

[North Idaho Wolfman]

Do not over tighten the filter!

Most likely you have some foreign material on where it seals or you have a bad filter.

 

[GWD]

Did the filter have a circular magnet in the mouth? If so, did you take out the old one before putting in the new one (if a magnet was included with the new filter)? Silly question but it is worth checking.

Not sure about your model, but my M7040 works like that. I think the HSTs are similar.

Too much tightening will warp the seal. Be careful.

 

[djzander]

This is the filter# HHTA0-59900.
I didn't see or read anything about a magnet in it or notice one.

 

[djzander]

Unfortunately I'm 2 hours away from the tractor and the old filter.
Worst case i'll pull it back off and inspect much closer. it may be just fine, It was only a few drops, if had left extra parts ,i.e. gaskets, magnets etc.
I will check it out when i get back to visit it.
I was wondering why there is a spanner ring on the filter and if there is a tool for it.

 

[1970cs]

That is the correct filter number for HST in a grand L or MX.
Heavy thick base. No magnet!

Just recheck that o ring mating surface and a possible double up of the o ring from the previous filter. (doubtful) Wipe off residual oil and check for leakage.

Pat

 

[djzander]

Thanks Pat.
As soon as I get back down and put a eye on the old filter I'll know if the o ring is on the old filter or not.

 

[lugbolt]

The HST filter has an o-ring on it. All one has to do it spin it on, and snug it up. They always seem to tighten themselves up over time. However, with the O-ring, they are really sensitive to dirt/debris/etc getting between the filter and it's mounting base. It needs to be squeaky clean or it WILL leak.