MX5200 HST and Trans filter change

[scootr]

The manual calls for HST and Trans fluid filters at 200 hours and filters and oil change at 400 hours.
My Question is this. How much oil is lost changing these filters and can it be captured and reinstalled?

 

[5030]

Couple quarts. Don't be that cheap, buy a gallon.

 

[LD1]

Put a shop vac on the fill port and you wont lose anything other than whats in the filters

 

[5030]

I know people do that but the vacuum is very hard on the lip seals in the gearbox.

 

[jyoutz]

Be ready to for a quick switch of filters. Oil the gasket and move fast. I only lost a quart.

 

[scootr]

Thanks for your replies bought a gallon Super UDT2

 

[scootr]

I must be slower than most. I lost almost 3 qts. Good thing I got the gallon.
Easy enough to do. 200 hr service complete.

 

[rScotty]

I must be slower than most. I lost almost 3 qts. Good thing I got the gallon.
Easy enough to do. 200 hr service complete.

You are faster than I am. Our M59 has the same engine/transmission I believe.

But it worked out for the best because when I took the filter off, the pipe nipple that the filter screws onto was so loose it wiggled & was barely finger tight. Almost ready to fall out by itself. I drained all the oil and tightened that pipe nipple into the transmission block before putting the filter on.

rScotty

 

[scootr]

Yikes - I can only hope mine was not loose... as I spun one off the other on as quick as I could.

 

[rScotty]

I've never heard of another one being loose - I was sort of surprised that it could even come loose.
I think that once the filter is snugged up nothing can move. The compression of the filter gasket not only prevents leaks, but I think it should keep the pipe nipple from turning too.

Here are pictures showing the pipe nipples we are talking about. Threaded on both ends. It looked to be a parallel pipe thread, but I didn't measure it.

rScotty

 

[rScotty]

I know people do that but the vacuum is very hard on the lip seals in the gearbox.

There would almost have to be range of pressure drops depending the the shop vacuum itself, how good the seal is to the transmission filler port, and backflow from the transmission case vent.

I've never looked at lip seals to see what they can handle in back pressure. Someone probably knows.
But using a vacuum is a clever technique and probably worth some thought about just how much pressure drop is actually needed to do the job without damaging the seals.

rScotty

 

[scootr]

I'll check mine when I do the oil change.

 

[5030]

There would almost have to be range of pressure drops depending the the shop vacuum itself, how good the seal is to the transmission filler port, and backflow from the transmission case vent.

I've never looked at lip seals to see what they can handle in back pressure. Someone probably knows.
But using a vacuum is a clever technique and probably worth some thought about just how much pressure drop is actually needed to do the job without damaging the seals.

rScotty

Been my experience that the lip seals are very pliable but designed to keep the fluids in. Why it's something I never do.