Hydro oil Filter question L4400HST

[aaluck]

I purchased this tractor L4400HST used and had everything checked out and serviced before I had it delivered.

Now I'm coming up on the 200 hour mark (since I bought it, 780 total) and in my manual (attached as photo) it says I need to replace the hydraulic oil filter, at 200 hours. As you can see from the instructions it wants me to pull the drain plugs (all 4) to do this. Now, Ive never been accused of rivaling Einstein, but it would appear to me that in so doing the oil will drain out, which really turns into an oil change, not a filter change. (Mind you the OIL change is to take place at 400 hours, not 200).

Am I missing something? Will it only drain a small amount of oil--enough to remove the filter? Should I skip this until I do the oil at 400 hours?

BTW... contacted dealer and guy in parts told me to "just take the filter off quickly and put the new one on quicker and shouldn't lose much fluid".

 

[Creature Meadow]

I would just change the filter and I'm also assuming the manual is referring to how to change the oil and filter.

Some use a vacuum cleaner stuck in the hydro oil fill port to assist in not having the oil pour out.

Others park tractor on a small incline to aid as well sideways with filter on the uphill side.

Have the new one ready with some oil on the seal and be quick. Put a clean bucket under to catch the fluid that does run out to reuse.

When I changed mine a magnet came with my new Kubota hydro filter, so I did not need to reuse the one on the old filter and it did have plenty of metal shavings on it as was expected.

Good luck.

Jay

 

[aaluck]

I would just change the filter and I'm also assuming the manual is referring to how to change the oil and filter.

Some use a vacuum cleaner stuck in the hydro oil fill port to assist in not having the oil pour out.

Others park tractor on a small incline to aid as well sideways with filter on the uphill side.

Have the new one ready with some oil on the seal and be quick. Put a clean bucket under to catch the fluid that does run out to reuse.

When I changed mine a magnet came with my new Kubota hydro filter, so I did not need to reuse the one on the old filter and it did have plenty of metal shavings on it as was expected.

Good luck.

Jay

Thank you for helping. As for the manual it actually has the oil change two pages later under the 400 hour section. However, the instructions are the same for the oil change and the filter change.

Ill take your advice.

 

[Roadworthy]

To change the filter only you remove the filter only. Once the filter is removed the fluid will follow until your new filter is in place - that's why the vacuum applied with the shop vac to the filler, it helps hold the fluid in the filter.

 

[rjcorazza]

Kubota manuals frequently have servicing errors like you mention. My previous L3410 manual listed the 200h service as yours does. Current L4060 specifically says do not drain the transmission to replace the Transmission (HST) filter.
Removing the Transmission (HST) filter will result in maybe a quart of fluid loss (at least on my two previous machines). Removing the Hydraulic filter WILL drain the entire sump in short order. The Hydraulic filter is the 400h interval filter, at which time the fluid gets replaced anyway.
To make matters worse, Kubota parts listings and service manuals frequently do not correctly identify the two filters.

 

[fruitcakesa]

When I change the hydro filter on the M, I rolled it up on some 8x8's to get the filter side higher but neglected to apply vacuum to the fill port.
Big mistake, big mess.

 

[SidecarFlip]

Kubota manuals frequently have servicing errors like you mention. My previous L3410 manual listed the 200h service as yours does. Current L4060 specifically says do not drain the transmission to replace the Transmission (HST) filter.
Removing the Transmission (HST) filter will result in maybe a quart of fluid loss (at least on my two previous machines). Removing the Hydraulic filter WILL drain the entire sump in short order. The Hydraulic filter is the 400h interval filter, at which time the fluid gets replaced anyway.
To make matters worse, Kubota parts listings and service manuals frequently do not correctly identify the two filters.

No, not correct. Removing the filter (s) (2 in my case), will drain the gearcase sump to the point where the lowest hole in the filter boss is but there will still be around 1/3rd of the oil inside yet. Only way to drain the ENTIRE case is via the drainplug(s).