Can I change hydraulic filter without draining fluid?

[Dennisfly]

John Deere 855 manual has a service procedure to drain fluid, change spin on filter, then replace with new fluid. If I just want to change the filter without draining fluid, can I, or will the fluid run out from the filter housing?

 

[HillStreet]

John Deere 855 manual has a service procedure to drain fluid, change spin on filter, then replace with new fluid. If I just want to change the filter without draining fluid, can I, or will the fluid run out from the filter housing?

I can do that on my Kubota B2650 without losing much fluid but be quick with the new filter oiled and prepped. Just google videos for transmission filter on tractor. And you’ll get a ton of hits. I did this way on initial service, all services thereafter coincide with both fluid and filter changes.

 

[mrmikey]

Put a shop vac on the fill, it'll create a vacuum and the fluid won't leak. Don't do what a friend of mine did tho, he put it on the wrong part of the cleaner. You can imagine how that went.............Mike

 

[gimmodog]

if you lift the front to where the filter is higher than the highest part of the trans minimises the amount that will flow out. Another tractor with FEL works great.

 

[RayfromTX]

I have been warned not to fill the filter before installing because the oil you add will enter the system without passing through the filter media.

I change mine quickly and lose about one quart of fluid plus the volume in the filter itself.

 

[Fallon]

The shop vac on the fill port works great. May need some tape to get a half decent seal & hold it on, but it doesnt need to be that great of a seal. There is practically no leakage when you remove the filter.

 

[mrmikey]

I have been warned not to fill the filter before installing because the filter you add will enter the system without passing through the filter media.

This is true if you fill thru the center which is the easiest way unfortunately , fill it from the outer holes and you're good..............Mike

 

[Diggin It]

I have been warned not to fill the filter before installing because the filter you add will enter the system without passing through the filter media.

So? When you add to the fill port on the top, it goes in unfiltered at first.

And I don't get the whole vacuum thing. Doesn't that suck it up into the vacuum and/or hose, making a worse mess?

 

[Tx Jim]

So? When you add to the fill port on the top, it goes in unfiltered at first.

And I don't get the whole vacuum thing. Doesn't that suck it up into the vacuum and/or hose, making a worse mess?

One doesn't insert vacuum hose nozzle ""into the oil"" only into the hyd oil reservoir opening therefor only a vacuum is created in reservoir when shop vac is operating not allowing oil to drain out.

 

[Tx Jim]

I have been warned not to fill the filter before installing because the filter you add will enter the system without passing through the filter media.

I fail to see the need to filter "new oil" before it enters hyd system so I fill all filters when changing that attach upright.

 

[Diggin It]

One doesn't insert vacuum hose nozzle ""into the oil"" only into the hyd oil reservoir opening therefor only a vacuum is created in reservoir when shop vac is operating not allowing oil to drain out.

I'm gonna need pictures 'cuz that don't make a lick of sense. If I put the nozzle of my 12 gallon shop vac in an opening with fluid even close by, it's gonna suck fluid.

 

[aczlan]

I'm gonna need pictures 'cuz that don't make a lick of sense. If I put the nozzle of my 12 gallon shop vac in an opening with fluid even close by, it's gonna suck fluid.

In most tractors, the fluid level is 8-12" lower than the fill hole, as long as you have a loose fit (so it can leak a little), it should be fine.

Aaron Z

 

[Diggin It]

Not in mine. The fill hole is only a 1/2" or so and the level is less than an inch below the the opening. Dipstick is only an inch long.

 

[mrmikey]

I fail to see the need to filter "new oil" before it enters hyd system so I fill all filters when changing that attach upright.

I never filtered new oil neither but if you look at some pump manufacturers they tell you to filter new oil.......Mike

 

[Dennisfly]

Thanks all for your responses. In my case the fluid is about 6 inches below the fill port so I am going to try the vacuum (with a slight air leak). My John Deere Manual specifically says to prefill the new filter 1/3 to 1/2 full with new fluid. It even shows a picture with a funnel inserted in the center hole of the filter

 

[Fallon]

One doesn't insert vacuum hose nozzle ""into the oil"" only into the hyd oil reservoir opening therefor only a vacuum is created in reservoir when shop vac is operating not allowing oil to drain out.

DON'T GET SOAKED IN DIESEL! | BRILLIANT Hands-On Hack - YouTube

Same trick, different tank.

 

[Diggin It]

^^ Can you post that with real words and pictures, not some amateur TV wannabee?

 

[Fallon]

^^ Can you post that with real words and pictures, not some amateur TV wannabee?

Lol, AvE is is actually an extremely good engineer & a better tinkerer than most. He's recently purchased a new Haas CNC machine & made it avalible for public use just funded of Patreon donations. Unlike most YouTube stars he hasn't sold out to anybody.

 

[Tx Jim]

I'm gonna need pictures 'cuz that don't make a lick of sense. If I put the nozzle of my 12 gallon shop vac in an opening with fluid even close by, it's gonna suck fluid.

Can you post a video of your 12 gallon shop vac sucking the oil out of hyd reservoir without nozzle touching oil & with hyd filter removed?

 

[YLee Kioti]

For you fellas having trouble with the shop vac concept.
I used this process when I replaced the drain plug on the oil pan of my old 7.3L with a Fumoto valve.
I could see the oil at the opening and it never released a drop.
The shop vac. creates a negative pressure.
I will NOT suck any oil. The negative pressure is sufficient to prevent the product from flowing out a drain hole, filter housing etc.
The shop vac may need some aggie engineering to fit a hyd. oil fill opening but the concept is still valid.
A hose is attached at the opening but NOT inserted all the way in as far as it will go.
The hydraulic fluid is lower then the opening of the fill plug and will not siphon up any fluid.
Easy peasy fellas really.