I have an early 1980s B7100 with a manual gear drive. I use it only for bush hogging a 2 acre horse pasture 2-3 times a year and maybe 2-3 times a year dragging it. Every couple of years the hydraulic lift stops working - I check the hydraulic oil on the dipstick (photo) and its like (almond) milk. I've drained it now 4 times over the years and the oil filter screen (there's only one) is completely clogged with a white creamy oily residue. Clean the filter, new oil and the lift is fine again. The filler cap and the dipstick are sealed - can't see how these are letting rain in. How can water be getting into my transmission hydraulic oil? The engine radiator uses some water - is it possible that the coolant is getting into the hydraulic oil? I'm using the best Kubota Hydraulic Oil Super UDT - but would be interested in a cheaper alternative given this situation. I have a FEL and don't have water in that. I'm hoping there's an obvious simple answer to this. Thanks!
B7100 Water (?) in Hydraulic Fluid
- Thread starter ojaikubota
- Start date
North Idaho Wolfman
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Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
85Hokie
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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
I do not know of a way that water can backtrack to the hydraulic oil - I am with everyone else, the boots are dry rotted or somehow you have a huge condensation problem - and I do not think that is the problem!
If outside - tarp it well!
I too agree with NIW - no need to throw S-UDT2 in that machine, that oil is fantastic - but there will be little gain in that machine, only gain will be the loss in the pocket.
If outside - tarp it well!
I too agree with NIW - no need to throw S-UDT2 in that machine, that oil is fantastic - but there will be little gain in that machine, only gain will be the loss in the pocket.
Thanks - I store it outside and did replace the shifter boot last year. Maybe there was already water in there. I will cover up the shifter and filler going forward.
Russell King
Well-known member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
See this post on a method to flush the transmission. Use a sacrificial 5 gallon bucket of cheap fluid
www.orangetractortalks.com
use fluid like this, good enough for a geared tractor
I bought something like this and use it to cover the area where the shifters are. Flip it upside down and flip the seat forward and place tub over the seat and steering wheel. And I bought a garage in a box and use the frame as a storage place and keep replacing the plastic tarps which don’t last very long in Texas sun.
Fast transmission Flushing
I have an B8200 with a standard, somehow water got in, I think through the gear lever boot. After going through two drums of oil and two drain and refills with no noticeable difference I realized that the hydraulic pump and hydraulics were obviously still contaminated. Even buying cheapo...
www.orangetractortalks.com
use fluid like this, good enough for a geared tractor
I bought something like this and use it to cover the area where the shifters are. Flip it upside down and flip the seat forward and place tub over the seat and steering wheel. And I bought a garage in a box and use the frame as a storage place and keep replacing the plastic tarps which don’t last very long in Texas sun.
Medium Mixing Tub A-41 - The Home Depot
This Medium 10 Gal. 28 in. D x 20 in. W x 6 in. H mixing tub is made of heavy-duty resin yet flexible. With a variety of options this multi-purpose tub offers endless uses. Great for Aquatics, Concrete,
www.homedepot.com
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
I have a piece of equipment that has been out in the open it's entire life. It has a 4 sped gearbox. I keep the shifter boot in excellent condition, but I also cover the entire shifting lever with a feed sack. I roll the edges of the sack to the inside, put it over the shifter and use bungee to hold it there.
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Yes that's all the drain on the rear.
And yes the DT has just the one screen filter, where the HST has 2 screen filters.
And yes the DT has just the one screen filter, where the HST has 2 screen filters.
Thanks again! Easy question now... https://starfire.com/products/hydraulic-oil/premium-tractor/ Has anyone used this oil and can you tell me what pump to buy to get the oil out of the bucket?
Russell King
Well-known member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Something like this
there are also metal versions and versions that replace the lid
this type fits into the spout of the pail
Lumax 5 Gal. Plastic Pail Pump with Flex Hose LX-1337 - The Home Depot
Ideal for transferring most water-based solutions, mild chemicals, motor oil, hydraulic, transmission fluid and lightweight oils. No more heavy lifting or messy pouring. Cleanup is a snap.
www.homedepot.com
there are also metal versions and versions that replace the lid
this type fits into the spout of the pail