Replacing hydraulic fluid on an L3901 HST

57plymouth

New member

Equipment
Kubota L3901 with FEL, 1955 Ford 900 Row Crop
Oct 26, 2020
25
10
3
Blythewood, SC
I have never encountered a more annoying job than refilling the hydraulic fluid on an L3901HST when doing a filter and fluid change. I didn't have any help and spilled what looked like an ocean (but was probably a quart).

Just saying, there has to be another place to put that fill cap.
 

UpNorthMI

Well-known member
Lifetime Member

Equipment
L3200, L3901, MX5800, SVL75-2, KX040
May 12, 2020
700
427
63
Up North, MI
I use a long neck flexible funnel supported by a piece of 2x4 with a v cut in the end so it holds the bowl of the funnel in place, slow and careful is required. Sure don’t want to waste too much of the liquid gold …lol
 

TheOldHokie

Well-known member

Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
698
274
63
Myersville, MD
I have never encountered a more annoying job than refilling the hydraulic fluid on an L3901HST when doing a filter and fluid change. I didn't have any help and spilled what looked like an ocean (but was probably a quart).

Just saying, there has to be another place to put that fill cap.
I find the cap placement quite handy. Invest $35 in a 5 gallon bucket pump and you won't spill but a drop or two. Funnels are for baby formula and beer making.

Dan

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skeets

Well-known member

Equipment
BX 2360 /B2601
Oct 2, 2009
12,063
864
113
SW Pa
I have never changed tire pressure in the winter and never had a problem pushing snow,,, NOW lets see a picture or3 of that old MOPAR
 
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lugbolt

Well-known member

Equipment
ZG127S-54
Oct 15, 2015
3,300
552
113
Mid, South, USA
I like to work smart, not hard.

siphon it into the trans.

put the bucket up on the fender. Might want to put a piece of cardboard on the fender under the bucket, or whatever you have (blanket, etc). Keeps from scratching it.

go cut your neighbor's garden hose, you need about 5 foot of it. 5/8 or 3/4 doesn't matter, 3/4 is a little tougher fit but it siphons a lot faster. Cut the end at an angle, maybe 30-45 degrees. Put that end into the bucket, other end into the tractors' fill hole. Now stuff a rag around the hose, beteween the hose and the bucket's nipple. Now stuff an air blow gun kinda down around the rag, blow a little pressure into the bucket and your siphon starts. Once it's started you don't need no more air....in other words, don't blow the bucket up! Go to the fridge (you have one in the shop or barn, right?????), grab a bottle of water, walk back over after having a swig, feed the shop cat or pet the shop dog..... takes about 5 minutes or so to siphon the entire contents of the bucket into the transmission. Repeat as needed with second bucket.

I'd liked to have one of those service station type dispensers but the boss lied to us about those too, so we had buckets like everybody else does. Learned real quick to find the easy way after dumping 40-50 gallons of oil into transmissions in a days' time.
 
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Outnumbered

Member

Equipment
Kubota L3901, FEL, BB1260, Forks, Caryall, 5' Tiller, RCF2060 Rotary Cutter
Oct 26, 2019
44
31
18
Moseley, VA
Here is the solution I came up with. Much easier and almost no mess.
Lisle 17232 Right Angle Funnel
I purchased mine on Amazon for about $12 several years ago.