l3800 hydraulics

crovol

New member

Equipment
m9000
Jul 25, 2013
21
0
0
tennessee
i have a problem with the sight glass for checking the hydraulic oil in my l3800.i had a leak and when i started adding oil back it ran out the filler plug and i could never see it on the sight glass. anyone else have this problem?
 

Daren Todd

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Lifetime Member

Equipment
Massey Ferguson 1825E, Kubota Z121S, Box blade, Rotary Cutter
May 18, 2014
10,202
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Vilonia, Arkansas
Sight glasses when completely full can look empty. But most have a white backing. I would drain the fluid down to about the middle of the site glass. It makes it easier to tell where the fluid level is at :)
 

crovol

New member

Equipment
m9000
Jul 25, 2013
21
0
0
tennessee
my problem is i watched the glass while my son added oil and it never showed on the glass, then it ran out the filler. we then drained out a gallon and a half but never saw the oil on the glass.this tractor has less than a hundred hrs on it. by the way thanks for the reply. by the way ,the glass does have a white backing
 

Jim L.

Active member
Jun 18, 2014
855
158
43
Texas
It is hard to tell. But the background is a white.

Once the fluid is halfway then you can see the level. Overfilled it is difficult to know.

One of those things that you have to see it right before you can diagnose it.
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
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Sandpoint, ID
Yes over filled case can cause some serious issues, it can blow seals, and damage valves and other systems. ;)
Drain the fluid down until you can see the level.
 

Sammy3700

Active member

Equipment
L3800HST,524Loader,BH77,Landplane,Disk,Mowers and more
Feb 20, 2012
437
41
28
Red Springs, NC
I had same problem. I cleaned around site glass and carefully unscrewed the glass with a clean pan under it. When it drains down you can put the glass back in and see the white background the others are talking about and can add a little at a time so you will see the change from white to brown.
This what I did hope it helps.
 

Sammy3700

Active member

Equipment
L3800HST,524Loader,BH77,Landplane,Disk,Mowers and more
Feb 20, 2012
437
41
28
Red Springs, NC
I always look at it as I get on the seat so it would be not running. Rear implement on the ground.
 

Eray

Member

Equipment
L2501 HST
Feb 24, 2015
84
2
8
Lenoir City, Tennessee
Some good good machinest on here needs to manufacture a dipstick to replace the fluild fill cap. I hate the sight glass. My deere just had a dipstick on the filler cap and it was much easier to use.
 

CaveCreekRay

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Lifetime Member

Equipment
L3800 HST, KingKutter box scraper, KingKutter 66" rake, County Pride Subsoiler
Jul 11, 2014
2,631
100
48
Cave Creek, AZ
Sure would be good if they dropped a little red dye in the fluid. We could do the same thing couldn't we? Would a couple drops of oil-based stamp pad ink screw up the works? I can't imagine it would.