Help me find the hydraulic vent on B6200

capekubota

New member
Jan 11, 2017
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canada
Trying to fix the foamy hydraulic fluid issue in my b6200d. Fluid foams when in use, but clears up after a few hours. Getting air somewhere but want to ensure the hydraulics are venting. I have heard the vents plug up. I have read that the vent is under the top link bracket, but for the life of me I cannot find it. Help me identify it in pics below...
 

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Lil Foot

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Equipment
1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
May 19, 2011
7,299
2,255
113
Peoria, AZ
Just guessing that the B6200 is similar, on a B7100 it is #24 (red arrow) in the pic below.
 

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Lil Foot

Well-known member
Lifetime Member

Equipment
1979 B7100DT Gear, Nissan Hanix N150-2 Excavator
May 19, 2011
7,299
2,255
113
Peoria, AZ
If you look at your 3rd pic, you see the (4) holes for mounting the top link bracket- there appears to be a 5th hole in the same location as the B7100 breather. I think this is the place where the breather would be.
 

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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113
Sandpoint, ID
Yep Lil Foot got it!

Normally fluid does not foam from a plugged vent.
The normal cause of foamed fluid is from a leak on the suction side of the pump, check the fittings / connections, the pipe, and the hose for any seeping leaks.

Water in the fluid can also cause it to foam. ;)
 

Nick_B6200

New member

Equipment
B6200
Apr 9, 2022
5
1
3
CA
I am sorry, I looked behind the top link bracket but its not there. My 6200 is manual in case its different from HST…Does anyone know where the vent would be? Thanks