M108 question

ibeamcarver

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Equipment
L4600
Aug 27, 2012
25
0
0
Somerset, CA USA
I have an M108 Low Profile.
On the top of the rear differential on both sides it has what looks like an extra large zerx fitting, covered by a gray plastic cap. Does anyone know what these are?
 

North Idaho Wolfman

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Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
28,685
5,111
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Sandpoint, ID
Those are bleeder valves for the hydraulic brakes.
Don't open them, if you do you will get air in the cylinders or lines and your brakes will fail to work.