45
MAINTENANCE
SHIMANO genuine mineral oil replacement
5. Once there are no more air bubbles mixed in with the oil, temporarily
tighten the bleed screw/bleed nipple.
Bleed boss
Bleed screw
Bleed nipple
6. Bleed the air.
Most of the air bubbles remaining inside the brake system can be bled by performing the
following operation.
BR-M6100/BR-MT410
(1) Place a 3 mm hexagon wrench in the position shown in the figure.
(2) Connect the tube with bag attached to the bleed boss.
(3) Loosen the bleed screw.
(4) After a little while, the oil and air bubbles will flow naturally from the bleed boss into
the tube.
Air
bubbles
Bleed boss
Bleed screw
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