Honda TRX680FA Service Manual page 422

BRAKE SYSTEM
INSPECTION
Check the master cylinder and master piston for
scoring, scratches or damage.
Check the piston cups and oil seal for wear, deterio-
ration or damage.
Measure the master cylinder I.D.
SERVICE LIMIT: 14.055 mm (0.5333 in)
Measure the master cylinder piston O.D.
SERVICE LIMIT: 13.945 mm (0.5490 in)
Do not allow the
piston cup lips to
turn inside out.
ASSEMBLY
Coat the master piston, piston cups and oil seal with
clean DOT 4 brake fluid.
Install the oil seal into the master cylinder.
Install the spring onto the piston end.
Install the spring and master piston into the master
cylinder.
MASTER CYLINDER SPRING
PISTON CUPS
Be certain the snap Install the snap ring into the groove in the master
ring is firmly seated cylinder with the chamfered edge facing in using
in the groove, the special tool.
MASTER PISTON
SNAP RING
TOOL:
Snap ring pliers 07914-SA50001 or
07914-3230001
SNAP RING PLIERS
Install a new boot into the master cylinder and the
groove in the piston
Apply silicone grease to the brake lever pivot-to-
master piston contact area.
BOOT
17-15