Honda TRX400EX FOURTRAX 1999 Service Manual page 211

INSPECTION
Check the caliper cylinder and piston f o r scoring,
scratches or damage.
Measure the caliper cylinder I.D.
SERVICE LIMIT: 34.02 mm (1.340 in)
Measure the caliper piston O.D.
SERVICE LIMIT 33.87
ASSEMBLY
CALIPER BRACKET
WEAR REFERENCE PLATE
Coat new piston seal and dust seal with clean brake
fluid and install them into the seal grooves in the
caliper.
Coat the caliper piston w i t h clean brake fluid and
install it into the caliper cylinder with the opening
toward the caliper body.
mm (1.333
BLEED VALVE
CALIPER BODY
\
PISTON SEAL
WASHER WASHER
BRACKET PIN
\
HYDRAULIC DISC BRAKE
PAD PIN PLUGS
14-1 I