14. REAR WHEEL/SWING ARM/
HYDRAULIC BRAKE ATV 50
Inspection
Check the piston for scratches or wear.
Measure the piston O.D. with a micrometer
gauge.
Service limit:
33.85 mm (1.354 in) replace if below
Check the caliper cylinder for scratches or
wear and measure the caliper cylinder I.D.
Service limit:
34.05 mm (1.362 in) replace if over
Assembly
Clean all removed parts.
Apply silicon grease to the pistons and oil
seals. Lubricate the brake caliper cylinder
inside wall with brake fluid.
Install the oil seals and then install the brake
caliper pistons with the grooved side facing
out.
Install the piston with its outer end
protruding 35 mm (0.120.2 in)
beyond the brake caliper.
Wipe off excessive brake fluid with a clean
shop towel. Apply silicon grease to the
brake caliper holder pin and caliper inside.
Install the brake caliper holder.
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