Piston And Cylinder Damage; Caliper Holder Shaft Wear Inspection - Segway VILLIAN SSV Series Service Manual

BRAKE SYSTEM
◆ Apply brake fl uid to the outside of the pistons 【A】,
and push them into the cylinder by hand. Take care
that neither the cylinder nor the piston skirt gets
scratched.
◆ Replac e t he rubber boots 【B】 if t hey a re
damaged.
◆ Apply a thin coat of silicone grease to the caliper
holder shafts 【C】 and holder holes 【D】 (Silicone
grease is a special high temperature, water-resistant
grease).
◆ Install:
Caliper Holder 【E】
Bleed Valve 【F】 and Rubber Cap
Torque-Bleed Valve
7.9N·m ( 0.7 kgf·m,5.9 ft·lb )
◆ Install the anti-rattle spring 【A】 in the caliper as
shown.
◆ Install the pads (see Brake Pad Installation).

Piston and Cylinder Damage

◆ Visually inspect the pistons 【A】 and cylinder
surfaces.
◆ Replace the caliper if the cylinder and piston are
badly scored or rusty.

Caliper Holder Shaft Wear Inspection

The caliper body must slide smoothly on the caliper
holder shafts 【B】. If the body does not slide smoothly,
one pad will wear more than the other, pad wear will
increase, and constant drag on the disc will raise brake
and brake fl uid temperature.
◆ Check to see that the caliper holder shafts are not
badly worn or stepped, and that the rubber friction
boots are not damaged.
◆ If the rubber friction boot is damaged, replace the
rubber friction boot.
◆ If caliper holder shaft is damaged, replace the
caliper holder shaft and rubber friction boot as a
unit.
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