Front

DISASSEMBLY





Lubrication Points

Disassembly Service Points
When disassembling the front disc brakes, disassemble both sides (left and right) as a set.

Piston Boot / Piston Removal

Send compressed air from the port to which brake hose is installed and remove the pistons and piston boots.

Caution: Send the air gradually, and using the handle of a plastic hammer etc., keep the protrusions of the two pistons even. If one of the two pistons is removed, the other one cannot be removed.

Piston Seal Removal

1) Remove piston seal with finger tip.

Caution: Do not damage the cylinder inner surface.

2) Clean piston surface and inner cylinder with trichloroethylene, alcohol or specified brake fluid.
Specified brake fluid: Conforming to DOT3 or DOT4

REASSEMBLY

Reassembly Service Point
>A

Install the guide pin and lock pin mating the head markings on the guide and lock pins with the identification markings on the caliper body.

INSPECTION
- Check cylinder for wear, damage or rust.
- Check piston surface for wear, damage or rust.
- Check caliper body or sleeve for wear.
- Check pad for damage or adhesion of grease and check backing metal for damage.

Pad Wear Check

Measure thickness at the thinnest and worn area of the pad. Replace pad assembly when pad thickness is less than the limit value.
Standard value: 10.0 mm (0.39 inch)
Limit value: 2.0 mm (0.08 inch)

Caution:
1. When the limit is exceeded, the brake pads on both the left and right wheels must be replaced as a set.
2. If there is a large difference in thickness between the pads on the right and left wheels, check the sliding portions of the caliper.