2-58 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Using compressed air, remove the piston.
To avoid serious injury, never place your fingers or
palm inside the caliper opening. If you apply com-
pressed air into the caliper, the piston may crush
your hand or fingers.
Insert a wooden board [A] 5 mm (0.2 in.) thick inside the
Apply compressed air [B] to the banjo bolt hole to allow
the pistons [C] to protrude and stop at the wooden board.
Remove the wooden board and pull out the piston by
If compressed air is not available, with the brake hose
still attached, apply the brake lever to remove the pistons.
The remaining process is as described above.
Dust Seals [A]
Fluid Seals (Piston Seals) [B]
Friction Boot [C]
Immediately wash away any brake fluid that spills.
Front Caliper Assembly
Clean all parts other than the outer and inner pads.
For cleaning the parts, use only disc brake fluid,
isopropyl alcohol, or ethyl alcohol.
Install the bleed valve [A] and the rubber cap [B].
Torque - Front Caliper Bleed Valve: 7.8 N·m (0.80 kgf·m, 69
Replace the fluid seals [A] with new ones, apply brake
fluid to them, and install them in the caliper body. Either
side of the fluid seal may face outboard.
Check the dust seals [B] and replace them with new ones
if they are damaged.
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