Avoid leakage. Prevent damage to piston or piston bore.
Use non-metallic tools when servicing components.
(00529d)
5. See Figure 2-78. Using a wooden toothpick (1), remove
two square seals (2) from each caliper bore. Discard all
removed parts.
6. Pull anti-rattle spring (3) straight out to remove.
1. Banjo bolt hole - apply low-pressure air
2. Remover retaining bolt
3. Brake caliper piston remover (Part No. HD-48648)
Figure 2-77. Removing Pistons
1. Wooden toothpick
2. Square seal
3. Anti-rattle spring
Figure 2-78. Seals and Spring
CLEANING, INSPECTION AND REPAIR
Use denatured alcohol to clean brake system components.
Do not use mineral-based solvents (such as gasoline or
paint thinner), which will deteriorate rubber parts even
after assembly. Deterioration of these components can
cause brake failure, which could result in death or serious
injury. (00291a)
Compressed air can pierce the skin and flying debris from
compressed air could cause serious eye injury. Wear
safety glasses when working with compressed air. Never
use your hand to check for air leaks or to determine air
flow rates. (00061a)
1. Clean all parts with denatured alcohol or D.O.T. 4 BRAKE
FLUID. Do not contaminate with mineral oil or other
solvents. Wipe parts dry with a clean, lint free cloth. Blow
out drilled passages and bore with a clean air supply. Do
not use a wire or similar instrument to clean drilled pas-
sages.
2008 Dyna Service: Chassis 2-47
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