Dodge RAM 1500 1998 Owner's Manual page 268

DR
DISC BRAKE CALIPERS (Continued)
Fig. 30 Protect Caliper Piston
1 - CALIPER
2 - PADDED BLOCK OF WOOD
3 - C-CLAMP
WARNING: NEVER ATTEMPT TO CATCH THE PIS-
TON AS IT LEAVES THE BORE. THIS COULD
RESULT IN PERSONAL INJURY.
(5) Remove the C-clamp and block of wood from
the caliper and clamp it over the dust boot of the
first piston removed. This will seal the empty piston
bore.
(6) Move the padded piece of wood in front of the
other piston.
(7) Remove the second piston using the same pro-
cedure with short bursts of low pressure air.
(8) Remove piston dust boots with a suitable pry
tool (Fig. 31).
Fig. 31 Piston Dust Boot Removal
1 - CALIPER
2 - DUST BOOT
(9) Remove piston seals from caliper (Fig. 32).
CAUTION: Do not scratch piston bore while remov-
ing the seals.
(10) Push caliper mounting bolt bushings out of
the boot seals and remove the boot seals from the
caliper (Fig. 33).
(11) Remove caliper bleed screw.
Fig. 32 Piston Seal
1 - CALIPER
2 - PISTON BORE
3 - PISTON SEAL
Fig. 33 Bushings And Boot Seals
1 - CALIPER
2 - BUSHING
3 - BOOT SEAL
INSPECTION
The piston is made from a phenolic resin (plastic
material) and should be smooth and clean.
The piston must be replaced if cracked or scored.
Do not attempt to restore a scored piston surface by
sanding or polishing.
BRAKES - BASE 5 - 19