Chrysler RAM TRUCK 2500 1994 Service Manual page 170

• MASTER CYLINDER S - 11
(6) Remove bolt attaching RWAL valve to combina­
tion valve bracket (Fig. 8).
Fig. 8 RWAL Valve Attaching Bolt Location
(7) Remove nuts attaching combination valve
bracket and master cylinder to brake booster mount­
ing studs (Fig. 7).
(8) Slide combination valve bracket off booster
mounting studs.
(9) Remove master cylinder from vehicle.
MASTER CYLINDER DISASSEMBLY AND
OVERHAUL
(1) Remove reservoir cover and seal (Fig. 9).
DIAPHRAGM
SEAL
COVER
J9405-7
Fig. 9 Reservoir Seal And Cover Removal
(2) Drain reservoir fluid into drain container.
(3) Clamp cylinder body i n vise. Clamp vise jaws
on one of the cylinder mounting ears as shown (Fig.
10).
(4) Remove reservoir with a rocking motion. Use a
pry tool to help ease reservoir out of cylinder body
and grommets (Fig. 10). I f reservoir is to be re­
placed, note and record reservoir code letters
(Fig-
2 ) .
Fig. 10 Reservoir Removal
(5) Remove grommets from cylinder body (Fig. 11).
Discard grommets as they are not reusable.
i-9
Fig. 11 Reservoir Grommet Removal
(6) Remove master cylinder piston retaining snap
ring with small pointed tool and flat blade screw­
driver.
(7) Remove primary piston and spring assembly
(Fig. 12). Discard assembly after removal. Do not
disassemble piston components as primary pis­
t o n is serviced as complete assembly only.
(8) Remove secondary piston (Fig. 12). Apply air
pressure through rear outlet port to ease piston out
of bore.
(9) Remove secondary piston spring (Fig. 12). Tilt
cylinder body downward so spring will slide out of
bore.