Jeep J-10 Series 1982 Technical & Service Manual page 816

26-24 BRAKES
(2) Disconnect brake line at wheel cylinder. Do not
bend line away from cylinder. When cylinder is re
moved, line will separate from cylinder easily.
(3) Remove cylinder-to-support plate bolts and re
move cylinder.
Overhaul
(1) Remove brakeshoe links and dust boots.
(2) Push pistons, piston cups, and compression
spring and expanders out of piston bore. Discard piston
cups, they are not reusable.
(3) Clean all cylinder components using brake
cleaning solvent or brake fluid only.
81099D
Fig. 26-12 Installing Master Cylinder Reservoir—
Cherokee-Wagoneer-Truck Models
CAUTION: Do not clean brake parts with solvents con
taining mineral oil such as gasoline, carbon tetrachlo
ride, kerosene, alcohol, paint thinner or similar fluids.
Mineral oil causes swelling, deterioration, and pre
mature aging of all rubber parts in the hydraulic sys
tem. Use clean brake fluid or an approved brake
cleaning solvent only.
(4) Inspect wheel cylinder and pistons. Replace cyl
inder if bore or pistons are scored, corroded, rusted,
pitted, worn, or cracked. If bore or pistons are only
discolored, or stained, polish bore or pistons lightly us
ing crocus cloth only. Do not polish cylinder bore in
lengthwise direction, polish by rotating cylinder around
crocus cloth supported on fingers.
CAUTION: Do not hone the wheel cylinders at any
time or for any reason.
(5) Inspect bleeder screw and screw threads in cyl
inder. Screw must turn freely. Replace screw if dam
aged or replace cylinder if cylinder threads are
damaged.
(6) Inspect compression spring and integral expan
ders. Replace spring if broken, distorted, lacks tension,
or if expanders are damaged in any way.
BLEEDER
SCREW
COMPRESSION
SPRING AND
EXPANDERS
WHEEL
CYLINDER
PISTON
DUST.
BOOT
CJ AND SCRAMBLER MODELS
COMPRESSION
SPRING AND
BLEEDER EXPANDERS
SCREW
LINK
DUST
BOOT
PISTON
PISTON CUP
WHEEL
CYLINDER
CHEROKEE, WAGONEER,
TRUCK MODELS
Rg. 26-13 Wheel Cylinder
(7) Inspect rubber dust boots. Replace boots if cut,
torn, cracked, distorted.
(8) If cylinder bore or pistons were polished, clean
them using brake fluid or brake cleaning solvent and dry
using compressed air.
(9) Lubricate cylinder bore and all cylinder internal
components with new brake fluid. Do not lubricate dust
boots. Install them dry only.
(10) Position replacement piston cups on com
pression expanders and install assembled parts in cylin
der bore. Be sure expanders are seated in piston cups
and that cups are installed with lips facing one another
and toward interior of cylinder bore.
(11) Install pistons in cylinder bore. Be sure pistons
are installed with flat sides facing interior of bore.
(12) Install dust boots.
Installation
(1) Clean wheel cylinder mounting surface of sup
port plate.
(2) Clean brake line fitting and threads.
(3) Start brake line fitting into cylinder. Do not
tighten fitting completely.
80398