Hydraulic System; Brake Fluid - Jeep J-10 Series 1982 Technical & Service Manual

Table of Contents

BRAKES 28-19

HYDRAULIC SYSTEM

Braki Bleeding

Brake Raid Level

Combination Vtlvi

The brake hydraulic system consists of the dual reser

voir master cylinder, combination valve, front disc

brake calipers, rear drum brake wheel cylinders, and the

connecting brake lines, hoses, and fittings (fig. 2G-8).

The hydraulic system is a closed system and must

remain free of contaminants in order to function prop

erly. When servicing the system, prevent the entry of

contaminants by capping all lines and ports, and by

avoiding the use of cleaning solvents that have a mineral

CAUTION: Never use gasoline, kerosene, carbon tet

rachloride, paint thinner, alcohol, or any similar fluid

cmitaining mineral oil, to clean or lubricate hydraulic

Hydraulic System Inspection

Mister Cylinder

Specifications

Wheel Cylinder

system components. These materials will cause swell

ing, deterioration, and premature aging ofrubber parts.

Use brakefluid or brake cleaning solvent only.

To determine if dirt, moisture, or mineral oil base

fluids have contaminated the hydraulic fluid, drain off a

sample and check for suspended particles, discoloration,

or separation of the fluid into distinct layers. Layering

indicates the presence of water or mineral oil. If system

contamination should occur, drain and flush the entire

brake hydraulic system with an approved brake fluid

When refilling or adding brake fluid to the hydraulic

system, use Jeep Brake Fluid or equivalent grade

marked SAE J1703 or DOT 3 only. Do not use any brake

Hg. 26-8 Brake Hydraulic System—Typical

Troubleshooting