New Brake Master Cylinder For Chevy SSR Trailblazer GMC Envoy XL Isuzu Olds For Sale

• First, screw off the old brake pipe of the master brake cylinder, and then remove it from the vacuum booster.
• Take out the brake master cylinder and remove the dust plug from the fluid hole.
• Install the mounting hole of the brake master cylinder flange into the corresponding mounting screw of the vacuum booster, then install the spring washer, and finally screw in the hexagon nut for tightening.
• Screw the brake pipe into the corresponding oil outlet hole of master cylinder and tighten it in place.
• Screw off the reservoir cap, fill the tank with brake fluid, open the bleed screw of brake wheel cylinder or caliper, and then exhaust the air in the whole brake pipeline, then add the brake fluid to about 5mm below the maximum scale mark of the storage tank, and then tighten the reservoir cap.

Note:

• When installing the vacuum booster, make sure that the liquid storage tank is upward after loading and can not be installed reversely.
• Check whether there is oil leakage at the connection between oil pipe and master pump.
• Pay attention to protect the oil pipe thread from damage and prevent the brake fluid from flowing.

• Oil leakage occurs between the brake master cylinder and the booster;
• Oil leakage from the piston rod positioning screw;
• Juddering when braking;
• There is noticeable resistance when the brake pedal is depressed.

• Check the wear of the main cylinder bore. Keep the surface of the main cylinder bore smooth and free from corrosion.
• Check if the storage tank is damaged or aged, check the filter screen and remove accumulated sediment.
• Check if the vent hole of the liquid storage tank cover is blocked and ensure it is unobstructed;
• Check if the buoy can move freely up and down; If not, replace the reservoir assembly.