How do you break in rear brake shoes?
Break-in of New Rear Brake Rotors or Shoes
- Drive the unloaded vehicle on a safe, level and dry road.
- Pull the parking brake control lever with a force of 147 N ( 33 lbs) .
- While pulling the lever, continue to drive the vehicle forward 100 meters (328 ft) or a little longer than a football field at approximately 22 mph.
Does the primary brake shoe to front or back?
Thus, the rear shoe does most of the braking and the front shoe’s primary job is to engage the rear shoe.
Which brake shoe is the primary one?
One wheel cylinder operates the brake on each wheel. Two pistons operate the shoes, one at each end of the wheel cylinder. The leading shoe (closest to the front of the vehicle) is known as the primary shoe. The trailing shoe is known as the secondary shoe.
How to adjust the brake shoes on a Toyota Camry?
If there appears to be too much resistance, apply some high-temperature grease (using a small brush or stick as the applicator) on the Backing Plate where the Brake Shoe meets the plate. Inspect the brake shoes for glaze. The glaze can be removed using light sandpaper.
Can you remove the drum from a Toyota Camry?
The faster alternative, not requiring drum removal, is inserting a screwdriver through the Brake Adjustment Access Hole in order to turn the Brake Adjustment Wheel (Star Wheel); however, my preference is to remove the drum.
What causes rear drum brakes to engage too soon?
If the parking brake system is not de-adjusted properly before the brake shoes are adjusted it will cause the rear brakes to engage too soon. This is especially true of vehicles equipped with duo-servo rear drum brakes (see Figure 61.1).
Why are my brake shoes square with the drum?
The shoe lands or “bosses” are an often overlooked item when looking for the cause of a rear wheel lockup condition. The shoe lands keep the brake shoes square with the drum and provide a friction surface for the shoes to move against.