GM 19150002
Brake Shoes, Rear

First, you should raise the vehicle and safely support it on stands before starting to service and repair the duo-servo drum brakes. Mark the connection between the wheel and the hub and then take out the tire and wheel. After that, identify how the drum is linked to the axle and take it off. Go on to carefully remove the return springs, shoe guide, hold down springs and hold down pins. Take out the actuator lever and the lever pivot and then detach the lever return spring and actuator link. First, separate the park brake strut and the strut spring, then take out the park brake lever and adjusting screw assembly, plus the screw spring. Go over each area for signs of heat or stress damage, changing parts as required and watch out for wear. Make sure the Wheel Cylinder is not leaking and that the Brake Drum meets machining requirements. Pour a thin layer of white lithium grease or something similar on each shoe pad and the inside of the adjustment screw threads before installing. Mount the adjusting screw assembly and adjusting screw spring to each shoe, so the coils do not touch the adjusting screw. Join the shoe assembly to the backing plate, then place the parking brake lever, strut spring and park brake strut. After that, put the actuator lever and lever pivot together and continue with the link and lever return spring. Put the hold down pins, hold down springs, shoe guide and return springs in place. Next, fit the drum back in place, so the marks from the previous assembly are matched and install the tire together with the wheel, also making sure the marks are aligned. After that, finish the job by checking and adjusting the rear brakes.

Servicing and repairing of Parking Brake Shoe requires users to first remove the drum followed by removing its bolts and washers. First disconnect support plate and shoe kits while next you should take away the springs and shoe kits. The inspection should assess both the spring wear and heat level and automatic replacement should occur when necessary and the support plate friction points must be checked for exceptional wear to require new parts. During installation the shoe kits must be attached to the support plate followed by spring assembly. Place the support plate together with shoe kits on the installation while making sure the index lever stands between the shoes. Fasten the bolts along with washers by applying torque of 105 nm (77 ft. Lbs.) before reinstalling the drum.

First support the vehicle while it is raised before eliminating the tire and wheel. The installation of the park brake lever pin needs proper attention to brake dust protection. Begin by uninstalling the rear Brake Drum followed by removal of the rear Brake Shoe return springs (7,8). Then take out hold-down springs and hold-down pins and shoe guide, rear Brake Shoe actuator with spring, rear Brake Shoe actuator link, rear parking brake lever strut with spring, and rear Brake Shoe adjuster spring and rear brake adjuster. The last step involves removing rear brake shoes (1, 14) while performing inspections to identify removal symptoms such as discoloration and wear on all parts and scoring and machining tolerance on the rear Brake Drum. To install the rear brake shoes (1,14) and rear Brake Shoe adjuster professionals need to apply a thin silicone lubricant coat to the rear Brake Backing Plate and adjusting screw threads. Avoid mixing the right and left Brake Shoe adjusting screws. The installation begins with placing the rear Brake Shoe adjuster spring in the correct position (without coil contact to the screw) before continuing with the rear park brake lever strut and spring followed by the rear Brake Shoe actuator link and its spring and shoe guide and hold-down pins and springs and return springs (7,8). Finish the Brake Drum reinstallation then take out the brake lever pin before installing the tire and wheel and readjusting all brakes and brake parking system before you can lower the vehicle.

Gm replacement rear Brake Shoe material serves as the best choice for brake performance because it helps preserve the balance between front and rear braking systems. The first step involves placing safety stands under the elevated vehicle and then extracting the tire to inspect the brake shoes. The Brake Drum should be separated after inserting the pin into the park brake lever. Start by removing the rear Brake Shoe return springs (7,8) followed by hold-down springs and hold-down pins and shoe guide and rear Brake Shoe actuator with spring and its link together with rear parking brake lever strut which contains its spring and the rear Brake Shoe adjuster spring and lastly the rear brake adjuster before taking out the rear brake shoes (1,14). The inspection should check for discoloration along with wear and leakage from the rear brake cylinder of all parts along with scoring on the rear Brake Drum and its machining tolerance. First apply white lithium grease to the rear Brake Backing Plate and adjusting screws threads before installing the rear brake shoes (1,14), rear Brake Shoe adjuster and then check that right and left Brake Shoe adjusting screws do not switch positions. After installation of the rear Brake Shoe adjuster spring with careful attention to keep its coils separate from the adjusting screw one must proceed with the rear park brake lever strut along with its spring followed by installation of the rear Brake Shoe actuator link and rear Brake Shoe actuator and their accompanying spring and shoe guide together with two hold-down pins and hold-down springs and the rear Brake Shoe return springs (7,8). Put the rear Brake Drum in position before taking out the pin from the park brake lever and returning the tire with its wheel. To conclude the procedure you must adjust the rear brakes before removing safety stands then lower the vehicle.

Servicing and repairing of Parking Brake Shoe requires users to first remove the drum followed by removing its bolts and washers. First disconnect support plate and shoe kits while next you should take away the springs and shoe kits. The inspection should assess both the spring wear and heat level and automatic replacement should occur when necessary and the support plate friction points must be checked for exceptional wear to require new parts. During installation the shoe kits must be attached to the support plate followed by spring assembly. Place the support plate together with shoe kits on the installation while making sure the index lever stands between the shoes. Fasten the bolts along with washers by applying torque of 105 nm (77 ft. Lbs.) before reinstalling the drum.

First, you should raise the vehicle and safely support it on stands before starting to service and repair the duo-servo drum brakes. Mark the connection between the wheel and the hub and then take out the tire and wheel. After that, identify how the drum is linked to the axle and take it off. Go on to carefully remove the return springs, shoe guide, hold down springs and hold down pins. Take out the actuator lever and the lever pivot and then detach the lever return spring and actuator link. First, separate the park brake strut and the strut spring, then take out the park brake lever and adjusting screw assembly, plus the screw spring. Go over each area for signs of heat or stress damage, changing parts as required and watch out for wear. Make sure the Wheel Cylinder is not leaking and that the Brake Drum meets machining requirements. Pour a thin layer of white lithium grease or something similar on each shoe pad and the inside of the adjustment screw threads before installing. Mount the adjusting screw assembly and adjusting screw spring to each shoe, so the coils do not touch the adjusting screw. Join the shoe assembly to the backing plate, then place the parking brake lever, strut spring and park brake strut. After that, put the actuator lever and lever pivot together and continue with the link and lever return spring. Put the hold down pins, hold down springs, shoe guide and return springs in place. Next, fit the drum back in place, so the marks from the previous assembly are matched and install the tire together with the wheel, also making sure the marks are aligned. After that, finish the job by checking and adjusting the rear brakes.

You should lift and support your vehicle before changing the Parking Brake Shoe. Pull out the wheel and remove the caliper and the mounting bracket attached to it as one piece. Take the tension off the park brake cables by loosening the nut where they attach to the equalizer. After that, pull the end of the brake cable from the lever. After that, take out the rotor and the Axle Shaft. Next, get rid of the park Brake Shoe return springs (4 and 6), the anchor springs and pins for the park brake shoes (3) and the park brake shoes (2). After removing the debris, download the repair guide. As per the guide, put the park brake shoes in place (2), add the anchor spring and pins (3) and return springs (4 and 6). Adjust the park Brake Shoe and then put the Axle Shaft in place. Then, install the rotor and the park brake cable to the brake lever, tighten the nut at the equalizer so that torque is 3.5 n.m (31 lb in ). Lastly, put the caliper and bracket together and then the tire and wheel as a whole, move the safety stands out of the way and lower the vehicle. Adjust the parking brake's cable when instructed.

Servicing and repairing of Parking Brake Shoe requires users to first remove the drum followed by removing its bolts and washers. First disconnect support plate and shoe kits while next you should take away the springs and shoe kits. The inspection should assess both the spring wear and heat level and automatic replacement should occur when necessary and the support plate friction points must be checked for exceptional wear to require new parts. During installation the shoe kits must be attached to the support plate followed by spring assembly. Place the support plate together with shoe kits on the installation while making sure the index lever stands between the shoes. Fasten the bolts along with washers by applying torque of 105 nm (77 ft. Lbs.) before reinstalling the drum.

First, you should raise the vehicle and safely support it on stands before starting to service and repair the duo-servo drum brakes. Mark the connection between the wheel and the hub and then take out the tire and wheel. After that, identify how the drum is linked to the axle and take it off. Go on to carefully remove the return springs, shoe guide, hold down springs and hold down pins. Take out the actuator lever and the lever pivot and then detach the lever return spring and actuator link. First, separate the park brake strut and the strut spring, then take out the park brake lever and adjusting screw assembly, plus the screw spring. Go over each area for signs of heat or stress damage, changing parts as required and watch out for wear. Make sure the Wheel Cylinder is not leaking and that the Brake Drum meets machining requirements. Pour a thin layer of white lithium grease or something similar on each shoe pad and the inside of the adjustment screw threads before installing. Mount the adjusting screw assembly and adjusting screw spring to each shoe, so the coils do not touch the adjusting screw. Join the shoe assembly to the backing plate, then place the parking brake lever, strut spring and park brake strut. After that, put the actuator lever and lever pivot together and continue with the link and lever return spring. Put the hold down pins, hold down springs, shoe guide and return springs in place. Next, fit the drum back in place, so the marks from the previous assembly are matched and install the tire together with the wheel, also making sure the marks are aligned. After that, finish the job by checking and adjusting the rear brakes.

Installation of the pin into the park brake lever must happen first followed by raising the vehicle for suitable support before proceeding with the replacement of brake shoes. The first step should be tire and wheel removal before taking out the rear Brake Drum. The task begins with removing rear Brake Shoe return springs (7,8) and their accompanying hold-down springs and pins and shoe guide and rear Brake Shoe actuator with spring together with actuator link and rear parking brake lever strut and spring and rear Brake Shoe adjuster spring and adjuster from the assembly. Check all components for discoloration and wear and leakage from the rear brake cylinder and scoring and machining tolerance on the rear Brake Drum after you remove the rear brake shoes (1,14). Reverse brake shoes (1,14) must be installed first followed by the rear Brake Shoe adjuster with the right and left brake shoes (1,14) avoiding screw interchange. Install the rear Brake Backing Plate, adjusting screws and threads should receive high temperature silicone brake lubrication before installation. Install first the rear Brake Shoe adjuster spring with matching distance between its coils through the adjusting screw before continuing with the installation of rear park brake lever strut and spring along with the rear Brake Shoe actuator link followed by rear Brake Shoe actuator and spring then shoe guide followed by hold-down pins and hold-down springs and finally rear Brake Shoe return springs (7,8). Next install the rear Brake Drum before removing the park brake lever pin and putting back the tire together with the wheel assembly. To correctly seat the wheel cylinders and brake shoes personnel should apply brake pedal 2/3 of its distance when the engine is off followed by a 15-second waiting period and repeated process until brake pedal obtains the proper firmness.

First support the vehicle while it is raised before eliminating the tire and wheel. The installation of the park brake lever pin needs proper attention to brake dust protection. Begin by uninstalling the rear Brake Drum followed by removal of the rear Brake Shoe return springs (7,8). Then take out hold-down springs and hold-down pins and shoe guide, rear Brake Shoe actuator with spring, rear Brake Shoe actuator link, rear parking brake lever strut with spring, and rear Brake Shoe adjuster spring and rear brake adjuster. The last step involves removing rear brake shoes (1, 14) while performing inspections to identify removal symptoms such as discoloration and wear on all parts and scoring and machining tolerance on the rear Brake Drum. To install the rear brake shoes (1,14) and rear Brake Shoe adjuster professionals need to apply a thin silicone lubricant coat to the rear Brake Backing Plate and adjusting screw threads. Avoid mixing the right and left Brake Shoe adjusting screws. The installation begins with placing the rear Brake Shoe adjuster spring in the correct position (without coil contact to the screw) before continuing with the rear park brake lever strut and spring followed by the rear Brake Shoe actuator link and its spring and shoe guide and hold-down pins and springs and return springs (7,8). Finish the Brake Drum reinstallation then take out the brake lever pin before installing the tire and wheel and readjusting all brakes and brake parking system before you can lower the vehicle.