1. Loosen the nuts on the rear wheels.
2. Jack up and support the rear of the machine so that the rear wheels are off the ground. Block the front wheels, shift into gear and release the handbrake.
3. Remove the nuts on one of the rear wheels and remove the wheel. Loosen and remove the 2 countersunk head screws securing the brake drum and remove the drum.
4. If the drum is not removed, then most likely it is necessary to remove the brake pads from it. Remove the plug from the drum platter (located at the bottom rear of the disc) and insert a screwdriver into the hole. Press the hand brake lever located in the drum and take it to the side in order to take the shoes away from the drum. Install the plug.
5. After removing the drum, thoroughly clean the rear brake of dust and be careful not to inhale it. To clean the drum, you can use a dry paint brush and a damp cloth.
6. Inspect the rear brake for brake fluid leaks from the brake cylinder and traces of lubricant leakage from the wheel bearings. Check the condition of the rubber boots on the cylinder and the general condition of the moving parts. If fluid or lubricant leaks are detected, the source of the leak must be located and repaired. If at least one brake lining has to be replaced, all 4. Inspect the linings for wear, and if the thickness of the friction material on at least one lining has reached 2.5 mm, the linings must be replaced. The procedure for replacing wheel bearings and seals is described in chapter 7.
7. Before installing the drum in place, inspect it for the presence of grooves, signs of corrosion and other defects. If the drum has defects caused by pad wear, you can take the drum to a specialized workshop.
8. Perform similar operations on the second rear wheel. Installing the brake drums is done in reverse order. Install wheels and secure with nuts. Lower the machine to the ground and tighten the wheel nuts to the correct torque. Press the brake pedal several times to adjust the brake pads, and then adjust the handbrake (see section 4).