Take measures to prevent leakage of fluid from the tank.
Puller 67.7823.9519 (pic. 6-19) remove the brake drum.
Pic. 6-19. Removing the brake drum: 1 - puller 67.7823.9519
Disconnect from lever 2 (rice. 6-18) 5, remove the cotter pin, press the finger and remove the lever 2. Disconnect the upper 10 and lower 6 coupling springs 11 turn the cups of the support legs and remove them together with the posts, springs and lower cups, then remove the pads together with the spacer bar 9.
Disconnect the brake fluid supply pipe from the wheel cylinder and plug the inlets of the cylinder and pipe.
Remove wheel cylinder 1.
When replacing the brake shield, remove the axle shaft, as indicated in chapter «Rear Axle and Disconnect Rope parking brake actuator by unscrewing the two bolts securing to the brake shield.