Document ZBZjZJkEQYw3pzd28vkBQ0mNJ

38 11. Brake Shoe and Lever Spring. 12. Brake Shoe and Lever Spring Retainer. 13. Brake Shoe Lever Pressure Block. 14. Brake Shoe Anchor Pin--Lower --Adjustable. 15. Brake Shoe Anchor "C" Washer. 16. Brake Shoe Anchor Pin Washer --Plain. 17. Brake Shoe Abutment Block-- Lower. 18. Brake Shoe and Lever Spring-- Upper. 19. Brake Dust Shield Assembly. MINOR ADJUSTMENTS In Figure 32 the letter "A" indicates the eccentric anchor pins that control the shoe movement toward or away from the drum. To decrease the lining to drum clearance--proceed as follows: minimum running clearance. (Ap proximately IVz" travel at end of 8" wrench.) 4. Lock adjustment with nut "B" and rotate wheel in both directions and check for free running clearance. 5. Each brake is equipped with two brake shoes and eccentric adjusting pins. Adjust each shoe in- the manner described above, which is illustrated graphically in Figure 32. CAUTIONS 1. Make sure wheel bearing adjust ment is correct before attempting brake adjustment. 2. Make sure the adjustment is se curely locked. 3. Make sure liners are not worn ex cessively permitting rivets to contact drums. MAJOR ADJUSTMENTS As illustrated in Figure 33, it is not necessary to disturb the main retracting spring when removing shoes for re lining. Shoe assemblies are removed as follows: Figure 32 Method of Adjusting Timken ''DP" Brakes. 1. Raise vehicle so wheels are free to rotate. 2. Use Wa" wrench to loosen nut "B." 3. Position a Vj" open end wrench on the flat section of anchor pin "A" so that the wrench hand extends away from the vertical line of the brake. Ap ply pressure toward the ground until shoe contacts drum, then back off to a Figure 33 Removing Brake Shoes for Relining. 1. Remove brake shoe and lever pressure spring and retainer by insert ing a screw driver under the side of the spring near the retainer and prying them out of the recess. Do not remove main retracting springs.