PREVENTIVE MAINTENANCE SCHEDULE 5 5-22 Y53-6077-1B1 (03/17) PREVENTIVE MAINTENANCE (PM) INTERVALS SYSTEM COMPONENT MAINTENANCE TASK Recommended PM Interval I A B C D E Drum Brakes (All) Slack adjusters Check the push rod travel and check the control arm for cracks. Adjust at reline (shown on page 5-69). X Lubricate (NLGI #2 grease). X Brake camshaft bearing Check for excessive camshaft paly in the axial and radial directions. Max allowable play is 0.003 in. Lubricate (NLGI #2 grease). X Brake treadle valve Clean the area around the treadle, boot, and mounting plate. Check the pivot and mounting plate for integrity. Check the plunger boot for cracks.
Lubricate roller pin, pivot pin, and plunger (NLGI #2 grease). X Brake air system Check air lines and fittings for leaks (shown on page 5-57). Adjust routing as required to prevent chafing. Check tank mounting and condition. X Clean or replace the inline filters. X Brake lining Inspect; replace as required. X