. MAINTENANCE MAINTENANCE PROCEDURE MAINTENANCE MAINTENANCE PROCEDURE 4 - 49 (1) Boom cylinder foot pin (2 places) (2) Boom foot pin (2 plac es) (3) Boom cylinder rod en d pin (2 places) (4) Arm c ylinder foot pin ( 1 place) (5) Boom - Arm coupling pin (1 place (6) Arm c ylinder rod end (7) Bucke t cylinder foot p in (1 place) LUBRICATE SWING C (2 places) 1. 2. 3. 1. Lower the work equip ment to the ground. 2. Using a grease pum through fitting s shown by arro 3. After greasing, wipe o ff any old g rease that was pushed out.