TM10-3930-660-20 18-23. BOOM CHAIN PULLEYS -  REPLACE  (Cont’d) 3. 4. 5. 6. 7. REMOVE CAPSCREW (5) AND LOCKWASHER (6).  DISCARD  LOCKWASHER  (6). REMOVE BOTTOM WEAR PAD FASTENERS ON INTERMEDIATE   BOOM. Remove capscrews (7), lockwashers (8), and washers (9) securing bottom wear pad at front of intermediate boom. Discard lockwashers (8). REMOVE PULLEY PIN (10). REMOVE CHAIN PULLEY (11) AND  BUSHINGS (12). LUBRICATION FITTING (13), IF REMOVE NECESSARY. 1. 2. INSTALL LUBRICATION FITTING (13), IF REMOVED  . INSTALL CHAIN PULLEY BUSHINGS (12) ON THE THE PULLEY PIN (10). (11), WITH BOOM AND INSTALL Apply Loctite 242 to capscrew (5) as installed. 3. SECURE PULLEY PIN WITH (NEW) LOCKWASHER (6) AND CAPSCREW (5). 4. SECURE INTERMEDIATE BOOM BOTTOM WEAR PAD l Apply Loctite 242 to threads of capscrews  (7). Install capscrews (7), new lockwashers (8), and washers (9) to secure bottom wear pad at front of intermediate boom. 18-91