TM10-3930-660-20 7-3. RADIATOR -  SERVICE/REPLACE/TEST  (cont’d) 6.   PULL AND REMOVE MALE  CONNECTOR  (23) OF PULSE TACHOMETER  (24) FROM FEMALE CONNECTOR (25) OF VEHICLE WIRING HARNESS  . 70 REMOVE FAN GUARDS (26)  AND (27) FROM RADIATOR SHROUD ( 28) . a. Remove screw (29) , lockwasher (30) , and flatwasher (31) securing right- hand fan guard (26) to left-hand fan  guard  (27). Discard  lockwasher (30). b. c. d. e. Remove four screws (32), lockwashers (33), and flatwashers (34) retaining the right-hand fan guard (26) to radiator shroud (28). Discard lockwashers   (33). Remove right-hand fan guard (26) from engine compartment. Remove four screws (35), lockwashers (36), and flatwashers (37) retaining left-hand fan guard (27) to radiator shroud  (28). Discard  lockwashers (36). Remove left-hand fan guard (27) from engine compartment. 7-8