TM 10-3930-669-20 (7) Remove two screws (28), lock washers (29), and connector strip (27) from  engine  hull  (30).    Discard  lock washers. (8) Remove two screws (31), lock washers  (32),  and  resistor  base  (33) from  engine  hull  (30).    Discard  lock washers. b. Installation. (1) Install   resistor   base   (33)   on   engine hull  (30)  with  two  lock  washers  (32) and screws (31). (2) Install  connector  strip  (27)  on  engine hull  (30)  with  two  lock  washers  (29) and screws (28). (3) Install stud (26) and nut (25) on base (27). (4) Install  two  resistor  plates  (24)  on  two terminals  (12  and  13)  with  six  shims (23) and two nuts (22). 7-87