ARMY T M  5 - 6 1 1 5 - 6 1 2 - 12 M A R I N E     C O R P S     T M     6 1 1 5 - 1 2 /7 AIR    FORCE T O     3 5 C 2 - 3 - 4 7 1 - 1 NAVY A G - 3 2 0 B 0 - 0 M M - 0 00 4 - 8 4 . CURRENT SHUNT ( 1 0 00 AMP) . (cont) b. Removal. (cont) (5) Loosen nut (12). (6)  Remove bolt (13) and lockwasher  (14). Rotate conductor bus (15) away from current shunt. Remove washer (16). (7) Remove self-locking nut (17), washer (18), and screw (19) that secure current shunt to shunt mounting bracket (20). Remove  current  shunt. c. Installation. (1)  Place  current  shunt  (11)  on shunt  mounting  bracket  (20). (2) Install screw (19)  through shunt and shunt mounting bracket. Secure with washers (18) and self-locking nuts (17). Torque   to 32-35 inch pounds (3.6-3.9 Nm). (3) Place washer (16) on terminal A of current shunt. Rotate bus (15)  toward  terminal mounting holes  are alined. conductor bus to terminal lockwasher (14) and bolt (13). (4) Tighten nut (12). (5)  Place  washer  (10) conductor A  until Secure A   with and wire P108AOO (9) on terminal B. Secure with lockwasher (6) and bolt (7). (6)  Connect  wire  U109A18  (1)  to terminal D  with  lockwasher  (3)  and screw (2) and tighten, Remove tag. (7) Connect wire U11OA18 (4) with lockwasher   (6)   and   screw   (5)   and tighten. Remove tag. 4 - 1 56 (8) Install component mounting panel  (paragraph  4-82). 4 - 8 5 . TERMINAL BOARDS  . Mainte- nance of terminal boards TB1 and TB6 (figure 4-53) consists of inspection and replacement. Procedures are the same for both boards. a. Inspection. (1)  Remove  power support. cable from cable WARNING To  prevent  injury,  ensure  that battery  is disconnected  before performing maintenance on electrical  components. (2) Disconnect battery cable plug connector. (3)  Unlatch  and  open  inlet  air housing access door. Secure in open position. (4) Loosen turnlock fasteners and remove  engine  housing  access  cover. (5) Remove air baffle (paragraph 4-22). (6)  Ensure  that are  securely  mounted. (7)  Ensure  that terminal boards Tighten if loose. all wires are securely attached. Tighten if loose. (8) If terminal boards are dirty, clean with compressed air or electrical grade solvent. (9) Replace damaged. terminal b  o  a  r  d  s   i  f