TM  5-6675-302-14&P c. Reassembly and installation. (1) Refer to figure 5-9 (model 242406) or figure 5-10  (model  USATS-79). (2) Install  the  optical  plummet  (para  5-9). (3) Install the circular level (para 5-8). (4) Install  the  leveling  screws  (para  5-7). (5) Install the base plate (para 5-6). Section IV. REPAIR OF TARGET ASSEMBLY (MODEL 242406) 5-11.  General.   On  model  242406  the  target assembly consists of a target frame, a target level, a  base  with  3  feet  for  clamping  to  the  tribrach,  a base  sleeve,  and  a  bracket.  Refer  to  section  V  for repair  of  the  target  assembly  on  model  USATS-79. 5-12. Target Frame. a. Removal. (1) Refer  to  paragraph  4-10,  and  remove  the target  assembly  from  the  tribrach. (2) Refer to (5) and (6), figure 5-11, and remove the frame from the target assembly. b.  Disassembly,  Repair  and  Reassembly. (1) Refer  to  figure  5-12,  and  disassemble  the frame  assembly. (2)  Refer  to  figure  5-12,  and  reassemble  the frame  assembly. c.  Installation.   Reverse  the  procedures  in  a, above. 5-13. Target Level (Model 242406). a.  Removal.   Refer   to   (17),   figure   5-11,   and remove   the   level   assembly   from   the   target asssembly. b. Disassembly, Repair and Ressembly. (1)  Refer  to  figure  5-13  and  disassemble  the level  assembly. (2)  Replace   defective   parts   with   serviceable parts. (3)  Refer  to  figure  5-13  and  reassemble  the level  assembly.     C.  Installation.   Refer  to  figure  5-11  and  install the  level  assembly  on  the  bracket. d.    Adjustment.  If,  after  the  circular  level  has   been adjusted (para 5-8), the target level bubble is far  off  center,  the  target  level  is  out  of  adjustment. Tighten  or  loosen  the  adjusting  screw  (9,  fig.  5-13) bring  the  bubble  to  center. 5-14.  Target  Base. a. Removal. 5-12 (1)  Refer  to  paragraph  4-10  and  remove  the target assembly from the tribrach. (2) Refer  to  figure  5-11  and  remove  the  base from the sleeve. b. Disassembly, Replacement, and Reassembly. (1)  Refer  to  figure  5-11  and  disassemble  the base (11, 12, 13 and 14). (2)  Replace   defective   parts   with   serviceable ones. (3)  Refer  to  figure  5-11  and  reassemble  the base. c.  Installation.  Reverse  the  procedures  in  a, above. 5-15.  Base  Sleeve. a. Removal. (1) Remove the base (para 5-14). (2)  Refer  to  figure  5-11  and  remove  the setscrew  (10). b. Disassembly, Replacement and Reassembly. (1) Remove the sleeve (8), spring (16), and nut (15),  figure  5-11  from  the  bracket  shaft. (2)  Replace   defective   parts   with   serviceable parts, (3)  Refer  to  figure  5-11  and  reassemble  the sleeve. c. Installation. (1) Install the sleeve on the bracket shaft and retain with screw (10), figure 5-11. (2) Install the base (para 5-14). 5-16. Bracket. a. Removal. (1) Remove the target frame (para 5-12). (2)  Remove  the  target  level  assembly  (para 5-13). (3) Remove the target base (para 5-14). (4) Remove  the  sleeve  (para  5-15).