TM 10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 12-19. Hydraulic Reservoir and Filter. (Sheet 3 of 11) REMOVAL 5. Using a 1-1/4"   open end wrench. remove indicator (8) and adapter (9) from  rear  of  hydraulic  reservoir (35). NOTE Tag all hose and tube assemblies before  disconnecting  to  aid  in installation. 6. 7. 8. 9. Using a 9/16"   open end wrench, disconnect  tube  assembly  (10). Remove  adapter  (11). Using a 3/4"   socket  and  socket  wrench handle,  remove  four  locknuts  (12), bolts (13), two flanges (14) and disconnect  tube  assemblies  (15  and 16) from front bottom of hydraulic reservoir  (35). Using  a  9/16"  socket.  socket  wrench handle  and  open  end  wrench,  remove nut (17), clamps (18 and 19) and bolt (20) from right side of hydraulic reservoir  (35). Move  breather  tubes to one side. Go to sheet 4 12-172