TM 10-3930-664-24 Section XXII.   NON-ELECTRICAL GAGE MAINTENANCE 2-165. HYDRAULIC RESERVOIR SIGHT GAGE REPLACEMENT This   task   covers:   Removal,   Cleaning,   Inspection,   and Installation INITIAL SETUP: Tools and Test Equipment: General Mechanics Tool Kit (1, App.   E) References: LO 10-3930664-12 A. REMOVAL 1. Remove    cleanout     cover     (1)     from     hydraulic reservoir  (6)  by  removing  screw  (2)  and  washer (3). 2. Remove   and   inspect   gasket   (4).         Replace   if damaged. CAUTION Do   not   remove   hollow   bolts   (7)   from sight   gage   (5).         Gage   -rings   will   be damaged. NOTE Hydraulic reservoir sight gage and attaching  hardware  are  supplied  as  an assembly   kit.         If   any   component   is damaged   during   removal,   replacement of the entire assembly will be required. 3. Remove  hydraulic  reservoir  sight  gage  (5)  from hydraulic   reservoir   (6)   by   removing   loosening hollow  bolts  (7)  and  removing  washers  (8)  and nuts (9). B. CLEANING Clean  hydraulic  reservoir  sight  gage  in  accordance  with paragraph 1-24. 2-454