TM 10-3930-659-10 3-9.  CHECK AND FILL WINDSHIELD WASHER BOTTLE. Visually check windshield washer bottle (1).  If low or empty,  remove  cap  (2)  and  fill  with  windshield  washer solution  (Item  1,  Appendix  D).    Install  cap  on  washer bottle. 3-10.  CHECK AND FILL HYDRAULIC SYSTEM RESERVOIR. a.  Check Hydraulic Oil Level. (1) Park forklift truck on level ground with forks lowered to ground (see paragraph 2-15). (2) Visually check hydraulic level sight gage (2).  Oil must be visible. (3) If hydraulic oil is foamy, notify Unit Maintenance. b.  Fill Hydraulic Oil Reservoir. (1)  Remove hydraulic reservoir fill cap (1) and add hydraulic oil until oil is visible in hydraulic level sight gage (2) (see LO 10-3930-659-12). Replace hydraulic reservoir fill cap. 3-16