4-50. Hydraulic Reservoir Assembly. - Continued
b. Replace. (figure 4-66)
When working under boom, support boom by blocking or other suitable means.
(1) Raise boom (1) fully and block in position.
(2) Remove filler cap (2).
(3) Open drain plug (3) and drain fluid into suitable container.
When disconnecting any hydraulic line, open line slowly and protect face, as hydraulic oil may spray out
due to residual pressure in system.
When removing hoses, have a suitable container to drain oil from hoses. Also cap all hoses and ports
immediately to prevent dirt or foreign matter from entering the system.
Tag and disconnect three hydraulic lines (4) from hydraulic reservoir assembly (5).
Connect hydraulic reservoir assembly (5) to a suitable lifting device.
Remove four nuts (6), lockwashers (7) and bolts (8) and hydraulic reservoir assembly (5).
Install hydraulic reservoir assembly (5) and secure with four bolts (8), lockwashers (7), and
Apply antiseize tape to hydraulic lines fitting and connect three hydraulic lines (4) to hydraulic reservoir as-
Close drain plug (2).
Over filling reservoir will cause overflow when boom is lowered.
Fill reservoir with hydraulic fluid until level is halfway between upper and lower marks on level gage (9).
Close filler cap (2).
Raise and lower boom (1) several times. Raise boom (1) to full vertical position and recheck level, and add
fluid as needed.