I
2-19. TROUBLESHOOTING CHART (continued).
s. UPPER REAR DOOR.
The upper rear door is powered hydraulically by the hydraulic actuator. The hydraulic actuator is powered by
either the primary hydraulic pump or one of the backup hydraulic pumps. It is raised and lowered electrically
by one of two switches located at the rear of the vehicle at the top of the upper rear door and at the bottom near
the APU control box. The upper rear door can also be operated manually by the push buttons on either side
of the directional control valve located underneath the hydraulic control panel.
2-273
TM 6-2350-287-20-1
