TM 9-2350-267-10
PRIMARY HYDRAULIC PUMP OPERATION - Continued
2. Open hydraulic dump valve by turning knob (2) fully counterclockwise.
3. Push in BACK-UP HYDRAULIC SYSTEM selector valve knob (3).
4. Start APU (p 2-116).
5. Check pressure gage (4) on hydrau-
lic control panel. With pump operat-
ing, but no hydraulic actuators oper-
ating, pressure gage should indicate
between 100 to 300 psi.
6. Operate hydraulic system as neces-
sary (p 2-129 to 2-130 and 2-148
thru 2-171).
7. To turn off primary pump, shut down
APU (p 2-122).
2-130