PISTON PUMP (BRAKE, HYDRAULIC FAN) MARGIN PRESSURE TEST AND ADJUST CONTINUED
N OT E
Monitor system temperature throughout entire test in order to be sure that temperature
stays within 140° ± 9°F (60° ± 5°C) of normal operating temperature range.
16. Set engine speed to wide open throttle (TM 5-3805-293-10).
17. Check pressure on differential pressure gauge (Figure 27, Item 1). The correct margin pressure is 260 psi
Figure 27. Differential Pressure Gauge.