APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
While reading transducer T-3 hydraulic pressure on the HDC display (Figure 3, Item 1), rotate adjusting
screw (Figure 4, Item 3) clockwise to increase pressure; counterclockwise to decrease pressure, until
correct pressure is indicated.
Figure 4. Directional Control Valve (DCV) Bank.
Tighten jam nut (Figure 4, Item 1).
Stop engine; relieve hydraulic pressure.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 3, Item 2) on the HDC
Can the 13R main relief valve be set to develop hydraulic pressure between 3,950-4,050 psi (27,235-27,925
YES - If transducer T-3 hydraulic pressure is between 3,950-4,050 psi (27,235-27,925 kPa), verify problem is
NO - Go to Step (3).