TM 5-2350-378-23&P
0007
APRON AND LEFT-HAND WHEEL CONTROL INOPERATIVE - Continued
d.
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.
1
2
3
T00506HDC
Figure 4. Directional Control Valve (DCV) Bank.
e.
Tighten jam nut (Figure 4, Item 1).
f.
Stop engine; relieve hydraulic pressure.
g.
Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 3, Item 2) on the HDC
control box.
CONDITION/INDICATION
Can the 13R main relief valve be set to develop hydraulic pressure between 3,950-4,050 psi (27,235-27,925
kPa)?
DECISION
YES - If transducer T-3 hydraulic pressure is between 3,950-4,050 psi (27,235-27,925 kPa), verify problem is
solved.
NO - Go to Step (3).
