TM 5-2350-378-23&P
0014
FRONT CORNER (LEFT OR RIGHT) DOES NOT RAISE IN SPRUNG OR UNSPRUNG MODE - Continued
STEP
1.
Perform front actuator port 9 pressure test using the Hydraulic Diagnostic Center (HDC).
a.
Reset all HDC solenoid valves by selecting RESET VALVES button (Figure 1, Item 2) on HDC control
box.
b.
Have assistant start engine and move SPRUNG/UNSPRUNG lever to SPRUNG mode.
c.
Read transducer T-8 (right) and T-9 (left) hydraulic pressure on HDC display (Figure 1, Item 1).
CONDITION/INDICATION
Is transducer T-8 (right) and T-9 (left) hydraulic pressure greater than 2,500 psi (17,238 kPa)?
DECISION
YES - Go to Step (3).
NO - Go to Step (2).
STEP
2.
Perform front actuator port 3 pressure test using HDC.
a.
Reset all HDC solenoid valves by selecting RESET VALVES button (Figure 1, Item 2) on HDC control
box.
b.
Have assistant start engine and move SPRUNG/UNSPRUNG lever to UNSPRUNG mode and
SUSPENSION CONTROL lever to RAISE.
c.
Read transducer T-5 (right) and T-6 (left) hydraulic pressure on HDC display (Figure 1, Item 1).
1
2
T01203HDC
Figure 1. Hydraulic Diagnostic Center (HDC) Control Box.
d.
Stop engine; relieve hydraulic pressure.