TM-5-2350-378-24-P

HYDRAULIC DIAGNOSTIC CENTER (HDC) SUPPORTING ARMORED COMBAT EARTHMOVER (ACE), M9

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

TM-5-2350-378-24-P - Page 276 of 790

TM 5--2350--378--24&P

0014 00--5

FRONT CORNER (LEFT OR RIGHT) RAISES IN UNSPRUNG, BUT NOT SPRUNG MODE --

Continued

0014 00

Figure 3. HDC Control Box

SOLENOID VALVE V19 TEST

Start engine.

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 3,

item 5) on the HDC control box.

Using LINE UP or LINE DOWN button (Figure 3, item 3) on the HDC control box.

Select V5 on the HDC display (Figure 3, item 2), and using the CHANGE POSITION

button (Figure 3, item 4), close V5 on the HDC display (Figure 3, item 2).

Move SPRUNG/UNSPRUNG lever to UNSPRUNG. Read transducer T--1 hydraulic

pressure on the HDC display (Figure 3, item 1).

Using LINE UP or LINE DOWN button (Figure 3, item 3) on the HDC control box, select

V5 on the HDC display (Figure 3, item 2). Using the CHANGE POSITION button

(Figure 3, item 4), open V5 on the HDC display (Figure 3, item 3).

Stop engine; relieve hydraulic pressure.