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 162 of 790

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

0010 00--9

BUMP STOPS INOPERATIVE -- Continued

0010 00

Figure 5. HDC Control Box

LEFT AND RIGHT BUMP STOP CIRCUIT TEST

Stop engine; relieve hydraulic pressure.

Reset all HDC solenoid valves by selecting the RESET VALVES button (Figure 5, item 5)

on the HDC control box.

Have assistant start engine and place vehicle in SPRUNG mode.

For left side bump stop circuit, close left forward manifold valve, by using LINE UP or

LINE DOWN button (Figure 5, item 3), select V9 on the HDC display (Figure 5, item 2).

Close V9 on the HDC display (Figure 5, item 2), by selecting the CHANGE POSITION

button (Figure 5, item 4) on the HDC control box. Read transducer T--9 hydraulic

pressure on the HDC display (Figure 5, item 1).

For right side bump stop circuit, close right forward manifold valve, by using LINE UP or

LINE DOWN button (Figure 5, item 3), select V10 on the HDC display (Figure 5, item 2).

Close V10 on the HDC display (Figure 5, item 2), by selecting the CHANGE POSITION

button (Figure 5, item 4) on the HDC control box. Read transducer T--8 hydraulic

pressure on the HDC display (Figure 5, item 1).