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 328 of 790

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

0016 00--25

HYDRAULIC OIL OVERHEATS -- Continued

0016 00

Figure 14. HDC Control Box

Figure 15. DCV Bank

Figure 16. Suspension Relief Valve

SUSPENSION RELIEF VALVE ADJUSTMENT -- CONTINUED

Adjust the pressure as follows: remove cap (Figure 16, item 3) from suspension relief

valve adjusting shaft (Figure 16, item 2) and loosen jam nut (Figure 16, item 1).

Turn adjusting shaft (Figure 16, item 2) clockwise to increase pressure;

counterclockwise to decrease pressure. Read transducer T--13 hydraulic pressure on

the HDC display (Figure 14, item 1). Turn adjusting shaft (Figure 16, item 2) to obtain

proper pressure indication on transducer T--13 (Figure 14, item 1) on the HDC control

box. Tighten jam nut (Figure 16, item 1) and replace cap (Figure 16, item 3).

Stop engine; relieve hydraulic pressure.

Using LINE UP or LINE DOWN button (Figure 14, item 3) on the HDC control box,

select V5 on the HDC display (Figure 14, item 2). Using the CHANGE POSITION

button (Figure 14, item 4), open V5 on the HDC display (Figure 14, item 2). Repeat step

for V12, V13 and V19; opening V12 and V13, and closing V19.

Manually open the ejector inhibit ball valve V23 (Figure 15, item 1) on the DCV bank.