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 382 of 790

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

HYDRAULIC OIL OVERHEATS -- Continued

0016 00

Figure 55. HDC Control Box

Figure 56. DCV Bank

Figure 57. Suspension Relief Valve

SUSPENSION RELIEF VALVE ADJUSTMENT -- CONTINUED

Stop engine and relieve hydraulic pressure.

Manually close the ejector inhibit ball valve V23 (Figure 56, item 1) on the DCV bank.

Using LINE UP or LINE DOWN button (Figure 55, item 3) on the HDC control box,

select V5 on the HDC display (Figure 55, item 2). Using the CHANGE POSITION

button (Figure 55, item 4), close V5 on the HDC display (Figure 55, item 2). Repeat last

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

Start engine.

Remove cap (Figure 57, item 3) from suspension relief valve adjusting shaft (Figure 57,

item 2) and loosen jam nut (Figure 57, item 1). Observe transducer T--13 hydraulic

pressure on the HDC display (Figure 55, item 1). Turn adjusting shaft (Figure 57, item

2) clockwise to increase pressure or counterclockwise to decrease pressure, as

necessary, to obtain desired pressure. Tighten jam nut (Figure 57, item 1) and replace

cap (Figure 57, item 3).

Continued on page 0016 00--81.

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