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 356 of 790

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

0016 00--53

HYDRAULIC OIL OVERHEATS -- Continued

0016 00

EJECTOR RELIEF VALVE ADJUSTMENT -- CONTINUED

Disable ejector; manually close V23 (Figure 38, item 1) on the DCV bank.

Using LINE UP or LINE DOWN button (Figure 39, item 3), select V1 on the HDC display

(Figure 39, item 2). Close V1 on the HDC display (Figure 39, item 2) by selecting the

CHANGE POSITION button (Figure 39, item 4) on the HDC control box.

Start engine.

Loosen jam nut (Figure 40, item 1) on ejector relief valve.

While observing transducer T--2 hydraulic pressure on the HDC display (Figure 39,

item 1); turn relief valve adjustment (Figure 40, item 2) clockwise (to increase pressure)

or counterclockwise (to decrease pressure) until hydraulic pressure is within limits.

Tighten jam nut (Figure 40, item 1).

Stop engine; relieve hydraulic pressure.

Enable ejector; manually open V23 (Figure 38, item 1) on the DCV bank. Using LINE

UP or LINE DOWN button (Figure 39, item 3), select V1 on the HDC display (Figure 39,

item 2). Open V1 on the HDC display (Figure 39, item 2) by selecting the CHANGE

POSITION button (Figure 39, item 4) on the HDC control box.

Figure 38. DCV Bank

Figure 39. HDC Control Box

Figure 40. Ejector Relief Valve