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 374 of 790

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

0016 00--71

HYDRAULIC OIL OVERHEATS -- Continued

0016 00

Figure 51. Main Accumulator Charging

MAIN ACCUMULATOR CHARGING

CAUTION

Ensure regulator valve is fully backed off to relieve tension on

diaphragm. Failure to comply may result in damage to equipment.

NOTE

Rapid pressurization will cause an inaccurate pressure reading due to

heating of nitrogen gas. Always pressurize slowly.

Adjust regulator valve (Figure 51, item 3) on nitrogen tank (Figure 51, item 1) to

1.750--1,850 psi (12,066--12,756 kPa).

Open shutoff valve (Figure 51, item 4). Read pressure measuring device (Figure 51,

item 5). When pressure reaches 1.750--1,850 psi (12,066--12,756 kPa), close shutoff

valve (Figure 51, item 4), nitrogen tank valve (Figure 51, item 2), and accumulator

charge valve (Figure 51, item 6).

Wait 15 minutes and open charge valve (Figure 51, item 6). Read pressure measuring

device (Figure 51, item 5) to determine if accumulator can retain the charge.