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 428 of 790

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

0018 00--15

REAR OF VEHICLE RAISES IN SPRUNG, BUT NOT UNSPRUNG MODE -- Continued

0018 00

Figure 8. SPRUNG/UNSPRUNG Control Valve Control Rod Travel

SPRUNG/UNSPRUNG CONTROL VALVE LINKAGE ADJUSTMENT

WARNING

Do not operate ejector when personnel are in bowl. Do not work in

bowl unless ejector lock is engaged. Failure to comply may result in

severe injury or death to personnel.

NOTE

All control rods are adjusted the same way. This procedure

covers the SPRUNG/UNSPRUNG control rod.

Note position of control valve plunger (Figure 8, item 1) when SPRUNG/UNSPRUNG

control lever is in neutral (off) position.

NOTE

Normal control valve plunger travel is 9/32 in. (7 mm).

Remove cotter pin (Figure 8, item 2), straight pin (Figure 8, item 6), and clevis (Figure 8,

item 5) from control valve plunger (Figure 8, item 1). Discard cotter pin (Figure 8, item

2).

Loosen jam nut (Figure 8, item 4). Turn clevis (Figure 8, item 5) clockwise to shorten

rod (Figure 8, item 3) and counterclockwise to lengthen rod (Figure 8, item 3) as

necessary to obtain correct control valve plunger (Figure 8, item 1) travel.

Hold measuring device (Figure 8, item 7) on face of SPRUNG/UNSPRUNG control

valve. Have assistant move SPRUNG/UNSPRUNG lever between SPRUNG and

UNSPRUNG mode. Measure distance of plunger travel.

When rod (Figure 8, item 3) is adjusted for the desired length of travel, coat threads of

rod (Figure 8, item 3) with sealing compound primer and sealing compound. Tighten

jam nut (Figure 8, item 4) against clevis (Figure 8, item 5).

Connect clevis (Figure 8, item 5) to control valve plunger (Figure 8, item 1) with straight

pin (Figure 8, item 6) and new cotter pin (Figure 8, item 2).