TM-5-2350-377-13-P

ARMORED COMBAT EARTHMOVER (ACE), M9

TECHNICAL MANUAL; OPERATOR AND FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST SUPPORTING THE HYDRAULIC BLADE FOLDER-TRACK TENSIONER

JUNE 2012

TM-5-2350-377-13-P - Page 104 of 404

HYDRAULIC INSTALLATION - Continued

STEP

1.

Perform spool valve checks.

a.

To test spool valve, fold and unfold blade in SPRUNG mode.

b.

Have assistant start engine.

c.

Have blade in folded position; to unfold blade, lift manual override spool valve Z4 (Figure 1, Item 1).

d.

Have blade in unfolded position; to fold blade, depress manual override spool valve Z4

(Figure

1,

Item

1).

e.

Stop engine; relieve hydraulic pressure.

2

3

4

T00801HBF

1

Figure 1.

Test Spool Valve.

CONDITION/INDICATION

Does blade fold or unfold?

DECISION

YES - Go to Track (Left or Right) Will Not Tighten or Loosen, HBF-TT (Electrical) (WP

0012).

NO - Go to Step (2).

TM 5-2350-377-13&P

0016

0016-2