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 485 of 790

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

0022 00--2

APPARENT HDC SYSTEM PROBLEM -- Continued

0022 00

YES

1

Can HDC system functional check--out be performed

successfully (WP 0005 00)?

Perform HDC system functional check--out.

5

If this functional checkout was performed as part of the

weekly HDC system PMCS (WP 0024 00), power off

the HDC system, disconnect it from the vehicle, and

stow the HDC control box and umbilical cable W4.

HDC system appears to be functioning properly and

ready to aid in troubleshooting the M9 ACE hydraulic

system.

2

Is HDC control box and umbilical cable W4 installed

properly with all cable connectors tight? Is HDC system

ground connection in vehicle clean and secure?

Check installation of HDC control box and umbilical cable

W4. Check for clean and secure HDC system ground

connection in vehicle.

If this functional checkout was performed prior to trou-

bleshooting a problem in the vehicle hydraulic system

using the HDC system, refer to the applicable problem

symptom work package (WP 0006 00), as applicable,

and proceed as indicated.

3

Install HDC control box and umbilical cable W4

properly, and tighten all cable W4 connectors and

HDC system ground connection in vehicle.

NO

YES

To block 4

To block 4

NO