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 489 of 790

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

APPARENT HDC SYSTEM PROBLEM -- Continued

0022 00

10

Continue with HDC system functional

check out (WP 0005 00).

6

YES

from block 4

7

Does HDC system appear to power up after normal

start--up delay and perform start--up BIT (Built--In Test)?

YES

NO

Does HDC system perform a start--up

BIT (Built--In Test) and display a

“PASS” message on the HDC control

box LCD screen?

8

Power off HDC system. Wait a

few moments, then power up

HDC system again.

Does same problem still exist?

YES

NO

9

Replace HDC control box.

YES

NO

To block 38

To block 43

0022 00--6/7 blank