TM-5-2350-378-23-P

ARMORED COMBAT EARTHMOVER (ACE), M9; HYDRAULIC DIAGNOSTIC CENTER

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JUNE 2012

TM-5-2350-378-23-P - Page 328 of 644

APPARENT HYDRAULIC DIAGNOSTIC CENTER (HDC) SYSTEM PROBLEM - Continued

STEP

18.

Check for 28 VDC at parking brake relay side of HDC circuit breaker (Figure 19).

T01919HDC

Figure 19.

Hydraulic Diagnostic Center (HDC) Simplified Power Input Circuit Components.

CONDITION/INDICATION

Is 28 VDC present at parking brake relay (output) side of HDC circuit breaker?

DECISION

YES - Replace lead assembly 12496958 (WP

0029).

NO - Replace HDC circuit breaker (WP

0028).

TM 5-2350-378-23&P

0021

0021-16