TM-9-2350-358-BD

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE

MARCH 1994

TM-9-2350-358-BD - Page 174 of 343

TM 9-2350-358-BD

7-12.

RELAY, MASTER - CONTINUED

References:

TM 9-2350-314-20-1-2

Procedural Steps:

1.

Gain access to master relay and batteries

WARNING

•

Fuel leaks or vapors may be present in engine compartment

which can be ignited by electrical spark.

Fix leaks and ventilate

area before disconnecting master relay cables or battery.

Failure

to do so could result in an explosion and injury or death to

personnel.

•

Master relay cables carry high current.

Before working on

master relay, disconnect negative link on batteries.

Failure to do

so could result in personnel injury or death by electrocution.

2.

Disconnect battery ground cable from shunt.

3.

Disconnect cables from master relay terminals A1 and A2.

7-14