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 286 of 343

TM 9-2350-358-BD

13-12. ISOLATION OF NONESSENTIAL SYSTEMS (IF-146/VRC FILTER)

General Information:

This procedure gives Instructions for isolating and bypassing the IF/1461/NRC filter.

Limitations:

Possible loss of all communications.

Personnel/Time Required:

•

1 soldier

•

0.2 hour

Procedural Steps:

CAUTION

Without the IF-1461/VRC filter in the circuit, voltage spikes will be routed through the

communications equipment and damage could occur.

Bypass the suppressor only as a last

resort.

1.

Locate the IF-1461/VRC filter in the vicinity of the driver's compartment.

2.

Disconnect the power cable from IF-146/VRC filter connector.

3.

Disconnect the CX-4723 cable from the driver's intercom box C-2298.

13-18