TM-9-2350-273-BD

M48/M60 SERIES TANK, COMBAT FULL-TRACKED 105-MM GUN

TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; BATTLEFIELD DAMAGE ASSESSMENT AND REPAIR

TM-9-2350-273-BD - Page 185 of 288

TM 9-2350-273-BD

COMMUNICATIONS SYSTEM

Materials/Tools:

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Wire, 4-conductor, 18-gauge 5-foot length or cable, telephone, WD-l/TT, 5-foot

llength, (two required) (cut back three steel strands of the two sections)

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Connector, UG-273

Handset, H-189/GR, or standard CVC helmet

Plate, Soviet chest

Transceiver, Soviet, R-123M (with power supply)

Wire, 2-conductor, 12-gauge (minimum size), 3-foot length

Rope, lo-foot length

Gun, soldering

Solder, rosin-core

Other Options:

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Substitute radio with:

1. Foreign allied equipment (Refer to para. 11-27).

2.

Foreign AN/VRC-12 series equipment. (Refer to para. 11-25.)

Procedural Steps:

NOTE

The AN/VIC-1 intercom should not have the R-123M wired

through it. For proper operation of the intercom while the

R-123M is being used, set the INSTALLATION SWITCH on

the AM-1780 to INT ONLY position.

1. Locate the power cable that runs from the turret wall to connection J-21 on the

bottom of MT-1029. Remove the cable from the J-21 connection.

Without removing

the connector from the cable, strip back and remove approximately four inches of the

outer insulation. Stagger the splices, and scrape approximately 1/4 to l/2-inch of the

inner insulation off each of the four wires in the cable.

2.

Use a jumper cable of at least 12-gauge wire, and attach both the red and the

white wires in this power cable to the positive side of the Soviet power supply. (Point

A.)

11-30