Section II. REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT

TM 9-4931-710-14&P

Section II. REPAIR PARTS, SPECIAL TOOLS,

TMDE, AND SUPPORT EQUIPMENT

1-7 COMMON TOOLS AND EQUIPMENT

For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE)

applicable to your unit.

1-8 SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT

Special tools, TMDE, and support equipment required and authorized for repair of the

M139/M139A1/M140/M140A1/M154 alinement devices are listed in the Repair Parts and Special Tools List,

Appendix C of this manual.

1-9 SPARES AND REPAIR PARTS

Spares and repair parts are listed and illustrated in the Repair Parts and Special Tools List, Appendix C of this manual.

Section III. EQUIPMENT DESCRIPTION AND DATA

1-10 EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES

The M139 and M140 alinement devices are small and lightweight. They have a built-in radioisotopetritium (H3) light source

for both day and night operations. The M139A1, M140A1 and M154 alinement devices are small and lightweight. They are

illuminated with a battery pack with an ultra low power light emitting diode (LED) with one (1) AA cell lithium battery with

an on and off switch. Both alinement devices quickly clamp on to artillery piece dovetails to verify the alinement of fire

control components to cannon tubes in the field. The M139 alinement device is used on M198 towed howitzer, and the

M140 alinement device is used on the M102 and M119A1 towed howitzers and M109 self-propelled howitzer. The M154

Alinement device is used on the M777 towed howitzer.

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