APPENDIX E. T62T-40-1 AND T62T-2B AUXILIARY POWER UNITS

TM 55-4920-424-13&P

APPENDIX E. T62T-40-1 AND T62T-2B

AUXILIARY POWER UNITS

SECTION I

INTRODUCTION AND DESCRIPTION

1-1.

INTRODUCTION.

1-2. This technical manual Appendix provides all instructions necessary for the operation and maintenance of the Mobile

Check/Adjustment Stand, identified by Part Number 45977-100. The Mobile Check and Adjustment/Generator Stand

(figure E-1), hereafter referred to as the Mobile Check stand, is manufactured by the Solar Division of International

Harvester Company, 2200 Pacific Highway, San Diego, California. The Mobile Check Stand depicted in this Appendix

has been modified by Project OLR at Fort Lewis, Washington and is intended for use with the modern family of APUs as a

Check and Adjustment Stand. All differences between the existing configuration and the original are the result of this

effort. Direct any concerns to ATCOM, ATTN: AMSAT I-MEM, DSN: 693-1581.

1-3.

PURPOSE.

1-4. The Mobile Check Stand provides the components and controls necessary to functionally test the Models

T- 62T40-1 and T-62T-2B Auxiliary Power Units (APU) prior to installation in the Aircraft, or upon removal from the

aircraft, or to Check and adjust the units after minor repair or overhaul.

1-5.

ARRANGEMENT OF MANUAL.

1-6. The Appendix is divided into seven sections. Section I identifies the equipment and describes the components and

their functions. Section II gives the procedures necessary to prepare the equipment for use. Section III describes the

adjustments required and the connections necessary for operating the equipment, Section IV list the inspections and

preventive maintenance procedures required to ensure efficient operation. Section V lists all replaceable parts,

assemblies, sub-assemblies, and detail parts of the mobile check stand. Section VI describes the troubleshooting

procedures and remedies. Section VII gives the instructions for removal, repair, and replacement of components.

1-7.

DESCRIPTION.

1-8. The mobile check stand is an open-frame carrier, pivot plated on two pairs of wheels mounted with pneumat ic tires.

Mounting provisions for the models T-62T-40-1, and T-62T-2B auxiliary power units are incorporated together with the

necessary electrical and fuel connections between the unit and the check stand components. The mobile check stand is

equipped with a steering towbar and a mechanical hand brake system. It is weatherproofed to provide protection of

critical components from the elements. The major assemblies mounted on the check stand are: the battery, control

console, exhaust duct, and the fire extinguisher. See figure E-2 for Table of Leading Particulars.

Change 2 E-1