Chapter 1. INTRODUCTION - TM-55-1740-202-13-P0007

TM 55-1740-202-13&P

CHAPTER 1

INTRODUCTION

Section I. GENERAL INFORMATION

1-1. SCOPE. This manual contains maintenance and overhaul instructions for Airmobile Transporter, Model D761 (fig.

1-1), hereinafter called the transporter. The transporter is manufactured by Craig Systems Corp., Lawrence,

Massachusetts under part number 46692-01. The transporter consists of two halves and is a highly mobile, lightweight

four-wheeled vehicle. The transporter can be transported by air or towed over varying terrain separately or coupled to a

mating unit (airmobile shelter or X-4 field containers).

1-2. FORMS AND RECORDS. Maintenance forms, records, and reports which are to be used by maintenance

personnel at all maintenance levels are specified by and listed in DA PAM 738-751.

Section II. DESCRIPTION AND LEADING PARTICULARS

1-3. FUNCTIONAL DESCRIPTION. The front and rear transporter assemblies (figures 1-2 and 1-3) are towed as a unit.

They are coupled together through the holes in each tine, using hardware supplied. In addition, a safety cable ties the

two assemblies together (see fig. 1-1). Once at the shelter site, the transporter assemblies are uncoupled and attached

to the shelter by special mating devices on the shelter and the transporter assemblies. Quick clamps on the front

transporter assembly provide storage areas for the coupling hardware when the transporter assemblies are attached to a

shelter (see fig. 1-4). The lifting jacks are used to lift the transporter and its load to travel configuration prior to

attachment to the tow vehicle. Additional quick clamps provide storage areas for the jack handles when not in use. The

tow vehicle can tow the transporter at speeds up to 50 mph on paved roads and up to 15 mph on unimproved roads.

1-4. TECHNICAL CHARACTERISTICS. The transporter is subdivided into five groups: suspension frame group

(common to front and rear assemblies); front axle group; rear axle group; brake group; and wheel group.

a. Suspension Frame Group. Each front and rear assembly contains a suspension frame group that includes the

following parts:

(1) Suspension frame.

(2) Hydraulic jack.

(3) Two lockout struts.

(4) Two reflector brackets, each supporting two red or amber reflectors.

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