Section I. Introduction and General Description

Section I

Introduction and General Description

Scope

1.1

a. This manual covers operation and maintenance instructions for the

Mobilizer Model 4003, including Part No.'s 7400050-501 and 7400017-502.

b. Appendix A contains the maintenance allocation chart. The chart

assigns the maintenance functions and repair operations to be performed

by the lowest appropriate maintenance level.

c. Report of errors, omissions, and recommendations for improving this

publication by the individual user is encouraged. Reports should be sub-

mitted on DA Form 2028 (Recommended Changes to DA Publications) and for-

warded direct to: Commanding General, US Army Aviation Systems Command,

ATTN : AMSAV-R-M, PO BOX 209, St. Louis, Missouri 63166.

1.2

Equipment Records

The Army equipment record system and procedures established in TM 38-750

apply to this equipment. Applicable forms as required by TM 38-750 shall

be used.

1.2.1

Purpose of the Equipment

The mobilizer is used to transport an electronic equipment shelter used

to house a working system, and has a maximum payload capacity of 4000

pounds. It is designed for highway operation. A shelter adapter kit is

used to provide attachment points on the shelter for mounting the mobilizer.

1.3

Description of Equipment

The mobilizer is designed to lift and transport an equipment shelter and

its associated equipment and can be attached to the shelter and made

ready for use by one man in less than twenty minutes. The mobilizer may

be towed with front and rear dollies coupled to each other when not

attached to a shelter. The front dolly is steerable.

1.3.1

Front Trailer Dolly

The front dolly is the means of mechanical connection between the mobilizer

and the prime mover. The dolly assembly consists of an axle assembly,

wheels, brake assemblies, steering linkage, a drawbar assembly, an adapter,

and a high pressure hydraulic system. The axle assembly is the main sup-

porting structure of the dolly and has the suspension assembly, steering

linkage, drawbar assembly, hydraulic cylinders, struts, adapter, high

pressure hydraulic system and brake system components attached to it.

Each wheel is independently suspended, measures 30 inches in diameter,

has two roller bearings and is mounted with a 700X16 6-ply tube type tire.

Part No. 7400050-501 model is equipped with automotive type brakes on the

front spindles only. Part No. 7400017-502 model has pneumatically

actuated, hydraulically operated service brakes on each spindle mounted

inboard of the wheel. A parking brake assembly is incorporated in the

rear axle brakes. Both models have an adapter, located on the aft por-

tion of the dolly and provides a point of attachment for the shelter and

the rear dolly when the shelter is not in use. The high pressure