TM 5-3810-289-12
CHAPTER 1
INTRODUCTION
Section I. GENERAL
1-1. Scope
1-2.
Maintenance Forms and Records
a. This manual contains instructions for us by
Maintenance forms, records, and reports which are to be
personnel to whom model 22BM crane-shove is issued.
used by maintenance personnel at all maintenance levels
It provides information on operation preventive
are listed in and prescribed by TM 38-750.
maintenance checks and services, an, maintenance and
repair of equipment, accessories components, and
attachments. Also included are descriptions of main
1-3.
Reporting of Errors
units and their functions ii relationship to other
components.
Numbers ii parentheses following
Report of errors, omissions, and recommendations for
nomenclature callouts or illustrations indicate quantity;
improving this publication by the individual user is
numbers preceding nomenclature callouts indicate
encouraged. Reports should be submitted on DA Form
preferred sequence.
2028 (Recommended Changes to Publications) and
forwarded direct to Commanding General, U. S. Army
b.
Instructions for Administrative Storage an
Mobility Equipment Command, ATTN: AMSME-MPP,
Destruction of Materiel to Prevent Enemy Us are
4300 Goodfellow Boulevard, St. Louis, Mo. 63120.
contained in the following technical manuals
TM 740-90-1
Administrative Storage of equipment
TM 750-244-3
Destruction of Materiel to Prevent
Enemy Use
Section II. DESCRIPTION AND DATA
shovel components.
1-4.
Description
(2) The upper works consist of the revolving
a. General. The model 22BM crane-shovel (fig.1-1
frame, main machinery, engine, operating controls, and
and 1-2) is a crawler-mounted lifting crane which can be
the operator's cab.
The necessary controls and
converted to a dragline, clamshell backhoe, shovel, or
instruments provided for operating the crane-shovel are
pile driver. The lifting crane consists of a 30-ft, two-
located in the operator's compartment, in front of and to
section boom, a 121/2-ton capacity hook block, and
the left of the operator's seat.
associated cables. The boom can be lengthened by the
addition of sections between the upper and lower boom
(3) The lower works consist of the steering and
section In addition, a jib can be added to the end of the
propelling machinery, truck frame, crawler frames, track
upper boom assembly. The lifting crane can be used for
rollers and idlers, and the track belts.
unloading heavy cargo, placing steel beams in
construction work, and other heavy lifting jobs. Load
c. Dragline. The dragline consists of the crane
control afforded by the regular hoist line is supplemented
boom, fairlead, dragline bucket, and the hoist and drag
by an independent boom hoist. Full power control of both
cables. The fairlead assembly is mounted inside the
raising and lowering the boom permits accurate spotting
lower section of the boom feet to guide the bucket drag
of the load in the horizontal as well as the vertical plane
cable. The dragline is used for excavating materials
below machine level.
b. Basic Crane-Shovel. The basic crane-shovel is
divided into three sections: the front end equipment, the
d. Clamshell. The clamshell consists of the crane
upper works, and the lower works.
boom, clamshell bucket, and tagline. The
(1) The front end equipment consists of the
crane, dragline, clamshell, backhoe, pile driver, and
1-1
