TM 5-3820-233-35/1
INTRODUCTION
Section I. GENERAL
U.S. Army Mobility Equipment Command,
1. Scope
4300 Goodfellow
ATTN:
AMSME-MPP,
a. These instructions are published for the
Boulevard, St. Louis, MO. 63120.
use of direct and general support and depot
c. Report all equipment improvements rec-
maintenance personnel maintaining the "Iowa
ommendations as prescribed by TM 38-750.
Manufacturing Model 2A-2A Portable Jaw
Crusher." They provide information on the
maintenance of the equipment, which is be-
a. DA Form 2258 (Depreservation Guide
yond the scope of the tools, equipment, per-
of Engineer Equipment).
sonnel, or supplies normally available to using
b. For other record and report forms appli-
organizations.
cable to direct and general support and depot
b. Report of errors, omissions, and recom-
maintenance, refer to TM 38-750.
mendations for improving this publication by
Note. Applicable forms, excluding Standard Form
the individual user is encouraged. Reports
46 (United States Government Motor Vehicles Op-
should be submitted on DA Form 2028 (Rec-
erator's Identification Card) which is carried by the
ommended Changes to DA Publications) and
operator, shall be kept in a canvas bag mounted on the
forwarded direct to Commanding General,
equipment.
Section II. DESCRIPTION AND DATA
crushed (based on
3. Description
material weight of
A general description of the Portable Jaw
100) Ibs. per cubic
Crusher, the location and description of the
foot)
identification and instruction plates, and in-
c. Engine.
formation on the differences in models are
Manufacturer _ _ _ _ _ _ _ _ General Motors
contained in the Operator and Organizational
Model _ _ _ _ _ _ _ _ _ _ _ 4 0 3 l C
Maintenance Manual. The repair and mainte-
S e r i e s _ _ _ _ _ _ _ _ _ _ _ _ 71
No. of cylinders _ _ _ _ _ _ _ 4
nance instructions are described in appropri-
Displacement _ _ _ _ _ _ _ _ 284 cubic inches
ate sections of this manual.
B o r e _ _ _ _ _ _ _ _ _ _ _ _ 4.25 inches
S t r o k e _ _ _ _ _ _ _ _ _ _ _ 5 inches
Compression ratio _ _ _ _ _ 17:2
Firing order _ _ _ _ _ _ _ _ 1-3--4-2
a. General. This paragraph contains all the
Crankshaft rotation _ _ _ _ Clockwise
overhaul data pertinent to direct and general
(viewed from front)
support and depot maintenance personnel. A
Rated horsepower (@
113 HP
1800 RPM).
wiring diagram (fig. 1) is also included.
Low idle speed _ _ _ _ _ _ _ 550 RPM
b . C a p a c i t y of C r u s h e r .
High idle speed _ _ _ _ _ _ _ 1890 RPM
1800 RPM
Governed full load
Rating _ _ _ _ _ _ _ _ _ _ _ 35 tons per hour of 1-1/2"
material @80%
speed.
