INTRODUCTION
Section I. GENERAL
1-1. Scope
1 - 3 . Reporting of Errors
a. These instructions are published for use by
Report of errors, omissions, and recommendations
personnel to whom the John R. Hollingsworth Co.
for improving this publication by the individual
Model JHGV7.5A generator is issued. Chapters 1
u s e r is encouraged. Reports should be submitted on
and 2 provide information on preventive main-
DA Form 2028 (Recommended Changes to
tenance checks and services, troubleshooting, and
P u b l i c a t i o n s ) and forwarded direct to Commanding
organizational maintenance of equipment, ac-
G e n e r a l , U.S. Army Mobility Equipment Command,
ATTN: AMSME-MPP, 4300 Goodfellow Boulevard,
cessories, components and attachments. Also in-
St. Louis, Mo. 63120.
cluded are descriptions of main units and their
functions in relationship to other components.
1-4. Administrative Storage
b. Numbers in parentheses following nomen-
Refer to TM 740-90-1 (Administrative Storage of
clature callouts on illustrations indicate quantity:
Equipment), for information and instructions
numbers preceding nomenclature callouts indicate
pertaining to organizational administrative storage.
preferred sequence.
1-2. Forms and Records
Use
Maintenance forms, records and reports which are
Refer to TM 740-90-1 (Administrative Storage of
to be used by maintenance personnel at all main-
Equipment), for information and instructions
tenance levels are listed and prescribed by TM 38-
pertaining to organizational administrative storage.
750.
Section II. DESCRIPTION AND DATA
Weight . . . . . . . . . . . . . . . . . . . . . . 810 lbs.
1-6. Description
Eng. Mfr. . . . . . . . . . . . . . . . . . . . . WISCONSIN MOTORS
A general description of the generator set is con-
Model . . . . . . . . . . . . . . . . . . . . . . . MVH4D
tained in TM 5-6115-440-10. A more detailed
(2) Starter generator plate.
description of specific components and assemblies
Aircraft DC Generator:
are contained in the applicable sections of this
Weight . . . . . . . . . . . . . . . . . . . . 5l.5 lbs.
manual. Detailed descriptions of the components of
Volts . . . . . . . . . . . . . . . . . . . . . 30
the generator set are provided in the applicable
Amps . . . . . . . . . . . . . . . . . . . . . . 300
Rotation . . . . . . . . . . . . . . . . . . Clockwise
maintenance paragraphs of this manual.
Speed RPM . . . . . . . . . . . . . . . .4500/6500
Model . . . . . . . . . . . . . . . . . . . . . 30010-004
Lear Siegler, Inc.
Power Equipment Division
major identification plates. The information con-
Cleveland, Ohio
tained on the plates is listed below.
b. Tabulated Data.
(1) Generator set plate.
(1) Generator set.
U.S. Army Generator Set . . . . Gasoline engine
Manufacturer . . . . . . . . John R. Hollingsworth Co.
Stock Number . . . . . . . . . . . . . . . FSN 6115-074-6396
Model . . . . . . . . . . . . . . . . . . . . . . JHGV7.5A
Manufacturer . . . . . . . . . . . . . . . . John R. Hollingsworth Co.
Type . . . . . . . . . . . . . . . . . . . . . . Gasoline engine
Model . . . . . . . . . . . . . . . . . . . . . . JHGV7.5A
(2) Engine.
Volts . . . . . . . . . . . . . . . . . . . . . . . 28 DC
Manufacturer . . . . . . . Wisconsin Motors
Amps . . . . . . . . . . . . . . . . . . . . . . . 268
Type . . . . . . . . . . . . . . . . . . . . . . . Air-cooled
KW . . . . . . . . . . . . . . . . . . . . . . . . 7.5
Model . . . . . . . . . . . . . . . . . . . . . . MVH4D
RPM . . . . . . . . . . . . . . . . . . . . . . . . 2800
Specification . . . . . . . . . . . . 305962 (MIL-E-11275-D)
Contract No . . . . . . . . . . . . . . . . . DAAK01-67-C-D402,
Number of Cylinders. . . . . . . . . . . 4
DAAK01-69-C-6628
Cycle . . . . . . . . . . . . . . . . . . . . . . . 4
Length . . . . . . . . . . . . . . . . . . . . . . . 40 in.
RPM . . . . . . . . . . . . . . . . . . . . . . . 2725
Width . . . . . . . . . . . . . . . . . . . . . . . 40 in.
Bore . . . . . . . . . . . . . . . . . . . . . 3 in. (inches)
Height . . . . . . . . . . . . . . . . . . . . . .40 in.
