Transcriber’s note:
Italic text is denoted by _underscores_, bold text is denoted =thus=.
The original spelling, punctuation and hyphenation has been retained
except for apparent printer’s errors which have been silently corrected.
See further notes at the end of the book.
[Illustration: Cover]
[1]TM 9-879
RESTRICTED
TECHNICAL MANUAL} WAR DEPARTMENT
No. 9-879 } Washington, 18 October 1943
MOTORCYCLE, SOLO
(Harley‐Davidson Model WLA)
_Dissemination of restricted matter.—The information contained
in restricted documents, and the essential characteristics of
restricted materiel, may be given to any person known to be in the
service of the United States, and to persons of undoubted loyalty
and discretion who are cooperating in Government work, but will not
be communicated to the public or to the press except by authorized
military public relations agencies._ (_See also paragraph 18b, AR
380-5, 28 September 1942._)
CONTENTS
PART ONE—VEHICLE OPERATING INSTRUCTIONS
Paragraphs Pages
SECTION I Introduction 1-2 3-6
II Description and tabulated data 3-4 7-8
III Controls and operation 5-13 9-19
IV First echelon, preventive
maintenance services 14-18 20-29
V Lubrication 19-20 30-34
VI Tools and equipment stowage
on the vehicle 21-23 35-38
PART TWO—ORGANIZATIONAL MAINTENANCE
SECTION VII Maintenance allocation 24-25 39-44
VIII Second echelon preventive
maintenance services 26 45-59
IX Organization tools and equipment 27 60
X Trouble shooting 28-38 61-71
XI Engine 39-44 72-77
XII Engine—removal and installation 45-46 78-84
XIII Clutch 47-52 85-95
XIV Transmission 53-58 96-104
XV Chains and sprockets 59-66 105-114
XVI Fuel system 67-74 115-121
XVII Intake and exhaust system 75-81 122-128
XVIII Ignition system 82-89 129-141
XIX Generating system 90-95 142-148
XX Brake system 96-97 149-153
XXI Steering control 98-101 154-166
XXII Sheet metal and equipment 102-111 167-180
XXIII Battery, lighting system, horn 112-118 181-190
XXIV Instrument panel 119-121 191-192
XXV Tires, wheels, and hubs 122-127 193-199
REFERENCES 200
INDEX 201
[Footnote 1: For supersession of quartermaster manuals, refer to
paragraph 2.]
PART ONE—OPERATING INSTRUCTIONS
Section I
INTRODUCTION
Paragraph
Scope 1
Supersession of quartermaster manuals 2
1. SCOPE.
=a.= This technical manual[2] is published for the information and
guidance of the using arm personnel charged with the operation,
maintenance, and minor repair of this materiel.
=b.= In addition to a description of the Harley‐Davidson motorcycle,
this manual contains technical information required for the
identification, use, and care of the materiel. The manual is divided
into two parts. Part One, section I through section VI, gives vehicle
operating instructions. Part Two, section VII through section XXV,
gives vehicle maintenance instructions to using arm personnel charged
with the responsibility of doing maintenance work within their
jurisdiction.
=c.= In all cases where the nature of the repair, modifications,
or adjustment is beyond the scope or facilities of the unit, the
responsible ordnance service should be informed so that trained
personnel with suitable tools and equipment may be provided, or proper
instructions issued.
2. SUPERSESSION OF QUARTERMASTER MANUALS.
=a.= This technical manual, together with TM 9-1879, supersedes and
replaces the following Quartermaster Corps publications:
(1) TM 10-1175—Maintenance manual, motorcycle, solo,
Harley‐Davidson (Model 42-WLA), 11 September 1941.
(2) TM 10-1177—Maintenance manual, motorcycle, solo,
Harley‐Davidson (Models 1940-41-42), 11 September 1941.
(3) TM 10-1331—Maintenance manual, motorcycle, chain drive
Harley‐Davidson (Model 42 WLA, solo).
(4) TM 10-1359—Instruction folder (45-A) motorcycles, solo,
Harley‐Davidson (Model 1941 WLA 45), 25 November 1941.
(5) TM 10-1361—Instruction folder (45-B) motorcycle, solo,
Harley‐Davidson (Model 1941 WLA 45), 25 November 1941.
[Illustration: RA PD 315708
_Figure 1—Top View of Motorcycle_]
[Illustration: RA PD 315709
_Figure 2—Left Side View of Motorcycle_]
[Illustration: RA PD 315710
_Figure 3—Right Side View of Motorcycle_]
[Footnote 2: To provide operating instructions with the materiel, this
technical manual has been published in advance of complete technical
review. Any errors or omissions will be corrected by changes or, if
extensive, by an early revision.]