
REVISION
MODEL
337, T337, F337 and FT337
SUPER SKYMASTER
SERIES
1965 THRU 1973
SERVICE MANUAL
CHANGE 2
5 JANUARY 2004
D2500C2-13
INSERT THE FOLLOWING CHANGED
PAGES INTO THE BASIC MANUAL

Cessna
A Textron Company
Service Manual
1965
Thru
1973
MODEL 337,
T337, F337 and FT337
SUPER SKYMASTER SERIES
Member of GAMA
FAA APPROVAL HAS BEEN OBTAINED ON TECHNICAL DATA IN THIS PUBLICATION THAT AFFECTS AIRPLANE TYPE DESIGN.
CHANGE 2 TO THE BASIC MANUAL INCORPORATES TEMPORARY REVISION 5 DATED 1 APRIL 1992,
TEMPORARY REVISION 6 DATED 1 JUNE 1992, AND TEMPORARY REVISION 7 DATED 17 MARCH 1995.
COPYRIGHT © 2004
CESSNA AIRCRAFT COMPANY
WICHITA, KANSAS, USA
D2500-2-13
1 FEBRUARY 1973
5 JANUARY 2004
Change 2

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
LIST OF EFFECTIVE PAGES
Dates of issue for original and changed pages are:
Original ......... 0............ 1 February
Change.............1 ............. 1 October
Change ........... 2............. 5 January
1973
1990
2004
Total number of pages in this publication is 834, consisting of the following:
Page Change
No. No.
Title ................................... 2*
A ....................................... 2*
i thru vi . .................... 2*
1-1 thru 1-5 ....................... 0
1-6 (Blank) ........................ 0
2-1 thru 2-17 ..................... 0
2-18 .................................. 1
2-19 thru 2-24 ................... 0
2-25 thru 2-26 .................... 2*
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8 -1 ..................................... 1
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Page
No.
Change
No.
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10-47 thru 10-48 ................ 1
10-48A thru 10-48D ........... 1
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10-51 thru 10-56 ................ 0
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14-1 thru 14-2 .................... 2*
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14-28A thru 14-28B ........... 2*
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18-105 (Blank) ................... 0
18-106 thru 18-182 ............ 0
NOTE: Insert latest changed pages. Destroy superseded pages.
NOTE: * Indicates pages changed, added, or deleted by the current change.
Change 2
Jun 5/2004 © Cessna Aircraft Company A
I

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
TABLE OF CONTENTS
SECTION PAGE
1 GENERAL .............................................................. 1-1
2 GROUND HANDLING, SERVICING, LUBRICATION, AND INSPECTION ........ 2-1
3 FUSELAGE ............................................................. 3-1
4 WINGS, BOOMS, AND EMPENNAGE ...................................... 4-1
5 LANDING GEAR AND HYDRAULIC SYSTEM ................................ 5-1
6 AILERON CONTROL SYSTEM ............................................ 6-1
7 WING FLAP CONTROL SYSTEM .......................................... 7-1
8 ELEVATOR, ELEVATOR TRIM AND FLAP/ELEVATOR TRIM
INTERCONNECT SYSTEMS .............................................. 8-1
9 RUDDER AND RUDDER TRIM CONTROL SYSTEM ......................... 9-1
10 ENGINES (NON-TURBOCHARGED) ....................................... 10-1
10A ENGINES (TURBOCHARGED) ................... ......................... 10A-1
11 FUEL SYSTEM .......................................................... 11-1
12 PROPELLERS AND PROPELLER GOVERNORS ................... ......... 12-1
13 UTILITY SYSTEMS ....................................................... 13-1
14 INSTRUMENTS AND INSTRUMENT SYSTEMS ............................. 14-1
15 ELECTRICAL SYSTEMS (THRU 1970 MODELS) ............................ 15-1
15A ELECTRICAL SYSTEMS (BEGINNING WITH 1971 MODELS) ................. 15A-1
16 STRUCTURAL REPAIR .......... ......................................... 16-1
17 EXTERIOR PAINTING .................................................... 17-1
18 WIRING DIAGRAMS ..................................................... 18-1
Change 2
Jan 5/2004 © Cessna Aircraft Company i

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
CROSS-REFERENCE LISTING OF POPULAR
NAME VS. MODEL NUMBERS AND SERIALS
All aircraft, regardless of manufacturer, are certified under model number designations. However popular
names are used for marketing purposes. To provide a consistent method of referring to the various aircraft,
model numbers will be used in this publication unless names are required to differentiate between versions of
the same basic model. The following table provides a cross-reference listing of popular name vs. model
numbers.
POPULAR NAME
SUPER SKYMASTER
TURBO-SYSTEM
SUPER SKYMASTER
MODEL
YEAR
1965
1966
1966
1966
1967
1967
1968
1969
1970
1971
337
337A
337A
337A
337B
337B
337B
337B
337C
337D
337E
337F
337F
1967 T337B
1967 T337B
T337B
1968 T337C
1969 T337D
1970 T337E
1971 T337F
T337F
REIMS/CESSNA SUPER SKYMASTER
REIMS/CESSNA TURBO-SYSTEM
SUPER SKYMASTER
SKYMASTER
REIMS/CESSNA
SKYMASTER
1970 F337E
1971 F337F
F33700001
F33700025
1970 FT337E F33700001
1971 FT337F F33700025
1972
1972
1973
337F
337F
337G
1972 F337F
1973 F337G
33701399
33701450
33701463
F33700046
F33700056
© Cessna Aircraft Company
BEGINNING
SERIAL
MODEL NUMBER
337-0002
337-0240
337-0307
337-0471
337-0526
337-0570
337-0756
337-0979
33701194
33701317
337-0526
337-0570
337-0756
337-0979
33701194
33701317
ENDING
SERIAL
NUMBER
337-0239
337-0305
337-0469
337-0525
337-0568
337-0755
337-0001
337-0470
337-0978
337-1193
33701316
33701398
33700306
337-0568
337-0755
337-0001
337-0978
337-1193
33701316
33701398
33700569
F33700024
F33700045
F33700024
F33700045
33701448
33701462
33701550
F33700055
F33700063
Jan 5/2004
Change 2
ii

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
INTRODUCTION
1. General
WARNING: ALL INSPECTION INTERVALS, REPLACEMENT TIME LIMITS, OVERHAUL TIME LIMITS,
METHODS OF INSPECTION, LIFE LIMITS, CYCLE LIMITS, ETC., RECOMMENDED BY
CESSNA ARE SOLELY BASED ON THE USE OF NEW, REMANUFACTURED, OR
OVERHAULED CESSNA-APPROVED PARTS. IF PARTS ARE DESIGNED,
MANUFACTURED, REMANUFACTURED, OVERHAULED, AND/OR APPROVED BY
ENTITIES OTHER THAN CESSNA, THEN THE DATA IN CESSNA'S
MAINTENANCE/SERVICE MANUALS AND PARTS CATALOGS ARE NO LONGER
APPLICABLE AND THE PURCHASER IS WARNED NOT TO RELY ON SUCH DATA FOR
NON-CESSNA PARTS. ALL INSPECTION INTERVALS, REPLACEMENT TIME LIMITS,
OVERHAUL TIME LIMITS, METHOD OF INSPECTION, LIFE LIMITS, CYCLE LIMITS, ETC.,
FOR SUCH NON-CESSNA PARTS MUST BE OBTAINED FROM THE MANUFACTURER
AND/OR SELLER OF SUCH NON-CESSNA PARTS.
A. The information in this publication is based on data available at the time of publication and is updated,
supplemented, and automatically amended by all information issued in Service Letters, Service
Information Letters, Service Bulletins, Service Newsletters, Supplier Service Notices, Publication
Changes, Revisions, Reissues and Temporary Revisions. Users are urged to keep abreast of the latest
amendments to this publication through information available at Cessna Authorized Service Stations or
through the Cessna Propeller Aircraft Product Support subscription services. Cessna Service Stations
also have been supplied with a group of supplier publications which provide disassembly, overhaul, and
parts breakdowns for some of the various supplier equipment items. Supplier's publications are updated,
supplemented, and specifically amended by supplier-issued revisions and service information which may
be reissued by Cessna. Supplier publications reissued by Cessna automatically amend this publication
and are communicated to the field through Cessna's Authorized Service Stations and/or through Cessna's
subscription services.
B. Inspection, maintenance, and parts requirements for STC installations are not included in this manual.
When an STC installation is incorporated on the airplane, those portions of the airplane affected by the
installation must be inspected in accordance with the inspection program published by the owner of the
STC. STC installations can change systems interface, operating characteristics and component loads or
stresses on adjacent structures of the airplane. Cessna provided inspection criteria may not be valid for
airplanes with STC installations.
C. REVISIONS, REISSUES and TEMPORARY REVISIONS can be purchased from a Cessna Service
Station or directly from Cessna Aircraft Company at the following address:
Cessna Aircraft Company
Department 751C
P.O. Box 7706
Wichita, Kansas 67277-7706
D. Information in this Service Manual is applicable to all U.S. and Foreign Certified 337 Model series
airplanes within the following range of serial numbers; 337-0001 thru 33701550 and F33700001 thru
F33700063. Information unique to a particular country is identified in the chapter(s) affected.
E. All supplemental service information concerning this manual is supplied to all appropriate Cessna Service
Stations so that they have the latest authoritative recommendations for servicing these Cessna airplanes.
Therefore, it is recommended that Cessna owners utilize the knowledge and experience of the Cessna
Service Organization.
Change 2
Jan 5/2004 © Cessna Aircraft Company iii

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
2. Cross-Reference Listing of Popular Name Versus Model Numbers and Serials.
A. All airplanes, regardless of manufacturer, are certified under model number designations. However,
popular names are often used for marketing purposes. To provide a consistent method of referring to
these airplanes, the model number will be used in this publication unless the popular name is necessary to
differentiate between versions of the same basic model. The table on page ii provides a listing of popular
names, model number, and serial numbers.
B. The Cessna Super Skymaster Series (1965 thru 1973) Service Manual has been prepared to assist
maintenance personnel in servicing and maintaining Model 337 series airplanes. This manual provides
the necessary information required to enable the mechanic to service, inspect, troubleshoot, remove, and
replace components or repair systems.
NOTE: This manual is not intended to cover model 337 series airplanes produced after 1973. For
manuals related to these airplanes, please refer to applicable listings in the Cessna Propeller
Aircraft Customer Care Supplies and Publications Catalog.
C. Technical Publications are also available for the various components and systems that are not covered in
this manual. These manuals must be utilized as required for maintenance of those components and
systems, and can be purchased from the manufacturer.
4. Temporary Revisions.
A. Additional information, which becomes available, can be provided by temporary revision. This service is
used to provide, without delay, new information, which will assist in maintaining safe flight/ground
operations. Temporary revisions are numbered consecutively. Temporary revisions are normally
incorporated into the maintenance manual at the next revision.
5. Serialization
A. All airplanes are issued a serial number. This number is assigned as airplane construction begins and
remains with the airplane throughout its service life. This serial number appears on the airplane data plate.
Airplane serial numbers are used to identify changes within the text or within an illustration. The absence
of a serial number in text or illustration indicates the material is applicable to all airplanes.
6. Revision Filing Instructions
A. Regular Revision
(1) Pages to be removed or inserted in the maintenance manual are determined by the effectivity page
(page A located at the front of this manual). Pages are listed in sequence by the two-element
number. The first number(s), which represent the manual section number, are followed by a dash and
then the page number for that section. When two pages display the same two-element number, the
page with the most recent Date of Page Issue must be inserted in the service manual. The date
column on the effectivity page must verify the active page.
B. Temporary Revision
(1) File temporary revisions in the applicable section in accordance with filing instructions appearing on
the first page of the temporary revision.
(2) The rescission of a temporary revision is accomplished by incorporation into the maintenance manual
or by a superseding temporary revision.
Change 2
iv © Cessna Aircraft Company Jan 5/2004

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
7. IDENTIFYING REVISED MATERIAL.
A. Additions or revisions to text in an existing section will be identified by a revision bar in the outside margin
of the page and adjacent to the change.
B. When technical changes cause unchanged text to appear on a different page(s), a revision bar will be
placed in the outside margin adjacent to the page number, providing no other revision bar appears on the
page. These pages will display the current revision date in the inside margin opposite of the page number.
C. When extensive technical changes are made to text in an existing section that requires extensive revision,
revision bars will appear the full length of text.
D. Revised and new illustrations. either a revision bar along the side of the page or a hand indicator directing
attention to the area will indicate new or revised information.
E. Changes to wiring diagrams are indicated by shaded areas.
8. Warnings, Cautions and Notes
A. Throughout the text in this manual, warnings, cautions and notes pertaining to the procedures being
accomplished are utilized. These adjuncts to the text are used to highlight or emphasize important points.
Warnings and Cautions precede the text they pertain to, and Notes follow the text they pertain to.
WARNING: Calls attention to use of materials, processes, methods, procedures, or limits
which must be followed precisely to avoid injury or death to personnel.
CAUTION: Calls attention to methods and procedures which must be followed to avoid damage to
the airplane or equipment.
NOTE: Calls attention to methods that will make the job easier.
9. Propeller Aircraft Customer Care Supplies and Publications Catalog
A. A Cessna Propeller Aircraft Customer Care Supplies and Publications Catalog is available from a Cessna
Service Station or directly from Cessna Aircraft Company. The address is:
Cessna Aircraft Company
Department 751C
P.O. Box 7706
Wichita, Kansas 67277-7706
This catalog lists all publications and Customer Care Supplies available from Cessna for prior year models
as well as new products. To maintain this catalog in a current status, it is revised yearly and issued in
paper and aerofiche form.
10. Customer Comments on Manuals
A. Cessna Aircraft Company has endeavored to furnish you with an accurate, useful and up-to-date manual.
This manual can be improved with your help. Please use the return card that is provided with your manual
to report any errors, discrepancies, and omissions in this manual as well as any general comments you
wish to make.
Change 2
Jan 5/2004 © Cessna Aircraft Company v

CESSNA AIRCRAFT COMPANY
MODEL 337
SERVICE MANUAL
THIS PAGE INTENTIONALLY LEFT BLANK
© Cessna Aircraft Company
Change 2
Jan 5/2004 vi

SECTION 1
GENERAL DESCRIPTION
TABLE OF CONTENTS Page
GENERAL DESCRIPTION ......... 1-1
Model 337-Series ........... 1-1
Description ............. 1-1
1-1. GENERAL DESCRIPTION.
1-2. MODEL 337-SERIES.
1-3. DESCRIPTION. Cessna Model 337-Series air-
craft, described in this manual, are twin-engine,
high-wing monoplanes of all-metal, semimonocoque
construction. The aircraft employs a fully-retract-
able tricycle landing gear with spring-steel main
gear struts. The steerable nose gear is an air/oil
filled oleo strut. Thru 1971, the landing gear is hy-
draulically-actuated. Beginning with 1972 models,
the landing gear is electrically-actuated. The wing
flaps are electrically actuated, and flight adjustable
trim is provided for the rudder and elevator systems.
Four-place seating is standard, but provisions are
made for the addition of optional seats. The engines
are placed in tandem on the fuselage centerline and
the empennage is mounted on twin tail booms. The
aircraft is powered by two six-cylinder, horizontally-
opposed, air-cooled, fuel-injected Continental en-
gines. Each engine turns an all-metal, constant-
Aircraft Specifications .. . ..... 1-1
Stations . . . . . . . . . . . . . . 1-1
Torque Values . . .. . . . . . . . 1-1
speed, full-feathering propeller. In addition, the
Model T337-Series aircraft engines are turbocharged.
1-4. AIRCRAFT SPECIFICATIONS. Leading par-
ticulars of these aircraft, with dimensions based on
gross weight, are listed in figure 1-1. If these
dimensions are to be used for constructing a hangar
or computing clearances, remember that such factors
as tire pressures, tire sizes and load distribution
may result in some dimensions that are considerably
different from those listed.
1-5. STATIONS. A station diagram is included in
figure 1-2 to assist in locating equipment when a
written description is inadequate or impractical.
1-6. TORQUE VALUES. A chart of recommended
nut torques is provided in figure 1-3. These values
are recommended for all installation procedures
contained in this manual, except where other values
are stipulated. They are not to be used for checking
tightness of installed parts during service.
1-1
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Description
The Cessna 337 T 337 FT337 F337 service manual with part number d2500-2-13 covers the years 1965 to 1973. It consists of 802 pages that are bookmarked and indexed for easy navigation.
This comprehensive service manual is designed for the MODEL 337, T337, F337, and FT337 SUPER SKYMASTER SERIES. It is a valuable resource for both professional mechanics and DIY enthusiasts involved in the maintenance and repair of these aircraft models.