John Deere 915, 925, 935 Mower Conditioner Diagnostic Technical Manual TM1727 PDF

915, 925 and 935 Rotary Mower Conditioners Diagnostic and Repair

TECHNICAL MANUAL Mower Conditioners models 915, 925, 935 TM1727 01 SEP 00 (ENGLISH)

John Deere Agriculture Pinted by Belgreen

tm1727-TECHNICAL MANUAL

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Table of contents FOREWORD JOHN DEERE DEALERS SERVICE TECHNICIAN RESPONSE Section 10 - GENERAL Group 05 - Safety Group 10 - Specifications Group 15 - General Information Group 20 - Lubricants Section 20 - POWER TRAIN Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Driveline Repair Group 20 - Main Drive Gear Case-915 Group 21 - Main Drive Gear Case-925/35 Group 25 - Slip Clutch Group 30 - Belt Drive Group 35 - Cutterbar Drive Gear Case-915 Group 36 - Cutterbar Drive Gear Case-925/35 (Early Machines) Group 37 - Cutterbar Drive Gear Case-925/35 (Later Machines) Section 30 - CUTTING COMPONENTS Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Cutterbar Assembly Group 20 - Disks and Knives Section 40 - PLATFORM-915 Group 05 - General Information Group 10 - Platform Repair Section 41 - PLATFORM-925/35 Group 05 - General Information Group 10 - Platform Repair Section 50 - CONDITIONER Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Roll Bearings and Arms Group 20 - Rolls Group 25 - Impeller Section 60 - CARRIER FRAME AND TONGUE-915 Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Carrier Frame Group 20 - Tongue Section 61 - CARRIER FRAME AND TONGUE-925/35 Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Carrier Frame Group 20 - Tongue Section 70 - HYDRAULICS-915 Group 05 - General Information Group 10 - Diagnosing Malfunctions Group 15 - Lift Cylinder Section 71 - HYDRAULICS-925/35 Group 05 - General Information <- Go to Global Table of contents

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Group 10 - Diagnosing Malfunctions Group 15 - Lift Cylinders Group 20 - Tongue Positioner Cylinder (Optional) Group 25 - Tilt Cylinder (Top Link) (Optional) Section 80 - MISCELLANEOUS Group 05 - Wheels and Wheel Support Assembly Group 10 - Electrical Repair Section 99 - DEALER FABRICATED TOOLS Group 05 - Dealer Fabricated Tools

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Foreword This manual is written for an experienced technician. Essential tools required in performing certain service work are identified in this manual and are recommended for use.

Live with safety: Read the safety messages in the introduction of this manual and the cautions presented throughout the text of the manual.

This is the safety-alert symbol. When you see this symbol on the machine or in this manual, be alert to the potential for personal injury.

The technical manual contains two types of information: diagnostics and repair. Diagnostic groups help you identify the majority of routine failures quickly. Repair groups tell how to repair the components.

Information is organized in groups for the various components requiring service instruction. At the beginning of each group are summary listings of all applicable essential tools, service equipment and tools, other materials needed to do the job, service parts kits, specifications, wear tolerances, and torque values.

Binders, binder labels, and tab sets can be ordered by John Deere dealers direct from the John Deere Distribution Service Center.

This manual is part of a total product support program.

FOS MANUALS-REFERENCE TECHNICAL MANUALS-MACHINE SERVICE COMPONENT MANUALS-COMPONENT SERVICE Fundamentals of Service (FOS) Manuals cover basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic type of failures and their causes. FOS Manuals are for training new personnel and for reference by experienced technicians.

Technical Manuals are concise guides for specific machines. Technical manuals are on-the-job guides containing only the vital information needed for diagnosis, analysis, testing, and repair.

Component Technical Manuals are concise service guides for specific components. Component technical manuals are written as stand-alone manuals covering multiple machine applications.

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John Deere Dealers IMPORTANT: Please remove this page and route through your service department. Your current TM is obsolete, discard TM1727 dated 28OCT98.

Listed below is a brief explanation of “WHAT” was changed or added: Complete manual has been updated/revised New gear case information added for 925/35 machines.

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GENERAL

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Service Technician Response We need your help to continually improve our technical publications. Please FAX or mail your comments, ideas and improvements on this comment sheet.

John Deere Ottumwa Works 928 East Vine Street Ottumwa, Iowa 52501-4352 Dept. 88 Attn: Product Communications Supervisor

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FAX NUMBER: 515-683-2290 TM1727-915, 925, and 935 Rotary Mower-Conditioner Technical Repair Manual Ideas, Comments, (Please state Page Number):

OVERALL, how would you rate the quality of "ALL " Installation Instructions provided to you? (Circle one) Poor 1

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Section 10 page 1

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Section 10 - GENERAL Table of contents Group 05 - Safety ..................................................................................................................................... 1 Recognize Safety Information ............................................................................................................... 1 Understand Signal Words ..................................................................................................................... 1 Follow Safety Instructions ..................................................................................................................... 1 Operate Mower-Conditioner Safely ....................................................................................................... 2 Keep Riders Off Machine ...................................................................................................................... 3 Handle Fluids Safely-Avoid Fires ........................................................................................................... 3 Prepare for Emergencies ...................................................................................................................... 3 Handle Chemical Products Safely ......................................................................................................... 4 Avoid High-Pressure Fluids ................................................................................................................... 4 Stay Clear of Rotating Drivelines .......................................................................................................... 5 Avoid Injury From Thrown Objects ........................................................................................................ 5 Use Safety Lights and Devices ............................................................................................................. 6 Use a Safety Chain ............................................................................................................................... 6 Tow Loads Safely .................................................................................................................................. 7 Support Machine Properly .................................................................................................................... 7 Wear Protective Clothing ...................................................................................................................... 9 Work in Clean Area ............................................................................................................................... 9 Service Machines Safely ..................................................................................................................... 10 Illuminate Work Area Safely ............................................................................................................... 10 Replace Safety Signs .......................................................................................................................... 10 Use Proper Lifting Equipment ............................................................................................................. 11 Remove Paint Before Welding or Heating ........................................................................................... 11 Avoid Heating Near Pressurized Fluid Lines ........................................................................................ 12 Service Tires Safely ............................................................................................................................ 12 Practice Safe Maintenance ................................................................................................................. 13 Use Proper Tools ................................................................................................................................. 13 Construct Dealer-Made Tools Safely ................................................................................................... 14 Dispose of Waste Properly .................................................................................................................. 14 Live With Safety ................................................................................................................................. 15 Group 10 - Specifications ..................................................................................................................... 16 Mower-Conditioner Specifications (Specifications and design subject to change without notice.)-915 ..................................................................................................................................................... 16 Mower-Conditioner Specifications (Specifications and design subject to change without notice.)-925 ..................................................................................................................................................... 17 Mower-Conditioner Specifications (Specifications and design subject to change without notice.)-935 ..................................................................................................................................................... 18 Metric Bolt and Cap Screw Torque Values .......................................................................................... 19 Unified Inch Bolt and Cap Screw Torque Values ................................................................................. 20 Service Recommendations For O-Ring Boss Fittings .......................................................................... 21 Service Recommendations For 37° Flare and 30° Cone Seat Connectors .......................................... 22 Group 15 - General Information ........................................................................................................... 23 Machine Description-915 .................................................................................................................... 23 Machine Description-925/35 ............................................................................................................... 23 Group 20 - Lubricants ............................................................................................................................ 25 Grease ................................................................................................................................................ 25 Cutterbar Oil ....................................................................................................................................... 26 Gear Case Oil ...................................................................................................................................... 27 Alternative and Synthetic Lubricants .................................................................................................. 27 Mixing of Lubricants ........................................................................................................................... 27 <- Go to Global Table of contents

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Lubricant Storage ............................................................................................................................... 27 Perform Lubrication and Maintenance ................................................................................................ 28

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Section 10 - GENERAL

Group 05: Safety

Group 05 - Safety Recognize Safety Information

Safety-alert symbol This is a safety-alert symbol. When you see this symbol on your machine or in this manual, be alert to the potential for personal injury.

Follow recommended precautions and safe operating practices.

Understand Signal Words

Signal Words A signal word-DANGER, WARNING, or CAUTION-is used with the safety-alert symbol. DANGER identifies the most serious hazards.

DANGER or WARNING safety signs are located near specific hazards. General precautions are listed on CAUTION safety signs.

CAUTION also calls attention to safety messages in this manual.

Follow Safety Instructions

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Section 10 page 1

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