Yanmar Saildrive Unit
- SD20
- SD30
- SD31
Serial numbers:
- For the SD20: E02710 and up
- For the SD30: E13702 and up
- For the SD31: E13702 and up
Yanmar Saildrive Unit SD20, SD30, SD31 service manual
Models covered in this manual:
File specifications
File type: PDF
Language: English
Printable: Yes
Estimated download time: 0.38 Minutes
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Product Information
Table of Contents
Sail Drive Unit SD20, SD30 & SD31
Chapter 1 General
- Specifications 1-1
- Selected View & Names of Parts 1-2
- Sectional View & Name of Parts 1-3
- Procedure for Rigging Engine 1-4
- Procedure for Replacing Propellers 1-5
- General Instructions 1-6
- Cautionary and Prohibitory Tools 1-7
- General Information 1-8
- Special Tools 1-9
- Tightening Torques 1-10
- How to Read Circuits 1-11
- Ad On (Disassembly, Inspection and Reassembly) 1-12
Chapter 2 Disassembly
- Disassembling the Upper Gear Case 2-1
- Disassembling the Lower Gear Case 2-2
Chapter 3 Reassembly
- Reassembling the Upper Gear Case Assembly 3-1
- Reassembling the Lower Gear Case Assembly 3-2
- Installing the Propeller Shaft 3-3
- Fitting the Folding Propeller 3-4
Chapter 4 Gear Adjustment (Gear Backlash)
- Adjusting the Upper Gear Backlash 4-1
- Adjusting the Lower Gear Backlash 4-2
- Adjusting the Drive Gear Backlash 4-3
- Adjusting the Pinion Gear Backlash 4-4
- Adjusting the Idler Gear Backlash 4-5
Chapter 5 Bearing & Oil Seal Replacement
- Replacing the Upper Gear & Pinion Bearing 5-1
- Replacing the Lower Gear & Pinion Bearing 5-2
- Replacing the Propeller Shaft Oil Seal 5-3
- Replacing the Lower Gear Oil Seal 5-4
- Replacing the Idler Gear Oil Seal 5-5
Chapter 6 Tightening Torques for Nuts and Bolts
- Specified Tightening Torques 6-1
Chapter 7 Electrical Wiring
- Reading the Electrical Wiring Diagrams 7-1
- Electrical Wiring Diagram 7-2
Chapter 8 Inspecting the Long-Reach Unit
- General Inspection 8-1
- Modification Method 8-2
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