Yanmar Marine Stern Drive Zt350 Zt370 Full Service Manual
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Yanmar Marine Stern Drive Zt350 Zt370 Full Service Manual
LANGUAGE:ENGLISH
PAGES:650+
DOWNLOADABLE:YES
FILE TYPE:PDF
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DESCRIPTION:
Yanmar Marine Stern Drive Zt350 Zt370 Full Service Manual
This manual giveS Specific instructions for the proper repair of Yanmar ZT350/370 series marine Stern drive units. Please follow the procedures carefully to ensure quality service. Yanmar recommends that you read this Service Manual completely before starting repairs. Along with standard tools, Yanmar recommends the use of Special tools necessary to perform repairs correctly. Yanmar products are continuously undergoing improvement. This Service Manual has been checked carefully in order to avoid errors. However, Yanmar is not liable for any misrepresentations, errors of description or omissions. Contact the regional headquarters for any questions you have regarding this Service Manual.
TABLE OF CONTENTS:
Yanmar Marine Stern Drive Zt350 Zt370 Full Service Manual
Cover..................................................................... 1 Table of Contents......................................................... 3 Introduction.............................................................. 5 Revision History...................................................... 6 Revision Control Table............................................ 6 Safety.................................................................... 7 Safety Precautions.................................................... 8 General Service Information............................................... 13 Responsibilities...................................................... 15 Owner/Operator Responsibilities................................... 15 Dealer/Distributor Responsibilities............................... 15 Specifications........................................................ 16 Identification........................................................ 17 Transom Assembly.................................................. 17 Stern Drive Assembly.............................................. 18 Tightening Torques for Standard Bolts and Nuts........................ 19 Tightening Fasteners.............................................. 19 General Tightening Torque......................................... 19 Special Tightening Torques........................................ 19 Hose Clamps....................................................... 24 Lubricants, Sealers and Adhesives..................................... 25 Special Service Tools................................................. 26 Abbreviations and Symbols............................................. 37 Abbreviations..................................................... 37 Symbols........................................................... 37 Unit Conversions...................................................... 38 Unit Prefixes..................................................... 38 Units of Length................................................... 38 Units of Volume................................................... 38 Units of Mass..................................................... 38 Units of Force.................................................... 38 Units of Torque................................................... 38 Units of Pressure................................................. 38 Units of Power.................................................... 38 Units of Temperature.............................................. 38 Maintenance............................................................... 39 Safety Precautions.................................................... 41 Introduction.......................................................... 41 Checking, Filling and Changing Stern Drive Oil........................ 42 Checking Stern Drive Oil Reservoir Level.......................... 42 Checking Stern Drive Oil Level.................................... 43 Filling Stern Drive Oil Reservoir................................. 44 Changing Stern Drive Oil.......................................... 44 Checking and Filling Power Trim Pump Fluid............................ 48 Checking Power Trim Pump Fluid.................................... 48 Filling Power Trim Pump Fluid..................................... 48 Periodic Maintenance.................................................. 50 The Importance of Periodic Maintenance............................ 50 Performing Periodic Maintenance................................... 50 The Importance of Daily Checks.................................... 50 Yanmar Replacement Parts.......................................... 50 Tools Required.................................................... 50 Periodic Maintenance Table............................................ 51 General Inspection.................................................... 52 Periodic Maintenance Procedures....................................... 52 Weekly............................................................ 52 After Initial 50 Hours of Operation............................... 53 Every 50 Hours of Operation....................................... 53 Every 100 Hours of Operation...................................... 54 Every 250 Hours of Operation...................................... 58 Every Year........................................................ 59 Cold Weather (Freezing Temperature), Seasonal and Extended Storage.... 60 Stern Drive Lay-Up................................................ 60 Stern Drive Recommissioning....................................... 60 Stern Drive............................................................... 61 Safety Precautions.................................................... 63 Introduction.......................................................... 63 Component Identification.............................................. 63 Stern Drive Removal from Transom Assembly............................. 64 Stern Drive Installation to Transom Assembly.......................... 69 Stern Drive Driveshaft Alignment...................................... 75 Driveshaft Housing and Gear Housing Disassembly....................... 77 Driveshaft Housing and Gear Housing Assembly.......................... 78 Driveshaft Housing........................................................ 79 Safety Precautions.................................................... 81 Introduction.......................................................... 81 General Views......................................................... 82 Driveshaft Housing Part Diagrams...................................... 84 Driveshaft Housing and Drive Gear................................. 84 Driveshaft Housing Disassembly........................................ 92 Upper Gear “B” CMP.................................................... 96 Disassembly....................................................... 96 Case Plate and Shifter................................................105 Disassembly - Mechanical Shifter..................................105 Clutch Shaft Set Disassembly and Inspection...........................110 Driveshaft Housing Assembly...........................................113 Upper Gear Shim Adjustment............................................117 Determine T1 Shim Thickness - Gear Adjustment “B” Position........120 Determine T2 Shim Thickness - Gear Adjustment “A-1” Position......120 Determine T3 Shim Thickness - Gear Adjustment “A-2” Position......121 Determine T4 Shim Thickness - Bearing Clearance Adjustment........121 Setting Gear Backlash.............................................123 Gear Housing..............................................................125 Safety Precautions....................................................127 Introduction..........................................................127 General Views.........................................................128 Gear Housing Part Diagrams............................................130 Gear Housing Assembly.............................................130 Disassembly and Inspection............................................133 Gear Housing Assembly.................................................145 Driveshaft CMP Assembly...........................................162 Transom Assembly..........................................................177 Safety Precautions....................................................179 Introduction..........................................................179 General Views.........................................................180 Transom Assembly Part Diagrams........................................182 Gimbal Housing....................................................182 Gimbal Housing Disassembly............................................192 Gimbal Housing Assembly...............................................213 Tilt-Up Limit Spacer..................................................238 Speedometer Connection................................................239 Shift Cable...............................................................241 Safety Precautions....................................................243 Introduction..........................................................243 Control Cables........................................................244 Mechanical Shift Cable Parts Diagram..............................244 Control Cable Travel..............................................247 Verify Propeller Rotation with Mechanical Shift System............247 Shift Cable Installation and Adjustment...............................248 Shift Cable Installation for Electric Shift Type..................248 Shift Cable Installation for Mechanical Shift Type................249 Setting the Cable Length..........................................249 Installing the Drive Unit Shift Cable.............................249 Adjusting the Shift Control Cable.................................250 Troubleshooting Shift Problems....................................252 Steering..................................................................253 Safety Precautions....................................................255 Introduction..........................................................255 Power Steering Unit Parts Diagram.....................................256 Steering Cable Specifications.........................................257 Installation of Steering Cable........................................259 Connecting Steering Cables............................................260 Power Steering Unit Installation......................................261 Power Steering Hose Installation......................................263 Steering Tie Bar Considerations.......................................264 Internal Tie Bar Only.............................................264 Internal and External Tie Bar.....................................264 External Power Steering with an External Tie Bar..................264 Power Trim System.........................................................265 Safety Precautions....................................................267 Introduction..........................................................267 Power Trim Pump Parts Diagram.........................................268 Power Trim Cylinders Parts Diagram....................................270 Power Trim System.....................................................272 Power Trim Pump Fluid.................................................272 Power Trim Cylinders..................................................272 Power Trim Troubleshooting............................................273 Power Trim Pump Installation..........................................274 Trim Position Sender Connection.......................................275 Trim-In Limiter.......................................................276 Propellers................................................................277 Safety Precautions....................................................279 Introduction..........................................................279 Propeller Selection...................................................279 Propeller and Propeller Accessory Parts Diagrams..................280 Propeller Installation................................................282 Removing Propellers...................................................286 Corrosion Protection......................................................287 Safety Precautions....................................................289 Introduction..........................................................289 Corrosion Control Parts Diagram.......................................290 Galvanic Corrosion....................................................291 Corrosion Control.....................................................291 Shore Power...........................................................291 Underwater Drive Coating..............................................291 Additional Protection.................................................292 Gear Housing Anodic Plates............................................293 Ventilation Plate Anode...............................................293 Trim Cylinder Anodes..................................................293 Propeller Shaft Anode.................................................293 Yanmar Cathodic Protection System.....................................294 Corrosion Troubleshooting.............................................295 Troubleshootin g and Testing..............................................297 Safety Precautions....................................................299 Introduction..........................................................299 Stern Drive Unit Troubleshooting......................................300 Performance Troubleshooting...........................................304 Power Steering Troubleshooting........................................305 Power Trim System Troubleshooting.....................................306 Stern Drive Testing...................................................307 Test Preparations.................................................307 Engine Operation Tests............................................307 Out-of-Water Testing..............................................307 In-Water Testing..................................................308 Wide Open Throttle Test...........................................308 Drive Unit Operational Tests......................................308
PLEASE NOTE:
- This is the SAME exact manual used by your dealers to fix your vehicle.
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