Mercury 40 FourStroke User Manual

5
B
POWER TRIM
90-857046R1 NOVEMBER 2001 Page 5B-1
MID-SECTION
Section 5B - Power Trim
Table of Contents
Special Tools 5B-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Trim 5B-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory Of Operation 5B-6. . . . . . . . . . . . . . . . . . . . .
Adjustments 5B-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trimming Characteristics 5B-6. . . . . . . . . . . . . .
Trailering Outboard 5B-7. . . . . . . . . . . . . . . . . . .
Tilting Outboard Up and Down Manually 5B-7.
Power Trim Flow Diagrams 5B-8. . . . . . . . . . . . . . .
Trim Up Circuit 5B-8. . . . . . . . . . . . . . . . . . . . . . .
Tilt Circuit 5B-10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Tilt 5B-12. . . . . . . . . . . . . . . . . . . . . . . .
Down Circuit 5B-14. . . . . . . . . . . . . . . . . . . . . . . . .
Shock Function Up 5B-16. . . . . . . . . . . . . . . . . . .
Shock Function Return 5B-18. . . . . . . . . . . . . . . .
Manual Release 5B-20. . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5B-22. . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Checks 5B-22. . . . . . . . . . . . . . . . . . .
Hydraulic System Troubleshooting
Flow Chart 5B-23. . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting the Power Trim
Electrical System 5B-27. . . . . . . . . . . . . . . . . . . . .
Power Trim System Removal 5B-29. . . . . . . . . . . . .
Power Trim Disassembly 5B-30. . . . . . . . . . . . . . . . .
Trim Motor Removal 5B-31. . . . . . . . . . . . . . . . . .
Pump and Components Removal 5B-31. . . . . . .
Manifold Removal 5B-32. . . . . . . . . . . . . . . . . . . .
Shock Rod Removal 5B-33. . . . . . . . . . . . . . . . . .
Shock Rod Disassembly 5B-33. . . . . . . . . . . . . . . . .
Memory Piston Removal 5B-36. . . . . . . . . . . . . .
Cleaning/Inspection/Repair 5B-37. . . . . . . . . . . . . . .
Trim Motor Electrical Tests 5B-37. . . . . . . . . . . . .
Reassembly 5B-38. . . . . . . . . . . . . . . . . . . . . . . . . . . .
O-Ring and Seal Placement 5B-38. . . . . . . . . . .
O-ring Sizes 5B-39. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Trim Reassembly 5B-41. . . . . . . . . . . . . . . . .
Shock Rod Reassembly 5B-41. . . . . . . . . . . . . . .
Shock Rod Installation 5B-43. . . . . . . . . . . . . . . .
Trim Limit Assembly Installation 5B-44. . . . . . . .
Manual Release Valve Installation 5B-44. . . . . .
Manifold Installation 5B-45. . . . . . . . . . . . . . . . . .
Oil Pump Installation 5B-46. . . . . . . . . . . . . . . . . .
Pressure Operated Assembly Installation 5B-47
Reservoir/Motor Installation 5B-48. . . . . . . . . . . .
Bleeding Power Trim Unit 5B-49. . . . . . . . . . . . .
Installation of Power Trim System 5B-49. . . . . . . . .

Mercury 40 FourStroke Specifications

General

Brand	Mercury
Model	40 FourStroke
Category	Outboard Motor
Language	English