Mercury 40 Service Manual

5
C
POWER TRIM
90-828631R3 MARCH 1999 Page 5C-1
MID-SECTION
Section 5C - Power Trim
1999 and Later Non-Bigfoot/All Big-Foot Model Years
Table of Contents
Special Tools 5C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quicksilver Lubricants and Service Aids 5C-2. . . . . .
Power Trim Components 5C-4. . . . . . . . . . . . . . . . . . .
Theory Of Operation 5C-6. . . . . . . . . . . . . . . . . . . . . . .
Adjustments 5C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trimming Characteristics 5C-6. . . . . . . . . . . . . . . .
Trailering Outboard 5C-7. . . . . . . . . . . . . . . . . . . . .
Tilting Outboard Up and Down Manually 5C-7. . .
Power Trim Flow Diagrams 5C-8. . . . . . . . . . . . . . . . .
Trim Up Circuit 5C-8. . . . . . . . . . . . . . . . . . . . . . . . .
Tilt Circuit 5C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Tilt 5C-12. . . . . . . . . . . . . . . . . . . . . . . . .
Down Circuit 5C-14. . . . . . . . . . . . . . . . . . . . . . . . . .
Shock Function Up 5C-16. . . . . . . . . . . . . . . . . . . .
Shock Function Return 5C-18. . . . . . . . . . . . . . . . .
Manual Release 5C-20. . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5C-22. . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Checks 5C-22. . . . . . . . . . . . . . . . . . . .
Hydraulic System Troubleshooting
Flow Chart 5C-23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting the Power Trim
Electrical System 5C-27. . . . . . . . . . . . . . . . . . . . . .
Power Trim System Removal 5C-29. . . . . . . . . . . . . .
Power Trim Disassembly 5C-30. . . . . . . . . . . . . . . . . .
Trim Motor Removal 5C-31. . . . . . . . . . . . . . . . . . .
Pump and Components Removal 5C-31. . . . . . . .
Manifold Removal 5C-32. . . . . . . . . . . . . . . . . . . . .
Shock Rod Removal 5C-33. . . . . . . . . . . . . . . . . . .
Shock Rod Disassembly 5C-33. . . . . . . . . . . . . . . . . .
Memory Piston Removal 5C-36. . . . . . . . . . . . . . .
Cleaning/Inspection/Repair 5C-37. . . . . . . . . . . . . . . .
Trim Motor Electrical Tests 5C-37. . . . . . . . . . . . . .
Reassembly 5C-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O-ring and Seal Placement 5C-38. . . . . . . . . . . . .
O-ring Sizes 5C-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O-ring Description and Sizes 5C-40. . . . . . . . . . . . . . .
Power Trim Reassembly 5C-41. . . . . . . . . . . . . . . . . .
Shock Rod Reassembly 5C-41. . . . . . . . . . . . . . . .
Shock Rod Installation 5C-43. . . . . . . . . . . . . . . . .
Trim Limit Assembly Installation 5C-44. . . . . . . . .
Manual Release Valve Installation 5C-44. . . . . . .
Manifold Installation 5C-45. . . . . . . . . . . . . . . . . . .
Oil Pump Installation 5C-46. . . . . . . . . . . . . . . . . . .
Pressure Operated Assembly Installation 5C-46.
Reservoir/Motor Installation 5C-47. . . . . . . . . . . . .
Bleeding Power Trim Unit 5C-48. . . . . . . . . . . . . .
Installation of Power Trim System 5C-48. . . . . . . . . .

Mercury 40 Specifications

General

Brand	Mercury
Model	40
Category	Outboard Motor
Language	English