Mercury 45 Jet 50-55 - MID-Section

5B-0 - MID-SECTION 90-817643R1 DECEMBER 1996
Table of Contents
Page
Power Trim General Information 5B-1. . . . . . . . . . . .
Description 5B-1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Trimming Characteristics 5B-1. . . . . . . . . . . . . . .
Trimming Outboard “Up” (“Out”) 5B-1. . . . . . .
Trimming OUtboard “Down” (“In”) 5B-1. . . . .
Trailering Outboard 5B-2. . . . . . . . . . . . . . . . . . . .
Tilting Outboard Up and Down Manually 5B-2. .
Trim “In” Angle Adjustment 5B-2. . . . . . . . . . . . . .
Power Trim System Components 5B-3. . . . . . . . . . .
Torque Specifications 5B-3. . . . . . . . . . . . . . . . . .
Quicksilver Lubricants and Service Aids 5B-3. .
Power Trim Flow Diagrams Design 1 5B-4. . . . . . .
Determine if Problem is Electrical or
Hydraulic 5B-11. . . . . . . . . . . . . . . . . . . . . . . . . .
Trouble Chart 5B-11. . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic System Troubleshooting 5B-12. . . . . .
Preliminary Checks 5B-12. . . . . . . . . . . . . . . . . . .
Leak Down Check – Pump and Manifold
Assembly 5B-12. . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Down Check – Pilot Valve
Assembly 5B-13. . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Down Check – Manual Release
Valve 5B-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leakage Past Ball and Seat – Piston
Assembly 5B-13. . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Flow Diagram 5B-14. . . . . . . . .
Troubleshooting Flow Diagram 5B-15. . . . . . . . .
Electrical System Troubleshooting 5B-16. . . . . . . . .
COMMANDER 2000 Side Mount Remote
Control (Power Trim/Tilt Electric Start with
Warning Horn) Wiring Diagram 5B-16. . . . . . .
Power Trim System Wiring Diagram 5B-17. . . . .
Troubleshooting the “Down” Circuit*
(When “Up” Circuit is OK) 5B-18. . . . . . . . . . . .
Troubleshooting the “Up” Circuit*
(When “Down” Circuit Is OK) 5B-19. . . . . . . . .
Troubleshooting the “Down” and “Up” Circuits
(All Circuits Inoperative)* 5B-20. . . . . . . . . . . .
Page
Power Trim System Removal 5B-21. . . . . . . . . . . . .
Power Trim System Disassembly 5B-22. . . . . . . . . .
Trim Rod Removal 5B-22. . . . . . . . . . . . . . . . . . . .
Trim Rod Disassembly 5B-23. . . . . . . . . . . . . . . .
Trim “Motor” Removal 5B-25. . . . . . . . . . . . . . . . .
Trim “Motor” Disassembly 5B-25. . . . . . . . . . . . . .
Reservoir Assembly Removal 5B-26. . . . . . . . . .
Oil Pump Removal 5B-27. . . . . . . . . . . . . . . . . . . .
Manifold Removal 5B-27. . . . . . . . . . . . . . . . . . . .
Cleaning and Inspection of Trim Rod
Components 5B-28. . . . . . . . . . . . . . . . . . . . . . . . . .
Motor and Electrical Tests/Repair 5B-29. . . . . . . . . .
Trim Pump Motor Test 5B-29. . . . . . . . . . . . . . . . .
Thermal Overload Switch Test 5B-29. . . . . . . . . .
Motor Assembled 5B-29. . . . . . . . . . . . . . . . . .
Motor Disassembled 5B-29. . . . . . . . . . . . . . . .
Armature Tests 5B-30. . . . . . . . . . . . . . . . . . . . . . .
Test for Shorts 5B-30. . . . . . . . . . . . . . . . . . . . .
Test for Ground 5B-30. . . . . . . . . . . . . . . . . . . .
Checking and Cleaning Commutator 5B-30.
Power Trim System Reassembly 5B-30. . . . . . . . . .
Manifold Installation 5B-30. . . . . . . . . . . . . . . . . . .
Oil Pump Installation 5B-31. . . . . . . . . . . . . . . . . .
Trim Motor Reassembly 5B-32. . . . . . . . . . . . . . .
Reservoir Installation 5B-33. . . . . . . . . . . . . . . . . .
Trim Rod Re-assembly 5B-35. . . . . . . . . . . . . . . .
Trim Rod Installation 5B-36. . . . . . . . . . . . . . . . . .
Bleeding Power Trim Unit 5B-37. . . . . . . . . . . . . . . .
Power Trim Unit Installation 5B-37. . . . . . . . . . . .