Mercury 20 EFI FourStroke

Midsection
Section 5B - Power Tilt
Table of Contents
Power Tilt Specifications....................................................5B-2
General Troubleshooting
................................................... 5B-2
Power Tilt ‑ General Information........................................ 5B-2
Power Tilt Components......................................................5B-4
Theory of Operation........................................................... 5B-6
Power Tilt Hydraulic Diagram..................................... 5B-6
Operation.................................................................... 5B-6
Power Tilt Features and Operation.................................... 5B-7
Power Tilt....................................................................5B-7
Manual Tilt Release.................................................... 5B-7
Tilt‑in Stop Adjustment................................................5B-7
Check Fluid and Purge the Power Tilt System.................. 5B-8
Check Fluid.................................................................5B-8
Purging the Power Tilt System................................... 5B-9
Cowl‑Mounted Tilt Switch.................................................. 5B-9
Removal......................................................................5B-9
Installation...................................................................5B-9
Troubleshooting the Power Tilt System........................... 5B-10
Preliminary Troubleshooting Steps...........................5B-10
Power Tilt Leakage Test Procedure......................... 5B-10
Hydraulic System Troubleshooting........................... 5B-11
Tilt Electrical System ‑ General Troubleshooting......5B-11
Power Tilt Relay Test................................................5B-12
Wire Color Code Abbreviations................................ 5B-13
Tilt System Wiring Diagrams.................................... 5B-13
Tilt System Troubleshooting Charts..........................5B-15
Power Tilt Removal..........................................................5B-18
Manual Release Valve Removal and Repair................... 5B-19
Power Tilt Motor...............................................................5B-20
Power Tilt Motor Removal........................................ 5B-20
Power Tilt Motor Disassembly, Inspection, and Repair
.............................................................................. 5B-21
Power Tilt Motor Reassembly...................................5B-23
Power Tilt Pump...............................................................5B-24
Power Tilt Pump Disassembly.................................. 5B-24
Power Tilt Pump Reassembly...................................5B-26
Power Tilt Installation.......................................................5B-29
Power Tilt
90-8M0125265 eng NOVEMBER 2017 © 2018 Mercury Marine Page 5B-1
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