289
TRIM AND TILT
ROUTINE INSPECTIONS
14
ROUTINE INSPECTIONS
General
Check for external signs of fluid leakage. Correct
causes as necessary.
Check the battery and make sure it is in good
operating condition.
Reservoir Fluid
Check reservoir fluid level every three years or
every 300 operating hours. System capacity is
approximately 21 fl. oz. (620 ml).
IMPORTANT: Use only Evinrude/Johnson Bio-
degradable TNT Fluid to fill the hydraulic system.
Refer to Trim and Tilt on p. 73 for filling proce-
dure.
Manual Release Valve
Check the manual release valve with a torque
wrench.
IMPORTANT: The valve must be tightened to a
torque of 45 to 55 in. lbs. (5 to 6 N·m).
Stern Brackets
Inspect the stern brackets for binding with the
swivel bracket in the thrust rod area. Retighten the
tilt tube nuts as follows:
• Tighten the tilt tube nuts to a torque of 45 to 50
ft. lbs. (61 to 68 N·m).
TROUBLESHOOTING
Use the following guidelines to check a single pis-
ton trim/tilt unit that is not working correctly.
Cylinder Leakdown:
• Manual release valve seals
• External leaks
No reverse lock:
• External leaks
No operation, motor runs:
• Manual release valve open
• Fluid level low
• Pump coupler
• Hydraulic pump
No tilt down:
• Manual release valve
• Fluid level
Slow performance:
• Manual release valve
• Fluid level low
• Mechanical binding
• Electric motor
• Hydraulic pump
Unit locked in tilt up:
• Mechanical binding
• Hydraulic pump
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