Mercury Racing 500R Operation And Maintenance Manual page 97

AFTER 10 HOURS OF USE
• Change the engine oil and replace the oil filter. Refer to Changing
Engine Oil and Filter.
•
Drain and replace the gearcase lubricant. Refer to Gearcase
Lubrication.
• Remove the in‑line fuel filter from the fuel inlet hose on the outboard.
Refer to Fuel System.
EVERY 25 HOURS OF USE (FOR EXTREME DUTY APPLICATIONS)
For extreme duty applications such as high‑speed catamarans or surface
piercing applications, perform the following:
•
Change the engine oil and replace the oil filter. Refer to Changing
Engine Oil and Filter.
• Drain and replace the gearcase lubricant. Refer to Gearcase
Lubrication.
EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER
OCCURS FIRST
• Change the engine oil and replace the oil filter. The oil should be changed
more often when the engine is operated under adverse conditions, such
as extended trolling. Refer to Changing Engine Oil and Filter.
• Check the boat‑mounted water‑separating low‑pressure fuel filter for
water or contaminants. Drain the water or replace the filter if required.
Refer to Fuel System.
•
Remove the propeller and lubricate the propeller shaft. Refer to Propeller
Replacement.
• Inspect the thermostat visually for corrosion or a broken spring. Ensure
that the thermostat closes completely at room temperature—dealer
service.
• Check the outboard mounting fasteners that fasten the outboard to
the boat transom. Tighten the fasteners to the specified torque—dealer
service.
Description
Outboard mounting locknuts and
bolts ‑ standard boat transom
Outboard mounting locknuts and
bolts ‑ metal lift plates and setback
brackets
• Check the corrosion control anodes. Check more frequently when used in
saltwater. Refer to Corrosion Control Anode.
•
Drain and replace the gearcase lubricant. Refer to Gearcase
Lubrication.
• Replace the supercharger belt—dealer service.
eng
MAINTENANCE
87
Nm lb‑in.
75 –
122 –
lb‑ft
55.3
90