2. Check electrical connections and leads for damage.
3. Remove and inspect the propeller. If badly nicked, bent, or cracked, contact your Mercury Diesel authorized repair facility.
4. Repair nicks and corrosion damage on power package exterior finish. Contact your Mercury Diesel authorized repair
facility.
Maintenance Schedule (Inboard Models)
Routine Maintenance
Each Day Start
• Check the engine oil level.
• Check the engine coolant level.
• Check the power‑assisted steering fluid level (when applicable).
• Check the lubricant level in the transmission.
Each Day End
• If operating in saltwater, brackish water, or polluted water, flush the seawater section of the cooling system after each use.
• Drain any water from the fuel filter after each use if operating in freezing temperatures.
Weekly
• Drain any water from the fuel filter.
• Check the seawater inlets for debris or marine growth.
• Check and clean the seawater strainer.
• Inspect the anodes and replace if they are 50% eroded.
• Inspect the air filter.
Every Two Months
• Check the battery connections and fluid level.
• Treat the engine surfaces with Corrosion Guard if operating in saltwater, brackish water, or polluted waters.
Tube Ref No.
Description Where Used Part No.
120
Corrosion Guard Engine surfaces 92-802878 55
• Inspect the air filter every two months or every 20 hours, whichever occurs first.
• Ensure that the gauges and the wiring connections are secure. Clean the gauges every two months or every 50 hours,
whichever occurs first. If operating in saltwater, the interval is reduced to every 25 hours or 30 days, whichever occurs first.
Scheduled Maintenance
Annually
Touch up the power package with paint and spray with Corrosion Guard.
Tube Ref No.
Description Where Used Part No.
120
Corrosion Guard Engine surfaces 92-802878 55
Every 100 Hours or Annually (Whichever Occurs First)
• Change the transmission lube.
• Check the steering system and the remote control for loose, missing, or damaged parts. Lubricate the cables and linkages.
• Inspect the exhaust tube, and check the clamps for tightness.
• Check the continuity circuit for loose or damaged connections. If equipped with MerCathode, test the unit output.
• Check the electrical system for loose, damaged, or corroded fasteners.
Every 200 Hours or Annually (Whichever Occurs First)
• Visual inspection for leaks.
• Change the engine oil and filter.
• Replace the fuel water separator filter.
• Check the power steering fluid level (when applicable).
Section 4 - Maintenance
Page 34 90-8M0133568 eng JUNE 2017
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