First Service Inspection (Dealer 20-Hour Check) - Volvo Penta DPX 500 Instruction Book

First two hours
1. For the first five to ten minutes of operation, operate the engine at a fast idle (above 1500 RPM).
2. During the remaining first two hours of operation, accelerate to bring the boat onto plane quickly; bring the
throttle back to maintain a planing attitude.
During this period, vary the engine speed frequently by accelerating to approximately ¾ throttle for two to three
minutes, then back to minimum cruising speed.
3. After the engine has reached operating temperature, momentarily reduce engine speed, then increase engine
speed, to assist break-in of rings and bearings. Maintain plane to avoid excessive engine load.
For this initial two hour break-in, do not run the engine at any constant RPM for prolonged periods of time.
Next eight hours
1. During the next eight hours, continue to operate at approximately ¾ throttle or less (minimum cruising speed).
Occasionally reduce throttle to idle speed for a cooling period.
2. During this eight hours of operation you may operate at full throttle for periods of less than two minutes.
Final ten hours
1. During the final ten hours of break-in, you may operate at full throttle for five to ten minutes at a time.
2. After warming the engine to operating temperature, momentarily increase engine speed.
3. Occasionally reduce engine speed to idle to provide cooling periods.
4. At the end of the 20 hour break-in period, drain the engine oil and replace the oil filter. Fill the crankcase with
Mobil 1 (15-50W) engine oil.

First service inspection (Dealer 20-hour check)_____________________________________

To ensure your continued boating enjoyment, we recommend that you return your Volvo Penta product to your Volvo
Penta dealer for a 20-hour check. This 20-hour check will prevent a minor problem from getting worse, and helps
ensure a trouble-free boating season. When following the Volvo Penta guidelines, your dealer will service these items:
Start the engine and check that
— No leakage of fuel, oil, water, or exhaust gases occurs.
— Engine oil pressure and temperature are normal.
— All cables and controls operate correctly.
— All gauges, instruments, and alarms operate correctly.
— Steering system operates correctly.
— Engine ignition timing and idle RPM are within specifications.
— Power trim system operates correctly.
Stop the engine and
— Change engine oil and oil filter.
— Change fuel/water separator filter.
— Clean seawater strainer (if equipped).
— Check fluid levels and fluid condition in sterndrive or inboard transmission, power steering pump, and trim pump.
— Check propeller(s) and propeller(s) fasteners.
— Check condition of battery and battery cable connections.
— Check drive belt(s) tension and condition.
— Lubricate all grease fittings and linkages following service recommendations.
— Check tightness of all water, fuel, and exhaust clamps, fittings, and drain plugs.
Restart the engine and recheck that
— No leakage of fuel, oil, water, or exhaust gases occurs.
— Engine oil pressure and temperature are normal.
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