PERIODIC MAINTENANCE SCHEDULE general guideline. CAUTION!

1 PERIODIC MAINTENANCE SCHEDULED aily and PERIODIC MAINTENANCE is important to keep the engine in good operating following is a summary of MAINTENANCE items by PERIODIC MAINTENANCE intervals. Periodicmaintenance intervals vary depending on engine application, loads, diesel fuel and engineoil used and are hard to establish definitively. The following should be treated only as ageneral guideline. CAUTION! Establish a PERIODIC MAINTENANCE plan according to theengine application and make sure you perform the required PERIODIC maintenanceat intervals indicated. Failure to follow these guidelines will impair the engine ssafety and performance characteristics, shorten the engine s life and may affect thewarranty coverage on your engine. See your authorized Yanmar marine dealer ordistributor for assistance when checking items marked with a . : Check or Clean : Replace : Contact your authorized Yanmar marine dealer or distributorSystemItemPeriodic MAINTENANCE IntervalDailyEvery 50hours ormonthlywhich-evercomesfirstEvery125hou rs or6monthswhich-evercomesfirstEvery250hou rsor oneyearwhich-evercomesfirstEvery500hours or 2yearswhich-evercomesfirstEvery1000hours or 4yearswhich-evercomesfirstEvery1250hours or 5yearswhich-evercomesfirstWholeVisualins pectionof engineexterior FuelSystemCheck thefuel leveland refill ifnecessary Drainwater andsedimentfrom fueltank Drain thefuel / waterseparator Replacethe fuelfilterelement Initial 50 Check thefuelinjectiontiming * * Check thefuelinjectorpressureand nozzlespraypattern* Initial250 * PERIODIC MAINTENANCE546 LPA Series Operation Manual 2007 Yanmar Marine International : Check or Clean : Replace.

2 Contact your authorized Yanmar marine dealer or distributorSystemItemPeriodic MAINTENANCE IntervalDailyEvery 50hours ormonthlywhich-evercomesfirstEvery125hou rs or6monthswhich-evercomesfirstEvery250hou rsor oneyearwhich-evercomesfirstEvery500hours or 2yearswhich-evercomesfirstEvery1000hours or 4yearswhich-evercomesfirstEvery1250hours or 5yearswhich-evercomesfirstLubricatingSys temCheck theengine oillevel Changethe engineoil Initial 50 Replacethe engineoil filterelement Initial 50 Wash theengine oilcooler MarineDriveSystemCheckmarinedrive oil Refer to the marine drive system operation oil Checkpower trimoil Checkdrive oil FreshWaterCoolingSystemCheckcoolantlevel Changecoolant Clean andcheck thecoolingwaterpassage Clean thecoolingwatersystem PERIODIC MAINTENANCE6 LPA Series Operation Manual55 2007 Yanmar Marine International : Check or Clean : Replace : Contact your authorized Yanmar marine dealer or distributorSystemItemPeriodic MAINTENANCE IntervalDailyEvery 50hours ormonthlywhich-evercomesfirstEvery125hou rs or6monthswhich-evercomesfirstEvery250hou rsor oneyearwhich-evercomesfirstEvery500hours or 2yearswhich-evercomesfirstEvery1000hours or 4yearswhich-evercomesfirstEvery1250hours or 5yearswhich-evercomesfirstSeawaterCoolin gSystemCheckseawateroutletdischarge DuringOper-ation Check orreplace theseawaterpumpimpeller Check orreplace thezincanodes Check andclean theseawaterpassage PipingClean orreplace theexhaust /watermixingelbow Check orreplacefuel lineand rubberhoses ElectricalSystemCheck thealarm andindicators Check theelectrolytelevel in thebattery Adjust thetension ofthealternatorV-belt orreplace V-belt PERIODIC MAINTENANCE566 LPA Series Operation Manual 2007 Yanmar Marine International : Check or Clean : Replace.

3 Contact your authorized Yanmar marine dealer or distributorSystemItemPeriodic MAINTENANCE IntervalDailyEvery 50hours ormonthlywhich-evercomesfirstEvery125hou rs or6monthswhich-evercomesfirstEvery250hou rsor oneyearwhich-evercomesfirstEvery500hours or 2yearswhich-evercomesfirstEvery1000hours or 4yearswhich-evercomesfirstEvery1250hours or 5yearswhich-evercomesfirstRemoteControlH andleCheck andlubricatethe remotecontrolcableoperation Adjust theremotecontrolcable Intake andExhaustSystemWashturbo-chargerblower Clean aircleaner Adjust theintake andexhaustvalveclearance Initial250 Lap theintake andexhaustvalves Miscel-laneousCheck andadjust thepowersteering oilpump belt(6 LPA-STZP2only) Replacethe timingbelt *For EPA requirements, see Inspection and MAINTENANCE of EPA Emission-Related Parts on page : These procedures are considered normal MAINTENANCE and are performed at theowner s MAINTENANCE6 LPA Series Operation Manual57 2007 Yanmar Marine InternationalInspection and MAINTENANCE of EPA Emission-Related PartsPartsIntervalClean fuel injection nozzle1500 hoursCheck fuel injection nozzle (adjustment)3000 hoursCheck fuel injection pump adjustmentCheck turbocharger adjustmentCheck electronic engine control unit and its associated sensors and actuatorsNote: The inspection and MAINTENANCE items shown above to be performed at your Yanmardealer or MAINTENANCE586 LPA Series Operation Manual 2007 Yanmar Marine International