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OPERATION & MAINTENANGE MANUAL MITSUBISHI MARINE ENGINE S6R2-T2MTK3L Marine Gear Less The operator and supervisor are requested to read this Oper- ation and Maintenance Manual carefully before operating the engine or conducting inspection and maintenance. Never operate the engine or conduct maintenance work with- out completely understanding this manual. MITSUBISHI "=>: HEAVY INDUSTRIES, LTD, Pub. No. 9941029100 Chapter 7 MAINTENANCE SCHEDULE eres Maintenance Schedule Table 7-1 Maintenance Schedule Maintenance intervals ' Service item Page Engine Oil, Oil Filter and Bypass Oil Filter - Replace 811 First 100 service hours | Fuel Filter - Replaco ; 87 (only once) Valve Clearance - Inspect and Adjust E Engine External - Inspect 81 Every 100 service hours | Oil-water Separator - Drain Water 85 Engine Oil, Oil Filter and Bypass Oil Filter - Replace ET Every 250 service hours | Beil and Bell Tension - Inspect and Adjust E 8-2 Pre-cleaner - Clean, Inspect and Replace 8-21 : Also Service Contents for Every 100 and 250 Service Hours - Every 500 service hours | Zinc Rod - Inspect 820 Gauze Filter - Clean 8-6 Also Service Contents for Every 100, 250 and 500 Service Hours = Fuel Filter - Replace 87 Oil-water Separator Element - Replace 85 Every (O sete Seawater Pump Impeller - Inspect 8-19 Turbocharger Roter Movement and Looseness - Inspect * Valve Clearance - Inspect and Adjust j Fuel Injection Nozzle - Inspect and Adjust ê Also Service Contents for Every 100, 250, 500 and 1000 Service Hours - High Pressure Fuel Injection Pipe and Clamp Seat - Inspect and Replace 810 Low Pressure Fuel Pipe, Oil Pipe and Clip - inspect and Replace 810 Every 2000 service Fuel Injection Nozzle Tips - Replace cm hours or every 1 year | Fuel Control Link Ball Joint - Inspect 89 Seawater Pump Impeller - Replace * Bolts and Nuts on Exhaust and Air Inlet Pipes - Retighten ú Harness Damage and Terminal Loose - Inspect o 72 Chapter 7 MAINTENANCE SCHEDULE — ecos ED Table 7-1 Maintenance Schedule Maintenance intervals Service item Page 8000 service hours or every 5 years (Also Service Contents for Every 100, 250, 500, 1000, 2000 and 4000 Service | Hours | | Piston - Inspect Crankshaft - Inspect Main Bearing - Replace Thrust Plate - Replace Comnecting Rod Bearing - Replace Camshaft Bushing - Inspect Cylinder Liners - Replace | Piston Ring - Replace | Inlet and Exhaust Valve - Replace | Inlet and Exhaust Valve Seat - Replace | Valve Rotator - Replace | Damper - Replace Engine Overhaul Fuel Flexible Hose - Replace Fuel Injection Pump - Inspect and Test (Replace Parts as Necessary) Govemor - Inspect and Test (Replace Parts as Necessary) High Pressure Fuel Injection Pipe Clamp Seat - Replace Oil Cooler - Clean Fresh Water Pump Unit Seal and Ball Bearing - Replace Seawater Pump Unit Seal and Ball Bearing - Replace Tension Pulley Bearing - Replace | Thermostat - Replace Coolant Hose - Replace | Fresh Water Tank Cap - Replace Turbocharger - Overhaul Electrical Components - Inspect Relays - Replace Every 16000 service hours or 10 years Also Service Contents for Every 100, 250, 500, 1000, 2000, 4000 and 8000 Service Hours Replace the Following Parts With New Ones. Piston, connecting rod bushing. piston pin, rocker bush, gear bushing, tappet, valve guide, valve spring, connection rod bolt, main bearing cap bolt, high pressure fuel injection pipe, low pressure fuel pipe, and oil pipe Cylinder Head Bolt - Inspect Note: (a) The table above also include the parts which Mitsubishi Heavy Industries, Ltd. does not supply. For the paris Mitsubishi Heavy Industries, Ltd. does not supply, inspect and maintain them by following the instruc- tions in the manufacturer's operation manual. (b) Items marked with * in the maintenance schedule require special tools or professional maintenance service. For the servicing of those items, contact a dealer of Mitsubishi Heavy Industries, Ltd. (c) Be sure to conduct periodic inspection at specified intervals, service hours or years, whichever comes first. 7-4 
