MAINTENANCE SCHEDULE FOR 4M064/6M11-6M16-6M21 POWERKIT ENGINES Check = Adjust = Clean = Replace = OPERATION • о Δ □ h M Mandatory maintenance, in operation working hours (h) or period (months - M), every, which occurs first MD 8 Coolant level and temperature • Fuel level in the tank • Oil level at 3 mm below the maximum level on the dipstick • Presence of water, fuel and oil leakages • Air cleaner service indicator • Air filter evacuator valve • Cooling fan status • Exhaust gas colour • Engine sound • Engine speed and vibrations • Fuel pre-filter / water separator filter(s) element(s) • Cooling fan and alternator belt(s) • Simple engine overall check • Status of all hoses and tightness of all hose clamps • Battery, battery electrolyte level, battery charger, battery cables • Engine and generator elastic supports • M1 500 12 □¹ M2 R1 R2 R3 R4 1.000 2.000 4.000 8.000 12.000 12 12 24 60 96 ² □ □ Engine oil □² Oil filter(s) element(s) □² Condensing draining pipes Δ Defaults recorded in ECU (if equipped) • Page 1 of 4 Rev. 2019-09-30 MAINTENANCE SCHEDULE FOR 4M064/6M11-6M16-6M21 POWERKIT ENGINES Check = Adjust = Clean = Replace = OPERATION • о Δ □ h M Leaks, oil, coolant and fuel levels with Coolant level and temperature engine running Fuel filter element(s) Centrifugal oil filter element(s) (if equipped) Mandatory maintenance, in operation working hours (h) or period (months - M), every, which occurs first MD 8 M1 500 12 M2 R1 R2 R3 R4 1.000 2.000 4.000 8.000 12.000 12 12 24 60 96 • □¹ ² □² Air filter element - Clean when visual indicator turns red - max 3 times. Δ Breather filter element (if equipped) Δ Aftercooler • Engine and generator mechanical connection • Conditions and tightness of all electrical connections • State and tightness of starter • Tightness of couplings and all elements of the transmitting power • □ □ Δ □ The rocker arm and cross-bar clearance о Oil cooler (if equipped) Δ Radiator and cooling system Δ □ □ Turbocharger - axial and radial clearances • Turbocharger air intake side and air pipes Δ Radiator pressurized cap • □ Turbocharger • □ Oil pressure sensor • Coolant temperature sensor • □ Coolant Page 2 of 4 Rev. 2019-09-30 MAINTENANCE SCHEDULE FOR 4M064/6M11-6M16-6M21 POWERKIT ENGINES Check = Adjust = Clean = Replace = OPERATION • о Δ □ h M Mandatory maintenance, in operation working hours (h) or period (months - M), every, which occurs first MD 8 M1 500 12 M2 R1 R2 R3 R4 1.000 2.000 4.000 8.000 12.000 12 12 24 60 96 Coolant levelhoses/pipes and temperature Fuel flexible □ Coolant flexible hoses □ Injectors • □ Fuel supply pump • □ Fuel injection pump • □ Belt tensioner(s) • Thermostatic valve(s) □ Coolant pump □ Condition of the cylinder head seating in the plane of the cylinder head gasket • Cylinder heads, grind if required о Seats valves, guides, valves, springs, sleeves. Replace if necessary. • Condition of rocker arm and shaft • Perform sealing pressure test of cylinder heads • Condition of the injection pipes • □ Damper and fixing screws (if equipped) Liners • □ Pistons, Piston Rings • □ Lubricating pipes (rocker arm, turbochargers …) □ Cooling fan bracket/support □ Piston rings □ Page 3 of 4 Rev. 2019-09-30 MAINTENANCE SCHEDULE FOR 4M064/6M11-6M16-6M21 POWERKIT ENGINES Check = Adjust = Clean = Replace = OPERATION • о Δ □ h M Mandatory maintenance, in operation working hours (h) or period (months - M), every, which occurs first MD 8 M1 500 12 M2 R1 R2 R3 R4 1.000 2.000 4.000 8.000 12.000 12 12 24 60 96 Coolant levelrod and temperature Connection bearings □ • Timing gears clearances Front and rear seals on the crankshaft □ Camshaft, tappets and bush rods □ Note ¹ : The indicated change interval running hours is the maximum period when using good quality fuel, (EN 590 standard); this is reduced if the fuel is low quality fuel, if the fuel is contaminated, if the fuel has presence of water. Note ² : For the engines model 4M06GT20/5 - 4M06GT25/5 - 4M06GT35/5 in special version for Telecom application the change interval is every 1000 operation working hours or 12 months, which occurs first. Page 4 of 4 Rev. 2019-09-30