Training: Mitsubishi TIER II, S6S-DT engine (Fork-lift specification)

Transcription

1 Training: Mitsubishi TIER II, S6S-DT engine (Fork-lift specification) 1 Service Department

2 Mitsubishi: - Mitsubishi was founded in Sagamihara factory opened in Since 1992 Joint Venture with Caterpillar for engines and forklifts employees 2 Service Department

3 Engine specifications: Rotation direction: Clockwise, viewed from the front (timing gear side) 3 Service Department

4 Engine specifications: Engine output: Number of cylinders: 65kW/ 88 Hp 6 Bore x Strole (mm): 94 x 120 Displacement (cc): 4996 Compression ratio: 19.5 : 1 Intercooler: N/A Rated power (kw/rpm): 65kW/2200 Peak torque (Nm/rpm): 348/1400 Low idle speed (rpm): /- 50 High idle speed (rpm): 875 +/- 50 Injection pump: Distributor (Bosch VE-type) Engine Oil Quantity: 17.5L Combustion method: Direct injection 4 Service Department

5 Engine specifications: Firing order: Nominal compression pressure at 300 Rpm: 2.94 MPa. (29.4 bar) (oil and water temp. at: 20 / 30 c) Limit: 2.64 MPa. (26.4 bar) Lubricating oil pressure: At 1500 rpm: MPa. ( bar) Limit: 0.15 MPa (1.5 bar) Idling: 0.1MPa (1 bar). Limit: 0.05 MPa (0.5 bar) Oil temperature: C Oil pressure relief valve (piston) opening pressure: / MPa (3.5 +/- 0.5 bar) 5 Service Department

6 Engine serial position: Engine serial number is stamped in the block under the exhaust manifold, close to the flywheel. 6 Service Department

7 Tightening Torque Tables: 7 Service Department

8 Tightening Torque Tables: 8 Service Department

9 Tightening Torque Tables: 9 Service Department

10 Maintenance intervals: Every 10 Hrs / daily service: - Engine oil level check / add - Air filter element check / clean Every 50 Hrs service: - Engine oil & oil filter change / replace (initial 50 hours only) - Water separator check / clean Every 250 Hrs service: - Engine oil & oil filter change / replace Every 500 Hrs service: - Air cleaner element * - Adjust valves - Fuel filter * = air cleaner element / fuel filter change interval may be determined by an air / fuel restrictor indicator 10Service Department

11 Maintenance interval & data: Valve clearance (cold): 0.25 mm (inlet & exhaust) Every 500 Hrs! Fan belt deflection: 10~12 mm Engine oil spec. / interval: CH-4 15W-40 / 250 Hrs 11Service Department

12 Fuel injection system: Injector nozzle valve opening pressure: MPa (176.5 bar) Fuel injection pump: 12Service Department

13 Fuel injection system: Injectors Tightening toque for re-assembling injector: Nm 13Service Department

14 Fitting the fuel injection system: - Install the pump align the mark (3) on the pump gear with the mark (3) on the timing gear. (remove complete timing cover) - Or install the pump and align the mark (3) on the pump gear with the mark you made earlier on the timing gear. (remove cover over fuel injection gear) 14Service Department

15 Adjusting the fuel injection system: - Turn crankshaft clockwise until TDC - Pointer 0 - Inlet & exhaust rocker arm cylinder No.:1 = loose (not actuated) - Check that the alignment mark (A) of the fuel injection pump is aligned with the alignment mark (B) of the flange plate Service Department

16 Lubrication system: Oil cooler Lubricating oil pressure: - At 1500 rpm: MPa. ( bar) Limit: 0.15 MPa (1.5 bar) - Idling: 0.1MPa. (1 bar) Limit: 0.05 MPa (0.5 bar) Oil temperature: C - Oil relief valve (piston) opening pressure: / MPa (3.5 +/- 0.5 bar) - Safety valve opening pressure: 1.1 MPa. (11 bar) 16Service Department

17 Lubrication system: Position: relief & safety valves 17Service Department

18 Lubrication system: Oil pressure relief valve: 18Service Department

19 Lubrication system: oil filter by-pass By-pass valve opens: when filter is clogged and there is a pressure difference of more then 0.1 +/ MPa ( 1 +/- 0.2 bar) between the upstream and downstream oil pressure. 19Service Department

20 Lubrication system: oil cooling jets 20Service Department

21 Lubrication system: What role has the oil in the engine: It reduces friction of sliding surfaces and prevents seizures. It fills gaps between metal parts and seals the combustion chamber to prevent leaks of combustion energy. It rinses away carbon and impurities produced by combustion. It protects metal parts from corrosive products with oil film, thus preventing rust. 21Service Department

22 Cooling system: - System is forced circulation type. - Coolant is sucked by the water pump out of the radiator via the cylinders through the cylinder head thermostat. - When the coolant is below 76.5 C it circulates via a by-pass to the water pump and back into the cylinder block. -When the coolant goes over 76.5 C the thermostat gradually opens and the coolant flows direct into the radiator. (thermostat max. open at 90 C) 22Service Department

23 Cooling system: Test procedure for thermostat: 23Service Department

24 Outline of inlet and exhaust system: Boost pressure at 87HP/2200rpm : +/- 460mmHg = +/- 61 kpa (0.61 bar) In the Material Handling Equipment configuration, the engine is not equipped with an air to air intercooler. Turbo: Mitsubishi TE06H 24Service Department

25 Mitsubishi S6S-DT with distributor VE inj. pump Thank you for your attention, this is the end of the training presentation for this particular engine. More details on this engine can be found: 25Service Department