Doosan 12/56 Manual Download Page 8 | Manualshive

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Doosan 12/56 Manual Download Page 8

10/12/2010

8

Company Confidential

LUBRICATION & COOLING

• The Separator tank is also the

reservoir of compressor oil.

• Pressure in the tank is forcing

the oil through the system.

Company Confidential

LUBRICATION & COOLING

• Cool box design with pusher

type fan.

Company Confidential

LUBRICATION & COOLING

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Summary of Contents for 12/56

Page 1: ...fm 7 41 P135 7 bar 100 PSI 4 0 m3 min 140 cfm 7 51 XP185 7 bar 100 PSI 5 0 m3 min 175 cfm 7 71 P260 7 bar 100 PSI 7 1 m3 min 250 cfm 12 56 12 bar 170 PSI 5 6 m3 min 200 cfm Company Confidential SUMMAR...

Page 2: ...RH8N 4IRH8N 4IRI8N Model 3TNV82A 3TNV88 4TNV88 4TNV98 Cylinders 3 3 4 4 Displacement 1 3 1 6 2 2 3 3 Rated Output kW RPM 21 1 2800 25 8 2800 34 8 280 0 49 7 240 0 Aspiration Naturally aspirated Fuel P...

Page 3: ...t 3 3 Rated Output kW RPM 59 2 2300 Aspiration Turbocharged Fuel Pump Mono plunger mechanical pump Emissions Tier III certified Electrics 12 Volts Company Confidential Eco Governor is Yanmar unique el...

Page 4: ...ntake Exhaust ECU Speed Load Temp ECU EGR Valve Piston Inj Nozzle EGR Valve Combustion temperature is reduced NOx Reduced Exhaust Gas Re Circulation Speed Load Temp ENGINE Tier 3 Improvements YANMAR E...

Page 5: ...High pressure gallery Low pressure gallery orifice Water separator 12 48 Engine coolant Thermo element Engine oil Cam Trochoid pump ENGINE Tier 3 Improvements YANMAR ECO Company Confidential ENGINE Ti...

Page 6: ...only formerly used on 7 21 and 7 26 Cast iron body Company Confidential AIREND 7 20 Now used on 7 20 only Formerly used on 7 21 and 7 26 Company Confidential AIREND 7 26E 7 51 85 mm Airend Different g...

Page 7: ...dential COMPRESSOR OIL SYSTEM Functions of the oil system Lubricating the rotors airend bearings and mechanical seals Sealing the clearances between the airend rotors Cooling of the airend Heat is gen...

Page 8: ...COOLING The Separator tank is also the reservoir of compressor oil Pressure in the tank is forcing the oil through the system Company Confidential LUBRICATION COOLING Cool box design with pusher type...

Page 9: ...any Confidential LUBRICATION COOLING Compressor oil filter 10 micron rating Company Confidential LUBRICATION COOLING 7 26E 7 51 Company Confidential LUBRICATION COOLING 7 26E 7 51 Oil filter head inte...

Page 10: ...10 12 2010 10 Company Confidential LUBRICATION COOLING 7 71 12 56 Company Confidential LUBRICATION COOLING 7 71 12 56 Company Confidential LUBRICATION COOLING 7 71 12 56...

Page 11: ...nfidential AIR REGULATION SYSTEM The air regulation system continuously adjusts the production of compressed air to the consumption by controlling the engine speed and unloader valve The unloader and...

Page 12: ...Confidential AIR FLOW REGULATION 7 20 Start up Service valve closed Company Confidential AIR FLOW REGULATION 7 20 Air demand Service valve open Company Confidential AIR FLOW REGULATION 7 20 Off load...

Page 13: ...ssure 4 Increase by tightening regulator screw B or decrease by un tightening Company Confidential AIR FLOW REGULATION 7 20 Orifice continuously bleeds air from the regulation circuit Size of orifice...

Page 14: ...f adjusting screw Pin hole allows to determine diaphragm condition Company Confidential AIR FLOW REGULATION 7 20 Mechanical engine Spring loaded piston Air pressure increase reduces speed Electronic e...

Page 15: ...ompany Confidential AIR FLOW REGULATION 7 26E 7 51 Air demand Service valve open Company Confidential AIR FLOW REGULATION 7 26E 7 51 Off load Service valve closed Company Confidential AIR FLOW REGULAT...

Page 16: ...IR FLOW REGULATION 7 26E 7 51 Company Confidential AIR FLOW REGULATION 7 26E 7 51 Connection on compressor inlet allows to reduce noise Regulation Orifice Company Confidential AIR FLOW REGULATION 7 71...

Page 17: ...dential AIR FLOW REGULATION 7 71 12 56 Load button pressed Service valve closed Company Confidential AIR FLOW REGULATION 7 71 12 56 Off load Service valve closed Company Confidential AIR FLOW REGULATI...

Page 18: ...mpinges on the underside of the specially shaped base of the separator element The separator element then removes any remaining oil entrained in the air The oil which flows down the inside surfaces of...

Page 19: ...0 Company Confidential SEPARATOR RECEIVER TANK 7 20 Company Confidential SCAVENGE LINE 7 20 Orifice is located in the elbow connector It is designed to scavenge the oil while limiting the loss of air...

Page 20: ...ALVE 7 20 Valve is on the oil side of the element where pressure is maximum when the separator element is blocked Company Confidential SONIC ORIFICE 7 20 Maintains a min pressure 5bar in the receiver...

Page 21: ...ny Confidential SEPARATOR ELEMENT 7 20 The scavenge tube is part of the separator element Earth staple Company Confidential SEPARATION SCHEMATIC 7 26E 7 51 Company Confidential SCAVENGE LINE 7 26E 7 5...

Page 22: ...10 12 2010 22 Company Confidential SCAVENGE LINE 7 26E 7 51 Scavenge Return Company Confidential SONIC ORIFICE 7 26E 7 51 Company Confidential SEPARATION SCHEMATIC 7 71 12 56...

Page 23: ...10 12 2010 23 Company Confidential SEPARATOR TANK 7 71 12 56 Company Confidential SCAVENGE LINE 7 71 12 56 Scavenge Orifice Scavenge Return Company Confidential SONIC ORIFICE 7 71 12 56...

Page 24: ...relieve the pressure from the separator tank automatically or manually if required Company Confidential AUTO BLOWDOWN 7 20 Normally closed valve Pilot is high pressure at inlet that appears when compr...

Page 25: ...10 12 2010 25 Company Confidential AUTO BLOWDOWN 7 20 Pilot Line Company Confidential AUTO BLOWDOWN VALVE Company Confidential AUTO BLOWDOWN 7 26E 7 51...

Page 26: ...10 12 2010 26 Company Confidential AUTO BLOWDOWN 7 26E 7 51 Pilot Line Company Confidential BLOWDOWN 7 71 12 56 Pilot Line Company Confidential MANUAL BLOWDOWN 7 71 12 56...

Page 27: ...voltage 4 High Eng Temp 5 Low Engine Oil Press INSTRUMENT PANEL 7 51 Tier 3 New Tier 3 7 51 uses standard control panel and a diagnostic readout panel called SECU Diagnostic codes for compressor will...

Page 28: ...7 51 Tier 3 6 Comp Sensor 7 Low Engine Speed 8 Low Fuel 9 High Airfilter press ALARMS SHUTDOWNS Compressor A Engine Comm Error Engine model not recognized Comp will start and operate within a 1700 230...

Page 29: ...al in conjunction with our Electronic Manual to troubleshoot the entire system Company Confidential II III Sequence Key Switch Position 0 Position 1 Position 2 Position 3 OPERATION STARTING Company Co...

Page 30: ...OPERATION STARTING At temperatures below 0 C or if there is difficulty starting first time 1 Open a service valve fully with no hose connected 2 Complete starting sequence as previous 3 Close service...

Page 31: ...As soon as the engine stops the automatic blowdown valve will relieve all pressure from the system If valve fails to operate pressure must be relieved by means of the service valve Never allow unit t...

Page 32: ...starter solenoid signal SAFETY prevents the starter from being energized when the engine is running prevents the engine from being started if the air end temperature is too high or fuel level is low...

Page 33: ...ontroller functions are DIAGNOSTICS optional LEDs that indicate the cause of a shutdown alternator light Tachometer The air heater is driven by the key switch not by the mini controller Company Confid...

Page 34: ...10 12 2010 34 Company Confidential WIRING DIAGRAM 7 41 Company Confidential WIRING DIAGRAM 7 41 Company Confidential WIRING DIAGRAM 7 41...

Page 35: ...10 12 2010 35 Company Confidential WIRING DIAGRAM 7 41 Company Confidential WIRING DIAGRAM 7 41 Company Confidential WIRING DIAGRAM 7 51 Tier 2...

Page 36: ...10 12 2010 36 Company Confidential WIRING DIAGRAM 7 51 Tier 2 Company Confidential WIRING DIAGRAM 7 51 Tier 2 Company Confidential WIRING DIAGRAM 7 51 Tier 2...

Page 37: ...10 12 2010 37 Company Confidential WIRING DIAGRAM 7 51 Tier 2 Company Confidential WIRING DIAGRAM 7 51 Tier 2 Company Confidential WIRING DIAGRAM 7 51 Tier 2...

Page 38: ...2 2010 38 Company Confidential WIRING DIAGRAM 7 71 12 56 Tier 2 Machine OFF Company Confidential WIRING DIAGRAM 7 71 12 56 Tier 2 Machine ON Company Confidential WIRING DIAGRAM 7 71 12 56 Tier 2 IN BY...

Page 39: ...onfidential WIRING DIAGRAM 7 71 12 56 Tier 2 CRANK Company Confidential WIRING DIAGRAM 7 71 12 56 Tier 2 RUNNING Company Confidential TROUBLESHOOTING OIL CARRYOVER LOW AIR VOLUME OVERHEATING HIGH PRES...

Page 40: ...ressor being operated at the correct engine speed Is the correct type of oil being used Is the scavenge line working Check scavenge orifice and check valve Clean tubes Check scavenge tube length Compa...

Page 41: ...oil circuit Check the oil cooler restriction Check the compressor oil filter Is the oil cooler clean Is the oil bypass valve working Check valve operation but never remove it as the oil cooler would...

Page 42: ...ize correct Is there a restriction across the separator element Company Confidential STARTING PROBLEMS ENGINE WILL NOT CRANK Is the battery charged Is the compressor inclination less than 15 Is there...

Page 43: ...loaded in engine ecu YDT Pump replacement New pump data needs to be loaded in engine ecu YDT Rack Actuator Is mounted on the fuel pump Cannot be ordered separately needs to be replaced by a Tier 3 cer...

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