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Detection of Mitsubishi S6R engine during operation


Detailed Description:

Detection of Mitsubishi S6R engine during operation

When grinding and running, pay attention to the following items and confirm that there is no abnormal phenomenon.

Oil 圧, oil temperature

Cooling water temperature and water capacity

Oil leakage, water leakage, air leakage, especially the installation place of the oil pipe of the turbocharger

Oil spill

Sound and vibration

Intake pressure, inlet temperature

Exhaust color, odor

Exhaust gas temperature

Left and right cylinders are not consistent

Oil mist gas (amount, color)

Speed variation

End face runout and radial runout of the rotating part

Instrument and alarm display and action

2.3.3 Detection and adjustment after running-in

Mitsubishi S6R engine valve clearance

Fuel injection timing

Tighten bolts and nuts on the periphery

Tensioning force of Mitsubishi S6R engine belt

Investigation and repair of oil leakage and other abnormalities

3. Test and adjustment of Mitsubishi S6R engine

(a) Testing, adjustment, and sealing of Mitsubishi S6R engines are allowed only at the repair facility designated by our company.

When the seal is implemented outside the maintenance factory designated by our company, an application for a contract for testing, adjustment and seal operation of the seal operation shall be submitted to the maintenance factory designated by our company.

(b) Performance testing and adjustment of the engine should be implemented after the engine has been fully warmed up and the water and oil temperatures have stabilized.

After the running-in operation is completed and normal operation can be performed, the performance and function of the engine are checked and adjusted.

Be sure to record the test results and compare them with the factory data.

3.1 General performance test of the engine Fuel consumption rate, temperature of each part, pressure of each part, exhaust concentration

3.2 Exhaust performance test Exhaust analysis

3.3 Speed governor performance test

Setting of no load minimum speed (low idling)

Confirmation of set load input, no-load maximum speed (high idling), governor change rate, chatter, and speed change during oil-cut shutdown test. Others, confirm governor setting conditions.

3.4 Mitsubishi S6R engine alarm action, emergency stop test oil pressure drop, water temperature rise, overspeed

3.5 Mitsubishi S6R Engine Fuel Maximum Fuel Injection Setting

(1) The rack at the front end (front side) of the fuel injection pump rack is set to remove the end cap, and the rated (maximum) load is applied.

(2) Tighten the nut at the position where the double nut on the front end of the rack comes into contact with the end face of the spring case.

3.6 Seal

After all performance inspections and adjustments are completed, the engine is stopped, and a prescribed portion is sealed between the governor actuator and the fuel pump rack.

3.6.1 Disassembly anti-tamper protection

The tamper-resistant protection nut has a double structure and cannot be removed by simple rotation. When removing, the cylindrical outer nut must be cut and destroyed before the inner nut can be removed.

3.6.2 Installation of tamper protection

Tighten the tamper-proof protective nut in accordance with the specified torque, and confirm that the inner nut is cut off.

Engine Test Record Form (SR Series)

No.1 Inspection of Mitsubishi S6R engine cylinder liner inner diameter

No.2 Detects the amount of protrusion of the cylinder sleeve of the Mitsubishi S6R engine

No.3 Detecting the inner diameter of the valve guide and the outer diameter of the valve stem of the Mitsubishi S6R engine

No.4 Mitsubishi S6R Engine Cylinder Head Mitsubishi S6R Engine Valve Sinking, Valve Seat Width, and Mitsubishi S6R Engine Valve Machining Allowance

No.5 Detects the amount of deformation of the lower surface of the cylinder head of Mitsubishi S6R engine

No.6 Inspection of the inside diameter of the connecting rod bushing of the Mitsubishi S6R engine and the inside diameter of the bearing end of the connecting rod big end

No.7 Detecting the inner diameter of the rocker bushing of the Mitsubishi S6R engine and the outer diameter of the rocker shaft

No.8 Detects the inner diameter of the piston pin hole and the outer diameter of the piston pin of the Mitsubishi S6R engine

No.9 Detecting the valve clearance of Mitsubishi S6R engine

No.10 detects the fuel injection pressure of the fuel injector of Mitsubishi S6R engine

No.11 Detects the inner diameter of the bushing of the camshaft of the Mitsubishi S6R engine and the outer diameter of the journal of the camshaft (right side)

No.12 Detects the inner diameter of the bushing of the camshaft of the Mitsubishi S6R engine and the outer diameter of the journal of the camshaft (left side)

No.13 Inspection of axial clearance of crankshaft of Mitsubishi S6R engine

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