Machine Parts

How one inspect Generator Vibration Damper and Viscous? Inspection procedure of Generator Vibration Damper and Viscous The silicone fluid in the vibration damper will become solid after extended service and will make the damper inoperative. An inoperative vibration damper can cause major engine or drivetrain failures.   Vibration Damper and Viscous Check the vibration damper for evidence of fluid loss, dents and   wobble. Inspect the vibration damper thickness for any deformation or raising of the damper cover plate. If any of those conditions are identified, contact your manufacturer and get solution or replace the vibration damper. Viscous damper have a limited life. The maximum damper life one get from operation and maintenance manual book.

How one inspects Vibration Damper and Rubber of Generator? Inspection procedure of Vibration Damper and Rubber of Diesel Generator Check by following picture firstly lines A in the vibration damper hub B and the inertia member C. If the lines are moiré than 1.59 mm= 1/6 inch out of alignment, replace the vibration damper. Inspect the rubber member for deterioration. If pieces of rubber are missing or if the elastic member is more than 3.18 mm= 1/8 inch below the metal surface, replace the damper. Look for forward movement on the damper ring on the hub. Replace the vibration damper if any movement is detected.

How one does properly Diesel Generator Cooling System Fill?   The system must be filled properly to prevent air locks. One must air vented during filling from the engine coolant passages. One must be open the petlock on the aftercooler for after cool engine. Wait about 2 or 3 minutes to allow air to be vented then add mixture to bring the level to the top. Cooling System Fill   The system has design fill rate of 19 liters = 5 gallon per minute. One must follow the caution *** Never use only water for coolant because water create corrosion. One must use mixture of 50 % water and 50 % propylene glycol or ethylene glycol antifreeze to fill the cooling system. Install the pressure cap. Operate the engine until it reaches at temperature of 80 degree Celsius = 180 F Must check the leaks for coolant. One should check the coolant level again to make certain the system is full of coolant or that the coolant level has

Starting procedure of Diesel Generator after 30 days shutdown If one shutdown the engine for more than 30 days to make sure the engine receives the correct oil flow through the lubricating oil system by following steps -           Disconnect the electrical wire from the fuel pump solenoid. -           Rotate the crankshaft, using the starting motor, until oil pressure appears on the gauge or the warning lamp goes out. -           Connect the electrical wire to the fuel pump solenoid valve. -           Start the engine as like as normal starting procedure  

Normal Starting Procedure of a Generator Do not depress the accelerator pedal or move the accelerator lever from the idle position while cranking the engine. This can result in engine over speed and severs damage to the engine.] To prevent damage to the starting motor do not engage the starting motor for more than thirty seconds, wait two minutes between each attempt to start the starting motor. Engine equipped with air starting motors require a minimum 70 psi which is recommended by manufacturer. a.        Disengage the driven unit or if equipped put the transmission in neutral. b.       With the accelerator pedal or lever in the idle position turn the key switch to the ON position and wait for the wait to start lamp to go out then turn the key to the start position. c.        If the engine does not start after three attempts check the fuel supply system. Absence of blue or white exhaust smoke during cranking indicates no fuel is being delivere

By following daily report we can eliminate most failures and emergency repairs. The daily maintenance following conditions 1.        Low lubricating oil pressure 2.        Low power 3.        Power increase or engine surge 4.        Erratic or no accelerator control or response 5.        Any warning lights flashing or staying on 6.        Abnormal water or oil temperature 7.        Unusual engine noise 8.        Excessive engine noise 9.        Excessive smoke 10.    Excessive use of coolant, fuel or lubricant oil 11.    Any fuel , coolant or lubricating oil leaks 12.    Loose or damaged parts 13.    Worn or damages belts

Preventive maintenance begins with day to day awareness of the engine and its system. Before starting the engine check the oil and coolant levels such as # Leaks # Damage parts or Loose # Torn or damaged belts or worn # Engine appearance with any change # Odor of fuel The engine must be maintained in top mechanical condition if the operator is to get optimum satisfaction from its use. The maintenance department needs daily running reports from the operator to make necessary adjustments in the time allocated. The daily running report also helps to make provisions for more extensive maintenance work as the reports indicate the necessity.

Definition of Magneto hydrodynamic generator (MHD): Magneto hydrodynamic generator (MHD) is a process for producing electricity by passing an ionized gas through a channel across which exists a magnetic field.                                                                        Figure: Schematic Diagram of a MHD Generator Working Principle of MHD: In a conventional generator a conductor is moved against a regarding force and this requires work input. MHD is an analogous to conventional generator but a conducting fluid instead of conductor is moved through a magnetic field than a current is induced in the fluid. The fluid becomes ionized gas. When a ionized gas passed through a magnetic field some of the electrons in the ionized gas are diverted to one of the two electrode as shown above the figure.   

If the counter emf   becomes equal to the applied voltage, then current through the armature conductor will be zero and for this armature of motor will not rotate. Thus again the counter emf of the motor will be zero. So the counter emf can never be equal or greater than terminal voltage of a motor. Explain the universality of the statement that motor action is always accompanied by generator action or vice versa:  When armature of motor rotates in magnetic field, then the conductors cut flux and for this reason a voltage is induced across the armature. This is the motor action accompanied by the generator action. In the case of a generator, current flows through the conductors of the armature. When a current flowing conductor is placed in a magnetic field, it rotates. Thus it is the generator action accompanied by motor action. What are the detrimental effects of armature reaction on the performance of a dc machine?    Mechanism of Solar Colle