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METAL ARC WELDING
THE PRINCIPLE OF METAL ARC WELDING CONSIST OF ESTABLISHING AN ELECTRIC ARC BETWEEN A METAL ELECTRODE AND THE WORK PIECE TO BE WELDED. ARC CAN BE DESCRIBED AS A STREAM […]
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OXY- ACETYLENE WELDING/CUTTING
ADVANTAGE OF USING ACETYLENE INSTEAD OF OTHER FUEL IS THAT IT PRODUCES A COMPARATIVELY HIGHER TEMPERATURE AND ALSO AN INERT GAS ENVELOP, CONSISTING OF CO2 AND H2O WHICH PREVENTS MOLTEN […]
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Gear Pump Overhaul
Switch off the breaker and take out the fuse. Place MEN AT WORK board. Isolate the pump by closing suction and discharge valve. Open the vent valve to check that […]
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CENTRIFUGAL PUMP OVERHAULING
SWITCH OF THE BREAKER AND TAKE OUT THE FUSE AND KEEP IT IN A SAFE PLACE. PLACE MEN AT WORK BOARD. CLOSE THE SUCTION AND DISCHARGE VALVE OF THE PUMP […]
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STAY BOLTS TIGHTENING
REMOVE THE PROTECTIVE CAP OF THE STAY BOLTS. CHECK THE LOOSE STAY BOLT NUT BY THE HELP OF THE TOMMY BAR. IF LOOSE NUT IS FOUND THEN UNSCREW THE NUT […]
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LIFEBOAT DAVIT MAINTAINANCE
Following maintainance should be done on lifeboat davit : 1. Frame :- Check corrosion , deformation and depression weekly and monthly. 2. Davit Arms :- Check corrosion, deformation and depression […]
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OVERHAULING OF CYLINDER HEAD
CYLINDER HEAD OVERHAULING IS THE MOST BASIC OVERHAULING THAT IS CARRIED OUT ONBOARD. WHEN CYLINDER HEAD IS TAKEN OUT FROM THE AUXILIARY ENGINE IT IS TAKEN TO THE WORKSHOP. FOLLOWING […]
