Introduction to Preventive Maintenance Schedule
Preventive maintenance is the maintenance that has to be performed to the equipment, in a pre designed way before severe breakdown occurs. If a record is kept for specific measurable parameters such as body and bearing temperature, insulation resistance, earth resistance etc., it is feasible from the scrutiny of this record to calculate the occurrence of future trouble and essential steps can be taken to avoid the occurrence of severe breakdown.
The interval of doing several maintenance operations relies on the type of equipment, ambient condition and other issues. It is hard to lay down hard and fast rules that covering all circumstances but for average normal industrial duty with in the mentioned time schedule will provide as guide. This can be customized to suit other conditions at site.
Daily maintenance:
A.) Check visually earth connections and motor leads.
B.) Test motor windings for overheating.
C.) Check control equipment.
D.) Test condition of bearings.
F.) Add oil, if essential,
G.) Test end play.
Weekly maintenance:
A.) Test belt tension. In the case of sleeve bearing machines the air gap among the rotor and stator should be checked.
B.) Blow out dirt from the protected type motors' windings situated in dusty locations.
C.) Check starting equipment for burnt contacts in which motor is started and stopped frequently.
D.) Check oil in the case of oil ring lubricated bearings for contamination through dust, grit etc. (this can be approximately judged from the colour of the oil).
E.) Test the intensity of vibrations throughout operation of the motor.
F.) Clean filters in which provided.
Monthly maintenance:
A.) Overhaul controllers.
B.) Examine and clean oil circuit breakers.
C.) Renew oil in high speed bearings in damp and dusty locations.
D.) Wipe brush holders and test bedding of brushes of slip-ring motors.
E.) Test that the connections of temperature detectors and space heaters, in which provided, are proper and these are in working order.
Half-Yearly Maintenance:
A.) Clean windings of motors subjected to corrosive or other elements as well bake and varnish them, if essential.
B.) In the case of slip-ring motors, test the slip-rings for grooving or unusual wear.
C.) Test grease in ball and roller bearings and make it up where necessary taking care to avoid overfilling.
D.) Drain all oil bearings; wash along with petrol to which a few drops of oil have been added, flush with lubricating oil and refill with clean oil.
Annual Maintenance
A. Test all high speed bearings and renew, if essential.
B. Blow out all motor windings carefully with clean dry air. Ensure that the pressure is not so high as to damage the insulation.
C. Clean and varnish dirty and oily windings.
D. Overhaul motors that have been subjected to severe operating conditions.
E. Renew switch and fuse contacts if damaged.
F. Test oil for its dielectric strength.
G. Renew oil in starters subjected to damp or corrosive elements.
H. Test insulation resistance to earth and among the phases of motor windings, control gear and wiring.
I. Test resistance of earth connections.
J. Test air gaps.
K. Test condition of all fasteners.
Latest technology based Electrical Engineering Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Preventive Maintenance Schedule homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Preventive Maintenance Schedule, project ideas and tutorials. We provide email based Preventive Maintenance Schedule homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Preventive Maintenance Schedule. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Electrical Engineering homework help and assignment help services. They use their experience, as they have solved thousands of the Electrical Engineering assignments, which may help you to solve your complex issues of Preventive Maintenance Schedule. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
tutorsglobe.com production function assignment help-homework help by online meaning of production tutors
tutorsglobe.com cattle breeding assignment help-homework help by online applied biology tutors
Refrigerators tutorial all along with the key concepts of Heat Pumps, Air conditioners, Coefficient of Performance of Refrigerators, Coefficient of Performance of Carnot-Cycle Refrigerator, Coefficient of Performance an Ideal Stirling-Cycle Engine
TutorsGlobe.com Mole Concept-I Assignment Help-Homework Help by Online Access Chemistry Tutors
tutorsglobe.com role of bacteria in industry assignment help-homework help by online beneficial activities of bacteria tutors
www.tutorsglobe.com offers redox reactions homework help, redox reactions assignment help, online tutoring assistance, physical chemistry solutions by online qualified chemistry tutor's help.
tutorsglobe.com cell principle assignment help-homework help by online cell theory tutors
tutorsglobe.com electron transport chain assignment help-homework help by online krebs cycle tutors
tutorsglobe.com american breeds assignment help-homework help by online breeds tutors
Charcoal Analysis and Percentage of Water in a Hydrate tutorial all along with the key concepts of Moisture Content, Volatile Combustible Matter, Ash and Fixed Carbon, Percentage of water in Hydrate and Theory of percentage of water in hydrate
Spectroscopic Techniques tutorial all along with the key concepts of Definition of spectroscopy, Interaction of radiation and matter, Electromagnetic radiation, Absorption of radiation, Emission of radiation, Types of spectroscopy
The VAS (value added statement) assists to promote the message that a business is a coalition of interests and which business success relies on co-operation among the several stakeholders.
Theory and lecture notes of One Shot Game all along with the key concepts of one shot game, Strategic Form, Eliminating Dominated Strategies. Tutorsglobe offers homework help, assignment help and tutor’s assistance on One Shot Game.
tutorsglobe.com uses of noble gas assignment help-homework help by online noble gases tutors
tutorsglobe.com operating cycle concept of working capital assignment help-homework help by online concept of working capital tutors
1950748
Questions Asked
3689
Tutors
1481260
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!