maintenance work

NO NAME MATRIX NUMBER

1 SUZAIMI BIN DAUD 08DKA12F1106

2 MOHAMAD RIZUWAN BIN HARON 08DKA12F1091

3 WAN MOHD IBTISAM AFIFI BIN WAN IZANI 08DKA12F1107

4 MOHD AIMAN NAJMI BIN ABDULLAH 08DKA12F1096

5 MUHAMAD NAZIRUL ASYRAF BIN KAMARULZALIS 08DKA12F1100

helps in maintaining and increasing the operational efficiency of plant facilities.

Maintenance is the procedure of finding the faults in any equipment/Machine and also removal of fault.

It may be before the breakdown or after the breakdown

general aim of plant maintenance is to create a productive working environment that is also safe for workers.

. Retention aspects of safety and comfort

Maintaining the function and performance of buildings

Maintaining the image and appearance of buildings

Preservation of the asset building

Planned maintainance

a)Preventive maintenance

b)Corrective maintenance

c) Predective maintenance

Unplanned maintainance

It is a set of activities that are performed on plant equipment, machinery, and systems before the occurrence of a failure in order to prevent or eliminate any degradation in their operating conditions

the maintenance carried out at predetermined intervals or according to prescribed criteria

intended to reduce the probability of failure or the degradation of the functioning and the effects limited.

Advantage of preventive maintainance

Provides for extended life of the building and grounds.

Maintains compliance with current codes and standards

Achieves reductions in energy consumption.Enhances the performance of assets by

increasing uptime

Three types of preventive maintenance

Running maintenance

Scheduled maintenance

Shutdown maintenance

Running maintenance

Running maintenance which includes those maintenance activities that are carried out while the machine or equipment is running

Example – lubrication, adjustment of nuts and screws, tightening of loose nut and bolts

Scheduled Maintenance

is any variety of scheduled maintenance to an object or item of equipment.

is a scheduled service visit carried out by a competent and suitable agent, to ensure that an item of equipment is operating correctly

Shutdown maintenance

Which is a set of preventive maintenance activities that are carried out when the production line is in total stoppage situation.

These are performed generally after three or six months.

These involves the inspection of plant items which are known or suspected to occur.

In this type, actions such as repair, replacement, or restore will be carried out after the occurrence of a failure in order to eliminate the source of this failure or reduce the frequency of its occurrence.

It also include the different types of actions like typical adjustment of redesign equipment.

Types of corrective maintenance

Breakdown maintenance

Shutdown maintenance

Breakdown maintenance

It is an emergency based policy in which the plant or equipment is operated until it fails and then it is brought back into running condition by repair.

The maintenance staff locate any mechanical, electrical or any other fault to correct it immediately.

It is feasible for the small factories where

a)There are few types of equipment.

b)Machine and equipments are simple and does not require any specialist.

c) Where sudden failure does not cause any serious financial loss.

Difference of preventive and corective maintenance

Preventive Corrective

Done before problem Done after problem

Done frequently Done randomly

Will minimize the need of corrective

Will maximize the preventive action

it involves the prediction of the failure before it occurs, identifying the root cause for those failures symptoms and eliminating those causes before they result in extensive damage of the equipment

performed continuously or at intervals according to the requirements to diagnose and monitor a condition or system.

Maintenance action which is carried out without any fore thoughts or prior planning is called unplanned maintenance.

Emergency maintenance is one of the example of unplanned maintenance.