CHAPTER ONE
1.0 INTRODUCTION TO MAINTENANCE OF
WORKSHOP EQUIPMENT
All action necessary for retaining a machine or machine
component to its normal condition, including servicing, repair, modification,
over hauled, inspection and condition verification.
It can also be referred to as the procedural and periodic
actions taken to restore a machine to its designed function and these are of
different priority which are as follows:
i.
Emergency work (high order priority general offline)
ii.
Differed work (low order priority)
iii.
To reduce repetitive breakdown.
iv.
To reconditioning or redesign job.
However,
maintenance task are of different types which are:
i.
Preventive maintenance
ii.
Corrective maintenance
iii.
Break down maintenance
Preventive
maintenance:-
These are the necessary actions that is required in an organizations or
workshops to minimize damage or break down to the machines used and some other
equipment in the workshop.
This maintenance task is carried out usually before the
machine or equipment used in the workshop developed fault e.g changing the
lubricating oil weekly or monthly even yearly depending on the level of usage
and quality of the oil.
Corrective
maintenance:-
These are the actions necessitated due to defect or fault developed by machine
or equipment used in the workshop. In this kind of maintenance immediate
actions are necessary to prevent further damage to the machine and to the
working personnel in the workshop.
Break down
maintenance:-
These are redesigns or installations that are carried out in a workshop, when a
machine has completely break down which then need for redesign or
re-installation of new component of the machine.
1.1 AIMS AND OBJECTIVES OF
MAINTENANCE
i.
To achieve production quality and customer satisfaction
through adjustable and serviced equipment.
ii.
To maximize useful life of equipment.
iii.
To keep equipment safe and prevent safety hazards.
iv.
To minimize frequency and severity of interruptions.
v.
To maximize production capacity through high utilization of
facility
1.2 IMPORTANT OF MAINTAINANCE
The main important of regular
maintenance is to ensure that all equipment required for production is
operating at 100% efficiency at all times through short daily inspections,
cleaning, lubricating and making minor adjustments, minor problems can be
detected and corrected before they become a major problem that can shutdown a
production line. A good maintenance program requires company-wide participation
and support by everyone ranging from the executive to the shop floor personnel.
1.3 SCOPE
OF MAINTENANCE
Many steps can be taken to ensure that the
aims and objectives of maintenance is achieved, but only a few of these will be
mentioned which are as follows;
i.
Improvement of the quality of equipment and components
through improved design and/or tighter manufacturing standards.
ii.
Improvements in the design of equipment to facilitate the
replacement of broken items and inspection and underneath equipments.
iii.
Improvements in the layout of equipment to facilitate
maintenance work i.e providing space around or underneath equipments.
iv.
Providing slack in the operating system, i.e providing
excess capacity so that the failure of equipment does not affect the
performance of other equipment.
v.
Using work in progress to ensure that the failure of
equipment is not immediately reflected in a shortage of materials or parts for
a subsequent piece of equipment.
vi.
Establishing a repair facility so that through speedy
replacement of broken parts, equipment down time is reduced.
vii.
Undertaking preventive
maintenance, which through regular inspection and or replacement of
critical parts, reduces the occurrences of breakdowns.