DCC50252- Notes

Ch.5.0 StDaitdeributitDamkiakkneri:mkuMaunsatktriun1sih1p: ,1e2k2s0:e31if6r0iaPk1nM1a:as34idAiMbina

08/27

Factors Cause Of Building Deterioration

Human Faulty design

Chemical Faulty construction

Atmospheric Faulty material

Moisture Vandalism
Fire

Ch.5.0 09/27

5.1.1 Maintenance is carried out to keep
Basic concept of all facilities in an acceptable
maintenance condition
works The facilities includes outside and
inside the building (electricity and
Ch.5.0 water supply)
Acceptable condition means that
the facilities are ready for use after
repair.
BS38811 defined maintenance as all
technical and administrative
measures taken to preserve or
improve the things that matter to
fulfil its intended function.

10/27

Maintenance work is divided into two main process as follows:

PRESERVATION REPAIR

work done to maintain things work done to repair the
(buildings / equipment / damage done to a certain
installation) in order to fulfill thing (building /equipment/
the required functions installation) back to its
original condition to meet the
required function.

Ch.5.0 11/27

OBJECTIVE OF 12/27
MAINTENANCE

Maximizing production or increasing facilities
Availability at the lowest cost and at the
highest
Quality and safety standards.
Reducing breakdown and emergency
shutdowns.
Improving equipment efficiency and reducing
scrap rate.
Minimizing energy usage.
Optimizing the useful life of equipment.
Providing reliable cost and budgetary control.
Identifying and implementing cost reductions

Ch.5.0

REQUIREMENTS OF 13/27
BUILDING

MAINTENANCE WORKS

1.To maintain the investment value of the building.
Example, if a building constructed at RM70,000,
10 years later, the value of the building will be
dropped. But by doing maintenance work, the
building will remain or more.

2.Ensure that the building be able to function
properly.

3.Ensure that the buildings look beautiful and
attractive.

Ch.5.0

EFFECTIVENESS OF 14/27
MAINTENANCE WORK

Effectiveness of maintenance work covers many aspect
of with the need for various skills, including:

Technical knowledge and experience
to determine maintenance needs
Determine the proper solution
method

Ch.5.0

5.1.2. TYPES OF MAINTENANCE

PLANNED UNPLANNED EMERGENCY

Proactive approach to Maintenance tasks that Maintenance that need
maintenance that focuses on you do not plan in immediate action to avoid
minimizing the downtime and advance @ no
serious consequence
costs associated with predetermined plan.
breakdowns.

PLANNED PLANNED REACTIVE CORRECTIVE
PREVENTIVE UNSCHEDULED MAINTENANCE MAINTENANCE
MAINTENANCE MAINTENANCE
OPPORTUNISTIC
Ch.5.0 MAINTENANCE

15/27

5.1.3 Maintenance scheduling refers to the timing of
Maintenance planned work, when the work should be done
Schedule and who should perform it. It offers details of
"when" and "who." Scheduling is meant to:

Schedule the maximum amount of work
with the available resources
Schedule according to the highest priority
work orders
Schedule the maximum number of
preventive maintenance jobs when
necessary
Minimize the use of contract and outside
resources by effectively using internal labor

Ch.5.0 16/27

MAINTENANCE SCHEDULE 17/27
PRINCIPLES

1.Job plans are needed for scheduling
Job plans should include the number of
technicians required, the minimum skill
level, work hours per skill level and
information on job duration

2.Schedules and job priorities are important
The weekly schedule and the priorities that
help determine this schedule are essential
to improving productivity

Ch.5.0

MAINTENANCE SCHEDULE 18/27
PRINCIPLES

3. Schedule based on the projected highest skills available
Should develop a one-week schedule for each
crew based on the available technician hours, the
highest skill levels available, job priorities and
details from the job plan

4. Schedule for every available work hour
The scheduler should assign work plans for the
technicians to complete a task during the
following week for 100 % of the forecasted hours

Ch.5.0

MAINTENANCE SCHEDULE 19/27
PRINCIPLES

5. Daily work is handled by the crew leader
The crew leader or supervisor should develop
a daily schedule based on the one-week
schedule, current job progress and any new
high-priority jobs that may arise

6. Measure performance with schedule compliance
Scheduling success is measured by the
adherence to the one-week schedule and its
effectiveness

Ch.5.0

SAMPLE MAINTENANCE SCHEDULE

MAINTENANCE TASK DAILY WEEKLY MONTHLY QUATERLY

Inspection x




- Building Interior
- Building Exterior x x






Electrical services & appliances


x


Fire Protection system & appliances


x


Water supply system
x




Building Transportation system


x


Sewerage system

Ch.5.0 20/27

5.2 01 Identify the preventive and
corrective maintenance

Explain the 02 Differentiate between the
maintenance corrective and preventive
work in building maintenance

03 Explain the advantage of
corrective and preventive
maintenance

Ch.5.0 21/27

PREVENTIVE MAINTENANCE 22/27

The maintenance carried out at predetermined interval
or corresponding to prescribed criteria and intended to
reduce the probability of failure or the performance
degradation of an item

4 Primary Types of Preventive Maintenance:-
a.Periodic Maintenance
b.Meter-Based Maintenance
c.Predictive Maintenance
d.Prescriptive Maintenance

Ch.5.0

CORRECTIVE MAINTENANCE 23/27

The maintenance carried out after a failure has occurred and
intended to restore an item to a state in which it can perform
its required function

FIVE (5) classification of corrective maintenance:-
a.Fail Repair: Restoring a failed asset to its operational state
b.Overhaul: Restoring an asset to its complete service state as
outlined by maintenance serviceability standards. Here assets
are only inspected and repaired as appropriate
c.Salvage: Disposing nonrepairable materials and utilizing
salvaged materials from irreparable assets.
d.Servicing: Fixing after corrective action is taken. For
example, welding or refilling crankcases after engine repairs
e.Rebuild: Restoring an asset as closely as possible to original
standards in terms of performance, appearance, and life
expectancy

Ch.5.0

PREVENTIVE VS. CORRECTIVE

ITEM PREVENTIVE MAINTENANCE CORRECTIVE MAINTENANCE

Performing PM is performed before asset failure or before anything CM is performed after asset failure or after anything
goes wrong. goes wrong.

Complexity It is more complex as compared to CM because it involves It is less complex and simple process because it does
planning to prevent assets from failure. not involve any planning to prevent asset from failure.

Cost It can be expensive but it prevents assets from failure. It can be more expensive than PM as some equipment
failure causes greater damage to system.

Failure It prevents loss in production by reducing chances of It can affect overall system as some assets failure can
Occurrence failure occurrence cause greater loss in production.

Life cycle PM overall increases life cycle of assets. CM overall decreases lifecycle of assets.

Employees It requires a smaller number of employees or technicians It requires a greater number of employees or
to perform PM technicians to perform CM.
Ch.5.0
24/27

PREVENTIVE MAINTENANCE DISADVANTAGES

ADVANTAGES

Equipment's downtime is decrease and the number of Upfront costs - keeping equipment well-maintained
major repairs are reduced requires investment

Better conservation of assets and increased life More labor-intensive, so you'll need more staff on
expectancy of assets, thereby eliminating premature hand

replacement of machinery and equipment.

Reduced overtime costs and more economical use of Potential for over-maintenance
maintanance workers due to working on a scheduled

basis instead of a crash basis to repair breakdown

Timely, routine repairs circumvent fewer large-scale

repairs.

Improved safety and quality conditions for everyone.


Ch.5.0 25/27

CORRECTIVE MAINTENANCE DISADVANTAGES

ADVANTAGES

It increases the efficiency and speed of equipment Interruptions - Increased unplanned downtime is significant. For critical equipment,
downtime will halt production. Corrective maintenance has no way to anticipate and

plan around potential failure.

It conserves the energy and life of the equipment, as it is less Unpredictable - Critical assets can break down when they’re most needed (re. Murphy's Law).
taxing if it goes through regular maintenance programs Unless a large, expensive, spares inventory is maintained a failure could result in a machine
being offline for months whilst a part is on back-order.

Helps to avoid the replacing of the parts of the equipment before Higher long-term costs - Interruptions will lead to your organization’s operational costs
the schedule time. spiralling out of control, a shortening of the lifespan of machinery, fulfilment issues,
reputation damage and huge inefficiencies if you only fix machinery when it breaks.

Reduce the cost when the work done is faster and the machine doesn’t break

down in the middle of the work schedule, thus increasing the wages

It save you from spending too much when the machine breaks down

completely and requires a big time repair or a replacement. It helps to

truncate the problem at the bud

Saves your time since you need not face the breakdown time to get the

machine back in shape. The procedures take lesser time then proper repairs 26/27

Ch.5.0

Thank you

Ch.5.0 27/27