Why
plan? Why schedule?
by Arne Oas
At the initial sale
or installation of a Computerized Maintenance Management System
(CMMS), vendors invariably estimate substantial returns on investment.
This will often prompt customers to respond, “How can you make
claims that my maintenance department will improve so dramatically? My
people are too busy now to do any more work!”
In an effort to
explain the real or perceived chasm between the two sides, the chart
on this page should be cited to reveal the areas of lost maintenance
time and how those areas impact an average worker.
Most studies over the
last 20 years have confirmed, and most consultants would agree, that
the average maintenance worker only spends 30 percent of his or her
time in actual “wrench-turning” capacities. I believe that this is
a fair portrait of an average worker’s year.
Poor utilization of a
maintenance worker’s time is usually not his or her fault. Nothing
is more detrimental to maintenance performance and morale than poorly
planned jobs. Properly planned maintenance reduces the wait and delay
times that maintenance workers encounter when doing unplanned work.
But what does the
chart really mean? An eight-hour day is 480 minutes. Thirty percent of
that is less than 150 minutes. I firmly believe that these 150 minutes
are the key to understanding performance management and almost all of
the associated promises of CMMS-related maintenance productivity
improvement.
Think about it. To
achieve a 10 percent increase in productivity, all you need to do is
give each worker 15 more wrench-turning-time minutes a day!
If you could do any
of the following, do you think you could add the 15 minutes?
•
Properly identify preventive maintenance and repair work, and allow
coordination with production before the work is scheduled. In
addition, use the CMMS to provide a listing of all materials needed
and major tools required before a worker leaves for a job. Proper
planning gives the workers all the information about their work, tool
and material requirements for the day. This reduces production wait
time, material drawing time, job preparation time and travel time.
•
Use the CMMS to collectively pre-sort work by location, cost centers,
departments and skill requirements. This permits all work in an area
to be scheduled for maintenance as a group. It also reduces the travel
time spent going back and forth to do jobs.
•
Effectively schedule each day’s work (what can reasonably be
expected to be done) for each worker. This reduces slack time
associated with waiting for the next assignment and eliminates the
“fire-fighting” approach.
Does it work? Using a
supporting CMMS application with good planning and scheduling
techniques can help you achieve remarkable results in a six-month
period. I’ve seen it happen in numerous facilities. There, the total
work time available showed an average improvement of 46 percent.
I will provide more
information about “how” to improve and measure the results in my
upcoming MRO Coach columns.
| Lost time due to: |
Estimated hours |
Percent of year |
| Organizational-relate
losses: |
|
|
| Vacation,
sick days, personal time and holidays |
208 |
10 percent |
| Training |
40 |
2 percent |
| Administrative (time
cards, etc.) |
85 |
4 percent |
| Slack and personal
time (coffee breaks, restroom, waiting for production) |
500 |
24 percent |
| Subtotal |
833 |
40 percent |
| Task-related losses |
|
|
| Drawing material for
each job (waiting for parts) |
210 |
10 percent |
| Travel to and from
jobs or storeroom |
210 |
10 percent |
| Job preparation and
cleanup |
210 |
10 percent |
| Subtotal |
630 |
30 percent |
| Total lost time |
1,463 |
70 percent |
| Total maintenance time
available per year (without OT) |
2,080 |
100 percent |
| Total hours available
for actual work or wrench-turning activities (2,080 hours minus
1,463 hours) |
617 |
30 percent |
Arne
Oas is the senior maintenance consultant at Management Resources
Group. If you have a maintenance management software question, contact
Coach Oas at 215-918-2165, or e-mail oasa@mrginc.net.
This
article appeared in the December 2003/January 2004
issue
of
MRO Today magazine. Copyright 2003.
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