Total
Productive Maintenance in India
by:
Aniruddha Bhargava, Rama Shankar Bhargava
with
notes from Nand Kishore
The
Indian Industry is facing a severe global competition and hence many
companies are finding it very difficult to meet the bottom line.
The
past decade has transformed the definition of Market Price, which was based
on simple assumption under the monopolistic condition as given below:
Production
cost + Profit = Market price
However,
under the present scenario where all are facing the domestic/global
competition, the above definition does not hold good & simply got
transformed into:
Market
prices - Production Cost = Profit
Although
the above two equations mathematically look to be the same, the difference
is obvious as in the present scenario. The customer who has become quite
demanding with respect to cost, quality & variety determines the market
price. The current economic
environment automatically brings tremendous pressure on optimizing the
Production cost & for survival of the unit also.
TPM
meets the challenge & provides an effective program in terms of
increased plant efficiency & productivity.
TPM is
a means of creating a safe & participative work environment, in which
all employees target the elimination of all kinds of waste generated due to
equipment failure, frequent breakdowns, defective products including
rejections & rework. This leads to higher employee morale and greater
organizational profitability.
TPM
implementation is not a difficult task. However, it requires:
1.
Total commitment to the program by Top Management as it has to be TOP
DRIVEN to succeed.
2.
Total involvement & participation of all the employees.
3.
Attitudinal changes & paradigm shift towards job
responsibilities.
Steps
involved in effective implementation of
TPM are given briefly as follows:
1.
Appoint a committed & responsible coordinator who is well-versed
in TPM concept & able to convince the entire work force through an
educational program.
2.
Select a Model Cell or a Machine, which has the maximum potential for
improvement in respect of optimizing the profits. Such a model cell or
machine will have the maximum problems in respect of
·
Product quality
·
Equipment
failure & frequent breakdowns
·
Unsafe
conditions causing safety hazards
3.
The TPM coordinator will head a small team comprising of the
concerned persons of selected model cell or machine & would initiate the
TPM program by first recording meticulously & observing fullest
transparency of the problematic areas in respect of product defects,
equipment breakdown data & number of accidents from the past data, if
available. However, if the reliable data is not available, the same will
have to be built up for the purpose of ‘benchmarking’ & keeping the
records of progress & scheduling the improvements (target) within the
time period.
4.
The TPM coordinator would encourage the Team member to initiate the
TPM through Initial Cleaning of the machines taken as a Model for
improvement. Initial Cleaning is done to remove ‘shortcomings’ or
defects developed over the years, which have remained unnoticed.
5.
Initial Cleaning activities include removing dust, dirt, fluff etc.
Through this process, improper conditions of the machine get detected in the
form of:
-
Inaccuracies leading to defects in
regard to quality
-
Defective
parts/components leading to the development of defects in the machine
-
Detection
of excessive wear & tear in the moving parts of the machine leading
to production of defective parts.
-
Motion
resistance observed due to foreign matters found in moving parts of the
machine.
-
Detection
of defects like loose fasteners, scratches, deformation & leakage
etc., remaining invisible in dirty equipment.
The
initial cleaning leads to Inspection which in turn helps in detecting the
ABNORMALITIES in the equipment gathered over the years causing quality
defects, equipment failures, & safety hazards.
The
Action Teams would be responsible to ascertain the problem areas,
determining the sources of generation of abnormalities& those causing
forced deterioration. Through deliberation of various techniques the team
would detail out a course of corrective action and implementing the
corrective process. It is quite possible that in the beginning recognizing
problem areas & determining the counter measures eliminating the sources
of error, the team members may not find easy. They have to continue their
thinking creatively that things could be done better.
The
writer has a rich & successful experience of implementing the TPM
systems in an Automobile Company & Pressure Die-Casting company. The
successful implementation has brought very encouraging results, which are
summarized as below.
Pressure
die casting Company:
For
this company one 660 T HMT m/c was selected for developing it as a Model
Cell. The m/c was studied & evaluated critically in depth by the team.
The team decided to set first objective as to achieve ‘ Delightful Working
Environment ’which is a pre-requisite to the introduction of practices of
TPM.
The
team identified 14 cause factors responsible for the present condition of
the m/c & coming in the way of achieving the ‘DWE’, the first
objective.
These
cause factors were analyzed & improvement themes were developed such as
counter measures to dust & dirt, difficult to clean & non accessible
areas, counter measures to leakages, flash & water spray, die coat spray
etc. Implementation of solutions resulted into the following major
achievements:
-
Delightful working environment
-
Productivity
improvement by 20%
-
Metal
saving through elimination of flash & coil formation during each
stroke.
Similar
achievements resulted in the Automobile Company also in the form of
-
Breakdown
reduction
-
Defects
reduction
-
Space
saving
-
Productivity
improvement
To
make these achievements sustainable a very important aspect of TPM is the
establishment of Autonomous Maintenance. The
purpose of autonomous inspection is to teach operators how to maintain their
equipment by performing daily the following in not more than 15 minutes
& thus developing an ‘ownership of the machine’:
Ø Early
detection of abnormal condition of the machine through sound, temperature
& vibration.
In
the current Industrial scenario, TPM may be one of the only concepts that
stand between success and total failure for some organizations. It is a
program that works if it is implemented effectively with all sincerity &
dedicated efforts of participative team.
PLEASE
SEE UPDATES BELOW...
This
article is being shared by its author:
Rama Shanker Bhargava
(Mechanical) University of Roorkee.
M.Tech (Industrial Eng. & Management)
I.I.T. Madras
Former Dy. General Manager (Quality Control)
Bajaj Auto Ltd., Pune
TPMonLine
has considered its publication as a value added and reaffirmation to
our concepts.
Thank
you, Rama Shanker Bhargava |
To:
mickey@pn2.vsnl.net.in
Cc:
plantmaint@plant-maintenance.com ; tpmonline@yahoogroups.com
Sent:
Friday, November 08, 2002 12:03 PM
Subject: Article on TPM in India
For attention: Mr. Aniruddha Bhargava/Mr. Rama Shankar Bhargava.
Let
me congratulate you first for the interesting article regarding TPM in
India. I do have some few questions and would be happy to have you respond:
1.
Was it only a pilot project or extended to the whole company subsequently?
The results given were for a typical machine only.Which are the other
machines included?
2.
How much was the time required for this one machine only? When was it
concluded that the TPM objectives have been met for this machine?
3.
How much effect this had on the saving in Maintenance time?
4.
In which automobile company was this study extended? What are the results in
so far as saving in productivity, maintenance downtime etc . How much time
has it taken?
I
would be interested to continue a dialogue with you, being interested in the
area of TPM.
With
best wishes,
N.K.Agarwal,
India.
From:
"Aniruddha Bhargava" <mickey@pn2.vsnl.net.in>
Date:
Sat Nov 9, 2002 8:43 am
Subject:
Re: Article on TPM in india
Dear Mr. Nand Kishore,
Thankyou very much for the interest shown in the article published by
Mora Consultants on www.tpmonline.com
TPM implementation was done at two units namely
1. Anurang Engg., Pune
Pressure Die Casting Vendor- Bajaj Auto Ltd., PUNE
At Anurang Engg., only Pilot Project was taken on 660 T HMT m/c
Time taken: 2 months - 14 visits were made
Constraint : Mind set
"Being a PDC foundry Machine
Surroundings & Floor can not remain clean as it involves working constantly with water, Aluminium
flash. Hot metal & oil ( Die Coat )"
To change the mind set following strategy was adopted:
Surroundings:
Wet to Dry
Floor: Unclean
to clean
Machine: Dirty
to Pretty
Initial Cleaning: Jishu Hozen
1st step
Benefits: Already narrated in
the article
No of Kaizens so far: 14
Full Objective: Not yet met
2. Maharashtra Scooters Limited , Satara
Unit of Bajaj auto Ltd ,
Pune
Here 10 model cells were created in each department to cover the entire organization.
Time Taken: 13 months
Implementation: Introduced '5S'
concept & TPM systems through conducting training & education &
implemented in all departments in selected MODEL CELL through full participation and involvement
of concerned workmen and technical staff of the cell.
Benefits:
Breakdown reduction
Defects reduction
WIP
reduction
Space
saving
Productivity Improvement
Noise pollution reduced
Confidence & Morale of staff enhanced as their equipment became reliable
and less prone to breakdowns.
Full Objectives of TPM: Partially met as the cultural change
takes 3 to 5 years
I hope I have clarified to my best of abilities. Should you require
any other clarification please do not hesitate to write to me.
Thank you for your searching questions.
Regards,
R.S.Bhargava