This presentation is about the implementation of the 7 quality control tools on the automobile sector in INDIA.

1. -by RUDRA PRATAP
PRAMANIK
(1804122)

2. BACKGROUND
&
IMPORTANCE
The 7 QC tools are simple statistical tools used for problem solving. These
tools were either developed in Japan or introduced to Japan by the Quality
Gurus such as Deming and Juran. Kaoru Ishikawa has stated that these 7 tools
can be used to solve 95% of all problems. The 7 Tools of Quality is a
designation given to a fixed set of graphical techniques identified as being
most helpful in troubleshooting issues related to quality. They are used to
analyze the production process, identify the major problems, control
fluctuations of product quality, and provide solutions to avoid future defects.

3. WHY THE 7QC Tools?
• Improve Quality
• Decrease Costs
• Improve Productivity
• Decrease Price
• Increase Market
• Stay in Business
• Provide More Jobs
• Return on Investment

4. 7 QUALITY CONTROL TOOLS
1. Check Sheet
2. Flowcharts
3. Pareto chart
4. Scatter Diagram
5. Histogram
6. Control chart
7. Cause & effect
diagram

5. SWIFT DZIRE (MARUTI SUZUKI)
The automobile industry under consideration is one of the biggest
automobile industries in the world. The particular plant in which study
was conducted is situated in Chennai- southern part of the India.
It manufactures automobiles in the category of passenger vehicles.
Chennai is home to around 35–40% of India's total automobile
industry. The Maruti Suzuki Dzire is produced and exported to
international markets from India.
The dealers of the company’s cars used to replace the defected fuel
pump in customers’ cars with the new one. The defected fuel pumps
were then received back at the plant for analysis purpose.

6. ANALYSIS
In this research, the root cause analysis of the problems in
the fuel pump has been conducted. The quality issues are
identified after the voice of customers is noted, which is
nothing but a feedback of the problem from the customers.
Fuel pump is an automobile component that pumps the liquid
fuel to fuel injection system of the engine from the fuel tank.
It pushes or pumps fuel from the gas tank to the fuel injector
or carburetor. It creates the adequate amount of pressure to
ensure that the required amount of fuel shall be supplied to
the engine, regardless of external conditions. 47 numbers of
fuel pumps were received back from the dealers in February
2016 ; which were still in warranty period. The data regarding
the quality issues were then gathered through Voice of
customers. An analysis of those 47 fuel pumps was performed
in the plant, using various quality control tools, including
Cause-Effect diagram, Checksheet, Pareto analysis and
presented in the following section
Fuel pump delivery system

7. Fish-Bone Diagram/Ishikawa Diagram
A fish bone diagram is presented in order to find the causes of the effect. In this
study, various men, materials, methods, equipments, environment causes have been
analyzed against the effect of defective fuel pumps and the resulting Ishikawa
diagram is shown.

8. Check Sheet
The number of occurrence of each effectin the fuel pumps i.e. the
frequency of defects is gathered and organized using the Check sheet.

9. Pareto Chart
The data obtained from the Check sheet was further employed for the
construction of Pareto Chart. Pareto analysis helped to identify and
prioritize two major defects-Positive Brush length shorter than
specification and Negative Brush length-shorter than specification,
contribute about 81% of the defective fuel pumps.
Percentage of the defects
Pareto Diagram for defects
analysis

10. RESULTS AND DISCUSSION
It was observed from the Fishbone diagram and Check sheet that brush length is
shorter than the specified, winding wire broken, over current drawn, winding wire
short circuit, soldering process missed and dust in the release valve are the main
causes for the defective Fuel pumps. Further, a Pareto analysis of these causes
identified from Cause-Effect relationship, the two major defects– ‘Positive brush
length’ and ‘negative brush length’ contributed to more than 80% of the total
returned and defected fuel pumps.
As a next step, the root causes of these two major defects were determined
through implementation of the 5 Why‟s tool. Low resistance of brush leading to
high arcing was identified as the root cause of positive brush length being shorter
than specified length and insufficient insulation of wire was identified as the root
cause of negative brush length being shorter than specified length.
The implementation of a preventive action shall definitely lead to reduce the
defects in fuel pumps which shall improve the product quality.

11. CONCLUSION
All manufacturing firms aim for the continuous improvement of the
products in order to provide complete customer satisfaction which
depends on an un-interrupted part functioning. Seven Quality Control
tools are important instruments in order to analyze defects in quality of
products of the organizations at customer operation levels. By
implementing these tools, manufacturing as well as service
organizations can clearly identify the ground reasons affecting their
quality levels and can take necessary steps to reduce the short-comings
and enhance their product or service quality.

12. REFERENCE
GOING
THROUGH THE
VARIOUS
STUDIES
CONDUCTED
TO THE POINT
INFORMATION
FOR MY
DATASET FROM
THE INTERNET
MY OWN
KNOWLEDGE AND
APPLICATION
MY PRESENTATION
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14. THANK YOU !!