TPM -THE IMPORTANCE OF MAINTENANCE ACTIVITIES HAS BEEN RECOGNIZED FOR CORPORATE SURVIVAL IN A COMPETITIVE SOCIETY,AND THE REVIEW OF OPERATORS ROLES AND MAINTENANCE ACTIVITIES HAS BECOME NECESSARY.

1. TPM-JISHU-HOZEN
ACTIVITIES
PLANNED MAINTENANCE
V SIVAKUMAR
69.sivakumar@gmail.com
9944363185

2. WHAT IS JISHU HOZEN?
“INDIVIUALLY PRESERVING ONE’S OWN
EQUIPMENT”
JISHU –HOZEN means that individual operators carry out routine
inspection,oiling,parts replacement,repair,early detection of
abnormalities, and precision checking of their own equipment
for the purpose of “PROTECTING THEIR OWN EQUIPEMNT”

3. NEED OF JISHU-HOZEN
As technology progresses, equipment has become increasingly
powerful and complicated ,and as companies become greater in
scale, maintenance functions are gradually diversifying. Operators
become preoccupied with production, while maintenance workers
focus solely on maintenance.

4. I MANUFACTURE ,YOU REPAIR
The concept “I manufacture, you repair” has spread throughout the
factory. Most of the factory staff have become “manufacturers", who
do only product assembly and quality checking, other activities
related to oiling, tightening, machine inspection, adjustment and
other works belongs to maintenance personnel.

5. INCORRECT THINKING
Operators in such factories feel that “FAILURES ARE THE FAULT OF
MAINTENANCE STAFF”, OR that failure was caused because the wrong
machines was installed, it has nothing to do with us". Such incorrect
thinking must be corrected. Many failures could have been prevented
if operators had performed some tightening,oiling,and cleaning.
Malfunctions occur that could have been avoided if operators had
touched or moved equipment, because they could have sensed
abnormalities then.

6. BECOMING EXPERT EQUIPMENT
OPERATORS
In order to implement JISHU –HOZEN, workers become “EXPERT
EQUIPMENT OPERATORS". Operators must become able to conduct
routine maintenance, such as cleaning ,oiling, and inspection, in
addition to the simple handling of machinery. The more automation
and shifting to robotism progresses, the greater that necessity
become.

7. BECOME EXPERT EQUIPMENT
OPERATOR
The greatest requirements for operators are ,first, to have the ability
to “DETECT ABNORMALITIES "and ,second, to acquire the ability to
“sense abnormalities” with regard to quality or equipment, based on a
feeling that “There is something wrong. "To this end, the following
three capabilities are necessary:
Capability of firmly setting criteria for
normality's/abnormalities(ability to set conditions)
Capability of abiding by condition-controlling rules(ability to observe
rules)
Capability of taking proper steps in the event of abnormalities(ability
to repair and handle properly)

8. BECOMING EXPERT EQUIPMENT
OPERATOR
Each operator must acquire the following specific ability:
Capability of finding and improving machine malfunctions.
Capability of understanding equipment structure /functions and
finding the cause classification of abnormalities.
Capability of understanding relations between equipment and quality,
predicting quality abnormalities, and finding cause classification.

9. CONCLUSION
Workers who can meet these conditions are rightly called expert
equipment operator's, who are able to find abnormalities in the cause
clasifications,sense probabilities of defect or failure ,and take steps
to prevent their occurrence.