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TUTORIAL REPORT PHYSIOLOGY AND WORK MEASUREMENT MICROMOTION STUDY

Group

: IPB-2

Tutorial Date

:

14/12/2017

Name / NIM

: Nazila Syarafina /

Tutorial Day

:

Thursday

Submission

:

21/12/2017

16522201 Dean Tirkaamiana / 16522249 Class

: IP B

Assistant

: E-110

Yogyakarta, 16th December 2017

Scoring Criteria Report Format

:

Calculation

:

Analysis

:

Recommendation

:

TOTAL

:

Assistant

(M. Nashirulhaqi I.)

WORK SYSTEM DESIGN AND ERGONOMIC LABORATORY INDUSTRIAL ENGINEERING DEPARTEMENT FACULTY OF INDUSTRIAL TECHNOLOGY UNIVERSITAS ISLAM INDONESIA 2017 CHAPTER VIII METHOD TIME MEASUREMENT

8.1 Objectives 1. Introducing method of Method Time Measurement in time mesurment in the application of standard time measurement by analyzing the elements of the working movement. 2. Students able to identify the elements of movement in assembly process 3. Students able to optimize the movement in assembly process. 4. Students able to calculate the standard time by studying the elements of the movement with the help of movie footage. 8.2 Tutorial Task The operator was put in some beads to the thread of bracelet making with certain pattern. Two trays was put in front of operator as far as 30 cm. Two white breads are starting and ending string and then yellow, pink, blue, and black breads we repeat this sequence for three times. We made two layout, first is initial layout and recommendation layout. We recorded the activation and we analyse the working element. 8.3 Literature Review Table 1. Literature Review No

Title

Method

Result

Conclusion

. 1.

Methodology

The initiation of The MTM method As one of the strategies of

Selecting Work timing a job should is suitable method choosing

work

Time

be the decision of for measuring one measurement

Measurement

the

Methods: Guide

time method,

enterprise person can carry rapid and comprehensive

A manager,

because out measurement of model of selecting work

Model the timing process up

to

six time

measurement

for

is not an easy issue workstations,

method

Maintenance

according to each obtaining

highlighted. Each activity

time measurement standardized tool.

So

getting consumption

standard time for a logical particular

time is

have

performed

in particular

been in

context

a and

sequence, condition and need to be

task and could not use study

carefully

should be well – for random nature deciding

before which

defined and clear. of recording actual measurement tool should The

process times.

be

held

for

working

encompasses many

measurement process. So

factors that need a

a concise analysis of the

deep

analysis

at

major

each stage.

work

time

measurement

methods

has been illustrated and one can easily follow the proposed selection model in alignment with the proper work environment context, because there is no

standard

work

condition. This model is flexible according to the context. This is useful when job competitiveness is

in

sight

performance appreciated

so

that

can

be

for

better

scheduling

and

maintenance organization. It has also been observed that for a single activity more than one type of work time measurement method can 2.

Comparison of During

be used for timing. the MTM-1 method is Identified deviations

Time

21 more detailed when pointed out the necessity

experiment

Standardization assembly Methods on the workplaces

compared

with to widen the spectrum of

were BasicMOST.

The measurements in order to

Basis of Real compared. At all research has proven achieve

more

Experiment

In

these

workplaces that

the

time analyses with method

MTM-1 results. is

accurate

follow

up

more studies we must take into

MTM-1 as well as suitable for detailed account other methods with Basic MOST analysis of shorter like MTM-2 and Mini were

performed. operations

with MOST.

In

the

next

For comparison of durations of up to comparison

study

analyzed time with 10 seconds. In these deviations between those time measured in cases BasicMOST two methods as well as real

production does not achieve between

several verification the measurements

all

five

required mentioned

methods

accuracy. From the should be performed

according to REFA opposite point of methodology needed

view punctuality is

to

be one of the main

performed. At each disadvantages of

the

21 MTM-1

workplaces included

of when

compared in

with

the BasicMOST

comparison process regard

with

to

time

measurements were consumption. performed this

using research

method. shifts

different

showed

15 that analysis when

measurements two

The

in using

MTM-1

with produces

in

1

workers minute 7.8 TMU

were performed at while when using each workplace. 3.

BasicMOST it is

29.9 TMU training -Presentation

Teaching

The

Methods-Time

module

Measurement

incorporated in the -Critical reflection product creation process

(MTM) Workplace Design

will

of The

be each optimisation

for SLF in the first of semester

the

optimisation

use

application

Factories

Industrial

-Constructive

time

engineering

criticism

complicated,

course spans over a

the

intensive

for

The

along

in applications. As MTM

Learning

students.

year other solutions

MTM

own enables a multiple field of

in Ergonomics course comparision to the requires 4th

of

trainings and extensive studies

are many

companies avoid the use of

MTM.

Learning

5 months’ period

factories

and

possibility to focus on the

the

MTM

offer

the

training will form

“workplace-designing-

part

aspect” of MTM and

of

practical

training sessions to

make

be completed by

orientated

the

transfer

students

groups.

in

a

practiceknowledge-

possible.

The

time-frame of four hours is sufficient to get a basic understanding of MTM, which is helpful for the design of workplaces. For a further understanding, especially concerning the aspects

of

time-

management, which also plays an important role in industry,

a

complete

qualification in MTM is indispensable.

8.4 Output 8.4.1 Description Name

: Dean Tirkaamiana

Gender

: Female

Age

: 19

Job desc : put in some beads to the thread of bracelet making with certain pattern The sequence of part to make the bracelet are first put the white beads into the string, then repeat the order of yellow beads, red beads, blue beads, and black beads three times, and the last put another white beads and bind the string to finish up the bracelet. Objects in this micromotion study practicum are trays, yarns, beads, scissors, and gauges.

8.4.2 Initial Layout 8.4.2.1 Table Tabel 2. MTM-1 Table of Initial Layout No.

1.

Right Hand

Left Hand

Activity

Code

TMU

Reach the

R 18 C

18.4

G1B

3.5

M 18 C

20.4

TMU

Code

Activity

21.2

R 22 C

Reach the

string 2.

Grasp the string

3.

Move the string

4.

Move the

string M 16 A

16.0

5.6

G 1B

string to

Grasp the string

the left hand 5.

Turn the

TS 30O S

2.8

G 1B

3.5

string 30o 6.

Grasp the

2.8

TS 30O S

Turn the string 30o

string 7.

2.0

RL 1

Release the string

8.

21.2

R 22 C

Reach the string

9.

3.5

G 1B

Grasp the string

10.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the string 11.

Reach the string

12.

Grasp the

2.0

RL 1

string 13.

Turn the

Release the string

T 45o S

3.5

21.2

R 22 C

Reach the

string 45o

string

14.

3.5

G 1B

Grasp the string

15.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

T 45o S

3.5

the string 16.

Reach the string

17.

Grasp the string

18.

Turn the

2.0

RL 1

string 45o 19.

Turn the

string T 45o S

3.5

21.2

R 22 C

string 45o 20.

Turn the Release

T 45o S

3.5

RL 1

2.0

R 18 C

18.4

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

Reach the white beads

23.

Grasp the white beads

24.

Move the white beads

25.

the white beads 26.

Release the white beads

3.5

G 1B

Grasp the string

the string 22.

Reach the string

string 45o 21.

Release the

RL 1

2.0

27.

Reach the

R 22 C

21.2

G 1B

3.5

string 28.

Grasp the

2.0

RL 1

string

Release the string

29.

21.2

R 22 C

Reach the string

30.

Reach the

R 18 C

18.4

blue beads 31.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

Move the blue beads

33.

the blue beads 34.

Release

RL 1

2.0

R 18 C

18.4

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

the blue beads 35.

Reach the yellow beads

36.

Grasp the yellow beads

37.

Move the yellow beads

38.

the yellow beads 39.

Release the yellow

G 1B

Grasp the string

blue beads 32.

3.5

RL 1

2.0

beads 40.

Reach the

R 22 C

21.2

G 1B

3.5

string 41.

Grasp the

2.0

RL 1

string

Release the string

42.

21.2

R 22 C

Reach the string

43.

Reach the

R 18 C

18.4

3.5

G 1B

pink beads 44.

Grasp the

Grasp the string

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

pink beads 45.

Move the pink beads

46.

the pink beads 47.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the pink beads 48.

Reach the string

49.

Grasp the

2.0

RL 1

string

Release the string

50.

21.2

R 22 C

Reach the string

51.

Reach the

R 18 C

18.4

blue beads 52.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

Move the blue beads

54.

G 1B

Grasp the string

blue beads 53.

3.5

the blue beads 55.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the blue beads 56.

Reach the string

57.

Grasp the

2.0

RL 1

string

Release the string

58.

21.2

R 22 C

Reach the string

59.

Reach the

R 18 C

18.4

3.5

G 1B

black

Grasp the string

beads 60.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

black beads 61.

Move the black beads

62.

the black beads 63.

Release

RL 1

2.0

R 22 C

21.2

the black beads 64.

Reach the string

65.

Grasp the

G 1B

2.0

RL 1

string 66.

Release the string

21.2

R 22 C

Reach the string

67.

Reach the

R 18 C

18.4

3.5

G 1B

yellow

Grasp the string

beads 68.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

yellow beads 69.

Move the yellow beads

70.

the yellow beads 71.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the yellow beads 72.

Reach the string

73.

Grasp the

2.0

RL 1

string

Release the string

74.

21.2

R 22 C

Reach the string

75.

Reach the

R 18 C

18.4

pink beads 76.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

Move the pink beads

78.

the pink beads 79.

Release the pink

G 1B

Grasp the string

pink beads 77.

3.5

RL 1

2.0

beads 80.

Reach the

R 22 C

21.2

G 1B

3.5

string 81.

Grasp the

2.0

RL 1

string

Release the string

82.

21.2

R 22 C

Reach the string

83.

Reach the

R 18 C

18.4

3.5

G 1B

blue beads 84.

Grasp the

Grasp the string

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

blue beads 85.

Move the blue beads

86.

the blue beads 87.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the blue beads 88.

Reach the string

89.

Grasp the

2.0

RL 1

string

Release the string

90.

21.2

R 22 C

Reach the string

91.

Reach the

R 18 C

18.4

black Grasp the

G 1B

3.5

M 18 C

20.4

black beads 93.

Move the

G 1B

Grasp the string

beads 92.

3.5

black beads 94.

Positioning P1SSD

14.7

the black beads 95.

Release

RL 1

2.0

R 22 C

21.2

the black beads 96.

Reach the string

97.

Grasp the

G 1B

2.0

RL 1

string

Release the string

98.

21.2

R 22 C

Reach the string

99.

Reach the

R 18 C

18.4

3.5

G 1B

yellow

Grasp the string

beads 100. Grasp the

G 1B

3.5

M 18 C

20.4

102. Positioning P1SSD

14.7

yellow beads 101. Move the yellow beads the yellow beads 103. Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the yellow beads 104. Reach the string 105. Grasp the

2.0

RL 1

Release the

string

string

106.

21.2

R 22 C

Reach the string

107. Reach the

R 18 C

18.4

3.5

G 1B

pink beads 108. Grasp the

Grasp the string

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

pink beads 109. Move the pink beads 110.

the pink beads 111.

Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the pink beads 112.

Reach the string

113.

Grasp the

2.0

RL 1

string

Release the string

114.

21.2

R 22 C

Reach the string

115.

Reach the

R 18 C

18.4

blue beads 116.

Grasp the

G 1B

3.5

M 18 C

20.4

Positioning P1SSD

14.7

Move the blue beads

118.

the blue beads 119.

Release the blue

G 1B

Grasp the string

blue beads 117.

3.5

RL 1

2.0

beads 120. Reach the

R 22 C

21.2

G 1B

3.5

string 121. Grasp the

2.0

RL 1

string

Release the string

122.

21.2

R 22 C

Reach the string

123. Reach the

R 18 C

18.4

3.5

G 1B

black

Grasp the string

beads 124. Grasp the

G 1B

3.5

M 18 C

20.4

126. Positioning P1SSD

14.7

black beads 125. Move the black beads the black beads 127. Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the black beads 128. Reach the string 129. Grasp the

2.0

RL 1

string

Release the string

130.

21.2

R 22 C

Reach the string

131.

3.5

G 1B

Grasp the string

132. Release the string

RL 1

2.0

133. Reach the

R 22 C

21.2

G 1B

3.5

135. Turn 30O

TS 30O S

2.8

136. Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

TS 45O S

3.5

RL 1

2.0

R 22 C

21.2

G 1B

3.5

string 134. Grasp the string

the string 137. Reach the string 138. Grasp the string 139. Turn 45o the string 140. Release the string 141. Reach the string 142. Grasp the string 143.

21.2

R 22 C

Reach the string

144.

3.5

G 1B

Grasp the string

145. Release

RL 1

2.0

R 22 C

21.2

G 1B

3.5

TS 30O S

2.8

RL 1

2.0

the string 146. Reach the string 147. Grasp the string 148. Turn 30O the string 149. Release

the string 150. Reach the

R 22 C

21.2

G 1B

3.5

TS 45O S

3.5

string 151. Grasp the string 152. Turn 45o

TS 45O S

3.5

the string 153. Release

Turn 45o the string

RL 1

2.0

R 22 C

21.2

G 1B

3.5

the string 154. Reach the string 155. Grasp the string 156.

2.0

RL 1

Release the string

157.

21.2

R 22 C

Reach the string

158.

3.5

G 1B

Grasp the string

159.

2.0

RL 1

Release the string

160. Release

RL 1

2.0

the string TOTAL

1855.3

8.4.2.2 Standard Time Total TMU : 1855.3 TMU Standard Time : 1855.3 TMU x 0.0006 minutes = 1.11318 minutes 8.4.3 Recommendation Layout 8.4.3.1 Table Table 3. MTM-1 Table of Recommendation Layout No 1 2

Right Hand Activity Reach the string Grasp the string

Code R9A G1B

TMU 8.3 3.5

Left Hand TMU Code

Activity

8.3

Reach the string

R9A

3 4 5 6

Move the string

Positioning

M9A

the P1SSE

10.5

9.1

3.5 10.5 9.4 2.0

G1B M9A TS180o RL1

Grasp the string Move the string Turn the string Release the string

8.3 3.5 10.5 18.8

R9A G1B M9A TS180o

Reach the string Grasp the string Move the string Turn the string

string 7 8 9 10

180o 2 times 11

Apply pressure to AF

3.4

12 13 14 15 16

the string Reach the string Grasp the string Move the string Release the string Reach the first white

8.3 3.5 12.7 2.0 12.2

17

beads Grasp the first white G1C3

10.8

18

beads Move the first white M9C

12.7

19

beads Positioning the first P1SSD

14.7

20

white beads Release the

2.0

21 22 23 24 25

white beads Reach the string Grasp the string

R9A G1B M9C RL1 R9C

first RL1 R9C G1C3

12.2 3.5

Release the string RL1 Reach the first R9C

2.0 12.2

26

yellow beads Grasp the

first G1C3

10.8

27

yellow beads Move the

first M9C

12.7

28

yellow beads Positioning the first P1SSD

14.7

29

yellow beads Release the

2.0

30 31

yellow beads Reach the string Grasp the string

first RL1 R9C G1B

12.2 3.5

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0

RL1

Release the string

32 33 34

Release the string RL1 Reach the first pink R9C

2.0 12.2

35

beads Grasp the first pink G1C3

10.8

36

beads Move the first pink M9C

12.7

37

beads Positioning the first P1SSD

14.7

38

pink beads Release the

2.0

39 40 41 42 43

pink beads Reach the string Grasp the string

first RL1 R9C G1B

12.2 3.5

Release the string RL1 Reach the first blue R9C

2.0 12.2

44

beads Grasp the first blue G1C3

10.8

45

beads Move the first blue M9C

12.7

46

beads Positioning the first P1SSD

14.7

47

blue beads Release the first blue RL1

2.0

beads Reach the string Grasp the string

R9C G1B

12.2 3.5

Release the string RL1 Reach the first black R9C

2.0 12.2

53

beads Grasp the first black G1C3

10.8

54

beads Move the first black M9C

12.7

55

beads Positioning the first P1SSD

14.7

56

black beads Release the

2.0

57

black beads Reach the string

48 49 50 51 52

first RL1 R9C

12.2

8.3 3.5

R9A G1B

Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

58 59 60 61

Grasp the string

G1B

3.5

Release the string RL1 Reach the second R9C

2.0 12.2

62

yellow beads Grasp the second G1C3

10.8

63

yellow beads Move the second M9C

12.7

64

yellow beads Positioning

14.7

65

second yellow beads Release the second RL1

2.0

yellow beads Reach the string Grasp the string

R9C G1B

12.2 3.5

Release the string RL1 Reach the second R9C

2.0 12.2

71

pink beads Grasp the

second G1C3

10.8

72

pink beads Move the

second M9C

12.7

73

pink beads Positioning

74

second pink beads Release the second RL1

2.0

pink beads Reach the string Grasp the string

R9C G1B

12.2 3.5

Release the string RL1 Reach the second R9C

2.0 12.2

80

blue beads Grasp the

second G1C3

10.8

81

blue beads Move the

second M9C

12.7

82

blue beads Positioning

83

second blue beads Release the second RL1

66 67 68 69 70

75 76 77 78 79

blue beads

the P1SSD

the P1SSD

the P1SSD

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

14.7

14.7 2.0

84 85 86 87 88

R9C G1B

12.2 3.5

Release the string RL1 Reach the second R9C

2.0 12.2

89

black beads Grasp the second G1C3

10.8

90

black beads Move the second M9C

12.7

91

black beads Positioning

14.7

92

second black beads Release the second RL1

2.0

black beads Reach the string Grasp the string

R9C G1B

12.2 3.5

Release the string RL1 Reach the third R9C

2.0 12.2

98

yellow beads Grasp the

third G1C3

10.8

99

yellow beads Move the

third M9C

12.7

93 94 95 96 97

Reach the string Grasp the string

the P1SSD

yellow beads 100 Positioning the third P1SSD 101 102 103 104 105 106

yellow beads Release the yellow beads Reach the string Grasp the string

third RL1

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 12.2 3.5

Release the string RL1 Reach the third pink R9C

2.0 12.2 10.8

108

beads Move the third pink M9C

12.7

109

beads Positioning the third P1SSD

14.7

110

pink beads Release the

2.0

third RL1

RL1 R9A G1B

14.7

R9C G1B

beads 107 Grasp the third pink G1C3

2.0 8.3 3.5

pink beads 111 Reach the string 112 Grasp the string

R9C G1B

12.2 3.5

113 114 115

Release the string RL1 Reach the third blue R9C

2.0 12.2

116

beads Grasp the third blue G1C3

10.8

117

beads Move the third blue M9C

12.7

beads 118 Positioning the third P1SSD

14.7

blue beads 119 Release the

2.0

120 121 122 123 124

blue beads Reach the string Grasp the string

third RL1 R9C G1B

12.2 3.5

Release the string RL1 Reach the third R9C

2.0 12.2

black beads 125 Grasp the third black G1C3 beads Move the third black M9C

12.7

127

beads Positioning the third P1SSD

14.7

128

black beads Release the

2.0

black beads 129 Reach the string 130 Grasp the string

R9C G1B

12.2 3.5

131 130 131

Release the string RL1 Reach the second R9C

2.0 12.2

132

white beads Grasp the second G1C3

10.8

133

white beads Move the second M9C

12.7

white beads 134 Positioning 135

the P1SSD

second white beads Release the second RL1

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

10.8

126

third RL1

2.0 8.3 3.5

14.7 2.0

white beads 136 Reach the string 137 Grasp the string

R9C G1B

12.2 3.5

138 139 139 140 141 142

RL1 R9C G1B M9C P1SSE

2.0 12.2 3.5 12.7 9.1

Release the string Reach the string Grasp the string Move the string Positioning the

2.0 8.3 3.5

RL1 R9A G1B

Release the string Reach the string Grasp the string

5.4 12.7

TS90o M9C

Turn the string 90o Move the string

18.8

TS180o2

Turn

M9C RL1

180o 2 times Move the string Release the string

string 143 144 145 146 147 148 149 150

Move the string Turn the string 180o Release the string Reach the string Grasp the string Move the string Positioning the

M9C TS180 RL1 R9C G1B M9C P1SSE

12.7 9.4 2.0 12.2 3.5 12.7 9.1

string 151 152 153

Move the string Release the string TOTAL

M9C RL1

12.7 2.0

12.7 2.0

the

string

1383.7

8.4.3.3. Standard Time Total TMU

: 1383.7

Standard Time : 1383.7 TMU x 0.0006 minutes = 0.83022 minutes 8.4.4 Saving Time Standard time initial method

: 1.11318 minutes

Standard time recommended method

: 0.83022 minutes

The calculation of percentage of savings in time is based on the formulation: Saving Time = =

Time ∈initial layout−Time∈recomendation layout Time∈initial layout

x 100%

1.11318 minutes−0.83022 minutes x 100% 1.11318 minutes

= 32 % So, the saving time is 32%, means that the later process of assembly is more efficient or faster than the previous one. 8.4.5 Standard Time Analysis

Based on the data that already taken by assembling the bracelet, with initial and recommendation layout for the activity, it can be seen that the activity of assembling using the recommendation layout is faster than the activity using the initial layout. The researcher got the standard time of initial activity is 1.11318 minutes and recommendation activity is 0.75768 minutes. From this calculation, we can conclude that the recommendation workstation is more efficient than the initial workstation. Though the distance between the worker and the components in initial workstation is too far, and not confident for the operator. The operator found the difficulty to assembly the bracelet based on the initial layout because the place of component is like not neat, with the recommended layout, the arrangement of the component is good, with the steps that the operator must do it, it was getting easy to assembly the bracelet. Thus, the standard time is faster in the recommended workstation. Here is the difference between the initial and recommendation layout :

Figure 1. Initial prefix Layout

Figure 2. Recommendation prefix Layout

8.4.6 Saving Time Analysis Based on the calculation of saving in time percentage, the result obtained is 32%. It means that the process of assembly is faster and more efficient if it is done by the activity with the second layout, because it can save 32% of time. This result is influenced by several factors. First factor is the arrangement of bracelet components. In the initial workstation layout, the components are arranged in jumble order, so the operator was confused and found little bit difficulty with which component that should be assembled first, so she need more time to think, it is quite wasting time. However, for the recommendation layout the operator

already know well the place of bracelet components. So, the operator can easily assembly the bracelet. The operator did not waste time in choosing the component based on the order and she can save 32% time. 8.4.7 Conclusion From the MTM table above, we can see that the total motion in recommended workstation is less than the total motion in initial workstation although the difference is only 2 which are the distance of every layout and the arrangement of each components. It also has the difference on the standard time, the standard time of initial activity is 1.11318 minutes and the standard time of recommendation activity is 0.75768 minutes. This means in the recommended layout can help the operator easily to assembly the bracelet, because it is arranged in order which make the assembling activity become effective, but in the first layout is jumble arrangement which make the difficulty to assembly. Also, the distance of the layout is 23 cm shorter than the initial. With the recommended time, it also can save the time until 32%, so it is more efficient. So, to simply sum up all this conclusion, the recommended layout of workstation has good arrangement and more efficient for the operator to assembly the components of bracelet than the initial one.

REFERENCES

Bures, M., & Pivodova, P. 2015. Comparison of Time Standardization Methods on the Basis of Real Experiment. Procedia Engineering. 100 : 466 – 474. Morlock, F., Kreggenfeld. N., Louw, L., Kreimeier, D., & Kuhlenkötter, B. 2017. Teaching Methods-Time Measurement (MTM) for Workplace Design in Learning Factories. Procedia Manufacturing. 9 :369 – 375. Samon, J., B., Nzie, W., & Djeumako, B. 2014. Methodology Selecting Work Time Measurement Methods: A Guide Model for Maintenance. International Journal of Engineering Research & Technology. 3(8) : 1693 – 1698.

ATTACHMENT

Figure 3. Initial Prefix Layout

Figure 4. Finished Prefix Layout

Figure 5. Initial Proposal Layout

Figure 6. Finished Proposal Layout

Figure 7. Prefix Layout Result

Figure 8. Proposal Layout Result