CONTENTS
1. NEEDLES & THREADING THE MACHINE
1-1 Needles ···················································1
1-2 Replacing the needle ·································1
1-3 Threading the machine ·····························1
2. MACHINE SPEED
2-1 Machine speed & direction in which the machine
pulley runs ··············································2
2-2 Motor & belt ············································2
3. LUBRICATION
3-1 Oil ·························································3
3-2 Oiling ·····················································3
3-3 Replacing the oil and the oil element ···········3
4. SEWING MACHINE INSTALLATION
4-1 Machine head dimension ···························4
4-2 Installing the machine ······························4
4-3 Cutting the machine table···························5
5. TIMING OF THE LOOPER TO THE NEEDLES
5-1 Angle and height for installing the looper ····6
5-2 Looper left-to-right movement ····················6
5-3 Looper setting distance ·····························7
5-4 Needle height ··········································7
5-5 Needle/looper front-to-back relationship ······8
5-6 Changing the looper orbit ··························8
5-7 Changing the amount of the looper front-to-back
movement ···············································9
6. FRONT AND REAR NEEDLE GUARDS
6-1 Position of the needle guard (rear) ··············9
6-2 Position of the needle guard (front) ··········· 10
7. SPREADER
7-1 Position of the spreader ··························· 11
7-2 Position of the spreader guide ·················· 11
7-3 Timing of the spreader ···························· 12
7-4 Position of the spreader (WX8842, 8842-1)···· 12
7-5 Position of the spreader guide (WX8842, 8842-1)
······························································· 13
8. FEED DOGS & STITCH LENGTH
8-1 Feed dog height & tilt ····························· 13
8-2 Stitch length ·········································· 14
8-3 Differential feed ····································· 15
9. PRESSER FOOT
9-1 Presser foot pressure ······························ 15
9-2 Position of the presser foot & foot lift ········· 16
10. STITCH FORMATION
10-1 Position of the needle thread guides ·········16
10-2
Position of the thread guide on the needle
thread take-up ······································17
10-3 Timing of the needle thread take-up ········17
10-4 Position of the needle thread guard ··········17
10-5 Position of the thread guide of the spreader
thread take-up ······································18
10-6 Position of the thread guide of the looper thread
take-up ················································18
10-7 Position of the looper thread take-up ········18
11. EMK ELASTIC FEEDER
11-1 To insert the lace/elastic ·························19
11-2 Lace/elastic guide on the presser foot ·······19
11-3 Adjusting the front of the presser foot ······19
11-4 To install the tape guide ·························19
11-5 Feeding amount of the lace/elastic ···········20
11-6 Pressure of the elastic feed small roller ·· 20
11-7 Checking the performance of the elastic
feeder ··················································20
11-8 Oiling each part ····································21
12. EMK FRONT KNIFE DEVICE
12-1
Adjusting and oiling the lower knife holder
21
12-2 Replacing the lower knife ·······················21
12-3 Replacing the upper knife ·······················21
12-4 Overlap of the upper and lower knives ·····22
12-5 To sharpen the knife ······························22
13. REPLACING THE TIMING BELT
13-1 To remove the timing belt ·······················22
13-2 To place the timing belt ·························23
14. MC30 (TAPE CUTTER)
14-1 Power supply cord ·································23
14-2 Intermediate cord ·································24
14-3 Adjustment (Electric type) ······················24
14-4 Air piping & wiring (Air type) ·················25
14-5 Air pressure ·········································26
14-6 Adjustment (Air type) ····························26
15. CLEANING THE MACHINE ···················27
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