typical GC6760 SERIES, Setup, Instruction & Service Manual

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4
TYPICAL GC6760 Series
CONTENT
1 // SAFETY 5
1/1 General safety instructions 5
1/2 Important points for the user 5
1/3 Operating and technical staff 5
1/4 Safety symbols 6
1/5 Safety symbols on the machine 7
2 // TECHNICAL DATA 8
3 // DESCRIPTION OF
THE MAIN PARTS 9
4 // INSTALLATION 10
4/1 Location of the machine 11
4/2 Carry the machine 11
4/3 Tilting the machine head 11
4/4 Re-positioning the machine 11
4/5 Table top drawing 12
4/6 Installation 13
4/6/1 Controller and connecting rod 13
4/6/2 Main switch 13
4/6/3 Oil pan 13
4/6/4 Rubber pads and knee lever rod 14
4/6/5 Machine head 14
4/6/6 Sticker 15
4/6/7 Thread stand 15
4/6/8 Installing and adjusting the knee lever 16
4/7 Lubrication 17
4/8 Test run 18
5 // SETTING UP 19
5/1 Inserting the needle 19
5/2 Re-moving the bobbin case 19
5/3 Winding the bobbin 20
5/4 Inserting the bobbin 21
5/5 Threading the upper thread 21
5/6 Setting the stitch length 22
5/7 Using the thread wiper 22
5/8 Using the knee lever 22
6 // SEWING 23
6/1 Switching on and back tacking 23
6/2 Setting the stitch density 24
6/3 Sewing the stitch density 24
7 // THREAD TENSION 25
7/1 Setting the lower thread tension 25
7/2 Setting the upper thread tension 25
7/3 Adjusting the foot pressure 26
7/4 Adjusting the thread length at
the needle after thread cutting 26
8 // CLEANING & MAINTENANCE 27
8/1 Daily cleaning and maintenance 28
8/1/1 Cleaning 28
8/1/2 Checking the gear box oil level 29
8/1/3 Re-filling the lubrication oil 30
8/1/4 Checking the oil level 30
8/1/5 Checking the needle and thread 31
8/2 Lubricating 32
9 // SETTING THE
HOOK LUBRICATION 33
9/1 Checking and adjusting the lubrication 33
10 // ADJUSTMENTS 34
10/1 Adjusting the safety switch 35
10/2 Adjusting the take up spring 36
10/3 Adjusting the thread regulator 37
10/4 Adjusting the presser foot height 37
10/5 Adjusting the feed dog height 38
10/6 Adjusting the feed dog angle 39
10/7 Pre-adjustment of the needle bar height 40
10/8 Adjusting the feed lift movement 41
10/9 Adjusting the hook distance,
needle bar raise and needle height 42
10/10 Adjusting the thread cutter 43
10/10/1 Pre-adjusting the roller lever 43
10/10/2 Pre-adjusting the cam 43
10/10/3 Setting the movable thread catcher 44
10/10/4 Timing the cam 45
10/10/5 Setting the thread release 46
10/10/6 Setting the knife pressure 46
10/11 Adjusting the foot pedal 47
10/12 Sewing stretch and high pile material 48
10/13 Adjusting the electric back-tack switch
on the machine head 48
11 // ERROR MESSAGES & POSSIBLE
TROUBLE SHOOTING 49
12 // DISPOSAL OF MACHINE 55