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In
spection and
Adjustment
Adjustment
Upper Shaft Encoder Phase Adjustment
1. Enter the test mode, and press [MAIN BOARD TEST] and then press [SENSOR TEST].
2. Rotate the upper shaft counterclockwise until the J-clamp final assembly is lowered19.5 - 20.0 mm from the top
dead center position ( = the needle bar crank rod is in a vertical position).
3. Loosen the screw securing the encoder base.
Rotate the encoder base counterclockwise until [NEEDLE UP] signal display changes from [H] to [L], and then
tighten the screw.
NOTE •
In adjustment the encoder base move counterclockwise and make sure that the encoders do not contact
when tightening the screw.
NOTE •
After adjustment, check the following points and then check the index operation of the needle bar case.
Check points:
• Position of the needle bar clamp and jump bracket when the sewing machine stops operation.
• Position of the thread take-up differential lever when the sewing machine stops operation.
Select MAIN BOARD TEST
Select MAIN BOARD TEST
Select SENSOR TEST
Base needle bar
Needle bar crank rod
Thread take-up cam assy
Top dead center position
Secure the encoder base at the
position from [H] to [L]
Not contact
Screw
Summary of Contents for PR-600II
Page 1: ......
Page 2: ......
Page 20: ...2 2 Main parts Main unit ...
Page 33: ...2 15 Disassembly Feed unit Main unit ...
Page 44: ...2 26 Needle thread unit Main unit ...
Page 47: ...2 29 Disassembly Needle bar change unit Main unit ...
Page 50: ...2 32 Thread wiper unit Main unit ...
Page 54: ...2 36 Needle bar unit Main unit ...
Page 60: ...2 42 Upper shaft unit Main unit ...
Page 70: ...2 52 Lower shaft unit Main unit ...
Page 73: ...2 55 Disassembly Power unit Main unit ...
Page 78: ...2 60 Thread cut unit Main unit ...
Page 82: ...2 64 Thread tension unit Main unit ...
Page 91: ...2 73 Disassembly Operation panel Main unit ...
Page 98: ...2 80 ...
Page 100: ...3 2 Operation panel Main unit ...
Page 108: ...3 10 Thread tension unit Main unit ...
Page 118: ...3 20 Thread cut unit Main unit ...
Page 122: ...3 24 Power unit Main unit ...
Page 128: ...3 30 Lower shaft unit Main unit ...
Page 132: ...3 34 Upper shaft unit Main unit ...
Page 147: ...3 49 Assembly Needle bar unit Main unit ...
Page 157: ...3 59 Assembly Thread wiper unit Main unit ...
Page 162: ...3 64 Needle bar change unit Main unit ...
Page 166: ...3 68 Needle thread unit Main unit ...
Page 170: ...3 72 Feed unit Main unit ...
Page 188: ...3 90 Main unit Main unit ...
Page 282: ...4 42 ...
Page 311: ...6 1 6Maintenance ...
Page 333: ......