Brother PR600II Service Manual page 261

Adjustment
Front/back position adjustment
1. Enter the test mode, and press [MAIN BOARD TEST MODE] and then [NEEDLE POSITION].
2. Press [[FRONT - BACK] POSITION]]. The reference needle bar is selected and the needle bar case final
assembly moves.
3. Rotate the pulley manually to lower the needle bar until the needle tip enters the needle hole.
4. Loosen the screw 1 at the lower section of the needle bar case final assembly.
5. Move the case positioning plate assembly back and forth to adjust the needle front/back position.
6. Tighten the screw 1.
7. Check the position for the other 5 needle bars.
*Key point
• Pressing [←] and [→] selects the other needle bars.
1
1
Needle position adjustment (front/back)
Bolt, Socket
M5X10
Color; Black
least 0.3mm
Clearance between the needle hole and the needle
front/back position should be at least 0.3 mm.
Torque
1.18 - 1.57 N-m
Needle
least 0.3mm
4 - 21