Brother NV4000D Service Manual page 142

Main unit
2
Tension pulley assembly attachment
1. Temporarily secure the tension pulley assembly 1 to the arm bed with the
screw 1.
Adjust the timing belt tension, and then fully tighten the screw 1.
*Key point
• Refer to "Timing belt tension adjustment" on page 4 - 3 for the
adjustment procedure.
1
3
Sheet attachment
1. Wipe the sheet attachment face 1 of the arm bed with a cloth dampened
with alcohol.
2. Attach the sheet to the sheet attachment face 1.
*Key point
• Check that the alcohol on the sheet attachment face 1has
dried before attaching the sheet.
• Hold the sheet at the ends, and attach it so that it fits snugly
against the reference pin 2.
3 - 10
Rotary hook driving unit, feed/rotary hook unit, thread
cutter unit, side feed unit
Screw, Pan (S/P washer)
M4X10DA
Color; Gold
Torque
·
1.18 – 1.57 N m
1
1
1
2