Brother Innov-is NV4000D, Service Manual

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3 - 132
Needle-presser module Module
42
Presser pulse motor holder ASSY assembly
1. Apply 1 or 2 drops of Turbine oil #100 to the shaft of the presser pulse
motor
1
.
2. Insert the presser pulse motor lead wire assembly
2
into the connector of
the presser pulse motor
1
.
3. Attach the presser pulse motor assembly to the presser pulse motor holder
with the 2 screws
1
.
*Key point
• Position the PCB of the presser pulse motor to the right.
4. Attach the ATPF INIT PCB assembly
3
to the presser pulse motor holder
4
with the screw
2
.
*Key point
• Engage the positioning tab on the presser pulse motor holder
with the U-shaped notch (the one far from the screw) on the
ATPF INIT PCB assembly.
• Tighten the screw
2
at the center of the slot on the ATPF INIT
PCB assembly.
Apply Turbine oil #100 to the shaft of the presser pulse
motor.
1 - 2 drops
1
Torque
0.58 – 0.78 N
·
m
2
Torque
0.58 – 0.78 N
·
m
2 1
1 4 2 3
Screw, Bind
M 3X4
Color; Silver
Screw, Pan (S/P washer)
M3X5
Color; Silver
43
Presser pulse motor holder assembly attachment
1. Attach the presser pulse motor holder
1
to the unit holder with the screws
1
and
2
(2 for
2
).
*Key point
• Tighten the screws 1 and 2 in the following order: 1
(temporarily tighten),
2
(fully tighten both), and
1
(fully
tighten).
NOTE
• Check that there is no grease adhered to the shutter of the
presser dial.
• Check that the shutter of the presser dial is almost centered
relative to the sensor of the ATPF INIT PCB assembly.
1
Torque
1.18 – 1.57 N
·
m
2
Torque
0.58 – 0.78 N
·
m
1 1
2
Screw, Bind
M 4X5
Color; Silver
Taptite, Bind B
M4X10
Color; Gold