Brother MFC-9440CN - Screw Torque List

Confidential
3-3
3. SCREW TORQUE LIST
Tightening Note:
When tightening any of the screws shaded in the table below, slowly turn it
counterclockwise (in the direction to loosen the screw) with your hand until you feel that
the screw is a little dropped in the hole. Then, slightly turn it clockwise (in the direction
to tighten the screw) with your hand and tighten it according to the specified torque with
a screwdriver.
Note:
For verifying the shape of each screw, refer to “APPENDIX 4 SCREW CATALOGUE”.
Location of screw Screw type Q'ty
Tightening torque
N m (kgf • cm)
Tray cover ASSY Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Fuser unit Taptite, pan B M4x14 2 1.20 ±0.1 (12 ±1)
Back cover upper Taptite, cup S M3x8 2 0.80 ±0.1 (8 ±1)
Drive shaft holder Taptite, bind B M3x10 1 0.60 ±0.1 (6 ±1)
Taptite, cup B M4x12 2 1.20 ±0.1 (12 ±1) Paper eject ASSY DX/SX
Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Back cover ASSY Taptite, cup S M3x8 2 0.80 ±0.1 (8 ±1)
Transfer HVPS PCB unit Taptite, cup S M3x6 2 0.80 ±0.1 (8 ±1)
Earth plate 3 Taptite, bind B M3x8 1 0.60 ±0.1 (6 ±1)
Density shield plate 1 Taptite, bind B M3x8 2 0.60 ±0.1 (6 ±1)
Earth plate 2 Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Registration-mark sensor PCB ASSY 1 Taptite, bind B M3x8 1 0.60 ±0.1 (6 ±1)
Registration-mark sensor PCB ASSY 2 Taptite, bind B M3x8 1 0.60 ±0.1 (6 ±1)
Density sensor Taptite, bind B M3x8 2 0.60 ±0.1 (6 ±1)
Registration relay PCB ASSY Taptite, bind B M3x8 1 0.60 ±0.1 (6 ±1)
Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1) Transfer HVPS PCB ASSY
Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Taptite, cup B M4x12 3 0.80 ±0.1 (8 ±1) Side cover L ASSY
Taptite, cup S M3x8 1 0.80 ±0.1 (8 ±1)
Taptite, cup B M4x12 1 1.20 ±0.1 (12 ±1)
Taptite, cup S M4x8 1 1.20 ±0.1 (12 ±1)
Side plate LB
Taptite, cup S M3x6 3 0.80 ±0.1 (8 ±1)
Taptite, cup B M4x12 2 0.80 ±0.1 (8 ±1) Side cover R ASSY
Taptite, cup S M4x8 2 0.80 ±0.1 (8 ±1)
FG harness ADF Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Document scanner hinge Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Hinge ASSY L Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1)
Hinge ASSY R Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1)
ADF front cover Taptite, cup B M3x10 2 0.50 ±0.1 (5 ±1)
ADF side cover Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1)
Upper document chute Taptite, cup B M3x10 4 0.50 ±0.1 (5 ±1)
Lower document chute Taptite, cup B M3x10 2 0.50 ±0.1 (5 ±1)
FG harness ADF Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)