Brother MFC-9840CDW All in One Printer User Manual


 
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 (washer) 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
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 1.20 ±0.1 (12 ±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 1.20 ±0.1 (12 ±1) Side cover R ASSY
Taptite, cup S M4x8 2 1.20 ±0.1 (12 ±1)
FG harness ADF Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
FG harness FB Taptite, cup S M3x6 1 0.80 ±0.1 (8 ±1)
Driver PCB ASSY Taptite, cup S M3x6 2 0.80 ±0.1 (8 ±1)
Hinge protection cover ASSY Taptite, cup B M4x12 3 0.80 ±0.1 (8 ±1)
Hinge Taptite, bind B M4x12 2 0.80 ±0.1 (8 ±1)
Taptite, bind B M4x12 1 0.80 ±0.1 (8 ±1) Hinge base R
Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1)
Taptite, bind B M4x12 1 0.80 ±0.1 (8 ±1) Hinge ASSY L
Taptite, cup B M3x10 3 0.50 ±0.1 (5 ±1)