Screw Torque List - Brother MFC8420 Service Manual

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
6.

SCREW TORQUE LIST

1. Main Body
No. Parts code
1 087320-616
2
087320-616
2. Cover
No. Parts code
1 085412-216
2
087310-815
3
087320-616
4 085412-216
3. Document Scanner
No. Parts code
1
0A4300-605
2
087320-616
3
LE2861-001
4
UF5034-001
5
087320-616
6
087310-816
7
UF5034-001
8
087411-216
9
087412-016
Parts name
Taptite, cup S M3x6
Taptite, cup S M3x6
Parts name
Taptite, bind B M4x12
Taptite, cup S M3x8
Taptite, cup B M3x6
Taptite, bind B M4x12
Parts name
Rew, pan (S/P washer)
M3
Taptite, cup S M3x6
Taptite, pan B M3x8
Taptite, B M3x6
Taptite, cup S M3x6
Taptite, cup B M3x8
Taptite, B M3x6
Taptite, cup B M4x12
Taptite, cup B M4x20
Location
NCU PCB ASSY
NCU shield cover
NCU shield plate
Main PCB ASSY
Location
Inner chute
Joint cover front L
Joint cover front R
Driver PCB ASSY
D-PCB shield
Joint cover ASSY
Side cover R
Side cover L
Rear cover R
Rear cover L MFC
Driver PCB access cover
Rear cover C
Location
FB motor
FG harness
Driver plate ASSY
Pulley ASSY
FG plate
FFC plate
Lock lever B
Lock lever A
For the top cover
For the scanner unit
4-90
Pcs. Tightening torque
⋅ ⋅
N m (Kgf cm)
2
±
1 0.686 0.098 (7
2
±
5
0.686 0.098 (7
Pcs. Tightening torque
⋅ ⋅
N m (Kgf cm)
4
±
2
0.784 0.098 (8
2
±
3
0.588 0.098 (6
±
1
0.686 0.098 (7
4
3
4
±
2 0.784 0.098 (8
2
1
1
Pcs. Tightening torque
⋅ ⋅
N m (Kgf cm)
2
±
0.686 0.098 (7
±
1
0.686 0.098 (7
±
4
0.588 0.098 (6
±
1
0.392 0.098 (4
±
1
0.686 0.098 (7
±
1
0.588 0.098 (6
1
±
0.392 0.098 (4
2
±
6
0.784 0.098 (8
±
2
0.784 0.098 (8
±
1)
±
1)
±
1)
±
1)
±
1)
±
1)
±
1)
±
1)
±
1)
±
0.5)
±
1)
±
1)
±
0.5)
±
1)
±
1)