Epson C8-B - Tightening Bolts;Screws

C8-B/C12-B Service Manual Maintenance Information Disclosure Scope: Maintenance Trained Personnel Only
(C) Seiko Epson Corporation 1-30 Rev.1
1.2.6 Tightening Bolts/Screws
In the manual, bolts and screws that are removed or installed for maintenance are shown below.
Unless otherwise specified, when re-tightening these bolts for maintenance tasks described in the manual, use a torque wrench and tighten
them to the tightening torques noted in the table below.
Example) S01: 6-M4x15
S01 indicates the “Type” in the table below. Be sure to tighten with the correct tightening torque after confirming the “Type” and “Size”.
Type
Description
Size
Tightening torque (N·m)
S01
Hexagon socket head cap screw
(silver)
M2.5
1.0 +/- 0.1
M3
2.0 +/- 0.1
M4
4.0 +/- 0.2
M5
8.0 +/- 0.4
M6
13.0 +/- 0.6
M8
32.0 +/- 1.6
S02
Hexagon socket head cap screw
(black)
(Reduction Gear, etc.)
M3
2.5 +/- 0.15
M4
5.0 +/- 0.25
M5
10.0 +/- 0.5
M6
18.0 +/- 0.9
M8
44.0 +/- 2.2
S03
Cross recessed pan head screw
(Circuit boards, etc.)
M2
0.2 +/- 0.03
M3
0.45 +/- 0.1
M4
0.45 +/- 0.1
S04
Cross recessed pan head screw
(Ground Wires, etc.)
M3
0.45 +/- 0.05
M4
0.9 +/- 0.1
S05
Hexagon socket head set screw
M3
0.9 +/- 0.1
M4
2.4 +/- 0.1
M5
4.0 +/- 0.2
S06
Cross recessed truss screw
(Covers, etc.)
M4
0.9 +/- 0.1