Yamaha Electone F-25 Servicehandleiding - Pagina 41

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Yamaha Electone F-25 Servicehandleiding
SPEC

PTT unit

Part to be tightened
Stator screw
Brush holder screw
PTT motor assembly bolt
Reservoir cap
Manual valve
Gear pump bolt
Valve lock screw
Gear pump housing bolt
Main valve
Tilt piston bolt
Tilt cylinder end screw

Optional equipment

Part to be tightened
Self-locking nut (6X4)

General tightening torque

This chart indicates the tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifications
for special components and assemblies are
provided in the applicable sections of this
manual. To prevent warpage, tighten multi-
fastener assemblies in a crisscross fashion
and progressive stages until the specified
torque is reached. Unless otherwise indi-
cated, torque specifications require clean, dry
threads.
Components should be at room temperature.
Width
Screw
across
size (B)
flats (A)
8 mm
M5
10 mm
M6
12 mm
M8
14 mm
M10
17 mm
M12
1-23
Specification
General torque
specifications
N·m
kgf·m
ft·lb
5
0.5
3.7
8
0.8
5.9
18
1.8
13.3
36
3.6
26.6
43
4.3
31.7
Screw size
N·m
M4
2
M3
1
M6
7
—
7
—
3
M4
4
—
6
M6
9
—
11
M10
61
—
90
Screw size
N·m
—
37
Tightening torques
kgf·m
ft·lb
0.2
1.5
0.1
0.7
0.7
5.2
0.7
5.2
0.3
2.2
0.4
3.0
0.6
4.4
0.9
6.6
1.1
8.1
6.1
45.0
9.0
66.4
Tightening torques
kgf·m
ft·lb
3.7
27.3