General Tightening Torque; Ptt Unit - Yamaha F150A Service Manual

Part to be tightened
Oil pan assembly bolt
Drain bolt
Oil strainer bolt
Oil pan bolt
Exhaust manifold bolt
Muffler bolt
Self-locking nut
Grease nipple
Trim stopper nut
Trim sensor screw

PTT unit

Part to be tightened
Lower mounting shaft bolt
Reservoir cap
Main valve
Manual valve
Tilt ram
Tilt piston screw
Trim cylinder end screw
Tilt cylinder end screw
PTT motor mounting bolt
Reservoir mounting bolt
Pump bracket bolt
Plug
Gear pump bolt

General tightening torque

This chart indicates the tightening torques for
standard fasteners with a standard ISO
thread pitch.
Width
Screw
across
size (B)
flats (A)
8 mm M5
10 mm M6
12 mm M8
14 mm M10
17 mm M12
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
M8
M10
—
M6
M8
M8
M8
—
—
—
M6
Screw size
M10
—
—
—
—
M6
—
—
M6
M6
M4
M5
—
M5
1-20
Specified tightening torque
Tightening torques
N·m kgf·m
20 2.0
42 4.2
28 2.8
12 1.2
20 2.0
20 2.0
20 2.0
15 1.5
3 0.3
48 4.8
4 0.4
Tightening torques
N·m kgf·m
39 3.9
7 0.7
11 1.1
3 0.3
65 6.5
7 0.7
160 16.0
150 15.0
7 0.7
7 0.7
4 0.4
7 0.7
4 0.4
7 0.7
ft·lb
14.8
0
31.0
20.7
8.9
14.8
1
14.8
14.8
11.1
2.2
2
35.4
3.0
3
ft·lb
28.8
4
5.2
8.1
2.2
47.9
5
5.2
118.0
110.6
5.2
6
5.2
3.0
5.2
7
3.0
5.2
8
9
10
A