Yamaha 100A Service Manual page 12

HOW TO USE THIS MANUAL
1 The main points regarding removing/installing and disassembling/assembling procedures
are shown in the exploded views.
2 The numbers in the exploded views indicate the required sequence of the procedure and
should be observed accordingly.
3 Symbols are used in the exploded views to indicate important aspects of the procedure.
A list of meanings for these symbols is provided on the following page.
4 It is important to refer to the job instruction charts at the same time as the exploded views.
These charts list the sequence that the procedures should be carried out in, as well as pro-
viding explanations on part names, quantities, dimensions and important points relating
to each relevant task.
Example:
O-ring size
5 In addition to tightening torques, the dimensions of the bolts and screws are also men-
tioned.
Example:
Bolt and screw size
6 In addition to the exploded views and job instruction charts, this manual provides individ-
ual illustrations when further explanations are required to explain the relevant procedure.
39.5 × 2.5 mm: inside diameter (D) × ring diameter (d)
: bolt and screw diameter (D) × length (L)
10 × 25 mm
D
d
D
L
E