Canon C12-8453, Service Manual

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<P
REPARATION
>
1. Insert a 2mm reinforcement ring between the dial gauge’s prong and contact
element.
(This is necessary because the dial gauge is designed for a flange focal distance of
42.14 mm.)
2. Use the flange focal distance gauge (44.14mm or 42.14mm) and the optical flat, and
set the dial gauge to 0.
Fig. 3-54 Dial gauge
Part 3: Repair Information
3-40
44.14mm-Gage
42.14mm-Gage
10
20
30
40 50
60
70
80
10
20
30
40 50
60
70
80
0
1
2
3
4 5 6
7
8
9
0
1
2
3
4 5 6
7
8
9
Dial gauge
Reinforcement
ring
Contact
element
• Check that the inner scale on the dial
gauge is as shown below. Then set
the gauge to 0 on the outer scale.
Flange focal
distance gauge
Optical flat