Olympus OM-1 Repair Manual page 144

E-48
Checkup
KC-0070G #01 Olympus M Mount U and KC-0070G #3 46.00 gauge are to
be used to measure the four points on the rails.
Parallelism (the difference between measured points) snould be less than
0
.
02
.
2) Focus adjustment for the viewfinder.
A proper type of 9144 (Washer) and 9145 (Washer) is to be selected out of
8 types available for each. Pick the type with the same thickness and use
them in a pair.
a
t » 0.04
9145 a
t= 0.04
b
0.06
b
0.06
c
0.10
c
0.10
d
0.15
d
0.15
e 0.20
e
0.20
f
0.25
f
0.25
g
0.30
g
0.30
h
0.35
h
0.35
ht