REASSEMBL
Y PROCEDURE
3. UW-tube
3-1.
Depression
prism
unit (Refer
to
Fig.
3)
1)
Applying a trifle of
adhesive
No.
616
to
the threaded part
ofmount
@,
screw it into bottom
plate
@ (Fig. 25).
2) Attach
sliding
plate
@ and dovetail
groove
@ (the
one that
has
not
been
disassembled)
to
@,
transitorily.
3) Perform the
posi-
tioning of @
in
respective
to
@
as
below:
lnsert the
male
dove·
tail
of
prism holder @ into the fiducial
one (has not been disassembled) of
@,
and
move
@ parallel
in
the
direction of
the arrow,
as
shown
in
Fig.
26.
ln
this
case,
keep thê slack within about O.Olmm.
4)
Apply oil G7920 to the
sliding
surface
for dovetail fitting. Check
for
smooth
sliding, and for slow dropping
of @
by
itself, when holding @ with
the
hand.
5) Apply adhesive
No.
350 into
@xa.
-
30-
R-4106.A
3. UW·tube
Fig.
25
"~
'CI
,~.
'..::::'./, 8 1 17 1
Fig.
26