odiusted
position.
Loosen
the
hexogonql
nut ond turn the
pivot
obout two turns in o countercIockwise direciion
--
the upper end
of the
moin drive
column is now
free.
HEXAGONAL
LOCKING
NUT
AND
UPPER MAIN
DRIVE COLUMN PIVOT
SYNC
PALLET
ECCENTRIC
CONTACT
BLOCK
RETAINING
SCREW
FIGURE
50
Next,
locote the cover
screw for the lower pivot of
the
bottom of
the
ossembly, Fig.5l. Using
o spline
keyof the
proper
size, toke
out
the cover screw.
There moy be
slugs
under the
cover screw
--
if
so, remove the slugs to reoch the
lower
pivot.
COVER SCREW
FOR
LOWER
MAIN
DRIVE
COLUMN
PIVOT
FIGURE 51
BOTTOM
OF ASSEMBLY
Looking through the cover screw hole, locote the lower
moin
drive
column pivot
--
this pivot hos o
left-hond threod. So turn
the lower
pivot
ino
clockwise direction until
you
con
lift out the
moin drive column
ond the
moinspring.
Figure
52,
showing the
moin drive column,
poinfs
out the
nome of eochlugond com.
lf
you'll lookinto thecovity
ot either
end of the
moin drive
column, you should spot o
boll
beoring
--
one
boll beoring
is spun into
the boseof the covifyot eoch
end of
the moin
drive
column.
The boll beorings,
which
engoge the
pivofs, should
not
come out
in normol disossembly
-- buf
you
should
nonetheless
check
to moke
sure
both
boll beorings
ore
present.
39
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