-46-
For Machines Mfd. Since 12/20
South Bend Tools
Model SB1108/SB1109
S E R V I C E
Table Parallelism Adjustments
The table is adjusted by turning the chain
sprockets underneath the table for movements
over 0.016" or by adjusting how the table is
mounted on the columns for movements under
0.016".
1.
DISCONNECT MACHINE FROM POWER!
2.
Remove motor access panel and locate chain
on underside of table.
3.
Loosen lock bolts and idler sprocket (see
Figure 66).
NOTICE
When making adjustments, tighten fasteners
after each step to ensure the accuracy of your
tests. When adjusting the chain sprockets,
keep in mind that if the chain becomes too
loose, it will fall off of all the sprockets, and
returning it to its proper location can be
extremely difficult.
5.
Mark location of one tooth of sprocket that
you are adjusting.
6.
Carefully rotate sprocket (clockwise to lower
table; counterclockwise to raise table) just
enough to position next tooth at marked
location, then fit chain around sprocket
again.
7.
Repeat
Steps 4–6 with each sprocket
that needs to be adjusted until table-to-
cutterhead clearance is within 0.016" from
one side to the other.
8.
Make sure chain is properly fitted on
sprockets, then re-tighten idler sprocket and
lock bolts.
9.
If necessary, micro-adjust table position by
loosening cap screws (see Figure 67) and
raising or lowering table until it is properly
aligned with cutterhead.
Note:
This process may require adjusting the
columns on both the left and right hand sides
until you find the correct combination.
10.
Re-tension table height chain (see
Tensioning Table Height Chain
instructions on Page 44).
To adjust table parallelism:
4.
Move chain away from sprocket you want to
adjust so only that sprocket can be rotated
independent of chain.
Note:
If the left side of the table is too high,
the left two sprockets will need to be adjusted.
Each tooth on the sprocket represents 0.016"
of vertical movement as the cogs are turned.
Make sure, as you turn the sprockets, to keep
an accurate tooth count to ensure that the
table is adjusted equally.
Figure 67. Location of table micro-adjustment screws
(only one side shown).
Micro-Adjustment
Screws
Idler
Sprocket
Lock Bolts
Figure 66. Location of idler sprocket and chain tension
lock bolts.
!
Содержание SB1108
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