Jet EQUIPMENT &TOOLS SBR-30N, Инструкция по эксплуатации и каталог запасных частей

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9
Blade Rotation and Replacement
Exercise caution when
working with or near the blades. Use work
gloves when handling them.
The shearing blades are reversible and
interchangeable; when the edges dull, rotate
them to the new edge, as follows:
1. Remove the hold-down by loosening the
socket head cap screws (J, Figure 11),
using a 6mm hex key.
2. Raise the upper blade to highest position.
3. Remove the seven socket head cap screws
(K, Figure 11) and carefully remove a blade.
4. Rotate or replace the blade and re-install
the screws.
5. Re-install the hold-down. When the blade is
in highest position, the gap between the
hold-down and the table should be within
1/4”. Adjust to this position by turning the
two socket head cap screws (J, Figure 11)
as needed. When the blade starts its
downward travel, the hold-down should
immediately hold the workpiece in place.
Setting Up the Slip Roll
Do not roll any material
larger than 30” (40”), 20-
gauge mild steel. The slip roll guard must
cover the slip rolls except when material is
being fed into the rolls. Failure to comply
may cause serious injury and/or damage to
the machine.
Material Size Considerations
To determine the approximate length of material
needed for a desired size tube, use the following
formula:
D C
π
=
,
where C is the circumference,
π
equals 3.1417
and
D
is the diameter.
For example: To find the length of material
needed ( C ) to form a tube 4" in diameter,
multiply 3.1417 by 4". Result: 12.5667" is the
circumference of approximate length of material
needed. Cut several pieces of material to this
length for a forming test run. Material may have
to be lengthened or shortened depending upon
results of the test run.
Figure 11