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The nibbler is especially designed for working
with flat sheets of high alloy and stainless
steels.
Always use both hands to guide the nibbler.
Do not use force; this will lead to premature die
and punch wear.
Before running the nibbler, be sure the punch
and die are properly lubricated. See "Punch
and Die Lubrication" section.
Never start the nibbler with the punch and die
in contact with the material being cut.
Always be sure material is resting on lower die
during operation.
Be sure the Guide or Die screws have not
loosened over time.
The chips are ejected downwards.
The nose on the hold-down guide 6 serves as
a cutting marking. Straight cuts may be
executed easily by guiding the nibbler along a
straight edge.
For internal cuts, a starting hole of 1.625"
(41mm) is required, so the die can be inserted.
When cutting, guide the unit with a slight thrust
in the cutting direction.
Cutting takes place during the downward
movement of the die.
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Proper lubrication is essential to prolong punch
and die life, and is achieved by occasionally
fully submersing the punch and die in a small
container of the proper lubricant.
To further ensure a smooth cut and long punch
life, always lubricate the cutting path with
cutting oil. When cutting steel or stainless
steel, lubricate path of cut before starting work.
When cutting aluminum, lubricate path of cut
while making the cut. Since the punch cuts on
the downstroke, the upper side of the cut
should be lubricated.
When cutting steel, use a cutting oil or an SAE
30 weight oil.
When cutting aluminum, a mixture of 7 parts
kerosene and 3 parts turpentine should be
used.
Should punch jam, immediately switch off
nibbler, re-lubricate punch and die, and
remove tension from sheet.
The side handle used to guide and balance
the tool can be threaded into the front
housing on either side of the tool, depending
on personal preference and comfort. Use the
side handle for safe control and ease of
operation.
The side handle can be swivelled using the
handle extension. Thus gives you a body
position which is more stable and less
fatiguing. Fix handle holder with a hexagon
socket screw at the desired angle left or right
in thread. Screw a side handle right or left as
appropriate into the handle holder.
Holds the unit so that the lower die abuts on
the under side of the metal sheet which is to
be machined.
Always adjust the hold-down guide to the
appropriate material thickness. To do this
loosen the hexagon socket screws . Set
the hold-down guide on the sheet and allow
for approx. 1.3 mm play.
Tighten the hexagon socket screws .
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