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TECHNICAL
BETTCHER
LARGE MODULAR SERIES II WHIZARD
MANUAL
INDUSTRIES, INC.
REV. June 28, 2012
Page 10
SECTION 8.0
Instruction For Operation
8.1 Optional Thumb Support And Handle Size Selection
Your Modular Series II Whizard
®
tool has been supplied with a spacer ring and an optional thumb
support. If using the optional thumb support, the operator’s thumb should be fully supported and
rest comfortably in the support. The thumb support has been optimized to fit most hands
comfortably.
Fitting the correct size handle to the grip of an operator’s hand is a very important step when
trying to reduce risks associated with cumulative trauma disorders. The Trimmers are
available in right and left handed configurations. Once it has been determined that an operator
is right or left handed and the appropriate model of Trimmer has been selected, choosing the
proper handle size can be accomplished in the following manner. The handles have been
color-coded for size as follows:
Tan
XX-Small
Turquoise
X-Small
Grey
Small
Blue
Medium
Green
Large
Here is a very simple procedure to determine correct handle size:
STEP 1 - Assemble four (4) knives each with a different size handle. (See Section 8.2 for
complete assembly instructions).
STEP 2 - Allow the user to hold the knife and apply the grip pressure normally used during
the job operation.
NOTE
If the operator normally wears a glove, this process
should be done with the glove(s) used in normal operation.
We do not recommend the use of Nitrile gloves in direct
contact with the Whizard® handles because
the gloves may become slippery.
The operator should choose the handle that is most comfortable. Allow the operator to work
with this handle on a tool for several days. If the operator is not comfortable with the handle
selection, try a different size.
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