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CR-50B Cornerounder
Before operating this equipment, please read these
instructions completely and keep these operating
instructions for future reference.
485 Hague Street, Rochester, NY 14606 U.S.A.
Tel: 585-436-1934 Fax: 585-464-8665
www.lasscowizer.com info@lasscowizer.com
Date of Purchase:
Dealer:
Address:
Telephone Number:
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Operating Instructions
Cutting Unit Installation (Special & Standard Sizes)
Push down and pull back on the two Thumb Screw Knobs (50B-12) on both sides of the
1.
Handle (50B-05) Until the Pivot Bracket (50B-07) is engaged in the last Slot #3 of the
Handle.
Raise the Handle to the maximum position.
2.
Insert the Adapter Plate (50-26) into the Wooden Top Plate (50B-01) making sure to line up
3.
the red guides. Make sure that the Adapter Plate Rotation Tab (50-12) slips under the
Wooden Top Plate into its designated groove to prevent unwanted rotation of the Adapter
Plate. Turn the Adapter Hold Down Tab (50-11) so that it locks the Adapter Plate into
place.
Insert the Cutting Unit into the Adapter Plate by tilting it approximately 45 forward and
4.
seating it by pushing back and down until it is secure in place.
Push down and pull back on the two Thumb Screw Knobs and move the Pivot Bracket into
5.
Slot #1 of the Handle as shown below.
Depress the Handle up and down a few times to check the action of the Cutting Unit. Make
6.
sure the Pivot Bracket is correctly coming down onto the Cutting Unit.
Align the Side Guide (50-03R) using a straight edge pushed into the corner of the Cutting
7.
Unit. When it is positioned as desired, tighten down the Side Guide using the two
6-32 x 3/4” Pan Head Slotted Machine Screws.
Standard / Special Size
Cutting Unit (Misc Part #’s)
Adapter Plate (50-26)
Adapter Plate Rotation Tab (50-12)
Handle (50B-05)
Thumb Screw Knob (50B-12)
Pivot Bracket (50B-07)
Note:
When using a Standard or Special Size Cutting Unit it is important that the Pivot Bracket is located in
the Handle Slot #3 during operation. If the Pivot Bracket is located in either of the other two Slots, you
can damage the Cutting Unit.
6-32 x 3/4” Pan Head Slotted
Machine Screws
Side Guide (50-03R)
Adapter Hold Down Tab (50-11)
Wooden Top Plate (50B-01)
Slot #1
Slot #2
Slot #3
Handle Diagram
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Cutting Unit Installation (Large Sizes)
Push down and pull back on the two Thumb Screw Knobs (50B-12) on both sides of the
1.
Handle (50B-05) Until the Pivot Bracket (50B-07) is engaged in Slot #2 of the Handle.
Raise the Handle to the maximum position.
2.
Make sure the Adapter Plate has been removed.
3.
Insert the Large Size Cutting Unit into the Wooden Top Plate (50B-01) by tilting it
4.
approximately 45 forward and seating it by pushing back and down until it is secure in
place. Make sure the Rotation Tab on the Cutting Unit slips under the Wooden Top Plate
into its designated groove to prevent unwanted rotation of the Cutting Unit. Turn the
Adapter Hold Down Tab (50-11) so that it locks the Cutting Unit into place.
Depress the Handle up and down a few times to check the action of the Cutting Unit. Make
5.
sure the Pivot Bracket is correctly coming down onto the Cutting Unit.
Align the Side Guide (50-03R) using a straight edge pushed into the corner of the Cutting
6.
Unit. When it is positioned as desired, tighten down the Side Guide using the two
6-32 x 3/4” Pan Head Slotted Machine Screws.
6-32 x 3/4” Pan Head Slotted
Machine Screws
Large Size Cutting Unit
(Misc Part #)
Rotation Tab
Handle (50B-05)
Thumb Screw Knob (50B-12)
Pivot Bracket (50B-07)
Note #1:
When using Large Size Cutting Units sizes 3/4” and 1”, it is important that the Pivot Bracket is
located in the Handle Slot #2 during operation. If the Pivot Bracket is located in either of the
other two Slots, you can damage the Cutting Unit.
Side Guide (50-03R)
Adapter Hold Down Tab (50-11)
Wooden Top Plate (50B-01)
Slot #1
Slot #2
Slot #3
Handle Diagram
Note #2:
When using Large Size Cutting Unit size 1-1/2”, it is important that the Pivot Bracket is
located in the Handle Slot #3 during operation. If the Pivot Bracket is located in either of the
other two Slots, you can damage the Cutting Unit.
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Corner Rounding Operation
Place the product you are cutting onto the Wooden Top Plate and push it into the corner
aligning it with the Side guide the the back edge of the Cutting Unit.
Press down firmly to prevent the product from sliding out of the corner.
Depress the Handle with an even consistent pressure until the knives cut through the
product.
Note:
It may be necessary to adjust the Side Guide to compensate for variation in the cutting unit geometry,
especially when changing from a Standar / Specail Size Cutting Unit to a Large Size Cutting Unit.
Cutting Unit Capacities
Standard / Special Size Cutting Units:
These size Cutting Units were designed to handle up to a 1/2” stack of paper. They will also
cut many other materials such as plastics, cardboard, celluloid, leather, wood, and even
light soft metals. With heavier materials, however, best results may be obtained if only one
or a few pieces are cut at a time.
Large Size Cutting Units:
These size Cutting Units were designed to handle up to a 1/8” stack of paper. They will also
cut many other materials such as plastics, cardboard, celluloid, leather, and wood. With
heavier materials, however, best results may be obtained if only one or a few pieces are cut
at a time.
Chip Removal
Pull out on the Chip Tray Handle located on the back of the machine and emtpy the
contents of the Chip Tray. Replace the Chip Tray by inserting the flanges into the retainer
strips located on the underside of the Wooden Top Plate.
Note:
Do not allow chips to build up under the Cutting Unit. Occasionally tilt the back of the machine up to
allow the paper chips to flow to the extreme end of the chip box. Empty the Chip Tray as needed.
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Parts Diagram
6-32 x 3/4” Pan Head Slotted
Machine Screws
Adapter Plate (50-26)
Adapter Plate Rotation Tab (50-12)
Handle (50B-05)
Pivot Bracket (50B-07)
Thumb Screw Knob (50B-12)
Shoulder Screws (20-24)
Hinge Bracket (50B-08)
Paper Guide (50-03R)
10-32 x 3/8” Socket Head
Machine Screws
Black Knob (FM4-4007)
Adapter Hold Down Tab (50-11)
Wooden Top Plate (50B-01)
Channel Guard (EBM-44A)
Chip Tray (50B-02A)
Table Support (50B-04)
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