Harbor Freight Tools CEN-TECH 2458 User manual

MINI ROLLING MILL
Model 2458
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http//www.harborfreight.com
Copyright 2002 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions, please call 1-800-444-3353.
®
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PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly,
operating, inspection, maintenance and cleaning procedures, parts list and as-
sembly diagram. Keep your invoice with this manual. Write the invoice number
on the inside of the front cover. Keep this manual and invoice in a safe and dry
place for future reference.
GENERAL SAFETY WARNINGS AND PRECAUTIONS
1. KEEP WORK AREA CLEAN AND DRY. Cluttered, damp, or wet work areas
invite injuries.
2. KEEP CHILDREN AWAY FROM WORK AREA. Do not allow children to handle
this product.
3. STORE IDLE EQUIPMENT. When not in use, tools and equipment should be
stored in a dry location to inhibit rust. Always lock up tools and equipment, and
keep out of reach of children.
4. DO NOT USE THIS PRODUCT IF UNDER THE INFLUENCE OF ALCOHOL OR
DRUGS. Read warning labels on prescriptions to determine if your judgement or
reflexes are impaired while taking drugs. If there is any doubt, do not attempt to
use this product.
5. USE EYE AND HAND PROTECTION. Wear ANSI approved safety impact eye
goggles and heavy-duty work gloves when using this product. ANSI approved
safety impact eye goggles and heavy-duty work gloves are available from Harbor
Freight Tools.
SKU 2458 PAGE 2
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 
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6. DRESS SAFELY. Do not wear loose clothing or jewelry, as they can become
caught in moving parts. Wear a protective hair covering to prevent long hair from
becoming caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up
above elbows.
7. DO NOT OVERREACH. Keep proper footing and balance at all times to prevent
tripping, falling, back injury, etcetera.
8. INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA REQUIREMENT.
9. STAY ALERT. Watch what you are doing at all times. Use common sense. Do
not use this product when you are tired or distracted from the job at hand.
10. CHECK FOR DAMAGED PARTS. Before using this product, carefully check that
it will operate properly and perform its intended function. Check for damaged
parts and any other conditions that may affect the operation of this product.
Replace or repair damaged or worn parts immediately.
11. REPLACEMENT PARTS AND ACCESSORIES: When servicing, use only identi-
cal replacement parts. Only use accessories intended for use with this product.
Approved accessories are available from Harbor Freight Tools.
12. MAINTAIN THIS PRODUCT WITH CARE. Keep this product clean and dry for
better and safer performance.
13. MAINTENANCE: For your safety, service and maintenance should be performed
regularly by a qualified technician.
14. USE THE RIGHT TOOL FOR THE JOB. Do not attempt to force a small tool or
attachment to do the work of a larger industrial tool. There are certain applica-
tions for which this tool was designed. It will do the job better and more safely at
the rate for which it was intended. Do not modify this tool, and do not use this
tool for a purpose for which it was not intended.
15. WARNING: The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors, which
cannot be built into this product, but must be supplied by the operator.
SPECIFIC PRODUCT WARNINGS AND PRECAUTIONS
1. KEEP FINGERS AND HANDS SAFELY AWAY FROM THE ROLLERS (part
#23), GEAR WHEEL (part #17), AND GEARS (parts #12, #13) AT ALL TIMES
TO AVOID PERSONAL INJURY. (See Figure A, next page.)
SKU 2458 PAGE 3
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2. WHEN MOVING THE MINI ROLLING MILL, DO NOT ATTEMPT TO LIFT THE
MACHINE BY ITS GEAR HANDLE (part #7) AS THE HANDLE CAN BE
PULLED OUT FROM THE ROLLING MILL, RESULTING IN PERSONAL
INJURY. (See Figure B, next page.)
3. MAKE SURE THE MINI ROLLING MILL IS SECURELY MOUNTED ON A FLAT,
LEVEL, STURDY, WORKBENCH CAPABLE OF SUPPORTING THE WEIGHT
OF THE MINI ROLLING MILL, TOOLS, ACCESSORIES, AND WORKPIECE.
(See Figure B.)
WORKBENCH
(NOT PROVIDED)
HANDLE (#4)
BOLT & WASHER (#5)
GEAR (#12)
GEAR WHEEL (#17)
GEAR (#13)
FIGURE A
4. MAINTAIN A SAFE WORKING ENVIRONMENT. Keep the work area well lit.
Make sure there is adequate surrounding workspace. Always keep the work
area free of obstructions, grease, oil, trash, and other debris.
5. AVOID TOUCHING ROLLERS. Oils and acids from your body can damage the
Rollers, leaving behind tiny pits.
6. DO NOT OVER EXERT PRESSURE ON THE ROLLERS.
7. WHENEVER POSSIBLE, USE THE CENTER OF THE ROLLERS TO ENSURE
EVEN PRESSURE AND PROLONG THE LIFE OF THE ROLLERS
8. DO NOT ROLL FERROUS METALS SUCH AS IRON OR STEEL THROUGH
THE MINI ROLLING MILL.
9. ALWAYS RELEASE PRESSURE ON THE ROLLERS AFTER YOU HAVE
COMPLETED THE JOB.
SKU 2458 PAGE 4
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UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List (page 7) are
included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
ASSEMBLY INSTRUCTIONS
NOTE: For additional references to the parts listed below, refer to the Assembly
Diagram (page 8).
To Mount The Mini Rolling Mill On A Workbench:
1. Caution: Make sure the Mini Rolling Mill is securely mounted on a flat, level,
sturdy, workbench capable of supporting the weight of the Mini Rolling Mill, tools,
accessories, and workpiece.
2. There is one 3/8” mounting hole located at the front end of the Base Body (part
#1), and another 3/8” mounting hole located at the rear end of the Base Body.
(See Figure B.)
3. With assistance, set the Mini Rolling Mill in the desired location on the top edge
of the workbench. Using the two 3/8” mounting slots as a template, mark the two
holes that are to be drilled through the top of the workbench. Then, temporarily
remove the Mini Rolling Mill. (See Figure B.)
FRONT VIEW REAR VIEW
FIGURE B
HANDLE (#4)
WORKBENCH EDGE
ROLLER (#23)
GEAR HANDLE (#7)
3/8” MOUNTING
HOLE
3/8” MOUNTING HOLE
SKU 2458 PAGE 5
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4. Using a drill and 3/8” drill bit (not provided), drill the two previously marked holes
completely through the top of the workbench.
5. Place the Mini Rolling Mill back upon the workbench, and align the two 3/8”
mounting holes on the Base Body (part #1) with the two previously drilled holes
in the workbench. Then, firmly secure the Mini Rolling Mill to the workbench with
two 3/8” diameter bolts of appropriate length, two lock washers, and two nuts (not
provided). (See Figure B.)
To Attach The Handle:
1. To attach the Handle (part #4) to the Mini Rolling Mill, insert the Handle onto its
Handle Shaft and secure the Handle with the Bolt and Washer (part #5).
(See Figure A.)
OPERATING INSTRUCTIONS
NOTE: For additional references to the parts listed below, refer to the Assembly
Diagram (page 8).
1. Insert the Gear Handle (part #7) into the top of the Mini Rolling Mill.
(See Figure B.)
2. Prepare the material to be rolled: anneal (heat and then cool to soften and re-
duce brittleness) the piece of sheet or ingot, pickle (preserve) it, and rinse it with
clean water.
3. Feed the metal into the front end of the Mini Rolling Mill by inserting the metal
between the two Rollers (part #23). Then, turn the Handle (part #4) clockwise.
Apply snug (but not overpowering) pressure on the Rollers. NOTE: To apply
greater pressure on the Rollers, turn the Gear Handle (part #7) clockwise. To
apply less pressure, turn the Gear Handle counterclockwise. (See Figure B.)
4. After rolling the metal completely through the Mini Rolling Mill, flip the metal end to
end before rolling it through again. This allows for a more even roll.
5. Before passing the metal through the Rollers (part #23) again, apply greater
pressure to the Rollers until the metal passes through snugly. (See Figure B.)
6. If the metal becomes too hard to roll, it must be annealed (heated, then cooled)
again. Then roll the metal through the Rollers (part #23), repeating as necessary
until the desired thickness is achieved. (See Figure B.)
7. NOTE: When rolling silver sheet, it may be necessary to anneal (heat, then cool)
the sheet after rolling it from 3.0mm to 1.0mm in thickness. For 14kt gold, the
annealing may be necessary after rolling from 3.0mm to 2.0mm.
SKU 2458 PAGE 6
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INSPECTION, MAINTENANCE, AND CLEANING
1. BEFORE EACH USE, inspect the general condition of the Mini Rolling Mill.
Check for loose screws, misalignment or binding of moving parts, and any other
condition that may affect its safe operation. If a problem occurs, have the Mini
Rolling Mill corrected before further use. Do not use damaged equipment.
2. With a soft brush, soft cloth, or vacuum, remove all debris from the Mini Rolling
Mill.
3. When necessary, wipe with a damp cloth, using a mild detergent or mild solvent.
Then, use a premium quality, lightweight oil to lubricate all moving parts.
4. When storing, keep the Mini Rolling Mill covered with a clean cloth.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER
THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE
IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTUER AND/
OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
SKU 2458 PAGE 7
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PARTS LIST
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ASSEMBLY DIAGRAM
NOTE: Some parts are listed and shown for illustration purposes only, and are not
available individually as replacement parts.
SKU 2458 PAGE 8
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