CENTRAL MACHINERY 68897 Metal Shrinker and Stretcher Set Owner’s Manual

CENTRAL MACHINERY 68897 Metal Shrinker and Stretcher

**IMPORTANT SAFETY INFORMATION

**

**General Tool Safety Warnings

**

WARNING
Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference.

1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area Keep work area well lighted.
3. Keep children Do not allow children in the work area. Do not let them handle tools.
4. Store idle equipment. When not in use, store tools in a dry location to inhibit Store out of reach of children.
5. Use eye and hand protection. Wear ANSI- approved impact safety goggles and leather work gloves when setting up and using this product.
6. Maintain tools. Keep tools clean for better and safer performance. Follow instructions for lubricating and changing accessories. The handle must be kept clean, dry and free from oil and grease at all times
7. Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
8. Stay alert. Watch what you are doing. Do not operate any tool when tired or under the influence of drugs, alcohol or medication.
9. Replacement parts and accessories. When servicing, use only identical replacement parts. Use of any other parts will void the Only use accessories intended for use with this tool.
10. Use caution when handling workpieces. Metal workpieces have sharp edges. Use heavy duty gloves when handling the workpiece
11. Attach the Metal Shrinker/Stretchers to a stand or table before use.
12. Do not use a handle extension to increase force.
13. Keep hands and fingers clear of the Jaws when using this tool.

Specifications

Operation| Hand operated or Foot pedal (Foot pedal stand sold separately)
---|---
Thickness Capacity| 16 gauge aluminum 18 gauge mild steel 20 gauge stainless
Bend Capacity| up to 3″ radius

Setup – Before Use

Read the ENTIRE Important Safety INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

WARNING
For additional information regarding the parts listed in the following pages, refer to the Assembly Diagram near the end of this manual.

Assembly/Mounting

1. The Shrinker/Stretchers have pre- drilled holes in their bases able to accept M10 sized bolts (sold separately).
2. Secure each tool to a workbench or stand (sold separately) using appropriate sized bolts, washers and nuts (all sold separately).
3. For portability, the tool may be clamped into the jaws of a vise (sold separately).

Functions

Operating Instructions

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product.

Work piece and Work Area Set Up

1. Designate a work area that is clean and well-lit. The work area must not allow access by children or pets to prevent distraction and injury.
2. When forming large pieces, use work horses (sold separately) or other supports to help maneuver the workpiece while FORMING.

General Operating Instructions

To learn how the metal handles, and how much pressure to use with the tool, practice using the Shrinker/Stretchers on a piece of scrap metal before forming your workpiece. Use a scrap that is the same type of metal and hardness as your workpiece.
__

NOTE : If bending a flange as shown below, first form the workpiece′s 90 ° angle using a Sheet Metal Brake (sold separately), creating a maximum flange depth of 1″.

1. Make a cardboard or wire template of the desired finished size and shape of the work piece.
2. Working with the leading edge first, insert the workpiece halfway into the jaws.
3. Press firmly on the handle or foot pedal and move the metal back and forth to form the workpiece. The amount of pressure used with the handle determines the amount of bending achieved.
4. Remove the workpiece often and check against the template, continuing until the desired shape is achieved.

Note:

• Bunching or pocketing that typically occurs when shrinking can be hammered out.
• The jaws of the tools are ″toothed″ to better grip the workpiece. These teeth leave slight markings which can be removed with an abrasive cloth or wheel.

Maintenance and Servicing

WARNING:
procedures not specifically explained in this manual must be performed only by a qualified technician.
CAUTION:

• TO PREVENT INJURY FROM TOOL FAILURE:
  • Do not use damaged equipment.
  • If abnormal noise or vibration occurs, have the problem corrected before further use.

Cleaning, Maintenance, and Lubrication

1. BEFORE EACH USE, inspect the general condition of the tool. Check for loose hardware, misalignment or binding of moving parts, cracked or broken parts, and any other condition that may affect its safe.
2. When not in use, lightly oil the jaws with machine oil to prevent
3. Clean the jaws if tool does not function.

To clean the jaws:
__ Note:

• Refer to the Parts List and Diagram opposite for the following procedure.

  • Loosen the Screws (25) to remove the Jaw Cover (8), allowing the Jaws to be removed.
  • Remove the Jaws and V-Block as a single unit, being careful not to lose the Suspension Springs (23).
  • Remove the Suspension Springs (23) and clean them.

• Keep track of the parts′ orientation. They need to be replaced in the same way.

  • There is a small Jaw opposite a large Jaw, top and bottom. Clean the Jaws with cleaning fluid and a bristle brush (sold separately). Do not use a wire brush or a wire wheel.
    Brush in the same direction as the teeth, with the grooves.

  • Clean the V-Blocks (10, 13, 17, 20) in the same way

  • Lubricate the surface between the Jaws and V-Blocks with machine oil

  • Reassembly, being careful to place the large jaws opposite the small Jaws

PARTS LIST AND DIAGRAM

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 MANUFACTURER 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 THERE TO

Parts List

Part

|

Description

|

Qty

| |

Part

|

Description

|

Qty

---|---|---|---|---|---|---

1

| Base| 2| 20| Stretcher Lower V-Block|

1

2

| Handle| 2| 21| Stretcher Upper Jaw 2| 1
3| Handle Cover| 2| 22| Stretcher Lower Jaw 2|

1

4

| Back Block| 2| 23| Suspension Spring| 4
5| Back Shaft| 2| 24| Spring|

2

6

| Front Block| 2| 25| Screw M5X8| 8
7| Front Shaft| 2| 26| Pin|

4

8

| Jaw Cover| 1| 27| Washer 10mm| 4
9| Shrinker Hook| 1| 28| Washer 13mm|

4

10

| Shrinker Upper V-Block| 1| 29| C-Ring| 4
11| Shrinker Upper Small Jaw| 1| 30| C-Ring|

4

12

| Shrinker Lower Small Jaw| 1| 31| Screw M5X12| 4
13| Shrinker Lower V-Block| 1| 32| Washer 5mm|

4

14

| Shrinker Upper Large Jaw| 1| 33| Screw M5X25| 2
15| Shrinker Lower Large Jaw| 1| 34| Screw M8X20|

2

16

| Stretcher Hook| 1| 35| Screw M6X10| 2
17| Stretcher Upper V-Block| 1| 36| Hex Head Wrench 3mm|

1

18

| Stretcher Upper Jaw 1| 1| 37| Hex Head Wrench 4mm| 1
19| Stretcher Lower Jaw 1| 1| 38| Jaw Cover|

1

Assembly Diagram

Note:

• If product has no serial number, record month and year of purchase instead.
• Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. Specify UPC 792363688970 when ordering parts.

Limited 90 Day Warranty **

**

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation of exclusion may not apply to you.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with transportation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our inspection verifies the defect, we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our expense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

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