Clarke METALWORKER CMSSCS Manuale utente

USER INSTRUCTIONS

ORIGINAL INSTRUCTIONS GC06/23-Rev 1

METAL SHRINKER/STRETCHER SET

MODEL NO: CMSSCS

PART NO: 7610950

INTRODUCTION

Thank you for purchasing this CLARKE product.

The CMSSCS Metal Stretcher/Shrinker Set is a handy pair of tools for sheet

metal fabricators who need custom, curve shaped metal straps, trim and

flanges for auto body repair and general sheet metalwork.

Before attempting to use this product, please read this manual thoroughly and

follow the instructions carefully. In doing so you will ensure the safety of yourself

and that of others around you and you can look forward to your purchase

giving you long and satisfactory service.

INVENTORY

A) Shrinker Body c/w Dies

B) Stretcher Body c/w Dies

C) Levers

SPECIFICATIONS

Max thickness-aluminium

.......................16Ga/1.5mm

Max thickness-mild steel

........................18Ga/1.2mm

Max thickness-Stainless Steel

.......................20Ga/1.0mm

Mounting bolt hole size- 3/8”(x2)

SAFETY PRECAUTIONS

To protect against injury observe the following precautions when using this

product. Clarke International is not responsible for misuse of the equipment.

• ALWAYS secure the tool in a bench vice before use.

• ALWAYS keep the work area free of obstructions.

• NEVER try to bend material other than hot-rolled mild steel.

• NEVER modify the tool or use a handle extension arm other than the

one provided.

WARNING: THE USER MUST FOLLOW ALL INSTRUCTIONS WITHIN THIS

INSTRUCTION BOOKLET

ASSEMBLY

The shrinker/stretcher set

just requires final assembly

by installing one lever into

each tool body and

securing with the pre-

installed M5 setscrews.

Tools required;

Hex wrench 3mm

MOUNTING

The shrinker and stretcher are portable and can be clamped in a vice for use.

However, to take full advantage of the set and to get 360oaccess to your

workpiece, you can mount these tools to a stand intended for a bench

grinder. To prevent tipping, be sure to fasten the stand to the floor.

MOUNTING THE SHRINKER AND STRETCHER

1. Clean and lubricate shrinker and stretcher as outlined in SETUP.

2. Determine where you want to mount the tools.

3. At the mounting location, center punch two points 2½" apart, and drill two

⅜" diameter holes at these locations.

4. Secure the shrinker/stretcher to your workbench or grinder stand with two

bolts or cap screws of appropriate length to ensure that the fasteners

thread into the casting at least ½".

SETUP

1. Raise the handle, loosen the knob

bolts and unclip die retainer from

the pressure arm. Slide the die

assembly away from the casting

(see Figure 3).

2. Grasp the die retainer clip and

pull the upper jaw from the die

housing.

NOTE: Be careful not to lose any springs.

3. Lay out the die components as

shown in Fig 4.

4. Clean grease, metal shavings,

and debris off the tool and dies,

then lightly oil.

NOTE: Never use a wire wheel,

buffer, sand blaster, or

sandpaper on jaw teeth.

otherwise, tooth damage

may occur. It is better to let

the jaws soak in mineral spirits overnight, and then use a wire

brush or a fine dental pick to remove debris.

Figure 4 shows die and jaw assembly order.

5. Use Figures 4-5 as a guide to

arrange the die parts in the

correct order and reassemble.

6. The shrinker/stretchers are ready

for operation.

OPERATION

The Shrinker/Stretcher set is designed to create long, compound-curved metal

pieces out of a single strip of metal without multiple splice points.

Operation consists of inserting a

piece of metal in the tool and pulling

down on the lever to compress or

expand the metal at various points

along the length of the metal strip,

creating the bend or shape needed.

During the bending process, as you

work along the strip of metal, the

clamping pressure exerted by the

lever can be adjusted to create

curves with a nice smooth arch.

The lever stop bolt (see Figure 6) can be adjusted with a 3mm wrench to allow

the clamping lever to stop at the same location each time the lever is pulled

down.

NOTE: If the metal splits during the shrinking/stretching procedure, it is

typically because too much bend is trying to be achieved with

just a few heavy pulls of the lever. To avoid splitting, make pulls

lighter and increase number of pulls on lever. If metal still splits,

the radius of the desired bend may be too small for the metal, or

the metal is of the wrong type.

USING THE SHRINKER/STRETCHER

1. Verify the jaw teeth are free of

debris.

2. Determine your job

requirements:

Using the shrinker, a curve in the

metal is created by compressing

the inside radius of a curve (see

Figure 7).

NOTE: Shrinking/stretching will create small teeth marks from the jaws

and cannot be avoided. Limit the depth of any teeth marks by

making more, lighter pulls with the lever.

CAUTION: WHEN THE TOOLS ARE NOT IN USE OR WILL BE PLACED IN STORAGE FOR

A PERIOD OF TIME, WE HIGHLY RECOMMEND REMOVING THE DIES FROM THE

TOOLS. IF THE LEVER IS ACCIDENTLY USED AND THE DIE JAWS CLAMP DOWN

AGAINST ONE ANOTHER INSTEAD OF A WORKPIECE, THE GRIPPING JAW TEETH

MAY BE DAMAGED.

COMPONENT PARTS

ITEM DESCRIPTION ITEM DESCRIPTION

1Stretcher body 18 Lower V-block(Shrinker)

2Fulcrum arm pin 19 Upper jaw (Left-Shrinker)

3External circlip 10mm 20 Lower jaw (Left-Shrinker)

4External circlip 12mm 21 Retainer clip (shrinker)

5Finger bolt M5 22 Die retainer (shrinker)

6Pressure arm pin 23 Shrinker body

7Rivet 24 Cross head screw M4 x 12

8Pressure arm 25 Upper V-block (stretcher)

9Extension spring 26 Upper jaw (Right - stretcher)

10 Bolt M8 x 35 27 Cross head screw M4 x 30

11 Set-screw M5 x 8 28 Lower jaw (Right - stretcher)

12 Fulcrum arm 29 Lower jaw (Left - stretcher)

13 Lever 30 Lower V-block (stretcher)

14 Upper V-block (shrinker) 31 Die retainer (stretcher)

15 Compression spring 32 Retainer clip (Stretcher)

16 Upper jaw (right-shrinker) 33 Upper jaw (Left - stretcher)

17 Lower jaw (right-shrinker) 34 Flat washer 4mm

COMPONENT PARTS

GUARANTEE

This product is guaranteed against faulty manufacture for a period of 12

months from the date of purchase. Please keep your receipt which will be

required as proof of purchase.

This guarantee is invalid if the product is found to have been abused or

tampered with in any way, or not used for the purpose for which it was

intended.

Faulty goods should be returned to their place of purchase, no product can

be returned to us without prior permission.

This guarantee does not effect your statutory rights.

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