Clarke CHT879 User manual

USER INSTRUCTIONS

ORIGINAL INSTRUCTIONS GC0918 ISS 1

LONG/SHORT ARM THREADED NUT

RIVETERS

MODEL NO: CHT879 & CHT880

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

INTRODUCTION

Thank you for purchasing this CLARKE Riveter. Suitable for rivet nuts in

aluminium, steel and stainless steel. The short arm version (CHT879) is ideal for

access in restricted spaces while the long arm version (CHT880) has an

adjustable stroke scale for improved accuracy.

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.

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.

STORING THE MANDRELS

Choose the rivet nut to be used for the job. The riveter is supplied with a

choice of different size mandrels to suit different rivets and a spanner for

changing mandrels.

The CHT879 model is supplied with M3, M4, M5, M6 & M8 mandrels.

The CHT880 model is supplied with M3, M4, M5, M6, M8, M10 & M12 mandrels.

• Always store the unused mandrels in the plastic cases provided complete

with their respective retaining nut.

• The mandrel and nut sizes are marked on each component.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

FITTING THE MANDREL

1. Remove the sheath,

locking ring and washer.

2. Slide the spring-loaded

sleeve down to expose the

hex shank

3. Screw your chosen your

chosen mandrel into the

hex shank as far as possible.

4. Release the sleeve.

• The sleeve will spring back

over the lower part of the

mandrel.

5. Replace the sheath,

locking ring and washer.

6. Fit the mandrel nut, finger

tight, and tighten the locking ring.

SETTING THE STROKE

• Model CHT880 has a stroke scale

to help achieve optimum

compression of the rivet. The rivet

nut needs to shorten

approximately 6mm during

compression when using

M6,M8,M10 & M12 rivets. Smaller

rivets may require a smaller

setting.

1. Set the angle of the arms so that

the scale reads 6mm.

Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

2. Screw a rivet onto the

mandrel until it is level with

the mandrel tip

3. Turn the sheath anti-

clockwise until the mandrel

nut touches the rivet.

4. Screw down the locking

ring so that it touches the

body of the rivet gun.

OPERATION

1. The hole diameter in the workpiece must be nominally larger than the

outer diameter of the rivet. Ensure the hole is perpendicular with the

surface of the workpiece components.

2. With the arms of the riveter open fully, insert the rivet nut into the hole in the

workpiece. Ensure that the riveter is perpendicular to the workpiece and

the flange of the rivet is pressed against it. Close the handles together to

compress the rivet nut.

3. Rotate the thumbwheel anticlockwise to unscrew the mandrel from the

installed rivet nut.

4. If the mandrel can not be easily removed from a rivet in this way, unscrew

the sheath leaving just the mandrel remaining in the rivet and use a rod

inserted through the hole in the mandrel to twist it anticlockwise to release

it from the rivet.

CHANGING MANDRELS

1. Use the spanner if necessary, to remove the mandrel nut, followed by the

sheath and its washer.

2. Slide the spring-loaded sleeve down to expose the hex shank so that the

mandrel can now be unscrewed from it.

3. If necessary, use a suitable rod passed through the hole in the mandrel to

undo it (anticlockwise). Hold the hex shank with a suitable spanner.

4. Replace with the new mandrel while the sleeve is held back. When the

mandrel is fully home, release the sleeve which will spring up and stop the

mandrel from turning.

5. Refit the sheath, washer & mandrel nut, ensure they are all tight before use.

This manual suits for next models

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