Avdel 0753 MkII, Instruction Manual

13

N o s e   J a w s

N o s e   A s s e m b l i e s

I M P O R T A N T

To avoid complete dismantling of the tool it is essential to check the orientation of the cursor before fitting

the nose equipment to the tool.  See ‘CURSOR’ section on page 10.

It is essential that the correct nose equipment is fitted to the tool to ensure both effective placing of the

fastener and SAFE operation of the tool. READ THE SAFETY INSTRUCTIONS page 4 carefully.

On speed fastening tools such as 0753 MkII type, the nose equipment always consists of three elements: a nose jaw, a mandrel and a
mandrel follower spring.  All three items are matched to the fastener being placed and to the hole size in the application.

To identify the correct combination of nose equipment to fit your tool first select a nose jaw by reading the section below then read the
mandrel section to select part numbers both for the mandrel itself and for the mandrel follower spring.  Mandrels and mandrel follower
springs are illustrated on page 12.

To fit the nose equipment, follow the ‘Loading the Tool’ procedure page 11.

Nose Jaws can be categorised into 7 different basic shapes as illustrated opposite, even though internal dimensions will vary
according to the fastener it is intended for.  Exact dimensions referring to the letters in the illustrations opposite are indicated in the
‘Nose Jaw Selection Tables’ on pages 15-16.

For a particular shape, there may be several options of end form giving access benefits or fastener placing enhancement.

Flat

•

Normal end form of all nose jaws.

•

Suitable on all applications with no access restrictions.

Universal

•

Designed for use with universal head Chobert

®

fasteners.

•

Can also be used with Briv

®

fasteners to obtain the highest possible clench.  Note this reduces the maximum grip range of the

Briv

®

fastener by approximately 0.015” (0.4mm).

Recessed

•

For use with Briv

®

fasteners ONLY.

•

It gives a higher clench than a flat end form but less than a universal end form, with no reduction of the grip range of the fastener.

Tapered

•

Available as shown in the ‘Nose Jaw Selection Tables’.

•

Allows greater accessibility than a flat end form and places the same range.

Head Forming

•

For use with Rivscrew

®

fasteners ONLY.

•

Deforms the head of the fastener to achieve good clench.

I M P O R T A N T

The wrong nose jaw could result in an incorrectly placed fastener or incorrect clench.