Description

1 COMPONENTS SELECTION

Select the specified hoses, ferrules and inserts using the most up- dated Catalogue release

2  HOSE CUTTING

Cut squarely the hose (cut angle must be < 3°). In order to ensure a correct cut (minimum rosetting and tulip effect due to the heat damage to the rubber), it is recommended to use the appropriate blade type:

•  wire spiral, large bore wire braided (> DN31) & Spirtex: use a smooth blade.

•  wire braided small bore (< DN31): use a serrated blade

Use of scalloped blade (with wavy edge) is acceptable for all hose types

3 SKIVING OPERATIONS

When skiving is required, set-up the skiving machine such that the front edge of the knife is set to the correct length (refer to crimping chart: tolerance +/-0.5 mm; +/0.02 inch). It is important to remove the maximum thickness of the rubber hose cover without damaging or displacing the reinforcement steel wires

4 FITTINGS MOUNTING

• In case of two-piece fittings, mount the ferrule fully onto the hose, and then push the insert fully into the hose.

• In case of one-piece fittings, mark the hose insertion depth (distance from the bottom of the ferrule to its end to be measured by calipers) on the hose cover and push the coupling fully into the hose up to the mark made on the hose cover. Especially in case of large hose sizes and lock type fittings the use of a proper pushing machine is recommended to facilitate this operation

5 DIE-SETS SELECTION FOR MANULI CRIMPING MACHINES

Choose the die-set closest to and smaller than the specified Crimping Diameter - 0.4 mm. The 0.4 mm correction is necessary to assure the requested crimping diameter, allowing some ferrule bulging among the dies, when crimping close to the dies closure diameter.