Page 141 - PRESS-FIT SYSTEMS FOR DIVERSE APPLICATIONS

7. DRI-SLIDE LUBRICANT
Use of S135 Dri-Slide lubricant is essential when jointing large sized fittings. The pressing
profile groove of the sling jaws should be cleaned and lubricated after every 50 joints for
42mm to 76.1mm sizes, and every 5 joints for 108mm. Dri-Slide should also be applied
between the main sling arms and the moving segments; and along the pivot pins between
the arms. Wipe clean any excess lubricant so that it does not come into contact with the
fitting O ring.

NOTE: Dri-Slide lubricant should never be used to lubricate the O ring.

8. PRESS THE JOINT:
Mount the jaws/sling jaws over the bead
at the mouth of the fitting. With the tool
fully supported and not hanging from
the pipework, and with your hands safely
away from the joint, press the trigger or
button to start the jointing cycle. When
the jaws/sling jaws fully enclose the mouth
of the fitting, the joint is complete. The
jaw should then be released from around
the fitting.
15 to 35mm. Pegler Yorkshire recommend the use of
Sling Jaws for sizes 42 to 108mm.

NOTE: The 108mm joint is not fully made until the fitting has been through
two pressing operations.

NOTE: Maintain a 90° angle between the tube and jaws at all times, this is to ensure
the integrity of the joint as well as protect the operator from ‘kickback’.

NOTE: The pressing operation should only be carried out when the tube is adequately
supported by brackets, not when the tube is suspended in the fitting socket alone.

NOTE: Allow press-fit jaws to be attached without hindrance.
9. CHECK THE JOINT:
Inspect the finished joint making sure all is in order, when satisfied the joint has been made correctly mark the joint as complete.

The socket depth mark you made indicates that full socket depth has been maintained throughout the pressing cycle.
The fitting and pipe bear the witness marks from your jaws/sling jaws.
We recommend all systems are thoroughly pressure tested before hand over to end user. Refer to page 110 for detailed
recommendations, particularly regarding Carbon Steel installations.

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