Installation and Pre-Loading Instructions
- Ensure the machine drawbar is fully forward.
- Load mandrel body to machine spindle (using clock register or double-angle form to check concentricity)
- Fit end-locator to mandrel body (if not already fitted).
- Ensure double-angles are clean on both the mandrel body and sleeve.
- Place expanding sleeve on mandrel body.
- Ensure pre-load adjustment screw is retracted, and place expander pin in mandrel body. Screw the pin clockwise into the drawbar until the head of the pin contracts with the sleeve, ensuring the pin does not expand the sleeve.
- Load component onto the mandrel assembly in its working position.
- Screw expander pin clockwise into the drawbar until the sleeve grips the component.
- Back-off expander pin anti-clockwise until first available pre-load flat is adjacent to pre-load adjustment screw.
- Remove component and check loading clearance to ensure easy loading.
- Tighten pre-load adjustment screw ensuring expander pin has slight radial movement, to allow pin to slide freely.
- Finally, check by loading the component and operating the drawbar, ensuring the component is satisfactorily held. Ensure that the drawbar pressure is sufficient to prevent slippage.
- The mandrel is now ready for operation