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Dismantling 1. Open the lock screws. First release the set screws lightly in the indicated sequence, then release completely. 2. Release the clamping screws indiagonal sequence slightly before completely releasing. This prevents the total tension of the diaphragm from working on the last clamping screw to be released and causing a jamming effect.Once a locknut has been secured on a spindle thread, after removal it may only be used again on the samespindle. Adjustment processes carried out between the spindle and locknut can otherwise lead to problems when using on a different spindle. A set of mounting instructions is pro-vided with every delivery for first-time users. Further copies can be provi- ded on request. Mounting from locknut size MSW 72.60 1. Carefully clean the locknut and connecting elements and wet slightlywith low-viscosity machine oil. 2. Screw the locknut onto the spind-le thread. Wait before screwing it in completely. The set screws should not be ahead the end face (Fig. 4). 3. Tighten the clamping screwsevenly in diagonal sequence while turning the locknut backwards and forwards, until flank play is almost eli- minated (indicated by a tight fitting feel when turning the locknut Fig. 5). 4. Now screw the locknut against theend face until contact. Then tighten the clamping screws evenly to fix the locknut.5. Now initially tighten the set screwswith a high pretension moment in the indicated sequence step by step against the end contact surface, then release again and tighten with the prescribed pretension moment (Fig. 6). This sequence prevents sub- sequent seizure at the contact surfaces (thread flanks, end contact surfaces). 6. Then tighten the lock screws andcheck the clamping screws again forthe prescribed tightening torque.Tighten if necessary.
Lockingscrew Set screw Clamping screw Fig. 10 Fig. 9 Fig. 8

Precision Locknut heavy MSW - 38721 9