0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 34 / 231
5.3 Dressing Spindle
The dresser spindle is fitted with an expanding collect to aid the installation and removal of the
dressing disc or roll tool with a 52mm diameter bore.
Diamond disc/roll location face
Collet expand/retract screw (M6)
Pin spanner location holes
WARNING
Never operate the dressing spindle with just the expanding collet fitted or the
collet will be damaged.
Procedure for installation of the dressing disc/roll
1. Ensure the location face, collet and dressing tool bore are thoroughly clean before proceeding
to install the dressing tool.
2. Slide the dressing disc/roll onto the collet. If you cannot slide the disc/roll easily then slacken
the M6 collet screw using a 5mm allen key.
3. Push the disc/roll along the collet until it locates to the datum face.
4. Using the supplied pin spanner hold the collet steady and then tighten-up the M6 screw using
the 5mm allen key. DO NOT overtighten the M6 screw as you could damage the collet or be
unable to remove the dressing disc/roll later on.
5. Check the dressing disc/roll for axial and radial runout after you have installed it.
Procedure for removal of the dressing disc/roll
1. Using the supplied pin spanner hold the collet steady and then slacken the M6 screw using
the 5mm allen key.
2. Carefully slide the dressing disc/roll off the collet without removing the collet.
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