0850/0850-T1 User Manual
Matrix Machine Tool (Coventry) Limited 41 / 231
6.4 Checking the grinding wheel
1. Inspect a new grinding wheel before mounting it on the machine. Look for cracks, nicks or
signs of damage. If in any doubt about the soundness of the wheel then DO NOT USE IT!
2. Inspect wheel adaptor flange. Before mounting a wheel be sure the adaptor flange is sound
and the wheel can be clamped evenly. Check adaptor flanges for flatness and for proper
undercuts where the adaptor flanges join the cylindrical hole. Fillets must not exist and the
adaptor flanges must not exert intense pressures on the corners of the wheel hole.
3. Check wheel speed rating and is suitable for use on the machine.
6.5 Mounting the grinding wheel
CAUTION!
Only trained persons that have been instructed in the safe mounting
of grinding wheels are allowed to change and mount grinding wheels.
Use light pressure when mounting a wheel. Do not force a wheel on to a wheel adaptor. Use new
paper blotters.
Tighten the wheel adaptor screws in the sequence shown above using a 6mm A/F allen key. Gently
tighten each screw by the same amount and go round the sequence again several times until all 8
screws are tight enough to give a firm but not crushing pressure to the wheel.
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