| Possible causes | Remedy |
Mounting not secure.
| Check that the MH8 is correctly mounted to the shank and that the screws are secure. Check the clamping mechanism in the CMM quill. |
MH8 not fully locked.
| Ensure that the lock lever is turned fully clockwise. |
Excessive force imparted to probe after locking.
| Unlock and re-lock the MH8. |
MH8 overloaded.
| Use only with the specified probe and extension combinations. |
Faulty probe.
| Check by substitution. |
| MH8 worn or damaged. | Check by substitution or return to Renishaw or your supplier. |