8 Maintenance
62
Operating Instructions Midwest
Process
✔ The expiry date of the chuck tester (A) has not elapsed.
1. Insert the chuck tester into the FG clamping system [ → 39].
2. Tighten the chuck tester until the marking ring appears (withdrawal
force: 22 N)
Does the chuck tester slide out of the chuck before the marking ring
appears?
CAUTION! The chuck is defective and the secure fit of the bur is not
guaranteed. This may cause injury!
1. Do not use the product.
2. Have the clamping system replaced by Midwest.
Tip: Record the time and result of the check for your own information.
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E Pro / Midwest
E Plus / Midwest
66 04 206 D3686.201.01.04.02
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E mini