Aerfast TS55-AC Mode D'emploi page 13

Change the Driving Bit
Note: Use the bit provided by the manufacturer.
Conduction Ass'y
Bit
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(2)
(1)
Ring-Pull
11
1. (1) Push the quick release button
backward first.
(2) then press down to loose
conduction ass'y.
2. Remove conduction
ass'y.
3. Pull the ring-pull and
replace the bit.
After replacement ﹐
assemble conduction
ass'y and lock in
screw.