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Fig 4.
Fig 5.
3. Adjusting the drill bit position, make the top of drill bit touches 6# (Terminal) firmly, 4# (spring leaf)
pinch the groove of drill bit
(See Fig 4. & 5.)
4. Rotate 39# (Locknut), make 36# (Blade Holder) pinch the drill bit firmly
5. Pull out 40#(the Hold Accessory)and erecting it in 34#(Stand Socket). CAREFULLY make sure
that the heave on 35# (Positioner for Blade) inserts in the groove on 34# (Stand Sockets) , move
the Positioner for Blade from side by side, begin to sharpen. (See Fig 6.)
Where there is no grinding sound between the grinding wheel and the drill, pull out 35#
Accessory and turn it by 180°, and then conduct grinding; the procedure is the same as above
mentioned.
6. Place 35# Accessory on the 14# Spacer, facing back angle of the drill, and turn 35# Accessory
to the left and to the right; conduct grinding. On condition that no grinding sound between
the grinding wheel and the drill, pull out 35# Accessory and turn it by 180°, and then conduct
grinding; the procedure is same as above mentioned; the operation is finished. (See Fig 7.)
Fig 6.
Before Grinding
After Grinding
