MBM Corporation Paper Drill 200 single spindle - Manual (Page 7)

7
MODEL 200 BENCH MODEL DRILL
REMOVAL, INSTALLATION, AND ADJUSTMENT OF DRILL BITS
A. To remove a drill bit from the machine:
1. Remove the release hole guard from the chuck (C) (Illustration No.2) by lifting the small end of
the guard and unwinding from the chuck.
2. Insert the chuck release key in the hole in the chuck with the flat end downward and rotate the
handle until the drill bit is free.
B. To install a drill bit in the machine:
1. Grasp the drill bit and insert the large end into the chuck with upward pressure.
2. Place a non- metallic object (block of wood, etc.) under the drill bit and secure it by depressing
the handle using adequate pressure to “seat” the drill bit.
3. Check the concentricity of the drill bit by momentarily turning on the machine. If the
concentricity is not satisfactory, remove the drill bit, rotate slightly and repeat the above steps.
C. To adjust the drill bit and table height:
1. Loosen the lock knob (B) (Illustration No. 4).
2. Depress the handle until maximum table height is achieved.
3. Turn the knob (B) until the desired table height is achieved. Counterclockwise rotation of the
knob will increase table height and decrease the distance between table and drill bit.
4. Once the desired table height is achieved, hold knob (B) and tighten the lock knob (B) against
the Upright Assembly to secure the adjustment.
NOTE: It is recommended that a piece of chipboard or similar material be placed on the table under the
material being drilled and the drill bit adjusted to drill partially through this material. This will
prevent scarring of the drill strip and dulling and flaring of the drill bit.