Jcb DD12Li Safety And Operating Manual - 5. Chuck Adjustment

SO53 3LE

Customer Helpline 0845 600 5526

4

5

5. CHuCK aDJuStMEnt 

(See 

3

)

To open the chuck jaws rotate the 

front section of the chuck. Insert 

the drill bit between the chuck jaws 

and rotate the front section in the 

opposite direction. Ensure the drill 

bit is in the centre of the chuck jaws. 

Finally, firmly rotate the front chuck 

section in the opposite directions. 

Your drill bit is now clamped in the 

chuck.

6. tORquE aDJuStMEnt 

(See 

4

)

(Screw driving force of your drill 

driver)

The torque is adjusted by rotating 

the torque adjustment ring. The 

torque is greater when the torque 

adjustment ring is set on a higher 

setting. The torque is less when the 

torque adjustment ring is set on a 

lower setting.

Make the setting as follows:

1 - 4    for driving small screws

5 - 9    for driving screws into soft 

material

10-15  for driving screws into soft 

and hard material

   for heavy drilling

7. autOMatiC SPinDLE 

LOCK (See 

5

)

The automatic spindle lock 

allows you to use it as a regular 

screwdriver. You can give an extra 

twist to firmly tighten a screw,