Chuck removal, To retighten a loose chuck, Operation – Sears 315.10186 User Manual

Page 14

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OPERATION

CHUCK REMOVAL

See Figures 12-14.

■

Lock the switch trigger by piecing the direction of rotatbn

seiector in center position. See Figure 5.

■

Insert a 5/16 inch or iarger hex key into the chuck of

your driif and tighten the chuck jaws securely.

■

Tap the hex key sharply with a mallet in a clockwise

direction. See Figure 12. This wilt loosen the screw in
the chuck for easy removal.

■

Open chuck j'aws and remove hex key. Remove the

chuck screw by turning It In a clockwise direction.

See Figure 13.

Note: The screw has left hand threads.

■

I nsert hex key in chudc and tighten chuck |aws securely.

Tap sharply With a mallet in acounterdodwise direction.
This will loosen chuck on the spindle. It can now be

unscrewed by hand. See Figure 14.

TO RETIGHTEN A LOOSE CHUCK

The chuck may become loose on spindle and develop a
wobble. Periodicafiy check the chuck screw for tightness.

To tighten, follow these steps:

■

Lod( the switch trigger by pladr^ the direction of rotation

selector In center position. See Figure 5.

■ Open the chuck jaws.

■

Insert hex key into chuck and tighten chuck jaws

securely. Tap hex key sharjsty with a mallet in a ciodwise
direction. This will tighten chuck on the spindle.

■ Open the chuck jaws and remove hex key.

■ Tighten the chuck screw.

Note: The chuck screw has left hand threads.

CHUCK JAWS

Fig. 14

Fig. 13