13
OPERATING INSTRUCTIONS
11. Auxiliary Handle
This hammer drill is equipped with an auxiliary
handle (H). For ease of operation, you can use the
handle with either the left or the right hand. The
handle can be locked in the two positions shown in
Fig.11.
To install the auxiliary handle:
a. Place the direction-of-rotation selector (E) in the
center lock position.
b. Loosen the auxiliary handle (H) by turning the
grip handle counterclockwise.
c. Align the raised portion on the auxiliary handle
with the grooves on gear box of the hammer
drill, then slide the auxiliary handle onto the tool as shown.
d. Securely tighten the auxiliary handle in place by turning the grip handle clockwise.
To remove the auxiliary handle:
a. Place the direction-of-rotation selector (E) in the center lock position.
b. Loosen the auxiliary handle (H) by turning the grip handle counterclockwise.
c. Remove the auxiliary handle from the tool.
WARNING
• For safety and ease of operation, securely tighten the auxiliary handle by turning the grip
handle clockwise before every use.
12. Bits
Installing Bits
a. Place the direction-of-rotation selector (E) in the
center lock position.
b. Open or close the chuck jaws to a point where
the opening is slightly larger than the shank of
the bit you intend to use.
c. Insert the bit.
d. Tighten the chuck jaws securely on the bit.
NOTICE:
Rotate the chuck body in the direction of
the arrow marked “GRIP” to close the chuck jaws.
Do not use a wrench to tighten or loosen the chuck
jaws.
WARNING
• Make sure to insert the drill bit straight into the chuck jaws. Do not tighten the chuck jaws if
the drill bit is inserted at an angle as shown in Fig. 12b. This could cause the drill bit to be
thrown from the hammer drill, resulting in possibly serious personal injury or damage to the
chuck.
12a
11
Loosen
Tighten
H
E
