English
CAUTION:
Application of force more than necessary will not only expedite work at all, but will deteriorate the tip edge of the drill bit and reduce the service life of the rotary hammer in addition.
Drill bit may snap off while withdrawing the rotary hammer from the drilled hole. For withdrawing, it is important to use a pushing motion.
Do not attempt to use the rotary hammer in the rotation and striking mode with the drill chuck and chuck adapter attached. This would seriously shorten the service life of every component of the machine.
5.When driving wood screws (Fig. 21)
(1)Selecting a suitable driver bit
Employ
(2)Tightening wood screws
Prior to tightening wood screws, make pilot holes suitable for them in the wooden board. Apply the bit to the screw head grooves and gently drive the screws in the holes.
Bit
Socket
Chuck adapter
Front cap
Grip
Fig. 21
CAUTION:
Exercise care in preparing a pilot hole suitable for the wood screw taking the hardness of the wood into consideration. Should the hole be excessively small or shallow, requiring much power to drive the screw into it, the thread of the wood screw may sometimes be damaged.
6.Using depth gauge (Fig. 22)
(1)Loosen the knob on the side handle, and insert the depth gauge into the mounting hole on the side handle.
(2)Adjust the depth gauge position according to the depthoftheholeandtightentheknobboltsecurely.
Mounting hole
Depth gauge
Side handle 
Fig. 22
7.How to use the drill bit (taper shank) and the taper shank adapter
(1)Mount the taper shank adapter to the rotary hammer. (Fig. 23)
(2)Mount the drill bit (taper shank) to the taper shank adapter. (Fig. 23)
(3)Turn the switch ON, and drill a hole to prescribed depth.
(4)To remove the drill bit (taper shank), insert the cotter into the slot of the taper shank adapter and strike the head of the cotter with a hammer supporting on the rest. (Fig. 24)
Grip
Drill bit
Taper shank |
|
adapter | Front cap |
| Fig. 23 |
Taper shank
Cotter adapter
Rests
Fig. 24
17