Fig. 11

CAUTION:

When the warming up operation is performed, hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed drill bit.

USING DRILL CHUCK, CHUCK ADAPTER

Note that this machine can be used at “rotation only” if separately sold parts such as drill chuck and chuck adapter are attached. Use it with the selector lever positioned at “rotation + hammering”.

CAUTION:

During operation, be sure to grip the handle and the side handle firmly to prevent your body from swaying.

(1)Switching to “rotation + hammering”

For switching to “rotation + hammering”, follow the same procedures mentioned in [3. When drilling at “rotation + hammering”].

(2)Attaching chuck adapter to drill chuck (Fig. 14)

(a)Attach the chuck adapter to the drill chuck.

(b)The SDS max shank of the chuck adapter is equivalent to the drill bit. Therefore, follow the same procedure as [How to install tool] for attaching and detaching.

Front cap

DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS

1. When a taper shank adapter is used. (Fig. 12)

(1)Install drill bit with taper shank in the taper shank adapter.

 

Indicating groove

 

shows standard

Taper shank adapter

depth matching

 

the outside

 

diameter of the

Drill bit (taper shank)

anchor for

drilling.

 

Fig. 12

(2)Turn the power on and drill a base hole to the depth sounded by indicating groove on the drill bit.

(3)After cleaning out dust with a syringe, attach the plug to the anchor tip and drive in the anchor with a manual hammer.

(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 manual hammer supporting on a rest. (Fig. 13)

Cotter

Taper shank adapter

Rest

Fig. 13

Drill chuck

Part of SDS

 

 

max shank

Grip

Chuck adapter

Fig. 14

(3)Drilling

(a)Even if you apply more-than-required pressure to the machine body, drilling can never be performed as quickly as you expect. Applying more force or pressure to the machine body than what is needed, on the contrary, damages the drill tip, resulting in the declined working efficiency and shortened life of this machine.

(b)A drill can snap sometimes when drilling is almost finished. It is important to relax your thrusting pressure when drilling is nearing the end.

HOW TO HANDLE A CORE BIT

When a core bit is used, large diameter holes and blind holes can be drilled. In this case, use optional accessories for core bits (such as a center pin and core bit shank) for more efficient operation.

1.Mounting

CAUTION:

Prior to mounting a core bit, always disconnect the

plug from the power supply receptacle.

(1)Mount the core bit on the core bit shank. (Fig. 15) Before that, feed oil to the screw portion of core bit shank for easy dismounting.

7