English
5.Regulating the number of rotations and hammering (Fig. 3)
This Rotary Hammer is equipped with a
The scale ‘1’ of the dial is designed for a minimum speed with the number of 240 rotations per minute and 1320 times of blow per minute. The scale ‘6’ is designed for a maximum speed with the number of 480 rotations per minute and 2650 times of blow per minute.
CAUTION:
Do not adjust the dial during operation. Doing so can result in injury because the Rotary Hammer must be held by only one hand, disabling the steady control of the Rotary Hammer.
HOW TO USE THE ROTARY HAMMER
1. How to drill holes (Fig. 4)
(1)Pull the switch trigger after applying the drill bit tip to the drilling position.
(2)It is unnecessary to forcibly press the rotary hammer main body. It is sufficient to slightly press the rotary hammer to an extent that shavings are freely discharged.
CAUTION:
Although this machine is equipped with a safety clutch, if the drill bit becomes bound in concrete or other material, the resultant stoppage of the drill bit could cause the machine body to turn in reaction. Ensure that the main handle and side handle are
gripped firmly during operation.
2.How to chisel or crush (Fig. 5)
By applying the drill bit tip to the chiseling or crushing position, operate the rotary hammer by utilizing its empty weight.
Forcible pressing or thrusting is unnecessary.
3.When drilling at “rotation + hammering”:
CAUTION:
If you switch the selector lever during motor rotation,
the tool can start to rotate abruptly, resulting in unexpected accidents. Be sure to switch the selector lever when the motor is at a complete stop.
(1)Switching to “rotation + hammering”
(a)Push the button, release lock and turn the selector lever clockwise.
(b)Align ▲ of the selector lever and 
of the lever holder as illustrated in Fig. 6.
(c)Release the button to lock the selector lever.
NOTE:
Turn the selector lever (do not push the button) to check if it is completely locked and make sure that
it does not turn.
4.When chipping and chiseling at “hammering”:
CAUTION:
◯ If the selector lever is switched during motor rotation, the tool can start to rotate abruptly, resulting in unexpected accidents. Make sure to switch the selector lever when the motor is at a complete stop.
◯ If the bull point or cold chisel is used at the position of ”rotation + hammering”, the tool can start to
rotate, resulting in unexpected accidents. Make sure that they are used at the position of ”hammering”.
(1)Switching to ”hammering”
(a)Push the button, release lock and turn the selector lever counterclockwise.
(b)Align ▲ of the selector lever and 
of the lever holder as illustrated in Fig. 7.
(c)Release the button to lock the selector lever.
NOTE:
Turn the selector lever (do not push the button) to check if it is completely locked and make sure that it does not turn.
(2)When fixing working positions of tools such as cold chisel, etc.,
(a)Push the button, release lock and turn the selector
lever.
Align ▲ of the selector lever and 
of the lever holder as illustrated in Fig. 8.
(b)Release the button to lock the selector lever.
(c)Turn the grip as illustrated in Fig. 9 and fix the tool to the desired working direction.
(d)Switch the selector lever to “hammering”
according to the procedures mentioned in the above item (1) and secure the position of the tool.
5. Install the stopper (Fig. 10)
(1)Loosen the side handle and insert the straight portion of the stopper into the handle bolt hole.
(2)Move the stopper to the specified position and
rotate the grip of the side handle clockwise to fix the stopper.
6.Warming up (Fig. 11)
The grease lubrication system in this unit may require warming up in cold regions.
Position the end of the bit so makes contact with the concrete, turn on the switch and perform the warming up operation. Make sure that a hitting sound is produced and then use the unit.
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.
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.
(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)
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”.
8