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CAUTION:

Do not look directly into the light. Such actions could result in eye injury.

9.Using the hook

The hook is used to hang up the power tool to your waist belt while working.

CAUTION

When using the hook, hang up the power tool firmly not to drop accidentally.

If the power tool is dropped, it may lead to an accident.

When carrying the power tool with hooked to your waist belt, do not fit any bit to the tip of power tool. If the sharp bit such as drill is fitted to the power tool when carrying it with hooked to your waist belt, you will be injured.

Install securely the hook. Unless the hook is securely installed, it may cause an injury while using.

(1) Removing the hook.

Remove the screws fixing the hook with Philips screw driver. (Fig. 8)

Hook

Screw

Fig. 8

(2)Replacing the hook and tightening the screws. Install securely the hook in the groove of power tool and tighten the screws to fix the hook firmly. (Fig. 9)

Hook Screw

Fig. 9

OPERATIONAL CAUTIONS

1.Resting the unit after continuous work

After use for continuous bolt-tightening work, rest the unit for 15 minutes or so when replacing the battery. The temperature of the motor, switch, etc. will rise if the work is started again immediately after battery replacement, eventually resulting in burnout.

CAUTION:

Do not touch the metal parts, as it gets very hot during continuous work.

2.Cautions on use of the speed control switch

This switch has a built-in, electronic circuit which steplessly varies the rotation speed. Consequently, when the switch trigger is pulled only slightly (low speed rotation) and the motor is stopped while continuously driving in screws, the components of the electronic circuit parts may overheat and be damaged.

3.Use a tightening time suitable for the screw

The appropriate torque for a screw differs according to the material and size of the screw, and the material being screwed etc., so please use a tightening time suitable for the screw. In particular, if a long tightening time is used in the case of screws smaller than 5/16” (8 mm), there is a danger of the screw breaking, so please confirm the tightening time and the tightening torque beforehand.

4.Work at a tightening torque suitable for the bolt under impact

The optimum tightening torque for nuts or bolts differs with material and size of the nuts or bolts. An excessively large tightening torque for a small bolt may stretch or break the bolt. The tightening torque increases in proportionate to the operation time. Use the correct operating time for the bolt.

5.Confirm the tightening torque

The following factors contribute to a reduction of the tightening torque. So confirm the actual tightening torque needed by screwing up some bolts before the job with a hand torque wrench. Factors affecting the tightening torque are as follows.

(1)Voltage

When the discharge margin is reached, voltage decreases and tightening torque is lowered.

(2)Operating time

The tightening torque increases when the operating time increases. But the tightening torque does not increase above a certain value even if the tool is driven for a long time.

(3)Diameter of bolt

The tightening torque differs with the diameter of the bolt. Generally a larger diameter bolt requires larger tightening torque.

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