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  Automatic Blow-Stop System and How to Pre-set the Number of Blows

(1) What Is the Automatic Blow-Stop System

(2) How to Pre-set the Number of Hammer-blows

These three models have a new function that protects screws or bolts from over-tightening.
This practical function is the automatic blow stop system:
You can pre-set the number of blows to the optimum one for your application before starting operation.
And,  immediately after the  number of blows has reached to the pre-set one, the blow action can be 
automatically and instantly stopped, preventing you from over-tightening a screw or a bolt. 

Follow the steps 1 to 8 listed below to pre-set the number of hammer-blows.
There is an LED on the back of the machine, and its two lights (green and red) can help you to confirm completion of
each step.

1

While pulling the switch trigger to the full, install the battery
on the machine.
Note:
You must keep on pulling the switch trigger to the full until the
2nd step is completed.

After the lights blink ten times, they
come to be on continuously.

2

Softly hit the foot of the machine only once with a driver. etc.

The lights turn off.

The lights turn off.

Fig.1 

4

While pulling the switch trigger to the full, set the second digit
of desired number of blows by hitting the machine
as many times as the number of the second digit. (Do not hit the
machine if the second digit is zero.)
eg: If you set the number of blows to 12, hit the
      machine once.

On hitting the machine, the green light
turns on.

Fig.2 

Fig.2 

3

Release the switch trigger.

After the lights come to be on for
0.5sec., they turn off.

Fig.3 

6

While pulling the switch trigger to the full, set the first digit
of desired number of blows by hitting the machine
as many times as the number of the first digit. (Do not hit the
machine if the second digit is zero.)
eg: If you set the number of blows to 12, hit the
      machine twice.

On hitting the machine, the red light
turns on.

Fig.2 

5

Release the switch trigger.

Fig.3 

7

Release the switch trigger.

The lights turn on.

8

Remove the battery from the machine, and pre-setting is success-
fully completed.

The lights turn off.

Fig.3 

What to do

See
Fig.

State of the LED

Step

Fig.1 

Fig.2 

Fig.3

Summary of Contents for BTD042

Page 1: ...3 8 version of the existing model BTW062 Of course it is equipped with Automatic Blow Stop System and indication lamp showing complete and incomplete fastening like as BTD042 and BTD062 BTW072 BTD042...

Page 2: ...otector optional accessory can be installed for protecting work piece from the accidental scratch Rubber protector Easily operatable variable speed control switch Battery power warning lamp on B90117A...

Page 3: ...blowing time Note The required fastening torque N m can not be set with this system Push button type reverse switch Light and compact body Model No BTD072 BTD072 Overall length Net weight 162mm 1 09...

Page 4: ...he lights blink ten times they come to be on continuously 2 Softly hit the foot of the machine only once with a driver etc The lights turn off The lights turn off Fig 1 4 While pulling the switch trig...

Page 5: ...required Preset number of hammer blows X 2 X 20ms Note X2 means two blows per spindle rotation Consequently when the preset number of hammer blows is 10 the hammer actually blows 20 times Note ms micr...

Page 6: ...D062 BTW072 When Fastening High Tensile Bolt M6 When Fastening Standard Bolt M8 When Fastening High Tensile Bolt M8 Torque N m in lbs Torque N m in lbs Torque N m in lbs Time sec 0 0 0 25 20 10 15 5 0...

Page 7: ...ousing R and L Remove hammer case from housing by taking off 4 pan head screws M4x20 and disassemble housing R and L as illustrated in Fig 1 Fig 1 Pan head screws M4x20 Hammer case Housing 2 Disassemb...

Page 8: ...Spindle Cam groove top of spindle Opening for steel ball inserting Steel ball 4 8 x 2pcs BTD042 Steel ball 5 6 x 2pcs BTD062 BTW072 Steel ball 3 x 29 pcs Hammer 1R045 Large gear extractor L L 85mm L...

Page 9: ...ll bearing 6801LLB Internal gear case Fig 6 6 Fastening FET spacer with tapping screw ST 3x8 When assembling FET spacer the fastening torque of tapping screw ST 3x8 is approx 1 1 Nm 1 5 Nm 11Kgf cm 15...

Page 10: ...nd black Pass lead wires between pin and endbell holding rib Fixing LED lead wires with lead holder pass them between pin and endbell holding rib Pin Pin Boss Lead holder Fixing lead wires red black w...

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