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10
Using the impact wrench
The impact wrench can be used for driving nuts and
bolts using an impact socket and is suitable for many
DIY applications.
Operating the Impact Wrench
Correct fastening torque may be determined by the kind
of bolt, the size of the bolt or the material of the workpiece.
It is recommended that a test is performed prior to the final
operation, in order to determine the fastening time for the
nut or bolt you are using.
When using the impact wrench follow the below procedure:
1. Hold the tool pointed straight at the nut or bolt.
2. Depress the switch and fasten for the fastening time.
3. After fastening, always check the torque with a torque
wrench.
Impact Time
Many variables exist that will cause the available torque of
the fastener to vary considerably. The optimum impact time
is approximately 6 seconds.
Note. Using an universal joint or extension bar may reduce
the fastening force of the impact wrench and thus the
application may require longer fastening time.
WARNING. The machine and the tool attachments
may become warm when being used for a long time. If
this occurs turn the machine off and place it in a safe
environment and allow to cool down. Do not attempt to
touch the metal blades after prolonged application as they
will be hot and may burn. Do not overload the machine and
always allow it to cool between the individual work steps.
WARNING. Wear safety goggles, a dust mask and ear
defenders.
WARNING. Do not use the impact wrench in wet or
damp conditions.
Trouble shooting
Trouble Problem Suggested remedy
Tool will
not start
Power cord
not plugged in
Ensure that the cord
is connected to the
power supply
Power fault,
fuse or circuit
breaker tripped
Check the
power supply
Cord damaged
Use authorised
service centre to
repair or replace
Faulty switch
Use authorised
service centre to
repair or replace
Faulty motor
Use authorised
service centre to
repair or replace
Carbon brush
worn off
Replace the
carbon brush
Poor
performance
Extension cord
too long or
undersized
Use extension cord
heavy enough to
carry the current
Visible spark
Use authorised
service centre to
repair or replace
Tool is
overheating
Short of
lubricant
Use authorised service
centre to add lubricant
Overtime
running
Turn off the tool and
let it cool down to room
temperature