ACDelco ARI20120 Manuel Informations Du Produit page 12

NOTE
Due to the auto shut-off function, if tool is repeatedly operated on
and off in a short time frame, the MCU will determine it as being over current
resulting in tool shut down. This phenomenon occurs most frequently in the first
torque stage.
1. After continuous use, allow the impact wrench to sit idle for 15 minutes before
replacing the battery. The temperature of the motor, switch, etc., will rise if the
work is started again immediately after the battery has been changed, eventually
resulting in burned-out.
2. Place the point of the bolt in the socket. Keep the tool pointed straight at the bolt.
3. Apply forward pressure to the tool to prevent the socket from slipping off the bolt.
4. To start, turn impact wrench/driver on. Always check torque with a torque wrench.
The fastening torque can be affected by many factors including the following:
Voltage: Low voltage due to a nearly discharged battery will reduce the fastening
torque.
Socket Size: Failure to use the correct socket size will cause a reduction in fastening
torque.
Variable Speed Trigger Switch: Operating the tool at a reduced speed will reduce the
fastening torque.
Bolt Size: Larger bolt diameters generally require higher fastening torque. Fastening
torque will also vary according to length, grade, and torque coefficient.
Material: The type of material and surface finish of the material will affect fastening
torque.
Fastening Time: Longer fastening time results in increased fastening torque. Using a
longer fastening time than recommended could cause the screws to be overstressed,
stripped or damaged.
NOTE
Continuous use in variable speed range is not recommended. It may
damage the switch and should be avoided.
NOTE
When change the position of the control button, making sure the variable
speed switch is released.
NOTE
The first time the tool is run after changing the direction of rotation, you
may hear a click on start up. This is normal and does not indicate a problem.
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