Chicago Pneumatic SD25 user manual Tightening a Fastener, Loosening a Fastener

6159939020 SD25 Series Screwdrivers

2nd Column Field	Definition (continued from previous page)
Has auxiliary pushbutton	When checked, indicates that a screwdriver with multi-purpose (auxiliary)
	pushbutton is attached.
Locked Rotor Count	The total number of locked rotor faults the screwdriver has had.
Overtemperature Count	The total number of motor overheating faults the screwdriver has had. Such faults
	occur when the winding temperature is higher than 125 degrees Celsius.

Tightening a Fastener

For most fastening operations, make sure the screwdriver turns clockwise when running forward. For left-hand fastening capable screwdrivers, make sure the screwdriver turns counterclockwise when running forward.

Once the screwdriver is positioned on a part, you begin the rundown (cycle start) by:

•Pressing the trigger lever on handheld screwdrivers that have the push-to-start function disabled

OR

•Pressing the trigger lever on handheld screwdrivers that have the push-to-start function enabled, then pushing down firmly on the screwdriver

OR

•Asserting (activating) the remote start input on fixtured screwdrivers

The cycle start signal must remain active in order to complete the rundown. If the signal is interrupted

-if you release the trigger lever, for example - the screwdriver stops immediately. When the rundown is complete, you can see the status of the rundown by:

•The illumination of the LEDs on the screwdriver - green for acceptable torque/angle, yellow for low torque/angle, and red for high torque/angle

•The controller display

•VS software displays the final torque/angle

NOTE:	For details of asserting (activating) remote inputs and reading
?	the controller display, refer to the appropriate controller manual.

Loosening a Fastener

For unfastening operations, make sure screwdriver turns counterclockwise when running forward. For left-hand fastening capable screwdrivers, make sure the screwdriver turns clockwise when running forward.

Once the screwdriver is positioned on a part, you begin the rundown (cycle start) by:

•Pressing the trigger lever on handheld screwdrivers

•Asserting (activating) the remote reverse direction input on fixtured screwdrivers

The cycle start signal must remain active in order to complete the rundown. If the signal is interrupted - if you release the trigger lever, for example - the screwdriver stops immediately.

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