9
ZCT8850CE Rev. C (03/20)
Overloading
If the tool is overloaded for any reason that causes
excessive heating of switch or battery, the internal
electronics will cause the tool to stop working. This is a
safety feature that will help to prevent overheating of the
tool. Release the trigger to resume operation.
— Battery over temperature – indicated by all four
LED lights flashing on the battery. This means
the internal temperature of the battery is too
high, and it will stop operation to prolong battery
and tool life. The lights will continue to flash for
four (4) minutes after each trigger pull until the
temperature lowers to an acceptable level. Fan
cooling can be used to speed battery or tool
cooling. Note: The electronics have been tuned
to get optimal performance /capacity from the
battery prior to reaching the temperature limit.
When this condition occurs, usually the battery
will be very close to needing recharging. Placing
the battery on the charger will activate a fan
inside the charger to help with cooling, and
recharge will start immediately after an
acceptable temperature is reached.
— Tool over temperature – indicated by the
illumination LED flashing. When the tool is used
under heavy load continuously, the internal
temperature of the switch may be reached, and
the tool will temporarily stop working. Allow the
tool to air cool to resume operation.
— Tool current limit exceeded – indicated by the
illumination LED flashing and tool stopping
operation while the trigger is fully depressed.
When the tool is used continuously in heavy
duty application, the current limit may be
reached, causing shut-down of the tool power.
Tool operation can be resumed immediately
after releasing the trigger.
Forward/Reverse Switch
The forward/reverse switch determines the rotating
direction of the anvil, either clockwise or
counterclockwise.
A
B
Figure 2: Forward/Reverse Switch
A – Depress switch for reverse or
counterclockwise rotation.
B – Release switch for forward or clockwise
rotation.
To change the direction of anvil rotation:
1. Be sure the impact wrench is stopped and not
operating.
2. The position of the forward/reverse switch
determines the direction of the anvil rotation. Switch
positions, when tool is positioned as above, are:
— Forward (B above), the anvil rotates clockwise,
— Reverse (A above), the anvil rotates
counterclockwise.
3. The switch must be in either the forward or the
reverse position to operate. Center position locks the
switch off.
Trigger
Depress the trigger to rotate the anvil. The lever must be
in a forward or reverse position to operate. The trigger
can be locked in the OFF position. Locking the trigger in
the OFF position helps to reduce the possibility of
accidental starting the impact wrench when not in use.
Place the lever in the center position to lock the trigger.
Lock the trigger when not in use.
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