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f) Variable Speed Switch
To be able to operate the variable speed switch (7), the forward / reverse control button (6) must not be at its central position (in this
position the variable speed switch is blocked).
The number of revolutions of the drive depends on the degree to which the variable speed switch (5) is pressed. The speed can be adjusted
continuously from standstill up to maximum number of revolutions. The built-in LED lights up when the variable speed switch is pressed. If the
variable speed switch is released, the drive will be slowed down.
Continuous use in variable speed range is not recommended. It may damage the switch and should be avoided. For maximum tool
life, use variable speed only for starting holes or fasteners.
g) Selecting the gear speeds (“HIGH”/ “LOW”)
The dual range gear shifter (2) is provided on the top of the cordless screwdriver. By means of this switch the two speeds can be selected.
LOW speed, low number of revolutions, high torque
HIGH speed, high number of revolutions, low torque
The dual range gear shifter for selecting the two speeds may only be activated, if the drive of the cordless screwdriver has
stopped completely. Otherwise, the drive might be damaged.
If activating the switch cannot set one of the two speeds, the driving toothed wheels are probably in an unfavourable position.
In this case, activate the variable speed switch slightly so that the toothed wheels move a little bit.
