DeWalt DC740 Manual De Instrucciones página 26

E N G L I S H
• Place the bit in the chuck as far as it will go and
lift slightly before tightening.
• Tighten firmly by turning the sleeve clockwise.
• To remove the bit, proceed in reverse order.
Selecting the operating mode or adjusting the
torque (fig. D)
The collar of this tool has 15 positions for the
adjustment of the torque to suit the size of the screw
and the workpiece material. For torque adjustment,
refer to the section „Screwdriving".
• Select the drilling mode or torque by aligning the
symbol or number on the collar (5) with the
indicator (15) on the housing.
Forward/reverse slider (fig. E)
• To select forward or reverse rotation, use the
forward/reverse slider (2) as shown (see arrows
on tool).
Always wait until the motor has come to
a complete standstill before changing the
direction of rotation.
Two gear selector (fig. F)
Your tool is fitted with a two gear selector (6) to vary
the speed/torque ratio.
1 low speed/high torque (drilling large holes, driving
screws)
2 high speed/low torque (drilling smaller holes)
For speed rates, refer to the technical data.
• Always push the two gear selector
completely forward or backward.
• Do not change gears at full speed or
during use.
Instructions for use
Always observe the safety instructions
and applicable regulations.
Be aware of the location of pipework and
wiring.
26
Apply only a gentle pressure to the tool.
Excessive force does not speed up
drilling but decreases tool performance
and may shorten tool life.
To minimise stalling on break-through,
progressively reduce the drill point
pressure towards the end of the
operation.
Keep the motor running when pulling the
bit back out of a drilled hole. This will
help prevent jamming.
Prior to operation:
• Make sure your battery pack is (fully) charged.
• Insert the appropriate bit.
• Mark the spot where the hole is to be drilled.
• Select forward or reverse rotation.
Switching on and off (fig. A & D)
• To run the tool, press the variable speed switch
(1). The pressure exerted on the variable speed
switch determines the tool speed.
• To stop the tool, release the switch.
• To lock the tool in off position, move the forward/
reverse slider (2) to the central position.
The drill is equipped with a brake to stop
the tool as soon as the variable speed
switch is fully released.
Screwdriving (fig. A)
• Select forward or reverse rotation using the slider (2).
• Set the collar (4) to position 1 and begin
screwdriving (low torque).
• If the clutch ratchets too soon, adjust the collar
to increase the torque as required.
Drilling (fig. A)
• Select the drilling mode using the collar (4).
Drilling in metal
• Use a cutting lubricant when drilling metals. The
exceptions are cast iron and brass which should
be drilled dry.