Assembly And Adjustment - DeWalt DW912 Original Instructions Manual

(see technical data). The minimum conductor size is
1 mm ; the maximum length is 30 m.
2
When using a cable reel, always unwind the cable
completely.

Assembly and Adjustment

WARNING: Prior to assembly and
adjustment, always remove the battery
pack. Always switch off the tool before
inserting or removing the battery pack.
WARNING: Use only D
packs and chargers.
WARNING: Always switch OFF the tool
before inserting or removing the battery
pack.
Inserting and Removing the
Battery Pack from the Tool
1. Insert the battery pack (9) into the grip until it
clicks in place.
2. To remove the battery pack, press the two
release buttons (10) simultaneously and pull the
pack out of the grip.
Inserting and Removing Bits (fi g. B)
Your drill is equipped with a bit holder (7).
• Open the chuck by turning the sleeve (14)
counterclockwise and insert the bit shank.
• Place the bit in the chuck as far as it will go and
lift slightly before tightening.
• Tighten firmly by turning the sleeve clockwise
while holding the rear part of the chuck with one
hand.
• To remove the bit, proceed in reverse order.
Selecting the Operating Mode or
Adjusting the Torque (fi g. C)
The collar of this tool has 14 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.
Rotary Drilling:
for steel, wood and plastics
Collar positions:
for screwdriving
Percussion drilling:
for masonry
Forward/Reverse Slider (fi g. D)
• To select forward or reverse rotation, use the
forward/reverse slider (2) as shown (see arrows
on tool).
Two Gear Selector (fi g. E)
Your tool is fitted with a two gear selector (6) to vary
WALT battery
E
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.
Removing and Fitting the Chuck
(fi g. G, H)
• Open the chuck jaws as far as possible.
• Insert a screwdriver into the chuck and remove
the chuck retaining screw by turning clockwise
as shown in figure G.
• Tighten an Allen key into the chuck and strike
it with a hammer as shown in figure H. This will
loosen the chuck so that it can be unscrewed
by hand.
• To refit the chuck, proceed in reverse order.
Instructions for Use
WARNING: Always wait until the motor
has come to a complete stand still
before changing the direction of rotation.
WARNING: Always push the two
gear selector completely forward or
backward.
WARNING: Do not change gears at full
speed or during use.
WARNING:
• Always observe the safety instructions
and applicable regulations.
• Be aware of the location of pipe work
and wiring.
• 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.
EN GL IS H
11