Assembly And Adjustment; Operation - DeWalt DC980 User Manual

E N G L I S H
Auto-spindle Lock
The auto-spindle lock is engaged when the
transmission is stationary. The chuck sleeve can easily
be turned with one hand while the other supports the
unit.

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.
Inserting and Removing Bits (fig. A, C)
• Open the chuck by turning the sleeve (15)
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.
• To remove the bit, proceed in reverse order.
Selecting the Operating Mode or Adjusting the
Torque (fig. D)
The collar of this tool has a wide range of 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 (16) on the housing.
DC981, DC984, DC988
The percussion drills can be used in the following
operating modes:
Rotary drilling:
for steel, wood and plastics
Percussion drilling:
for masonry
Forward/reverse Slider (fig. E)
• To select forward or reverse rotation, use the
forward/reverse slider (2) as shown (see arrows on
tool).
36
Three-gear Selector (fig. F)
Your tool is fitted with a three-gear selector (6) to vary
the speed/torque ratio.
1 low speed/high torque
2 medium speed/medium torque
3 high speed/low torque
WALT battery
E
For speed rates, refer to the technical data.

OPERATION

Instructions for Use
Proper Hand Position (fi g. A, G)
DC980, DC981, DC984
Proper hand position requires one hand on the grip
(8), with the other hand on top of the body as shown.
DC987, DC988
Proper hand position requires one hand on the grip
(8), with the other hand on the side handle (9).
Switching On and Off (fig. A, E)
• 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 the off position, move the
forward/reverse slider (2) to the central position.
WARNING: Always wait until the motor
has come to a complete standstill before
changing the direction of rotation.
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 pipework and
wiring.
• Apply only a gentle pressure to the tool.
WARNING: To reduce the risk of serious
personal injury, ALWAYS use proper
hand position as shown.
WARNING: To reduce the risk of serious
personal injury, ALWAYS hold securely in
anticipation of a sudden reaction.