Operation - DeWalt XR DCH733 Original Instructions Manual

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OPERATION

Instructions for Use

WARNING: Always observe the safety instructions and
applicable regulations.

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can cause injury.
Proper Hand Position (Fig. A, E)

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.
Proper hand position requires one hand on the mounted side
handle 
, with the other hand on the main handle 
 2 
Operation Modes (Fig. A)

WARNING: Do not select the operating mode when the
tool is running.

CAUTION: Never use in Rotary Drilling or Rotary
Hammering mode with a chisel bit in the bit holder.
Personal injury and damage to the the tool may result.
Your tool is equipped with a mode selector dial  
mode appropriate to desired operation.
symbol
Mode
Rotary
hammering
hammering only Light chipping
Bit Adjustment Chisel bit position adjustment
To Select an Operating Mode
Rotate the mode selector dial so that the arrow points to the
symbol corresponding for the desired mode.
nOTE: The arrow on the mode selector dial 
at a mode symbol at all times. There are no operable positions
in between. It may be necessary to briefly run the motor after
having changed from 'hammering only' to 'rotary' modes in
order to align the gears.
Indexing the Chisel Position (Fig. A)
The chisel can be indexed and locked into 24 different positions.
1. Rotate the mode selector switch 
the
 position.
2. Rotate the chisel to the desired position.
3. Set the mode selector switch 
Only" position.
4. Twist the chisel until it locks in position.
12
.
 5 
to select the
 4 
Application
Drilling into concrete
and masonry
must be pointing
 4 
 4 
until it points towards
 4 
to the "hammering
Performing an Application (Fig. A)

WARNING: TO REDUCE THE RISK OF PERSONAL
INJURY, ALWAYS ensure workpiece is anchored or
clamped firmly. If drilling thin material, use a wood
"backup" block to prevent damage to the material.
Switching On and Off (Fig. A)
To turn the tool on, depress the trigger switch 
To stop the tool, release the trigger switch.
Drilling with a Solid Bit (Fig. A)
1. Insert the appropriate drill bit.
2. Set the mode selector switch 
hammerdrilling position.
3. Set the electronic speed and impact control dial 
4. Fit and adjust the side handle 
5. Mark the spot where the hole is to be drilled.
6. Place the drill bit on the spot and switch on the tool.
7. Always switch off the tool when work is finished and
before unplugging.
Drilling with a Core Bit (Fig. A)
1. Insert the appropriate core bit.
2. Assemble the centerdrill into the core bit.
3. Set the mode selector switch 
hammerdrilling position.
4. Turn the electronic speed and impact control dial 
medium or high speed setting.
5. Fit and adjust the side handle 
6. Place the centerdrill on the spot and switch on the tool. Drill
until the core penetrates into the concrete approximately
1 cm.
7. Stop the tool and remove the centerdrill. Place the core bit
back into the hole and continue drilling.
8. When drilling through a structure thicker than the depth of
the core bit, break away the round cylinder of concrete or
core inside the bit at regular intervals.
To avoid unwanted breaking away of concrete around
the hole, first drill a hole the diameter of the centerdrill
completely through the structure. Then drill the cored hole
halfway from each side.
9. Always turn the tool off when work is finished and
before unplugging.
Chipping and Chiselling (Fig. A)
1. Insert the appropriate chisel and rotate it by hand to
lock it into one of 24 positions. Refer to Indexing the
Chisel Position.
2. Set the mode selector switch 
only' position.
3. Set the electronic speed and impact control dial 
4. Fit and adjust the side handle 
5. Turn the tool on and start working.
6. Always turn the tool off when work is finished and
before unplugging.
 1 
.
 4 
to the
 10 
.
 2 
.
to the
 4 
 10 
to a
 2 
.
to the 'hammering
 4 
 10 
.
 2 
.

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