Maintenance - DeWalt DCH133H2-AR Instruction Manual

ENglIsh
symbol Mode
Rotary Drilling
Rotary
hammering
hammering
only
To select an operating Mode:
1. Depress the mode selector release button
2. Rotate the mode selector dial so that the arrow points to
the symbol corresponding for the desired mode.
Fig. I
6
NoTE: The arrow on the mode selector dial
pointing 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.
Performing an Application (Fig. A, J)

WARNING: TO REDUCE THE RISK OF PERSONAL
INJURY, ALWAYS ensure workpiece is anchored or
clamped firmly. If drilling thin material, use a wood
"back-up" block to prevent damage to the material.

WARNING: Always wait until the motor has come to
a complete standstill before changing the direction
of rotation.
1. Choose and install the appropriate chuck, adapter, and/
or bit onto to the tool. Refer to Bit and Bit Holder.
2. Using the mode selector dial
appropriate to desired application. Refer to
Operation Modes.
3. Adjust the side handle
4. Select the direction of rotation using the forward/
reverse button 4 . When changing the position of the
control button, be sure the trigger is released.
- To select forward rotation, press the for ward/re verse
control button on the right side of the tool.
- To select reverse, press the forward/reverse control
button on the left side of the tool.
NoTE: The center position of the control button
locks the tool in the off position.
34
application
Screwdriving
Drilling into steel, wood
and plastics
Drilling into concrete
and masonry
Light chipping
.
7
6 must be
6 , select the mode
as necessary.
3
Fig. J
3
5. Place the bit/chisel on the desired location.
6. Depress the trigger switch
the trigger switch, the faster the tool will operate. For
maximum tool life, use variable speed only for starting
holes or fasteners.
7. To stop the hammer, release the switch.
Recommendations for Tool Operation
• Large (5/16" to 1/2" [7.9 mm to 12.7 mm]) holes in steel
can be made easier if a pilot hole (5/32" to 3/16" [4 mm
to 4.8 mm]) is drilled first.
• When drilling, always apply pressure in a straight line
with the bit, but do not push hard enough to stall the
motor or deflect the bit. A smooth even flow of material
indicates the proper drilling rate.
• If drilling thin material or material that is prone to
7
splinter, use a wood "back-up" block to prevent damage
to the work piece.

WARNING:
• Do not use this tool to mix or pump easily
combustible or explosive fluids (benzine,
alcohol, etc.).
• Do not mix or stir inflammable liquids
labelled accordingly.

MAINTENANCE


WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/
installing attachments or accessories. An
accidental start-up can cause injury.
Your D WALT power tool has been designed to operate
e
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper
tool care and regular cleaning.
Cleaning

WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the
risk of eye injury, always wear approved eye protection
when performing this.

WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid
get inside the tool; never immerse any part of the tool
into a liquid.
5
6
5 . The farther you depress
4