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ADJUSTMENTS
WARNING:
The hammer drill should never be connected to a
power supply when you are assembling parts, making
adjustments, cleaning, performing maintenance, or
when the tool is not in use. Disconnecting the tool will
prevent accidental starting that could cause serious
injury.
ADJUSTING THE AUXILIARY HANDLE
ASSEMBLY
See Figure 2.
Follow these steps to adjust the auxiliary handle assembly.
■ Loosen the auxiliary handle assembly by turning the
knob counterclockwise.
■ Rotate the auxiliary handle assembly to the desired
location.
■ Tighten the auxiliary handle assembly securely by
turning the knob clockwise.
ADJUSTING THE DEPTH GAUGE ROD
See Figure 3.
Follow these steps to adjust the depth gauge rod.
■ Lock the trigger switch by placing the rotation
selector in the center position.
■ Loosen the auxiliary handle assembly by turning the
knob counterclockwise.
■ Adjust the depth gauge rod so that the drill bit
extends beyond the end of the rod to the required
drilling depth.
■ Tighten the auxiliary handle assembly by turning the
knob clockwise.
ADJUSTING THE SPEED
See Figure 4.
The hammer drill has a two-speed gear train that provides
a high speed of approximately 1,400/min and a low speed
of approximately 400/min (stated speeds are with the
trigger switch in the “Full-on” position).
Follow these steps to adjust the speed.
■
For high speed
: Slide the two-speed gear train switch
to “2.”
■
For low speed
: Slide the two-speed gear train switch
to “1.”
Note: If you have difficulty changing from one gear
range to the other, turn the chuck by hand until the
gears engage.
CAUTION:
Never change gears while the tool is running. Failure
to obey this caution could result in serious damage to
the drill.
Fig. 2
20
5
8
Fig. 3
Fig. 4
TO
TIGHTEN
DRILLING
DEPTH
KNOB
DRILL BIT
TO DECREASE
DRILLING DEPTH
AUXILIARY
HANDLE
ASSEMBLY
TO INCREASE
DRILLING DEPTH
AUXILIARY
HANDLE
ASSEMBLY
KNOB
TO
LOOSEN
HI
SPEED
TWO-SPEED
GEAR TRAIN (HI-LO)
1
2
LO
SPEED
DEPTH GAUGE
ROD
20