Maktec MT871, Инструкция по эксплуатации

Страница: 7 / 28

7 ENGLISH
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and unplugged before carrying out
any work on the tool.
Side grip (auxiliary handle)
CAUTION:
Always use the side grip to ensure
safe operation.
CAUTION:
After installing or adjusting the
side grip, make sure that the side grip is firmly
secured.
Install the side grip so that the protrusions on the grip fit
in between the grooves on the tool barrel. Then tighten
the thumb screw clockwise to fix the grip at the desired
position.
The side grip can be swung 360° so as to be secured at
any position.
► Fig.6: 1. Side grip 2. Thumb screw 3. Tighten
4. Loosen
Grease
Coat the shank end of the drill bit/chisel beforehand with
a small amount of grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon-
ger service life.
Installing or removing drill bit/chisel
Clean the shank end of the drill bit/chisel and apply
grease before installing the drill bit/chisel.
► Fig.7: 1. Shank end of the drill bit/chisel 2. Grease
Insert the drill bit/chisel into the tool. Turn the drill bit/
chisel and push it in until it engages.
After installing the drill bit/chisel, always make sure that
the drill bit/chisel is securely held in place by trying to
pull it out.
► Fig.8: 1. Drill bit/chisel
To remove the drill bit/chisel, pull the chuck cover down
all the way and pull the drill bit/chisel out.
► Fig.9: 1. Drill bit/chisel 2. Chuck cover
Chisel angle (when chipping,
scaling or demolishing)
The chisel can be secured at the desired angle. To
change the chisel angle, rotate the action mode chang-
ing knob to the O symbol. Turn the chisel to the desired
angle.
► Fig.10: 1. Action mode changing knob
Rotate the action mode changing knob to the sym-
bol. Then make sure that the chisel is securely held in
place by turning it slightly.
Depth gauge
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the thumb screw and adjust
the depth gauge to the desired depth. After adjusting,
tighten the thumb screw firmly.
► Fig.11: 1. Thumb screw 2. Depth gauge
NOTE: The depth gauge cannot be used at the posi-
tion where the depth gauge touches against the gear
housing/motor housing.
OPERATION
CAUTION:
Always use the side grip (auxiliary
handle) and firmly hold the tool by both side grip
and switch handle during operations.
CAUTION:
Always make sure that the work -
piece is secured before operation.
► Fig.12
Hammer drilling operation
CAUTION:
There is tremendous and sudden
twisting force exerted on the tool/drill bit at the time of
hole break-through, when the hole becomes clogged
with chips and particles, or when striking reinforcing
rods embedded in the concrete. Always use the side
grip (auxiliary handle) and firmly hold the tool by
both side grip and switch handle during opera -
tions. Failure to do so may result in the loss of control
of the tool and potentially severe injury.
Set the action mode changing knob to the symbol.
Position the drill bit at the desired location for the hole,
then pull the switch trigger. Do not force the tool. Light
pressure gives best results. Keep the tool in position
and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the drill bit partially from the hole.
By repeating this several times, the hole will be cleaned
out and normal drilling may be resumed.
NOTE: Eccentricity in the drill bit rotation may occur
while operating the tool with no load. The tool auto-
matically centers itself during operation. This does not
affect the drilling precision.
Chipping/Scaling/Demolition
Set the action mode changing knob to the symbol.
Hold the tool firmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled.
Pressing very hard on the tool will not increase the
efficiency.
► Fig.13