754-1927
8
EN
WaRning:
The continuous operation of the
electronic control may overload or damage the regu-
lator.
OpeRating tHe tOOl
Impact operation starts automatically when the load ex-
ceeds certain level. Pushing the trigger switch at no load
will result only in change of speed.
The fastening torque depends on the duration of impact
operation. Generally, maximum torque is achieved after
6 to 10 seconds of impact operation. Further operation
will result only in slight torque increase. Prolonged im-
pact operation may cause motor damage or burning.
The torque depends on the length, grade and diameter
of the screw. It depends also on the strength of material
to be fastened (wood, metal, etc.) and the type of washer
used. Operate the tool after calculating the appropriate
impact operation time by performing a trial fastening
and measuring the actually achieved torque by a torque
wrench.
The torque depends on the length, grade and diameter
of the screw. It depends also on the rigidness of material
to be fastened (wood, metal, etc.) and the type of washer
used. Operate the tool after calculating the appropriate
impact operation time by performing a trial fastening
and measuring the actually achieved torque by a torque
wrench.
WaRning:
Power tool with a faulty switch is
dangerous and shall be repaired before use.
inseRting anD RemOving bits
(Fig. 2)
WaRning:
Remove the battery or set the
forward/reverse switch (6) in central (neutral) position.
inserting the bit:
1. Pull the locking sleeve (1) forward.
2. Insert the bit into the hexagonal socket of the bit
holder (2).
3. Release the locking sleeve. It will return in its initial
position and secure the bit.
WaRning:
If the locking sleeve does not re-
turn to its original position, then the bit has not been
installed properly.
Removing the bit:
Pull the locking sleeve forward and keep it in this position
to remove the bit
scReWing / UnscReWing
Install a bit that matches the screw, align the bit into the
grooves of the screw head, and then tighten it.
Push the impact driver just enough to keep the bit in con-
tact with the screw head.
WaRning:
Overtightening may result in
breaking the screw or damaging the bit!
Applying the impact driver for too long may tighten the
screw too much and break it.
▪
Tightening with the impact driver not aligned with the
screw may damage the screw head and the driving
force will not be transmitted properly to the screw.
▪
Before screwing large long screws into hard material,
it is advisable to pre-drill a pilot hole with the core di-
ameter of the thread to depth approx. 2/3 of the screw
length.
IX - Maintenance
WaRning:
Always set the forward/reverse
switch (4) in central position before any work on the
machine e. g. fitting and removing a battery, tool
change, transport, maintenance and storage.
Regularly check that all the fixing screws are tight. They
may vibrate loose over time.
Re-lubricate all moving parts at regular intervals.
cleaning
For safe operation always keep the machine and its ven
-
tilation slots clean.
Regularly check to see if any dust or foreign matter has
entered the grills near the motor and around the switch-
es. Use a soft brush to remove any accumulated dust.
Wear safety glasses to protect your eyes whilst cleaning.
If the body of the tool needs cleaning, wipe it with a soft
damp cloth. A mild detergent can be used.
WaRning:
Never use alcohol, petrol or other
cleaning agent. Never use caustic agents to clean
plastic parts.
WaRning:
Water must never come into con-
tact with the tool.
charger cleaning instructions
WaRning:
Disconnect the charger from the
AC outlet before cleaning.
▪
Dirt and grease may be removed from the exterior of
the charger using a cloth or soft non-metallic brush.
Do not use water or any cleaning solutions.
impORtant!
To assure product safety and reliability,
repairs, maintenance and adjustment (including brush
inspection and replacement) should be performed by
RS-754-1927-pages-GUR 10.8Li.indd 8
8.6.2012 г. 15:14:58 ч.
