GMC GM18RS Manual Del Usuario página 10

• Ensure that the charger is disconnected from the mains supply after use, and is stored correctly
• DO NOT leave batteries on charge for extended periods and NEVER store batteries on charge
• The Battery Charger (15) monitors battery temperature and voltage while charging. Remove
the Battery once charging has been completed to maximise charge cycles of the battery and
not waste power
• Batteries can become faulty over time, individual cells in the battery can fail and the battery
could short. The charger will not charge faulty batteries. Use another battery, if possible, to
check correct functionality of the charger and purchase a replacement battery if a faulty battery
is indicated
• DO NOT store Lithium-Ion battery packs in a discharged state long term. This can damage the
Lithium-Ion cells. For long-term storage, store batteries in a high charge state disconnected
from the power tool
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• The capacity of batteries will reduce over time. After 100 charge cycles, the battery's operation
time and the maximum torque performance of the drill will slightly reduce. This decline will
continue until the battery has minimal capacity after 500 charge cycles. This is normal and not
a fault with the battery pack
Note: It is recommended to only use a minimum of 3Ah capacity batteries with this tool due to
the high current motor and safety issues with the battery fully discharging in use stopping the tool
operating. The 3Ah or 4Ah capacity batteries are recommended for additional safety and runtime.
Fitting a saw blade
WARNING: ALWAYS remove the battery before fitting or removing saw blades.
WARNING: ALWAYS wear suitable cut-proof gloves when handling saw blades.
WARNING: DO NOT continue to use blunt, warped or otherwise damaged saw blades. Note:
ALWAYS fit a saw blade specific to the material you are cutting.
1. Rotate the Blade Slot Assembly (3) fully anti-clockwise (Fig. II), and insert the blade shank as far
as it will go into the slot in the required orientation. For most uses the teeth will be facing down.
2. Release the Blade Slot Assembly
3. Pull the blade to ensure that it is secure. If it is not locked firmly in place repeat the above
procedure
• To remove a blade from the Blade Slot Assembly rotate fully anti-clockwise and remove
Notes
• This reciprocating saw uses standard ½" universal shank saw blades
• Use a blade length that extends beyond the Shoe (2) at all stages of the reciprocating action
stroke and is long enough for the workpiece. The blade end should not be within the body of the
workpiece at any stage of the reciprocating action (see Fig. IV)
• When removing broken blades be very careful of sharp metal where the blade has broken. If
necessary use pliers to remove the blade
• Dust, wood chippings and swarf can cause the blade locking mechanism to malfunction. If this
occurs, remove the blade and hold the Blade Slot Assembly (3) in open mode. Remove particles
from the mechanism by vacuuming or blowing dry compressed air through the blade Slot
• It may be necessary to twist the Blade Clamp Assembly wheel back and forth to loosen the dust
- do this with the slot facing downwards. After cleaning, use a dry graphite based lubricant on
the Blade Clamp mechanism
Types of blade
Different teeth configurations are shown in Fig III.
(A) General purpose bi-directional saw blade suitable for cutting branches on bushes or trees.
It cuts fast but will push the branch away from the Shoe (2) as it cuts on one part of its
reciprocating action
(B) Teeth configuration suitable for metal with a very fine tooth pitch. This takes a very small
amount of material with each cut and is normally uni-directional. For example, if cutting a pipe,
the reciprocating saw would not push the pipe away from the Shoe as its major cut is only
when cutting towards the Shoe
(C) Typical uni-directional wood saw blade. It cuts as it returns to the saw, not when it travels away
from the saw
Understanding the difference between uni-directional and bi-directional saw blades and when
to use each type will make safer and more effective use of the reciprocating saw. Only use bi-
directional saw blades when it is safe to do so. Some high-performance blades with a fast cutting
action may be based on a bi-directional cut as are some blades designed for materials such as
plaster board.
• Always use a uni-directional blade when the workpiece isn't securely clamped
Operation
WARNING: Always use adequate protective equipment, including eye protection, respiratory and
hearing protection, as well as suitable gloves, when working with this tool.
WARNING: When cutting wood, ensure foreign objects, such as nails and screws, are removed
from the workpiece before starting to cut.
WARNING: NEVER attempt to cut with a saw blade fitted that is not suitable for the material.
NEVER use blunt or otherwise damaged saw blades.
Note: ALWAYS use clamps to secure your workpiece to the workbench wherever possible.
Switching on and off
1. Hold the tool securely with both hands by the Main Handle (7) and Barrel Grip (4) ensuring your
hands are always behind the Hand Guard (13) at all times
2. Ensure the tool is not in contact with the workpiece with no gap between the Shoe (2) and
workpiece (Fig. V) before commencing with switching on
3. Press in the Safety Lock-Off (5) and hold in.
Note: A Safety Lock-Off is on both sides of the tool for both left and right handed operation.
4. Press the Variable Speed Trigger (6) to start the saw
Note: The speed of the blade is controlled by increasing/decreasing pressure on the Variable Speed
Trigger.
5. Release the Variable Speed Trigger Switch to stop the saw
WARNING: ALWAYS remove the saw blade from the cut before switching off.
WARNING: Always wait until the saw blade has stopped moving completely, before putting the
machine down. It is recommended to remove the battery after use for safety.
Adjusting tool speed
Note: This GMC reciprocating saw features variable speed control, adjusted by the Variable Speed
Trigger (6), which enables it to be used with a variety of different materials, workpieces and objects.
WARNING: ALWAYS adjust the speed according to material requirements. Use appropriate
cutting fluid or cooling agent when cutting metals.
Note: If in doubt about the correct cutting speed, refer to the blade manufacturer's instructions, and
follow recommendations specific to the material being cut.
Making general cuts
1. Mark out the cutting line
2. Ensure that the material to be cut is secure. Small workpieces should be held in a vice or
clamped to the workbench
3. Hold the saw firmly using both hands, one on the Main Handle (7), one on the Barrel Grip (4)
4. Make sure that the blade is clear of any obstruction, or foreign objects
5. Squeeze the trigger and allow the blade to reach full speed
6. Place the shoe on the workpiece and begin sawing
WARNING: Use ONLY enough pressure to keep the saw cutting. NEVER force the saw blade;
allow the blade and the saw to do the work. Use of excessive pressure that causes bending or
twisting of the blade may cause the blade to break.
Making plunge cuts
WARNING: Plunge cutting is an advanced technique with higher risk. Only attempt plunge cuts
when you are competent and experienced with this technique.
WARNING: ONLY attempt the plunge cutting procedure in soft materials such as wood,
plasterboard and similar materials. DO NOT attempt plunge cuts in metal or hard materials. ONLY
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