Before Use - GMC LJS750CF Manual Del Usuario

Before Use

WARNING: Ensure the tool is disconnected from the power supply before attaching or changing
any accessories, or making any adjustments.
Blade guide
• The Blade Guide (14) is spring loaded. Depending on the position of the Pendulum Lever (7),
the guide remains stationary (non-pendulum) or oscillates backwards and forwards, causing the
blade to cut with a pendulum action
Pendulum adjustment
The Pendulum Lever (7) has 4 positions, (Image A):
• Position '0' selects normal cutting without pendulum action
• Positions 1, 2 and 3 engage pendulum action. This causes the blade to swing slightly backwards
GB
and forwards as it cuts, increasing cutting efficiency
• Position 1 provides minimum pendulum action ; position 3 provides maximum pendulum action
• Experiment on a piece of scrap material to determine the optimum pendulum action setting for
the workpiece
Adjusting the shoe for bevel cutting
The Shoe Plate (13) can be set at any angle up to 45° left or right to perform a bevel cut:
1. Turn the jigsaw upside down and lift the Shoe Lock (8) to the vertical position (Image B)
2. If you are adjusting the shoe for the first time, turn the Shoe Lock anticlockwise until it is loose
enough to allow the shoe to be moved forward and be tilted
3. There are set positions at 0° and 45° for easy setting. For other angles, use the scale located on
the base - adjacent to the Pendulum Lever (7) - as a guide
4. Retighten the Shoe Lock clockwise and press the lever flat against the jigsaw base (Image C)
Note: For accurate work, make a trial cut in scrap material; check the cut and adjust as necessary
until the correct setting is achieved.
Dust extraction adaptor
• The Dust Extraction Adaptor (16) allows a dust extraction system or a household vacuum cleaner
to be connected to the tool in order to remove dust whilst the tool is in use
WARNING: Use a suitable workshop dust extraction system when cutting metal. Sparks may ignite
residual wood dust.
Blade storage
Both sides of the Shoe Plate (13) have a Blade Storage (10) area for one blade each:
1. Slide the Blade Storage Release Tab (9) to the left for the left side, or to the right for the right side
2. Insert or remove a blade from the Shoe Plate
Changing a blade
Removing a blade
1. Turn the unit upside down so you can access the jigsaw blade (Image D)
2. Using a thumb and forefinger, push down the Tool-Free Blade Change Control (17) on both sides
of the jigsaw blade. Take care that fingers do not come into contact with the teeth of the jigsaw
blade
3. Whilst the Tool-Free Blade Change Control is pressed down, the old blade can be easily removed
using the other hand
Note: If the blade is difficult to release using the Tool-Free Blade Change Control, lightly tap the end
of the blade with a wooden mallet or similar. This will free the blade which can then be released.
Fitting a new blade
1. With the Tool-Free Blade Change Control (17) pressed down, slide the new blade into the locating
groove in the blade clamp with the teeth pointing forward (Image E). Ensure that the blade rear
edge is located and supported by the Blade Guide (14)
2. Release the Tool-Free Blade Change Control to secure the blade in position
3. Replace the plug and run the jigsaw under no load to check that it runs smoothly and the blade is
secure before using it to cut any materials
Operation
WARNING: ALWAYS wear eye protection, adequate respiratory and hearing protection, as well
as suitable gloves, when working with this tool.
Switching on and off
1. Connect the tool to mains power
2. Switch on the tool by squeezing the On/Off Trigger Switch (3)
3. Release the trigger to stop the tool
• If the Lock-On Button (4) is pressed while the trigger switch is depressed, the switch will remain in
the operating position (Image F)
• Press the trigger switch again to disengage the Lock-On Button
Adjusting the cutting speed
Blade speed may be adjusted to suit the material being cut. This enhances cutting performance and
saves the blade from undue wear:
1. Use the Variable Speed Dial (2) to set the speed of the blade (Image G)
Using the laser guide system
The laser line generator emits an intense narrow beam of pure red light to guide as you cut. It
improves operator cutting vision, enables faster set-up, increases accuracy and improves safety.
• Use the Laser Light On/Off Switch (1) to switch the laser beam on or off
Making a cut
WARNING: Ensure the Blade Guard (18) is in place whenever the jigsaw is in use.
1. Position the front of the Shoe Plate (13) on the edge of the workpiece (Image H) and start the saw
2. Allow the blade to reach full speed before engaging the workpiece
3. Slowly guide the jigsaw forward using both hands, keeping the Shoe Plate flat against the
workpiece
4. Do not force the saw: allow the blade and the saw to do the work. Use only enough pressure to
keep the blade cutting
Pocket and circular cutting
• When starting a cut within a workpiece, drill a 12mm diameter hole to ensure there is clearance
for the blade (Image I)
• When cutting tight curves, reduce the speed of the saw
WARNING: Do not move the saw forward along its cut until the blade has completely entered the
material and the shoe comes to rest on its surface.
Using the parallel fence
• Use the Parallel Fence (12) to guide the jigsaw along a straight line, which can be an edge of the
workpiece or a piece of straight timber clamped to the workpiece
• The fence is particularly useful for ensuring consistency when cutting multiple strips from a single
piece of material
1. To fit the Parallel Fence, slide it into the guides at the front of the Shoe Plate (13)
2. Use the Parallel Guide Fixing Screws (15) to secure in position (Image J)
Cutting metal
• When cutting metals, a suitable cooling/cutting oil must be used
• Apply the lubricant to the blade or workpiece at regular intervals during cutting in order to reduce
wear on the blade
Accessories
• Accessories for your jigsaw, including blades for different kinds of materials and cuts, are
available from your GMC stockist. Spare parts can be obtained at www.toolsparesonline.com
9