Functional Description - Makita GA4540R Manuel D'instructions

suitable for the higher speed of a smaller tool and may
burst.
Additional Safety Warnings Specific for Abrasive
Cutting-Off Operations:
a) Do not "jam" the cut-off wheel or apply
excessive pressure. Do not attempt to make an
excessive depth of cut. Overstressing the wheel
increases the loading and susceptibility to twisting or
binding of the wheel in the cut and the possibility of
kickback or wheel breakage.
b) Do not position your body in line with and
behind the rotating wheel. When the wheel, at the
point of operation, is moving away from your body, the
possible kickback may propel the spinning wheel and
the power tool directly at you.
c) When wheel is binding or when interrupting a
cut for any reason, switch off the power tool and
hold the power tool motionless until the wheel
comes to a complete stop. Never attempt to
remove the cut-off wheel from the cut while the
wheel is in motion otherwise kickback may occur.
Investigate and take corrective action to eliminate the
cause of wheel binding.
d) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully re-enter the cut. The wheel may bind, walk
up or kickback if the power tool is restarted in the
workpiece.
e) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near
the line of cut and near the edge of the workpiece on
both sides of the wheel.
f) Use extra caution when making a "pocket cut"
into existing walls or other blind areas. The
protruding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
Safety Warnings Specific for Sanding Operations:
a) Do not use excessively oversized sanding disc
paper. Follow manufacturers recommendations,
when selecting sanding paper. Larger sanding
paper extending beyond the sanding pad presents a
laceration hazard and may cause snagging, tearing of
the disc or kickback.
Safety Warnings Specific for Wire Brushing
Operations:
a) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load to
the brush. The wire bristles can easily penetrate light
clothing and/or skin.
b) If the use of a guard is recommended for wire
brushing, do not allow interference of the wire
wheel or brush with the guard. Wire wheel or brush
may expand in diameter due to work load and
centrifugal forces.
Additional Safety Warnings:
17. When using depressed centre grinding wheels, be
sure to use only fiberglass-reinforced wheels.
18. NEVER USE Stone Cup type wheels with this
grinder. This grinder is not designed for these types of
wheels and the use of such a product may result in
serious personal injury.
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19. Be careful not to damage the spindle, the flange
20. Make sure the wheel is not contacting the
21. Before using the tool on an actual workpiece, let it
22. Use the specified surface of the wheel to perform
23. Do not leave the tool running. Operate the tool
24. Do not touch the workpiece immediately after
25. Observe the instructions of the manufacturer for
26. Do not use separate reducing bushings or
27. Use only flanges specified for this tool.
28. For tools intended to be fitted with threaded hole
29. Check that the workpiece is properly supported.
30. Pay attention that the wheel continues to rotate
31. If working place is extremely hot and humid, or
32. Do not use the tool on any materials containing
33. When use cut-off wheel, always work with the dust
34. Cutting discs must not be subjected to any lateral
SAVE THESE INSTRUCTIONS.
DO NOT let comfort or familiarity with product (gained
from repeated use) replace strict adherence to safety
rules for the subject product. MISUSE or failure to
follow the safety rules stated in this instruction
manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

• Always be sure that the tool is switched off and
Shaft lock
• Never actuate the shaft lock when the spindle is
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
(especially the installing surface) or the lock nut.
Damage to these parts could result in wheel
breakage.
workpiece before the switch is turned on.
run for a while. Watch for vibration or wobbling
that could indicate poor installation or a poorly
balanced wheel.
the grinding.
only when hand-held.
operation; it may be extremely hot and could burn
your skin.
correct mounting and use of wheels. Handle and
store wheels with care.
adaptors to adapt large hole abrasive wheels.
wheel, ensure that the thread in the wheel is long
enough to accept the spindle length.
after the tool is switched off.
badly polluted by conductive dust, use a short-
circuit breaker (30 mA) to assure operator safety.
asbestos.
collecting wheel guard required by domestic
regulation.
pressure.
WARNING:
CAUTION:
unplugged before adjusting or checking function on the
tool.
CAUTION:
moving. The tool may be damaged. (Fig. 1)
7