Functional Description - Makita GA4051R Betriebsanleitung

Safety Warnings Specific for Wire Brushing Operations:
1. 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.
2. If the use of a guard is recommended for wire brush-
ing, do not allow any 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:
1. When using depressed centre grinding wheels,
be sure to use only fiberglass-reinforced wheels.
2. 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.
3. Be careful not to damage the spindle, the flange (espe-
cially the installing surface) or the lock nut. Damage to
these parts could result in wheel breakage.
4. Make sure the wheel is not contacting the
workpiece before the switch is turned on.
5. Before using the tool on an actual workpiece,
let it run for a while. Watch for vibration or
wobbling that could indicate poor installation
or a poorly balanced wheel.
6. Use the specified surface of the wheel to per-
form the grinding.
7. Do not leave the tool running. Operate the tool
only when hand-held.
8. Do not touch the workpiece immediately after opera-
tion; it may be extremely hot and could burn your skin.
Do not touch accessories immediately after operation;
9.
it may be extremely hot and could burn your skin.
10. Observe the instructions of the manufacturer
for correct mounting and use of wheels.
Handle and store wheels with care.
11. Do not use separate reducing bushings or
adaptors to adapt large hole abrasive wheels.
12. Use only flanges specified for this tool.
13. For tools intended to be fitted with threaded
hole wheel, ensure that the thread in the wheel
is long enough to accept the spindle length.
14. Check that the workpiece is properly supported.
15. Pay attention that the wheel continues to
rotate after the tool is switched off.
16. If working place is extremely hot and humid, or
badly polluted by conductive dust, use a short-cir-
cuit breaker (30 mA) to assure operator safety.
17. Do not use the tool on any materials contain-
ing asbestos.
18. Do not use cloth work gloves during operation.
Fibers from cloth gloves may enter the tool, which
causes tool breakage.
SAVE THESE INSTRUCTIONS.
WARNING:
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
CAUTION:
Always be sure that the tool is
switched off and unplugged before adjusting or
checking function on the tool.
Shaft lock
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
► Fig.1: 1. Shaft lock
NOTICE:
Never actuate the shaft lock when the
spindle is moving. The tool may be damaged.
Switch action
CAUTION:
Before plugging in the tool, always
check to see that the switch trigger actuates
properly and returns to the "OFF" position when
released.
CAUTION:
Do not pull the switch lever forc-
ibly without pressing the lock-off button. The
switch may break.
To prevent the switch lever from accidentally pulled, a
lock-off lever is provided. To start the tool, pull the lock-
off lever toward the operator, and then pull the switch
lever. Release the switch lever to stop.
► Fig.2: 1. Lock-off lever 2. Switch lever
Unintentional restart proof
The tool does not start while pulling the switch lever
even when the tool is plugged. To start the tool, first
release the switch lever. Then pull the lock-off lever, and
pull the switch lever.
NOTE: Wait more than one second before restarting
the tool when unintentional restart proof functions.
Soft start feature
Soft start feature reduces starting reaction.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and unplugged before carrying out
any work on the tool.
Installing side grip (handle)
CAUTION:
Always be sure that the side grip is
installed securely before operation.
Screw the side grip securely on the position of the tool
as shown in the figure.
► Fig.3
8 ENGLISH