Makita DGA900 Betriebsanleitung Seite 12

For tool with clamp lever type wheel
guard
Loosen the nut, and then pull the lever in the direction
of the arrow.
► Fig.9: 1. Nut 2. Lever
Mount the wheel guard with the protrusions on the
wheel guard band aligned with the notches on the bear-
ing box. Then rotate the wheel guard to such an angle
that it can protect the operator according to work.
► Fig.10: 1. Wheel guard 2. Bearing box
► Fig.11: 1. Wheel guard
Close the lever in direction of the arrow. Then tighten
the wheel guard with fastening the nut. Be sure to
tighten the nut securely. The setting angle of the wheel
guard can be adjusted by opening the lever.
► Fig.12: 1. Lever 2. Nut
To remove wheel guard, follow the installation proce-
dure in reverse.
Installing or removing depressed
center wheel or flap disc
Optional accessory
WARNING:
When using a depressed center
wheel or flap disc, the wheel guard must be fitted
on the tool so that the closed side of the guard
always points toward the operator.
CAUTION:
Make sure that the mounting part
of the inner flange fits into the inner diameter of
the depressed center wheel / flap disc perfectly.
Mounting the inner flange on the wrong side may
result in the dangerous vibration.
Mount the inner flange onto the spindle.
Make sure to fit the dented part of the inner flange onto
the straight part at the bottom of the spindle.
Fit the wheel/ disc on the inner flange and screw the
lock nut with its protrusion facing downward (facing
towards the wheel).
► Fig.13: 1. Lock nut 2. Depressed center wheel
3. Inner flange 4. Mounting part
To tighten the lock nut, press the shaft lock firmly so
that the spindle cannot revolve, then use the lock nut
wrench and securely tighten clockwise.
► Fig.14: 1. Lock nut wrench 2. Shaft lock
To remove the wheel, follow the installation procedure
in reverse.
Installing or removing flex wheel
Optional accessory
WARNING:
Always use supplied guard when
flex wheel is on tool. Wheel can shatter during use
and guard helps to reduce chances of personal injury.
► Fig.15: 1. Lock nut 2. Flex wheel 3. Back up pad
4. Inner flange
Follow instructions for depressed center wheel but also
use back up pad over wheel. See order of assembly on
accessories page in this manual.
Installing or removing abrasive disc
Optional accessory
► Fig.16: 1. Sanding lock nut 2. Abrasive disc
3. Rubber pad
1. Mount the rubber pad onto the spindle.
2. Fit the disc on the rubber pad and screw the sand-
ing lock nut onto the spindle.
3.
Hold the spindle with the shaft lock, and securely tighten
the sanding lock nut clockwise with the lock nut wrench.
To remove the disc, follow the installation procedure in
reverse.
NOTE: Use sander accessories specified in this man-
ual. These must be purchased separately.
OPERATION
WARNING:
force the tool. The weight of the tool applies ade-
quate pressure. Forcing and excessive pressure
could cause dangerous wheel breakage.
WARNING:
dropped while grinding.
WARNING:
or wheel onto work.
WARNING:
wheel, especially when working corners, sharp
edges etc. This can cause loss of control and kickback.
WARNING:
blades and other saw blades. Such blades when
used on a grinder frequently kick and cause loss of
control leading to personal injury.
CAUTION:
Never switch on the tool when it
is in contact with the workpiece, it may cause an
injury to operator.
CAUTION:
Always wear safety goggles or a
face shield during operation.
CAUTION:
After operation, always switch off
the tool and wait until the wheel has come to a
complete stop before putting the tool down.
CAUTION:
ALWAYS hold the tool firmly with
one hand on housing and the other on the side
grip (handle).
Grinding and sanding operation
► Fig.17
Turn the tool on and then apply the wheel or disc to the
workpiece.
In general, keep the edge of the wheel or disc at an
angle of about 15° to the workpiece surface.
During the break-in period with a new wheel, do not
work the grinder in forward direction or it may cut into
the workpiece. Once the edge of the wheel has been
rounded off by use, the wheel may be worked in both
forward and backward direction.
12 ENGLISH
It should never be necessary to
ALWAYS replace wheel if tool is
NEVER bang or hit grinding disc
Avoid bouncing and snagging the
NEVER use tool with wood cutting