Makita GA4030 Instruction Manual page 8

FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Shaft lock
► Fig.1: 1. Shaft lock
CAUTION:
• Never actuate the shaft lock when the spindle is
moving. The tool may be damaged.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
Switch action
► Fig.2: 1. Switch lever
CAUTION:
• Before plugging in the tool, always check to
see that the slide switch actuates properly and
returns to the "OFF" position when the rear of
the slide switch is depressed.
To start the tool, slide the switch lever toward the
"I (ON)" position. For continuous operation, press the
front of the switch lever to lock it.
To stop the tool, press the rear of the switch lever, then
slide it toward the "O (OFF)" position.
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)
► Fig.3
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.
Installing or removing wheel guard
(For depressed center wheel,
multi disc / abrasive cut-off wheel,
diamond wheel)
For tool with locking screw type
wheel guard
► Fig.4: 1. Wheel guard 2. Screw 3. Bearing box
WARNING:
• When using a depressed center grinding wheel/
Multi-disc, flex wheel, wire wheel brush, cut-off
wheel or diamond wheel, the wheel guard must
be fitted on the tool so that the closed side of the
guard always points toward the operator.
• When using an abrasive cut-off / diamond
wheel, be sure to use only the special wheel
guard designed for use with cut-off wheels. (In
European countries, when using a diamond
wheel, the ordinary guard can be used.)
Mount the wheel guard with the protrusion on the wheel
guard band aligned with the notch on the bearing box.
Then rotate the wheel guard to such an angle that it
can protect the operator according to work. Be sure to
tighten the screw securely.
To remove wheel guard, follow the installation proce-
dure in reverse.
For tool with clamp lever type wheel
guard
► Fig.5: 1. Wheel guard 2. Bearing box 3. Screw
4. Lever
► Fig.6: 1. Screw 2. Lever
Loosen the lever on the wheel guard after loosening
the screw. Mount the wheel guard with the protrusion
on the wheel guard band aligned with the notch on the
bearing box. Then rotate the wheel guard around to the
position shown in the figure. Tighten the lever to fasten
the wheel guard. If the lever is too tight or too loose to
fasten the wheel guard, loosen or tighten the screw to
adjust the tightening of the wheel guard band.
To remove wheel guard, follow the installation proce-
dure in reverse.
Installing or removing depressed
center grinding wheel/Multi-disc
► Fig.7: 1. Lock nut 2. Depressed center grinding
wheel/Multi-disc 3. Inner flange
WARNING:
• Always use supplied guard when depressed
center grinding wheel/Multi-disc is on tool.
Wheel can shatter during use and guard helps
to reduce chances of personal injury.
Mount the inner flange onto the spindle. Fit the wheel/
disc on the inner flange and screw the lock nut onto the
spindle.
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.8: 1. Lock nut wrench 2. Shaft lock
8 ENGLISH