Makita SA5040C Manuel D'instructions page 9

Shaft lock (Fig. 1)
CAUTION:
• Never actuate the shaft lock when the spindle is mov-
ing. The tool may be damaged.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
Switch action (Fig. 2)
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.
• Switch can be locked in "ON" position for ease of oper-
ator comfort during extended use. Apply caution when
locking tool in "ON" position and maintain firm grasp on
tool.
To start the tool, slide the slide switch toward the "I (ON)"
position by pushing the rear of the slide switch. For con-
tinuous operation, press the front of the slide switch to
lock it.
To stop the tool, press the rear of the slide switch, then
slide it toward the "O (OFF)" position.
Indication lamp (Fig. 3)
The indication lamp lights up green when the tool is
plugged. If the indication lamp does not light up, the
mains cord or the controller may be defective. The indi-
cation lamp is lit but the tool does not start even if the tool
is switched on, the carbon brushes may be worn out, or
the controller, the motor or the ON/OFF switch may be
defective.
Unintentional restart proof
The tool does not start with the switch being lock-on even
when the tool is plugged.
At this time, the indication lamp flickers red and shows
the unintentional restart proof device is on function.
To cancel the unintentional restart proof, return the slide
switch to "O (OFF)" position.
Speed adjusting dial (Fig. 4)
The rotating speed can be changed by turning the speed
adjusting dial to a given number setting from 1 to 5.
Higher speed is obtained when the dial is turned in the
direction of number 5. And lower speed is obtained when
it is turned in the direction of number 1.
Refer to the below table for the relationship between the
number settings on the dial and the approximate rotating
speed.
Number
1
2
3
4
5
012757
CAUTION:
• If the tool is operated continuously at low speeds for a
long time, the motor will get overloaded and heated up.
• The speed adjusting dial can be turned only as far as 5
and back to 1. Do not force it past 5 or 1, or the speed
adjusting function may no longer work.
–1
min (R.P.M.)
2,000
3,000
4,000
5,500
7,800
Electronic function
The tools equipped with electronic function are easy to
operate because of the following features.
Constant speed control
Constant speed control provides fine finish by keeping
the rotating speed constant under the loaded condition.
Soft start feature
Soft start feature suppresses starting shock.
Overload protector
When the load on the tool exceeds admissible levels,
power to the motor is reduced to protect the motor from
overheating. When the load returns to admissible levels,
the tool will operate as normal.
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. 5 & 6)
CAUTION:
• Always be sure that the side grip is installed securely
before operation.
Remove one of the screws which secure the head cover.
Then, screw the side grip into the screw hole.
Installing pad and abrasive disc (Fig. 7 & 8)
Remove all dirt or foreign matter from the pad.
Screw the pad onto the spindle with pressing the shaft
lock.
Attach the abrasive disc on the center of the pad. Pay
attention that the pad is placed inside of the edge of the
abrasive disc.
To remove the abrasive disc, peel off its edge from the
pad.
WHEN USING AS A GRINDER (Fig. 9, 10 & 11)
When using the tool as a grinder, remove the head cover
and install the side grip and an optional wheel guard.
Loosen the screws and remove the head cover.
Screw the side grip securely on the position of the tool as
shown in the figure.
CAUTION:
• Always be sure that the side grip is installed securely
before operation.
Installing or removing wheel guard (For
depressed center wheel, flap disc, flex wheel,
wire wheel brush / abrasive cut-off wheel,
diamond wheel) (optional accessory) (Fig. 12, 13
& 14)
WARNING:
• When using a depressed center wheel, flap disc, flex
wheel or wire wheel brush, the wheel guard must be fit-
ted 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 some European countries,
when using a diamond wheel, the ordinary guard can
be used. Follow the regulations in your country.)
9