Maintenance; Replacing Carbon Brushes - Makita 3709 Betriebsanleitung

Circular work
Circular work may be accomplished if you assemble the
straight guide and guide plate as shown in Fig. 13 or 14.
Min. and max. radius of circles to be cut (distance
between the centre of circle and the centre of bit) are as
follows:
Min.: 70 mm
Max.: 221 mm
Fig. 13 for cutting circles between 70 mm and 121 mm in
radius.
Fig. 14 for cutting circles between 121 mm and 221 mm
in radius.
NOTE:
• Circles between 172 mm and 186 mm in radius cannot
be cut using this guide.
Align the centre hole in the straight guide with the centre
of the circle to be cut. Drive a nail less than 6 mm in
diameter into the centre hole to secure the straight guide.
Pivot the tool around the nail in clockwise direction.
(Fig. 15)
Trimming, curved cuts in veneers for furniture and the like
can be done easily with the trimmer guide. The guide
roller rides the curve and assures a fine cut. (Fig. 16)
Install the trimmer guide on the tool base with the clamp
screw (A). Loosen the clamp screw (B) and adjust the
distance between the bit and the trimmer guide by turn-
ing the adjusting screw (1 mm per turn). At the desired
distance, tighten the clamp screw (B) to secure the trim-
mer guide in place. (Fig. 17)
When cutting, move the tool with the guide roller riding
the side of the workpiece. (Fig. 18)

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.

Replacing carbon brushes

Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes. (Fig. 19)
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps. (Fig. 20)
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centres, always
using Makita replacement parts.
Noise
The typical A-weighted noise level determined according
to EN60745:
Sound pressure level (L
Uncertainty (K): 3 dB (A)
The noise level under working may exceed 80 dB (A).
Wear ear protection
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Work mode: rotation without load
Vibration emission (a
Uncertainty (K): 1.5 m/s
• The declared vibration emission value has been meas-
ured in accordance with the standard test method and
may be used for comparing one tool with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the power
tool can differ from the declared emission value
depending on the ways in which the tool is used.
• Be sure to identify safety measures to protect the oper-
ator that are based on an estimation of exposure in the
actual conditions of use (taking account of all parts of
the operating cycle such as the times when the tool is
switched off and when it is running idle in addition to
the trigger time).
For European countries only
EC Declaration of Conformity
Makita declares that the following Machine(s):
Designation of Machine:
Trimmer
Model No./ Type: 3709
Conforms to the following European Directives:
2006/42/EC
They are manufactured in accordance with the following
standard or standardized documents:
EN60745
The technical file in accordance with 2006/42/EC is avail-
able from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
Yasushi Fukaya
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
): 80 dB (A)
pA
2
): 2.5 m/s or less
h
2
3.8.2015
Director
ENG905-1
ENG900-1
ENG901-1
ENH101-17
7