Functional Description - Makita 3901 Instruction Manual

19. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
20. Do not use blunt or damaged blades.
21. Do not use the tool with damaged guards.
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.
Adjusting the depth of cut
Fig.1
6 cutting depths can be preset according to the size of
biscuit to be used or if trimming the wall or ceiling panels
as explained later. Rotate the stopper until the pointer
points to the appropriate size marked on the stopper.
Refer to the table below for the correspondence between
the sizes marked on the stopper and the biscuit size.
Fine adjustments to the cutting depth can be made by
turning the adjusting screw after loosening the hex nut.
This may become necessary after the blade has been
resharpened a few times.
Size on stopper 0
Biscuit size 0
Depth of cut 8 mm
006424
Angle guide
Fig.2
Fig.3
The angle guide can be moved up and down to adjust the
position of the blade in relation to the top of the
workpiece.
To adjust the angle guide height, loosen the lock lever
down and rotate the knob until the pointer points to the
desired scale graduation marked on the angle guide.
Then tighten the lock lever up to secure the angle guide.
The scale on the angle guide indicates the distance from
the top of the workpiece to the center of the blade
thickness.
Fence
Fig.4
Fig.5
The angle of the fence can be adjusted between 0° and
90° (positive stops at 0°, 45° and 90°). To adjust the
angle, loosen the lock lever and tilt the fence until the
pointer points to the desired graduation on the angle
scale. Then tighten the lock lever to secure the fence.
When the fence is set at 90°, both the distance from the
center of the blade thickness to the fence and the
distance from the center of the blade thickness to the
bottom of the base are 10 mm.
Set plate
Fig.6
Fig.7
Use the set plate as shown in the figures when cutting
slots in thin workpieces.
7
10 20 S D
10 20 - -
10 mm 12.3 mm 13 mm 14.7 mm 20 mm
MAX
-