Makita N5900B Instruction Manual page 7

2. Check the operation of the lower guard spring. If
the guard and the spring are not operating prop-
erly, they must be serviced before use. Lower
guard may operate sluggishly due to damaged parts,
gummy deposits, or a build-up of debris.
3. The lower guard may be retracted manually only for
special cuts such as "plunge cuts" and "compound
cuts". Raise the lower guard by the retracting
handle and as soon as the blade enters the mate-
rial, the lower guard must be released. For all other
sawing, the lower guard should operate automatically.
Always observe that the lower guard is cover-
4.
ing the blade before placing the saw down on
bench or floor. An unprotected, coasting blade
will cause the saw to walk backwards, cutting
whatever is in its path. Be aware of the time it
takes for the blade to stop after switch is released.
5. To check lower guard, open lower guard by hand,
then release and watch guard closure. Also check
to see that retracting handle does not touch
tool housing. Leaving blade exposed is VERY
DANGEROUS and can lead to serious personal injury.
Additional safety warnings
1. Use extra caution when cutting damp wood, pres-
sure treated lumber, or wood containing knots.
Maintain smooth advancement of tool without decrease
in blade speed to avoid overheating the blade tips.
Do not attempt to remove cut material when
2.
blade is moving. Wait until blade stops before
grasping cut material. Blades coast after turn off.
3. Avoid cutting nails. Inspect for and remove all
nails from lumber before cutting.
4. Place the wider portion of the saw base on that part
of the workpiece which is solidly supported, not on
the section that will fall off when the cut is made. If
the workpiece is short or small, clamp it down. DO
NOT TRY TO HOLD SHORT PIECES BY HAND!
► Fig.5
Before setting the tool down after completing a
5.
cut, be sure that the guard has closed and the
blade has come to a complete stop.
Never attempt to saw with the circular saw
6.
held upside down in a vise. This is extremely
dangerous and can lead to serious accidents.
► Fig.6
7. Some material contains chemicals which may be
toxic. Take caution to prevent dust inhalation and
skin contact. Follow material supplier safety data.
8. Do not stop the blades by lateral pressure on
the saw blade.
Do not use any abrasive wheels.
9.
10. Only use the saw blade with the diameter that
is marked on the tool or specified in the man-
ual. Use of an incorrectly sized blade may affect
the proper guarding of the blade or guard opera-
tion which could result in serious personal injury.
11. Keep blade sharp and clean. Gum and wood
pitch hardened on blades slows saw and
increases potential for kickback. Keep blade clean
by first removing it from tool, then cleaning it with
gum and pitch remover, hot water or kerosene.
Never use gasoline.
12. Wear a dust mask and hearing protection when
use the tool.
13. Always use the saw blade intended for cutting
the material that you are going to cut.
14. Only use the saw blades that are marked with a speed
equal or higher than the speed marked on the tool.
15. (For European countries only)
Always use the blade which conforms to
EN847-1.
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 depth of cut
► Fig.7: 1. Lever
CAUTION:
• Use a shallow depth of cut when cutting thin
workpiece for cleaner, safer cutting.
• After adjusting the depth of cut, always tighten
the lever securely.
Loosen the lever on the depth guide and move the base
up or down. At the desired depth of cut, secure the base
by tightening the lever.
Bevel cutting
► Fig.8: 1. Wing nut 2. Bevel scale plate
Loosen the clamping screws in front and back, and tilt
the tool to the desired angle for bevel cuts (0° - 50°).
Secure the clamping screws tightly in front and back
after making the adjustment.
Sighting
► Fig.9: 1. Base plate 2. Cutting line
For straight cuts, align the A position on the front of the
base with your cutting line. For 45° bevel cuts, align the
B position with it.
Switch action
► Fig.10: 1. Lock button / Lock-off button 2. Switch
trigger
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
7 ENGLISH