Functional Description; Adjusting Depth Of Cut; Bevel Cutting - Makita N5900B Instruction Manual

2. Check the operation of the lower guard spring.
If the guard and the spring are not operating
properly, they must be serviced before use.
Lower guard may operate sluggishly due to
damaged parts, gummy deposits, or a build-up of
debris.
The lower guard may be retracted manually
3.
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 material, the lower guard
must be released. For all other sawing, the lower
guard should operate automatically.
4. Always observe that the lower guard is cover-
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.
To check lower guard, open lower guard by
5.
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,
pressure treated lumber, or wood containing
knots. Maintain smooth advancement of tool with-
out 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
5. Before setting the tool down after completing a
cut, be sure that the guard has closed and the
blade has come to a complete stop.
6. Never attempt to saw with the circular saw
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 inhala-
tion and skin contact. Follow material supplier
safety data.
8. Do not stop the blades by lateral pressure on
the saw blade.
9. Do not use any abrasive wheels.
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.
8 ENGLISH