Maintenance; Adjusting The Cutting Angle; Replacing Carbon Brushes - Makita LS1440 Instruction Manual

Use screws to attach the wood facing to the guide
•
fence. The screws should be installed so that the
screw heads are below the surface of the wood
facing.
When the wood facing is attached, do not turn the
•
turn base with the handle lowered. The blade
and/or the wood facing will be damaged.
NOTE:
When the wood facing is attached, the maximum
•
cutting capacities in width will be reduced by
thickness of the wood facing.
5. Cutting repetitive lengths
Fig.27
When cutting several pieces of stock to the same
length, ranging from 300 mm to 400 mm, use of the
set plate (optional accessory) will facilitate more
efficient operation. Install the set plate on the holder
(optional accessory) as shown in the figure.
Align the cutting line on your workpiece with either
the left or right side of the groove in the kerf board,
and while holding the workpiece from moving,
move the set plate flush against the end of the
workpiece. Then secure the set plate with the screw.
When the set plate is not used, loosen the screw
and turn the set plate out of the way.
NOTE:
Use of the holder-rod
•
accessory) allows cutting repetitive lengths up to
2,200 mm approximately.
Carrying tool
Fig.28
Make sure that the tool is unplugged. Secure the turn
base at right miter angle fully by means of the grip. Lower
the handle fully and lock it in the lowered position by
turning the handle latch to the locked position.
Carry the tool by holding both sides of the tool base as
shown in the figure. If you remove the holders, dust bag,
etc., you can carry the tool more easily.
Fig.29
CAUTION:
Always secure all moving portions before carrying
•
the tool.
Handle latch is for carrying and storage purposes
•
only and not for any cutting operations.

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.
assembly (optional
11
WARNING:
Always be sure that the blade is sharp and clean for
•
the best and safest performance.

Adjusting the cutting angle

This tool is carefully adjusted and aligned at the factory,
but rough handling may have affected the alignment. If
your tool is not aligned properly, perform the following:
Fig.30
Loosen the grip which secures the turn base. Turn
the turn base so that the pointer points to 0° on the
miter scale. Then turn the turn base slightly
clockwise and counterclockwise to seat the turn
base in the 0° miter notch. (Leave as it is if the
pointer does not point to 0°.) Loosen the hex bolts
securing the guide fence using the socket wrench.
Lower the handle fully and lock it in the lowered
position by turning the handle latch to the locked
position. Square the side of the blade with the face
of the guide fence using a triangular rule, try-square,
etc. Then securely tighten the hex bolts on the
guide fence in the order from the right side.
Fig.31
Make sure that the pointer on the indication plate
points to 0° on the miter scale. If the pointer does
not point to 0°, loosen the screws which secure the
indication plate and adjust it so that the pointer will
point to 0°.
Fig.32
Adjusting for smooth handle action
Fig.33
The hex lock nut which holds the gear housing and the arm
has been factory adjusted to assure smooth handle action
up and down and to guarantee precise cutting. Do not
tamper with it. Should looseness develop at the gear
housing and arm connection, perform the following
adjustment. Work the handle up and down while tightening
the hex lock nut; the best position to tighten the hex lock
nut is just before the motor body weight is obvious.
After adjusting the hex lock nut, be sure that the handle
returns automatically to the initial, raised position from
any position. If the hex lock nut is too loose, the cutting
accuracy will be affected; if it is too tight, it will be hard to
work the handle up and down. Note that this is a self
locking nut. It is a special type that does not loosen in
normal use. It should not be overtightened or replaced
with other types of nuts.

Replacing carbon brushes

Fig.34
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.