Maintenance; Operation - Makita 5104S Instruction Manual

ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Hex wrench storage
► Fig.12: 1. Hex wrench
Hex wrench is stored on the tool. To remove hex
wrench, rotate it toward yourself and pull it out.
To install hex wrench, place it on the handle and turn it until
it comes into contact with the protrusion on the handle.
Removing or installing saw blade
► Fig.13: 1. Hex wrench 2. Shaft lock
CAUTION:
• Be sure the blade is installed with teeth pointing
up at the front of the tool.
• Use only the Makita wrench to install or remove
the blade.
To remove the blade, press the shaft lock so that the blade cannot
revolve and use the hex wrench to loosen the hex bolt counter-
clockwise. Then remove the hex bolt, outer flange and blade.
To install the blade, follow the removal procedure in
reverse. BE SURE TO TIGHTEN THE HEX BOLT
CLOCKWISE SECURELY.
► Fig.14: 1. Hex bolt 2. Outer flange 3. Saw blade
4. Inner flange
When changing blade, make sure to also clean upper and lower
blade guards of accumulated sawdust. Such efforts do not, however,
replace the need to check lower guard operation before each use.

OPERATION

CAUTION:
• Be sure to move the tool forward in a straight
line gently. Forcing or twisting the tool will result
in overheating the motor and dangerous kick-
back, possibly causing severe injury.
► Fig.15: 1. Base 2. Rear handle 3. Front handle
Hold the tool firmly. The tool is provided with both a front grip and
rear handle. Use both to best grasp the tool. If both hands are
holding saw, they cannot be cut by the blade. Set the base on the
workpiece to be cut without the blade making any contact. Then
turn the tool on and wait until the blade attains full speed. Now
simply move the tool forward over the workpiece surface, keeping
it flat and advancing smoothly until the sawing is completed.
To get clean cuts, keep your sawing line straight and your
speed of advance uniform. If the cut fails to properly follow
your intended cut line, do not attempt to turn or force the tool
back to the cut line. Doing so may bind the blade and lead
to dangerous kickback and possible serious injury. Release
switch, wait for blade to stop and then withdraw tool. Realign
tool on new cut line, and start cut again. Attempt to avoid posi-
tioning which exposes operator to chips and wood dust being
ejected from saw. Use eye protection to help avoid injury.
Rip fence (Guide rule)
► Fig.16: 1. Rip fence (Guide rule)
The handy rip fence allows you to do extra-accurate
straight cuts. Simply slide the rip fence up snugly
against the side of the workpiece and secure it in
position with the screw on the front of the base. It also
makes repeated cuts of uniform width possible.
Joint assembly
(for connecting a vacuum cleaner)
► Fig.17: 1. Vacuum cleaner
When you wish to perform clean cutting operation, connect a
vacuum cleaner to your tool. Install the joint on the tool using the
screw. Then connect a hose of the vacuum cleaner to the joint.

MAINTENANCE

CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspec-
tion or maintenance.
Clean out the guard to ensure there is no accumu-
•
lated sawdust and chips which may impede the
operation of the guarding system. A dirty guarding
system may limit the proper operation which could
result in serious personal injury. The most effective
way to accomplish this cleaning is with compressed air.
If the dust is being blown out of the guard, be sure
the proper eye and breathing protection is used.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Adjusting for accuracy of 90° cut
(vertical cut)
This adjustment has been made at the factory. But if it is
off, adjust the adjusting screw with a hex wrench while
squaring the blade with the base using a triangular rule,
try square, etc.
► Fig.18: 1. Base 2. Adjusting screw
► Fig.19: 1. Triangular rule
Replacing carbon brushes
► Fig.20: 1. Limit mark
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.
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.21: 1. Brush holder cap 2. Screwdriver
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
8 ENGLISH