17.
Maintaining Your Scroll Saw
FIG. 18
Maintenance
For your own safety, turn power switch
“OFF” and remove plug from the power
source outlet before maintaining or lubricating your Scroll
Saw.
GENERAL
Frequently blow out any dust that may accumulate inside
the motor.
An occasional coat of paste wax on the work table will
allow materials being cut to glide smoothly across the
work surface and deters rust.
Certain cleaning agents and solvents dam-
age plastic parts. Including: gasoline, car-
bon tetrachloride, chlorinated cleaning solvents, ammonia
and household detergents that contain ammonia. Avoiding
use of these and other types of cleaning agents minimizes
the probability of damage.
To avoid shock or fire hazard, if the power
cord is worn or cut, or damaged in any way,
have it replaced immediately.
All repairs, electrical or mechanical, should
be attempted only by trained repairmen.
Contact the nearest Dremel Factory Service Center, or
other competent repair service. Use only Dremel replace-
ment parts, any others may create a hazard.
Carbon Brushes
The brushes and commutator in your tool have been engi-
neered for many hours of dependable service. To maintain
peak efficiency of the motor, we recommend every two to six
months the brushes be examined. Only genuine Dremel
replacement brushes specially designed for your tool should
be used.
The brushes should be inspected frequently when tools are
used continuously. If your tool runs sporadically, loses
power, makes unusual noises or runs at a reduced speed,
check the brushes. To continue using the tool in this condi-
tion will permanently damage your tool.
With the cord unplugged, remove the brush caps one at a
time with a small screwdriver by rotating cap counter-clock-
wise and check each brush (Fig. 17).
If the brush is less than 1/8" long and the end surface of the
brush that contacts the commutator is rough and/or pitted,
they should be replaced. Check both brushes. Usually the
brushes will not wear out simultaneously. If one brush is
worn out, replace both brushes. Make sure the brushes are
installed as illustrated. The curved surface of the brush must
match the curvature of the commutator.
After replacing brushes the tool should be run at no-load;
place it on a clean surface and run it freely for 5 minutes
before loading (or using) the tool. This will allow the brushes
to “seat” properly and will give you more hours of life from
each set of brushes. This will also extend the total life of your
tool since the commutator surface will “wear” longer.
Lubrication
ARM BEARINGS
Lubricate the arm bearings with oil after 10 hours of use.
Re-oil after every 50 hours of use or whenever there is a
squeak coming from the bearings.
TO LUBRICATE
1. Turn saw on its side (Fig. 18).
2. Remove rubber plug to expose bronze bearing.
3. Squirt a generous amount of SAE 20 oil around the shaft
end and bronze bearing.
4. Let the oil soak in overnight in this condition.
5. Next day repeat the above procedure for the opposite
side of the saw.
CAUTION
!
WARNING
!
WARNING
!
FIG. 17
WARNING
!
BRUSH
CAP
BRUSH
SPRING
BRUSH
