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2610Z04970.qxp_9100 1/30/17 10:59 AM Page 15
rized per so n nel may result in misplacing of
internal wires and components which could
cause serious hazard. We recommend that
all tool service be performed by a Dremel
Service Facility.
electrical shock, always remove plug from
wall outlet before performing service or
cleaning.
CARBON BRUSHES
The brushes and commutator in your tool have
been engineered for many hours of
dependable service.
In order to prepare your brushes for use, run
your tool at full speed for 5 minutes under no
load. This will properly "seat" your brushes,
which extends the life of both your brushes
and your tool.
Excessive sparking is a sign of worn out carbon
brushes. Your brushes can be replaced by an
authorized Dremel Service Center.
BEARINGS
Model 9100 has ball bearing construction.
Under normal use no additional lubrication is
required.
FLExIBLE SHAFT LUBRICATION
The flex-shaft should be lubricated after every
50 hours of use. To lubricate, disconnect the
adequate size conductors that is capable
of carrying the current necessary for your
tool must be used. This will prevent
excessive voltage drop, loss of power or
overheating. Grounded tools must use 3-wire
extension cords that have 3-prong plugs and
receptacles.
NOTE: The smaller the gauge number, the
higher the cord capacity.
Maintenance Information
Service
Preventive maintenance
pe r formed by unautho -
To avoid injury from
unexpected starting or
Extension Cords
If an extension cord is
necessary, a cord with
flexible shaft assembly from the motor
housing. Pull the center core out of the flexible
shaft assembly. Wipe a very thin film
automotive wheel bearing grease on to the
center core and reinsert it back into the shaft.
To prevent damage to tool do not over grease
shaft. Too much grease will cause the unit to
overheat.
Reattach the flexible shaft to motor unit.
The flexible shaft inner core may fail after
many hours of continuous use; replacement
parts are available by contacting an authorized
Dremel Service Center.
Cleaning
To
always dis connect the
tool from the power supply before cleaning
or performing any main tenance. The tool
may be cleaned most effectively with
compressed dry air. Always wear safety gog -
gles when cleaning tools with compressed
air.
Ventilation openings and switch levers must be
kept clean and free of foreign matter. Do not
at tempt to clean by inserting pointed objects
through openings.
Certain cleaning agents
and sol vents damage
plastic parts. Some of these are: gasoline,
carbon tetrachlo ride, chlo rinated cleaning
solvents, ammonia and house hold detergents
that contain ammonia.
RECOMMENDED SIZES OF ExTENSION CORDS
120 VOLT ALTERNATING CURRENT TOOLS
Cord Size in A.W.G.
Tool's
Ampere
Cord Length in Feet
Rating
25
50
100
18
16
16
18
16
14
3-6
18
16
14
6-8
16
16
14
8-10
14
12
–
10-12
12-16
avoid
accidents
Wire Sizes in mm 2
Cord Length in Meters
15
30
60
120
150
14
0.75
0.75
1.5
2.5
12
0.75
1.0
2.5
4.0
12
0.75
1.0
2.5
4.0
12
1.0
2.5
4.0
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