Tool Lubrication; Carbon Brushes; Maintenance - Skil 7490 Operating/Safety Instructions Manual

Preventive maintenance
!
WARNING
performed by unauthorized
personnel may result in misplacing of
internal wires and components which
could cause
recommend that all tool service be performed
by a Skil Factory Service Center or Authorized
Skil Service Station.

TOOL LUBRICATION

Your Skil tool has been properly lubricated
and is ready to use. It is recommended that
tools with gears be regreased with a special
gear lubricant at every brush change.

CARBON BRUSHES

The brushes and commutator in your tool
have been engineered 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 Skil replacement brushes
specially designed for your tool should be
used.
BEARINGS
After about 300-400 hours of operation, or at
every second brush change, the bearings
If an extension cord is
!
WARNING
necessary, a cord with
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 heavi-
er the cord.
Service
serious hazard.

Maintenance

should be replaced at Skil Factory Service
Center or Authorized Skil Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.
We
!
WARNING
the power supply before cleaning or
performing any maintenance. The tool may
be cleaned most effectively with compressed
dry air. Always wear safety goggles when
cleaning tools with compressed air.
Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not attempt to clean by inserting pointed
objects through openings.
! CAUTION
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning
solvents,
detergents that contain ammonia.
Accessories
RECOMMENDED SIZES OF EXTENSION CORDS
120 VOLT ALTERNATING CURRENT TOOLS
Tool's
Ampere
Rating
3-6
6-8
8-10
10-12
12-16
-9-
Cleaning
To avoid accidents, always
disconnect the tool from
Certain cleaning agents
and solvents damage
ammonia and
Cord Length in Feet Cord Length in Meters
25 50 100 150
18 16 16 14 0.75 0.75 1.5
18 16 14 12 0.75 1.0 2.5
18 16 14 12 0.75 1.0 2.5
16 16 14 12
14 12 — —
household
15 30 60 120
2.5
4.0
4.0
1.0 2.5 4.0 —
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