Maintenance - KNOVA KN M-3059R Manual Del Usuario

MAINTENANCE

WARNING
To reduce the risk of injury, turn unit off
and disconnect it from power source before installing
and removing accessories, before adjusting or when
making repairs. An accidental start-up can cause injury.
MAINTENANCE
DANGER
To avoid injury, never put lubricants on the
blade while it is spinning.
WARNING
• To avoid fire or toxic reaction, never use
gasoline, naphtha acetone, lacquer thinner or similar
highly volatile solvents to clean the miter saw.
• To avoid injury from unexpected starting or electrical
shock, unplug the power cord before working on the saw.
• To avoid electrical shock, fire or injury, use only parts
identical to those identified in the parts list.
Reassemble exactly as the original assembly to avoid
electrical shock.
REPLACING CARBON BRUSHES (FIG. SS)
The carbon brushes furnished will last approximately 50 hours
of running time, or 10,000 ON/OFF cycles. Replace both
carbon brushes when either has less than 1/4 in. length of
carbon remaining, or if the spring or wire is damaged or
burned. To inspect or replace brushes, first unplug the saw.
Then remove the black plastic cap (1) on the side of the
motor (2). Remove the cap cautiously, because it is
springloaded. Then pull out the carbon brush (3) and replace.
To reassemble, reverse the procedure. The ears on the metal
end of the assembly go in the same hole the carbon part fits
into. Tighten the cap snugly, but do not overtighten. Repeat
for the carbon brush located on the other side of motor.
NOTE: To reinstall the same brushes, first make sure the
brushes go back in the way they came out. This will avoid a
break-in period that reduces motor performance and
increases wear.
LOWER BLADE GUARD
Do not use the saw without the lower blade guard. The lower
blade guard is attached to the saw for your protection. Should
the lower guard become damaged, do not use the saw until
the damaged guard has been replaced. Regularly check to
make sure the lower guard is working properly. Also check
before each use that all bolts/screws are tight. Clean the
lower guard of any dust or buildup with a damp cloth.
WARNING
• When cleaning the lower guard, unplug
the saw from the power source receptacle to avoid
unexpected start-up.
• Do not use solvents on the guard. They could make the
plastic "cloudy" and brittle.
Fig. SS
3
1
2
SAWDUST
Periodically, sawdust will accumulate under the work table
and base. This could cause difficulty in the movement of the
worktable when setting up a miter cut. Frequently blow out
or vacuum up the sawdust.
Remove small pieces of material from the table cavity if
needed. (See the section on REMOVING AND INSTALLING
THE TABLE INSERT on page 13.)
To empty the dust bag, remove the sawdust bag from the
dust collection elbow. Open the zipper on the sawdust bag
and empty out the sawdust inside. Close the zipper and
reinstall the dust bag as described on page 10.
WARNING
Wear proper eye protection to keep debris
from entering eyes when removing sawdust from unit.
LUBRICATION (FIG. TT)
All the motor bearings in this tool are lubricated with a
sufficient amount of high grade lubricant for the life of the unit
under normal operating conditions; therefore, no further
lubrication is required.
Lubricate the following as necessary:
Chop pivot: Apply light machine oil to points indicated in
illustration.
Central pivot of plastic guard: Use light household oil (sewing
machine oil) on metal-to-metal or metal-to-plastic guard
contact areas as required for smooth, quiet operation. Avoid
excessive oil, to which sawdust will cling.
Central pivot
of plastic
guard (oil here)
24
Fig. TT
Chop Pivot
(oil here and on
opposite side)