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Porter Cable PCB420SA Manual De Instrucciones página 16

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WARNING
!
For your safety, turn switch OFF and remove
the power cord from the electrical outlet before
adjusting or performing maintenance on your
sander.
To avoid electric shock or fi re, all repairs to
the electrical components should be done by
a qualifi ed service technician. Before each use
check for damaged, missing, or worn parts;
check for alignment of moving parts, binding,
improper mounting, or any other conditions
that may affect the operation. Should any of
these conditions exist, do not use the sander
until properly repaired or parts are replaced.
Frequently blow or vacuum dust from all sander
parts and motor housing.
REPLACING SANDING DISC (FIG. S, T)
WARNING
!
To avoid injury, turn switch OFF and disconnect the
plug from the power source before removing and
installing sanding belt.
A sanding disc is pre-mounted at the factory. Use
only sanding discs that measures 8 in.
(203 mm) in diameter.
1. Remove the disc worktable, and then remove the
disc cover (1) by removing six screws (2).
2. Remove the existing disc, and clean any residue left
on disc plate (3). Only use mineral spirits to remove
this residue.
Fig. S
3
2
1
3. Peel the plastic (4) back from new sanding disc (5)
and carefully press sanding disc fi rmly in position
around the sanding plate. Make sure the disc is
centered on the plate.
4. Reinstall the disc cover, tighten screws and place
sanding table back on unit.
Fig. T
MAINTENANCE
5
4
16
REPLACING SANDING BELT (FIG. U)
WARNING
!
To avoid injury, turn switch OFF and disconnect the
plug from the power source before removing and
installing sanding belt.
Use only sanding belts that measures 4 in.
(102 mm) in width / 36 in. (914 mm) in length.
1. Remove the belt worktable. (Fig. D)
2. Loosen the two screws (1, 2) and remove the belt
exhaust (3).
3. Pull tension lever (4) pivotally out to release tension
on the sanding belt (5).
4. Loosen the inner hex screw (6) by turning it counter-
clockwise.
5. Remove sanding belt (5) from both sanding drums
(7).
6. Place new sanding belt over sanding drums. Make
sure the belt arrow located on the inside of the belt is
pointed in the right direction. Push the tension lever
(4) in to apply belt tension
7. Push the belt by hand and check to see if the
sanding belt tends to run to one side or the other on
the two drums.
8. Viewed from the switch end, if the sanding belt
runs toward disc, slightly turn the tracking knob (8)
clockwise (down).
9. Viewed from the switch end, if the sanding belt runs
away from the disc, slightly turn the tracking knob
counterclockwise (up).
10.Plug sander into power source and turn the switch
ON and OFF quickly, and check to see if the sanding
belt moves to either side. Re-adjust and fi ne tune
tracking knob if necessary.
Fig. U
6
2
3
1
4
LUBRICATION
Ball bearings are grease packed at the factory and
require no further lubrication. Use a paste wax to
ensure smooth operation on all moving table parts. Do
not use any lubrication on the belt platen as this might
end up on the wheels, causing them to slip.
5
7
8

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