RIDGID R4520 Manual Del Operador página 22

ASSEMBLY
 Lock the release lever by pushing the lever down.
 Using the open end blade wrench, place the flat open
end into the flats on the arbor shaft.
 Insert the closed end of the other blade wrench over the
hex nut. Holding both wrenches firmly, push the closed
end wrench to the back of the machine. Make sure the
blade nut is securely tightened. Do not overtighten.
NOTE: Arbor shaft has right-hand threads.
 Rotate the blade by hand to make sure it turns freely.
 Lower the blade by unlocking the height adjusting
handwheel and turning it counterclockwise.
 Install the throat plate as described later.
 Check all clearances for free blade rotation.
After installation, adjust the rip scale indicator to account
for the kerf and thickness of the blade. Refer to To Set the
Rip Fence Scale Indicator to the Blade in the Operation
section of this manual. In cutting operations, the scale will be
set to the side of the blade where the cut will be measured
and made.
TO INSTALL/ALIGN/REMOVE THE THROAT
PLATE
See Figures 21 - 22.
WARNING:
If the throat plate is too high or too low, the
workpiece can catch on the uneven edges
resulting in binding or kickback which could
result in serious personal injury. Verify the throat
plate is correctly seated. Before turning on the
saw, perform a dry run of the cutting operation
to make sure that no problems will occur when
the cut is made. If the workpiece catches, do
not attempt to use the saw. Contact customer
service for assistance.
 Lower the saw blade by turning the height adjusting knob
counterclockwise.
 To install the throat plate, rotate the knob to the unlocked
position. Place throat plate onto the saw and rotate the
knob to the locked position.
NOTE: The throat plate may move up and down over time.
If necessary, use a 2.5 mm hex key to adjust the screws
in the throat plate until it is level with the saw table.
 To remove the throat plate, rotate the knob to the unlocked
position. Place your index finger into the hole, lift and pull
the throat plate out toward the front of the saw.
OPEN END BLADE
WRENCH
UNLOCK
THROAT
PLATE
22 - English
CLOSED END
BLADE WRENCH
HOLE
SCREWS
BLADE
NUT
Fig. 20
LOCK
KNOB
Fig. 21
Fig. 22