Adjustments - RIDGID R4520 Manual Del Operador

ADJUSTMENTS

WARNING:
Before performing any adjustment, make sure the
tool is unplugged from the power supply and the
top button on the switch is not depressed. Failure
to heed this warning could result in serious
personal injury.
To avoid unnecessary set-ups and adjustments, a good
practice is to check your setups carefully with a framing
square and make practice cuts in scrap wood before making
finish cuts in good workpieces. Do not start any adjustments
until you have checked with a square and made test cuts to
be sure adjustments are needed.
TO REPLACE THE BLADE
See Figures 79 - 80.
Wear gloves and other personal protective equipment when
installing and removing a blade only. DO NOT wear gloves
when operating the saw. DO NOT place gloved hand near
blade when it is in motion.
Use correct blades. Blade kerf width and blade body
thickness must be within the limits stamped on the riving
knife.
 Unplug the saw.
 Remove the blade guard and anti-kickback pawls.
 Lower the saw blade and remove the throat plate.
 Make sure the bevel lock knob is tightened.
 Raise the saw blade to full height.
 Insert the open end wrench onto the flats on the arbor
shaft.
 Insert the closed end wrench over the hex nut. Holding
both wrenches firmly, pull the outside wrench (right side)
forward while pushing the inside (left side) to the back of
the saw. Remove the blade nut and blade washer.
NOTE: Arbor shaft has right-hand threads.
 Unlock the release locking lever and remove the blade.
To replace the blade with an accessory blade, follow the
instructions provided with the accessory.
To install a standard blade:
 Place the new blade on the arbor shaft (blade teeth must
point down toward the front of the saw to work properly).
 Place the blade washer and the blade nut over the arbor
shaft. Be sure the domed side of the blade washer faces
out from the blade and that all items are snug against
the arbor flange. Make sure the blade nut is securely
tightened. Do not overtighten.
OPEN END BLADE
WRENCH
ARBOR
SHAFT
NOTE: Arbor shaft has right-hand threads.
 Lock the release lever.
 Rotate the blade by hand to make sure it turns freely.
 Lower the saw blade and reinstall the throat plate.
 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.
50 - English
CLOSED END
BLADE WRENCH
BLADE
NUT
Fig. 79
RELEASE
LEVER
BLADE
BLADE
WASHER
BLADE
NUT
Fig. 80