Ryobi P550 Operator's Manual page 16

n Replace outer blade washer. The double "D" flats on the
blade washers align with the flats on the spindle.
n Depress spindle lock button and replace blade bolt.
NOTE: The blade bolt has left hand threads. Turn blade
bolt counterclockwise to tighten.
n Using the blade wrench provided, tighten blade bolt
securely.
n Remove the blade wrench and store it in a safe place for
future use.
n Replace the lower blade guard and blade bolt
cover.
n Retighten phillips screw securing blade bolt cover.
Tighten screw securely. See Figure 15.
WARNING:
To prevent damage to the spindle lock, always allow
motor to come to a complete stop before engaging
spindle lock. Make sure the spindle lock button is not
engaged before attaching battery.
TO REMOVE BLADE
See Figures 13 - 16.
n Remove the battery pack from the tool.
n Loosen the phillips screw on the blade bolt cover until
blade bolt cover can be raised. See Figures 13 - 15.
n Gently raise the lower blade guard bracket,
releasing lower blade guard from notch so that lower
blade guard and blade bolt cover can be rotated up and
back to expose the blade bolt. See Figure 14.
n Depress the spindle lock button and rotate the blade bolt
until the spindle locks. See Figure 16.
n Using the blade wrench provided, loosen and remove the
blade bolt.
NOTE: The blade bolt has left hand threads. Turn blade
bolt clockwise to loosen.
n Remove outer blade washer. The blade can now be
removed.
ASSEMBLY
TO
LOOSEN
BLADE
BOLT
SPINDLE LOCK
BUTTON
16
BLADE BOLT LOWER BLADE
COVER
DOUBLE "D" FLATS
TO
BLADE
TIGHTEN
OUTER BLADE WASHER
WITH DOUBLE "D" FLATS
GUARD
PHILLIPS
SCREW
FLAT (S)
ON SPINDLE
INNER BLADE
WASHER WITH
Fig. 15
Fig. 16