Ryobi RY40100 - Manual (Page 15)

11 — English
the mower deck and not down toward the ground. When
seated properly, the blade should be flat against the fan
assembly.
 Replace the blade insulator and spacer, then thread the
blade nut on the shaft and finger tighten.
NOTE: Make certain all parts are replaced in the exact
order in which they were removed.
 Torque the blade nut down clockwise using a torque
wrench (not provided) to ensure the bolt is properly
tightened. The recommended torque for the blade nut is
350-400 in. lbs.
STORING THE MOWER
See Figure 15.

Remove the battery and key and store in a secure location
out of the reach of children.
 Before storage, wipe any dirt or debris from the battery
area.
 Turn mower on its side and clean grass clippings that
have accumulated on the underside of the mower deck.
 Wipe the mower clean with a dry cloth.
 Check all nuts, bolts, knobs, screws, fasteners, etc., for
tightness.
 Inspect moving parts for damage, breakage, and wear.
Have repairs made on any damaged or missing parts.
Check blade for damage, uneven, or excessive wear and
replace blade if these conditions exist.
 Lower the handle assembly as described earlier in this
manual.
 Store mower indoors in a clean, dry place out of the reach
of children.
 Do not store near corrosive materials such as fertilizer or
rock salt.
MAINTENANCE
LUBRICATION
All of the bearings in this product are lubricated with a suf-
ficient amount of high grade lubricant for the life of the unit
under normal operating conditions. Therefore, no further
bearing lubrication is required.
WARNING:
Always protect hands by wearing heavy gloves and/or
wrapping the cutting edges of the blade with rags and
other material when performing blade maintenance. Con-
tact with the blade could result in serious personal injury.
REPLACING THE CUTTING BLADE
See Figures 13 - 14.
NOTE: Only use authorized replacement blades.

Stop the motor and remove the key. Allow blade to come
to a complete stop.
 Remove the battery pack.
 Turn the mower on its side.
 Wedge a block of wood between the blade and mower
deck to prevent the blade from turning.
 Loosen the blade nut by turning it counterclockwise (as
viewed from bottom of mower) using a 15 mm wrench
or socket (not provided).
 Remove the blade nut, spacer, blade insulator, and blade.
 Make certain the fan assembly is pushed completely
against the motor shaft.
 Place the new blade on the shaft against the fan as-
sembly. Ensure blade is properly seated with shaft go-
ing through center blade hole and the two blade posts
inserted into their respective holes on the blade. Make
sure it is installed with the curved ends pointing up toward