Ryobi AC04022 Operation Manual

TECHTRONIC INDUSTRIES POWER EQUIPMENT

P.O. Box 1288, Anderson, SC 29622 USA



1-800-860-4050



www.ryobitools.com

This replacement blade is a mulching/bagging combo blade and is for use with

RYOBI

®

21 in. Lawn Mowers ONLY.

WARNING!

To reduce the risk of injury, user must read and understand the operator’s manual for

their lawn mower and this instruction sheet. Always wear eye protection with side

shields marked to comply with ANSI Z87.1. Ensure compatibility and fit before using

this accessory. Do not use this accessory if a part is damaged or missing. If you are

not comfortable performing any of the functions described in these instructions, take

your unit to a qualified service center.

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. Contact

with the blade could result in serious personal injury.

REPLACING THE CUTTING BLADE

See Figures 1 - 2.



Stop the motor and remove the start key. Allow the blade to come to a complete stop.



Remove the battery pack from the battery port.



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.

Do not

remove the hub or

the adaptor.

WARNING:

If the hub and/or the adaptor have been removed, replace them before placing blade

on the shaft. Failure to do so could cause the blade to detach or become unbalanced

since blade will not tighten properly, which can result in serious personal injury.



Place the new blade on the shaft against the blade posts on the hub. Ensure blade is

properly seated with shaft going through center blade hole and the two blade posts

on the hub inserted into their respective holes on the blade. Make sure it is installed

with the curved ends pointing up toward the mower deck and not down toward the

ground. When seated properly, the blade should be flat.



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 310 – 360

in.lbs.

WARNING:

Ensure blade is properly seated and the blade nut is tightened to the torque

specifications above. Failure to properly attach the blade could cause it to come loose

and result in possible serious personal injury.

WARNING:

Only use replacement blades and blade hardware authorized by the manufacturer of

your lawn mower. Unauthorized blades and/or blade hardware could break, allowing

the blade to come loose, resulting in possible serious personal injury and damage to

the mower.

Fig. 2

A - Adaptor (adaptateur, adaptador)

B - Hub (buje, moyeu)

C - Blade post (round) [tiges pour lame (ronde),

montantes de cuchilla (Redondo)]

D - Blade post (half circle) [tige pour lame (demi-

cercle), puerto de la hoja (semicircular)]

E - Blade (lame, hoja)

F - Blade hole (half circle) [trou pour lame (demi-

cercle), orificio de la hoja (semicircular)]

G - Blade hole (round) [trou pour lame (ronde),

orificio de la hoja (redondo)]

H - Blade insulator (isolant de lame, aislante de hoja)

I - Spacer (entretoise, separador)

J - Blade nut (écrou de lame, tuerca de la hoja)

K - Shaft (arbre, eje)

K

D

H

G

E

C

B

A

J

I

F

Fig. 1

A - Blade (lame, hoja)

B - Wrench (clé, llave)

C - Block of wood (pièce de bois, bloque de madera)

A

B

C

LAWN MOWER BLADE

AC04022

Ryobi AC04022 Operation Manual

Ryobi AC04022 Manual

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