Lawn-Boy Silver 10272, Silver 10367 Operator's Manual

Silver Series Lawn Mower

Model No. 10272—Serial No. 240000001 and Up
Model No. 10367—Serial No. 240000001 and Up

Introduction

Read this manual carefully to learn how to operate
and maintain your product properly and to avoid injury
and product damage. You are responsible for
operating the product properly and safely.

You may contact Lawn-Boy directly at
www.Lawn-Boy.com for product and accessory
information, help finding a dealer, or to register your
product.

Whenever you need service, genuine Lawn-Boy
parts, or additional information, contact an Authorized
Service Dealer or Lawn-Boy Customer Service and
have the model and serial numbers of your product
ready. The illustration below identifies the location of
the model and serial numbers on the product. Write
the numbers in the space provided below:

Form No. 3350-614 Rev A

Operator ’s Manual

Important: This engine is not equipped with a spark

arrester muffler. It is a violation of California Public
Resource Code Section 4442 to use or operate this
engine on any forest-covered, brush-covered or
grass-covered land. Other states or federal areas
may have similar laws.

This spark ignition system complies with Canadian
ICES-002.

The enclosed Engine Owner’s Manual is supplied for
information regarding The U.S. Environmental
Protection Agency (EPA) and the California Emission
Control Regulation of emission systems, maintenance
and warranty. Replacements may be ordered through
the engine manufacturer.

Safety

Model #:

Serial #:

This manual identifies potential hazards and has
safety messages identified by the following words:

• Danger signals an extreme hazard that will
cause serious injury or death if you do not follow
the recommended precautions.

• Warning signals a hazard that may cause
serious injury or death if you do not follow the
recommended precautions.

• Caution signals a hazard that may cause minor
or moderate injury if you do not follow the
recommended precautions.

This manual uses two other words to highlight
information. Important: calls attention to special
mechanical information and Note: emphasizes
general information worthy of special attention.

1064

Warning

The engine exhaust from this product contains
chemicals known to the State of California to
cause cancer, birth defects, or other reproductive
harm.

1

This lawn mower meets or exceeds the CPSC blade
safety requirements for walk-behind rotary lawn
mowers and the B71.1 specifications of the American
National Standards Institute in effect at the time of
production.

Read and understand the contents of this manual
before the engine is ever started.

This is the safety alert symbol. It is used to
alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol
to avoid possible injury or death.

Improperly using or maintaining this mower
could result in injury or death. To reduce this
potential, comply with the following safety
instructions.

The following instructions have been adapted from
the ANSI/OPEI standard B71.1—1998.

General Operation

• Read, understand, and follow all instructions on

the machine and in the manual. Be thoroughly
familiar with the controls and the proper use of
the mower before starting.

• Do not put hands or feet near or under rotating

parts. Keep clear of the discharge opening at all
times.

 2003—Lawn-Boy, Inc.
8111 Lyndale Ave., Bloomington, MN 55420, USA

Printed in the USA

All Rights Reserved

Register your product at www.Lawn-Boy.com

Original Instructions (EN)

2

• Only allow responsible individuals, who are
familiar with the instructions, to operate the
mower.

• Clear the area of objects such as rocks, toys,
wire, bones, sticks etc., which could be picked up
and thrown by the blade.

• Be sure the area is clear of other people before
mowing. Stop mower if anyone enters the area.

• Do not operate the mower when barefoot or
wearing open sandals. Always wear substantial
foot wear.

• Do not pull mower backwards unless absolutely
necessary. Look down and behind before and
while moving backwards.

• Do not operate the mower without proper guards,
plates, grass catcher or other safety protective
devices in place.

• See the Lawn-Boy instructions for proper
operation and installation of accessories. Only
use Lawn-Boy accessories.

• Stop the blade when crossing gravel drives,
walks, or roads.

• Stop the engine whenever you leave the
equipment, before cleaning the mower or
unclogging the chute.

• Shut the engine off and wait until the blade comes
to complete stop before removing grass catcher.

• Mow only in daylight or good artificial light.

• Do not operate the mower while under the

influence of alcohol or drugs.

• Never operate mower in wet grass. Always be
sure of your footing; keep a firm hold on the
handle and walk; never run.

• Disengage the self-propelled mechanism before
starting the engine.

• If the equipment should start to vibrate
abnormally, stop the engine and check
immediately for the cause. Vibration is generally a
warning of trouble.

• Always wear safety goggles or safety glasses
with side shields when operating mower.

• Do not mow near drop-offs, ditches, or
embankments. The operator could lose footing or
balance.

• Do not mow excessively steep slopes.

• Do not mow on wet grass. Reduced footing could

cause slipping.

Children

Tragic accidents can occur if the operator is not alert
to the presence of children. Children are often
attracted to the mower and the mowing activity. Never
assume that children will remain where you last saw
them.

• Keep children out of the mowing area and under
the watchful care of a responsible adult.

• Be alert and turn mower off if children enter the
area.

• Before and while moving backwards, look behind
and down for small children.

• Never allow children to operate the mower.

• Use extra care when approaching blind corners,

shrubs, trees, or other objects that may obscure
vision.

Service

• Use extra care in handling gasoline. It is
flammable and vapors are explosive.

• Use only an approved container.

• Never remove gas cap or add fuel with the

engine running. Allow engine to cool before
refueling. Do not smoke.

• Never refuel the machine indoors.

• Never store the machine or fuel container

inside where there is an open flame, such as
a water heater.

• Never run an engine inside a closed area.

Warning

Slope Operation

• Slopes are a major factor related to slip and fall
accidents which can result in severe injury. All
slopes require extra caution. If you feel uneasy on
a slope, do not mow it.

• Mow across the face of slopes; never up and
down. Exercise extreme caution when changing
direction on slopes.

• Remove objects such as rocks, tree limbs, etc.
Watch for holes, ruts, or bumps. Tall grass can
hide obstacles.

Exhaust contains carbon monoxide, an odorless,
deadly poison that can kill you.

Do not run the engine indoors or in an enclosed
area.

• Never make adjustments or repairs with the
engine running. Disconnect the spark plug wire,
and set the wire aside so that it does not
accidentally contact the spark plug.

• Keep all nuts and bolts, especially blade
attachment bolts, tight and keep equipment in
good condition.

3350-614 Rev A

3

• Never tamper with safety devices. Check their
proper operation regularly.

• Keep mower free of grass, leaves, or other debris
build-up. Clean up oil or fuel spillage. Allow
mower to cool before storing.

• Stop and inspect the equipment if you strike an
object. Repair, if necessary, before restarting.

• Never attempt to make wheel height adjustments
while the engine is running.

• Grass catcher components are subject to wear,
damage, and deterioration, which could expose
moving parts or allow objects to be thrown.
Frequently check components and replace with
genuine Lawn-Boy parts, when necessary.

• Mower blades are sharp and can cut. Wrap the
blade or wear gloves, and use extra caution when
servicing them.

• Do not change the engine governor setting or
overspeed the engine.

Safety/Instruction Decals

Important: Safety and instruction decals are located near areas of potential danger. Replace damaged decals.

92-2914

43-8480

99-6018

92-2915

93-7250

3350-614 Rev A

4

Product Overview

5

3

2

1

9

1. Cutting height lever

2. Oil fill/Dipstick

3. Recoil start handle

4. Self-propel drive bar
(self-propel model only)

5. Blade control bar

4

6

7

8

m-6584a

6. Fuel tank cap

7. Air filter

8. Primer

9. Spark plug

10. Rear grass bag
(self-propel model only)

Setup

Important: Remove and discard the protective plastic

sheet that covers the engine.

Unfolding the Handle

Warning

Folding or unfolding the handle improperly can
damage the cables, causing an unsafe operating
condition.

 Do not damage the cables when folding or

unfolding the handle.

 If a cable is damaged, contact an Authorized

Service Dealer.

1. Carefully move the upper handle forward until the

handle halves are in line and nest together as shown.

m-5602c

2. Tighten the handle
knobs.

m-6289

3. Rotate the handle rearward (as shown) until it
clicks into place.

m-5602a

3350-614 Rev A

Filling the Engine with Oil

Your mower does not come with oil in the engine,

but it does come with a 20 oz. (0.59 l) bottle of oil.
Max. fill: 20 oz., type: SAE 30W detergent oil with an

API service classification of SF, SG, SH, or SJ.

1. Remove the dipstick.

5

m-6587

2. Slowly pour oil into the oil fill tube to raise the oil
level to the Full mark on the dipstick. Do not overfill.

3. Install the dipstick securely.
Important: Change the engine oil after the first 2

operating hours; change it yearly thereafter. Refer

to Changing the Engine Oil on page 13.

m-6588

Before Operating

Danger

Gasoline is extremely flammable and explosive. A fire or explosion from gasoline can
burn you and others.

 To prevent a static charge from igniting the gasoline, place the container and/or

mower directly on the ground before filling, not in a vehicle or on an object.

 Fill the tank outdoors when the engine is cold. Wipe up spills.
 Do not handle gasoline when smoking or around an open flame or sparks.
 Store gasoline in an approved fuel container, out of the reach of children.

Adjusting the cutting height may bring you into contact with the moving blade, causing
serious injury.

 Stop the engine and wait for all moving parts to stop.
 Do not put your fingers under the housing when adjusting the cutting height.

Warning

3350-614 Rev A