Husqvarna 67521 ES User Manual

Operator's

2008-01

Walk Mower

67521 ES

96143003100

Manual

O0802023

Operator's Manual

SAFETY RULES

Safe Operation Practices for Walk-Behind Mowers

IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTA TING HANDS AND FEET AND THROW ING OBJECTS. FAILURE

TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH.

Look for this symbol to point out im­portant safety precautions. It means
CAUTION!!! BE COME ALERT!!! YOUR
SAFETY IS IN VOLVED.

CAUTION: Always disconnect spark plug
wire and place wire where it cannot contact
spark plug in order to prevent ac cidental
starting when setting up, trans porting,
adjusting or making re pairs.

WARNING: Engine exhaust, some of its
constituents, and certain vehicle com po­nents contain or emit chem icals known to
the State of Cal ifornia to cause can cer and
birth defects or oth er re productive harm.

WARNING: Battery posts, terminals and
related ac cessories contain lead and lead
compounds, chemicals known to the State
of Cal ifornia to cause can cer and birth
defects or oth er re productive harm. Wash
hands after handling.

CAUTION: Muffler and other engine parts
become extremely hot during operation
and remain hot after engine has stopped.
T o avoid severe burns on contact, stay away
from these areas.

I. GENERAL OPERATION

• Read, understand, and follow all instructions on the
machine and in the manual(s) before starting. Be thor­oughly familiar with the controls and the proper use of
the machine before starting.

• Do not put hands or feet near or under rotating parts.
Keep clear of the discharge opening at all times.

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

• 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 machine 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 . Always look down and behind before and while
moving backwards.

• Never direct discharged material toward anyone.
Avoid discharging material against a wall or obstruc­tion. Material may richochet back toward the operator .
Stop the blade when crossing gravel surfaces.

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

• See manufacturer’s instructions for proper operation
and installation of accessories. Only use accessories
approved by the manufacturer.

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

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

• Shut the engine (motor) off and wait until the blade comes
to complete stop before removing grass catch er.

• Mow only in daylight or good artificial light.

• Do not operate the machine while under the influence
of alcohol or drugs.

• Never operate machine 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 or drive clutch
on mowers so equipped before starting the engine (motor).

• If the equipment should start to vibrate abnormally,
stop the engine (motor) 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.

II. 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.

DO:

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

• Remove obstacles such as rocks, tree limbs, etc.

• Watch for holes, ruts, or bumps. Tall grass can hide
obstacles.

DO NOT:

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

• Do not trim excessively steep slopes.

• Do not mow on wet grass. Reduced footing could cause
slipping.

III. CHILDREN

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

• Keep children out of the trimming area and under the
watchful care of another re sponsible adult.

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

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

• Never allow children to operate the machine.

• Use extra care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.

IV. SAFE HANDLING OF GASOLINE

Use extreme care in handling gasoline. Gasoline is ex­tremely flammable and the vapors are explosive.

• Extinguish all cigarettes, cigars, pipes and other sources
of ignition.

• Use only an approved container.

• Never remove gas cap or add fuel with the engine run-

2

ning. Allow engine to cool before refueling.

• Never refuel the machine indoors.

• Never store the machine or fuel container where there
is an open flame, spark or pilot light such as a water
heater or on other appliances.

• Never fill containers inside a vehicle, on a truck or trailer
bed with a plastic liner. Always place containers on
the ground away from your vehicle before filling.

• Remove gas-powered equipment from the truck or trailer
and refuel it on the ground. If this is not possible, then
refuel such equipment with a portable container , rather
than from a gasoline dispenser nozzle.

• Keep the nozzle in contact with the rim of the fuel tank
or container opening at all times until fueling is complete.
Do not use a nozzle lock-open device.

• If fuel is spilled on clothing, change clothing immedi­ately.

• Never overfill fuel tank. Replace gas cap and tighten
securely.

V. GENERAL SERVICE

• Never run a machine inside a closed area.

• Never make adjustments or repairs with the engine
(motor) running. Disconnect spark plug wire, and keep

WARNING: This lawn mower is equipped with an internal com bustion engine and should not be used on or near any
unimproved forest-covered, brush-covered or grass-cov ered land unless the engine’s exhaust system is equipped with
a spark arrester meeting applicable local or state laws (if any). If a spark arrester is used, it should be maintained in
effective working order by the operator. A spark arrester for the muffler is available through your nearest authorized
service centre.

wire away from plug to prevent accidental starting.

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

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

• Keep machine free of grass, leaves, or other debris
build-up. Clean oil or fuel spillage. Allow machine 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 (motor) 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 manufacturer’s rec om­mended parts, when necessary.

• Mower blade is sharp and can cut. Wrap the blade or
wear gloves, and use extra caution when servicing it.

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

• Maintain or replace safety and instruction labels, as
necessary.

CONGRATULATIONS on your purchase of a new lawn
mower . It has been designed, engineered and man ufactured
to give you the best possible dependability and performance.

Should you experience any problem you cannot easily
remedy, please contact your nearest authorized service
center/department. We have competent, well-trained
technicians and the proper tools to service or repair this
lawn mower.

Please read and retain this manual. The instructions will
enable you to assemble and maintain your lawn mower
properly. Always observe the “SAFETY RULES”.

SERIAL
NUMBER: _________________________________

DATE OF PURCHASE: _______________________
THE MODEL AND SERIAL NUMBERS WILL BE FOUND

ON A DECAL A TTACHED TO THE REAR OF THE LAWN
MOWER HOUSING.

YOU SHOULD RECORD BOTH SERIAL NUMBER AND
DATE OF PURCHASE AND KEEP IN A SAFE PLACE
FOR FUTURE REFERENCE.

PRODUCT SPECIFICATIONS

Gasoline Capacity 1.6 Quarts
and Type: (Unleaded Regular Only)

Oil Type (API SG–SL): SAE 30 (above 32°F);
SAE 5W-30 (below 32°F)

Oil Capacity: 20 Ounces
Spark Plug (Gap: .030"): Champion J19LM or RJ19LM
Blade Bolt Torque: 35-40 ft. lbs. (47-54 N-m)

CUSTOMER RESPONSIBILITIES

• Read and observe the safety rules.

• Follow a regular schedule in maintaining, caring for and
using your lawn mower.

• F ollow the instructions under “Maintenance” and “Stor­age” sec tions of this own er’s manual.

TABLE OF CONTENTS

SAFETY RULES .........................................................2-3

PRODUCT SPECIFICATIONS ....................................... 3

CUSTOMER RESPONSIBILITIES ................................. 3

ASSEMBL Y .................................................................... 4

OPERATION ...............................................................5-8

MAINTENANCE SCHEDULE ........................................ 9

MAINTENANCE ........................................................9-11

SERVICE AND AD JUSTMENTS ............................12-13

STORAGE ...............................................................13-14

TROUBLESHOOTING .................................................15

REPAIR PARTS ...................................................... 16-19

WARRANTY ................................................................. 20

3

ASSEMBLY

Read these instructions and this man ual in its entirety before you attempt to assemble or operate your new lawn mow er.
IMPORTANT: THIS LAWN MOWER IS SHIPPED WITH OUT OIL OR GASOLINE IN THE ENGINE.
Your new lawn mower has been as sembled at the factory with the ex ception of those parts left unassembled for shipping

purposes. All parts such as nuts, washers, bolts, etc., necessary to com plete the as sembly have been placed in the parts
bag. To ensure safe and proper operation of your lawn mow er, all parts and hard ware you assemble must be tightened
securely. Use the correct tools as nec essary to ensure proper tightness.

TO RE MOVE LAWN MOW ER FROM CAR TON

1. Remove loose parts included with mower.

2. Cut down two end corners of car ton and lay end panel
down flat.

3. Remove all packing materials ex cept padding be tween
upper and lower handle and padding holding operator
presence control bar to up per handle.

4. Roll lawn mower out of carton and check carton thor­ougly for ad ditional loose parts.

HOW TO SET UP YOUR LAWN MOW ER

TO UNFOLD HANDLE (See Fig. 1)

IMPORTANT: UNFOLD HANDLE CAREFULLY SO AS

NOT TO PINCH OR DAMAGE CON TROL CABLES.

1. Raise handles until lower handle section locks into
place in mowing position.

2. Remove protective padding, raise upper handle sec tion
into place on lower handle and tighten both handle knobs.

3. Remove handle padding holding operator pres ence
control bar to upper handle.

Your handles may be adjusted for your mowing comfort.
Refer to “ ADJUST HANDLE” in the Service and Ad justments
section of this man ual.

OPERATOR
PRESENCE
CONTROL
BAR

LIFT

UP

LIFT
UP

MOWING

POSITION

UPPER

HANDLE

FRAME

HANDLE

VINYL
BINDINGS

FRAME

OPENING

FIG. 2

TO INSTALL ATTACHMENTS

Your lawn mower was shipped ready to be used as a
mulcher. To convert mower to bagging or discharging,
see “TO CON VERT MOWER” in the Operation section of
this man ual.

TO PREPARE BATTERY (See Fig. 3)

NOTE: Y our battery must be charged before you can start

your lawn mower.

1. Con nect battery charger con nector (male) to harness
connector (fe male).

2. Plug battery charger into 110 volt A.C. outlet.

3. Leave battery charger connected for 24 hours before
starting your engine for the first time.

4. After charging, disconnect harness connector (female)
from bat tery charger connector (male).

Connect your battery charger to charge battery after each use.

IMPORTANT: THE ENGINE WILL NOT RECHARGE YOUR
BATTERY. AT THE END OF THE MOWING SEASON THE
BATTERY SHOULD BE CHARGED FOR 48 HOURS TO
PROTECT THE BATTERY DURING WINTER STORAGE.

HANDLE

KNOB

LOWER

HANDLE

FIG. 1

TO ASSEMBLE GRASS CATCHER (See Fig. 2)

1. Put grass catcher frame into grass bag with rigid part
of bag on the bottom. Make sure the frame handle is
outside of the bag top.

2. Slip vinyl bindings over frame.

NOTE: If vinyl bindings are too stiff, hold them in warm water
for a few minutes. If bag gets wet, let it dry before using.

4

BATTERY
BOX

BATTERY
CHARGER

CAUTION: Always disconnect the en­gine connector (male) from the battery
connector (female) to prevent ac cidental
starting when transporting or stor ing
your lawn mower after the season.

ENGINE

CONNECTOR

(MALE)

CONNECTOR (MALE)

HARNESS

CONNECTOR

(FEMALE)

CHARGER

FIG. 3

OPERATION

KNOW YOUR LAWN MOWER

READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER.
Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls and adjustments.

Save this manual for future reference.

These symbols may appear on your lawn mower or in literature supplied with the product. Learn and understand
their meaning.

OPERATOR PRESENCE CON TROL BAR

KEY START
SWITCH

AUXILIARY
STARTER
HANDLE

GRASS
CATCHER

GASOLINE
FILLER CAP

DRIVE CONTROL LEVER

HANDLE KNOB

ENGINE OIL CAP WITH DIPSTICK

MUFFLER

DRIVE COVER

WHEEL

ADJUSTER

(ON EACH

WHEEL)

AIR FILTER

MULCHER DOOR

IMPORTANT: This lawn mower is shipped

WITHOUT OIL OR GASOLINE in the engine.

SPARK PLUG

HOUSING

MEETS CPSC SAFETY REQUIREMENTS

Our rotary walk-behind power lawn mowers conform to the safety standards of the American National Standards Institute
and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running.

AUXILIARY STARTER HANDLE – used for starting the
engine.

MULCHER DOOR – allows conversion to discharge or
bagging operation.

OPERATOR PRESENCE CONTROL BAR – must be
held down to the handle to start the engine. Release to
stop the engine.

DRIVE CONTROL LEVER – used to engage power-pro­pelled forward mo tion of lawn mower.

KEY START SWITCH – used for start ing the engine.

5

OPERATION

The operation of any lawn mower can result in foreign objects thrown into the eyes, which can result in
severe eye damage. Always wear safety glasses or eye shields while operating your lawn mower or
performing any adjustments or repairs. We recommend standard safety glasses or a wide vision safety
mask over spectacles.

HOW TO USE YOUR LAWN MOWER

ENGINE SPEED

The engine speed was set at the factory for optimum per­formance. Speed is not adjustable.

ENGINE ZONE CONTROL

CAUTION: Federal regulations require
an engine control to be installed on this
lawn mower in order to minimize the risk
of blade contact injury. Do not un der
any cir cumstances attempt to defeat
the function of the operator control. The
blade turns when the engine is running.

• Your lawn mower is equipped with an operator presence
control bar which requires the operator to be positioned
behind the mower handle to start and operate the mower .

DRIVE CONTROL (See Fig. 4A)

• Self-propelling is controlled by hold ing the operator
presence control bar down to the handle and pulling
the drive control lever rearward to the handle. The
farther toward the handle the lever is pulled, the faster
the unit will travel.

• Forward motion will stop when either the operator pres­ence control bar or drive control lever are released. To
stop forward motion without stop ping engine, re lease
the drive control lever only. Hold op erator presence
control bar down against handle to con tinue mowing
without self-propelling.

NOTE: If after releasing the drive control the mower will
not roll backwards, push the mower forward slightly to
disengage drive wheels.

• To keep drive control engaged when turning corners,
push down on the handle to lift the front wheels off the
ground while turning lawn mower.

1. T urn unit off and disconnect spark plug wire from plug.

2. T urn nut on underside of drive control to increase drive
speed.

3. Operate mower to test drive speed. Readjust as required.

4. If condition fails to improve after the above steps (for­ward speed remains the same), your drive belt is worn
and should be re placed.

ADJUSTMENT
TURNBUCKLE

FIG. 4B

TO ADJUST CUTTING HEIGHT (See Fig. 5)

Raise wheels for low cut and lower wheels for high cut,
adjust cutting height to suit your requirements. Me dium
position is best for most lawns.

• T o change cutting height, squeeze adjuster lever to ward
wheel. Move wheel up or down to suit your re quirements.
Be sure all wheels are in the same setting.

NOTE:Adjuster is properly positioned when plate tab inserts
into hole in lever . Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the plate tabs.

LEVER BACKWARD TO LOWER MOWER

PLATE
TAB

OPERATOR PRESENCE CONTROL BAR

DRIVE
CONTROL
LEVER

TO ENGAGE DRIVE

CONTROL

FIG. 4A

DRIVE CONTROL

DISENGAGED

DRIVE CONTROL ADJUSTMENT (See Fig. 4B)

Over time, the drive control system may become “loose”,
resulting in decreased speed. There is a turnbuckle on the
underside of the drive control housing to increase tension
on the drive cable. Pro ceed as follows:

LEVER FORWARD TO RAISE MOWER

FIG. 5

TO CONVERT MOWER

Your lawn mower was shipped ready to be used as a
mulcher. To convert to bagging or discharging:

REAR BAGGING (See Fig. 6)

• Lift rear door of the lawn mower and place the grass
catcher frame hooks onto the door pivot pins.

• T o convert to mulching or dis charging operation, remove
grass catch er and close rear door.

6

LEVER