Husqvarna Lawn Mower 532 41 44 89 User Guide

Owner’s Manual  
ROTARY LAWN MOWER  
650 Series Briggs & Stratton Engine  
Power-Propelled  
21" Multi-Cut  
Model Number 6521RS  
Product Number 961 45 00-05 01  
2007-05  
CAUTION:  
Read and follow all  
Safety Rules and Instructions  
before operating this equipment  
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TABLE OF CONTENTS  
Safety Rules ..........................................2-3 Maintenance......................................12-15  
Warranty...................................................4 Service and Adjustments...................15-16  
Product Specifi cations..............................5 Storage..............................................16-17  
Assembly / Pre-Operation ........................6 Troubleshooting.................................17-18  
Operation.............................................7-11 Repair Parts.......................................36-39  
Maintenance Schedule...........................12  
SAFETY RULES  
IMPORTANT: Thiscuttingmachineiscapableofamputatinghandsandfeetandthrowingob-  
jects.Failuretoobservethefollowingsafetyinstructionscouldresultinseriousinjuryordeath.  
• Do not operate the mower when bare-  
foot or wearing open sandals. Always  
wear substantial foot wear.  
Look for this symbol to point out im-  
portant safety precautions. It means  
CAUTION!!! BECOME ALERT!!!  
YOUR SAFETY IS INVOLVED.  
WARNING: Inordertopreventaccidental  
starting when setting up, transporting, ad-  
justingormakingrepairs,alwaysdisconnect  
sparkplugwireandplacewirewhereitcannot  
come in contact with plug.  
WARNING: Engine exhaust, some of its  
constituents, and certain vehicle compo-  
nents contain or emit chemicals known to  
the State of California to cause cancer and  
birth defects or other reproductive harm.  
WARNING: Battery posts, terminals and  
related accessories contain lead and lead  
compounds, chemicals known to the State  
of California to cause cancer and birth  
defects or other reproductive harm. Wash  
hands after handling.  
• Donotpullmowerbackwardsunlessabso-  
lutelynecessary.Alwayslookdownandbe-  
hind before and while moving backwards.  
• Never direct discharged material toward  
anyone. Avoid discharging material  
againstawallorobstruction. Materialmay  
richochet back toward the operator. Stop  
the blade when crossing gravel surfaces.  
• Do not operate the mower without prop-  
er 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 ap-  
proved 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 catcher.  
• Mowonlyindaylightorgoodartificiallight.  
• Do not operate the machine while under  
the influence of alcohol or drugs.  
CAUTION: Muffler and other engine  
parts become extremely  
hot during operation and  
remain hot after engine  
has stopped. To avoid  
severe burns on contact,  
stay away from these areas.  
I. GENERAL OPERATION  
• Never operate machine in wet grass.  
Always be sure of your footing: keep a  
firm hold on the handle; walk, never run.  
• Disengage the self-propelled mech-  
anism or drive clutch on mowers so  
equipped before starting the engine.  
• If the equipment should start to vibrate  
abnormally, stop the engine (motor) and  
check immediately for the cause. Vibra-  
tion is generally a warning of trouble.  
• Alwayswearsafetygogglesorsafetyglass-  
eswithsideshieldswhenoperatingmower.  
• 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 dis-  
charge 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., whichcould  
be picked up and thrown by blade.  
• Be sure the area is clear of other people  
before mowing. Stop the machine if  
anyone enters the area.  
II. SLOPE OPERATION  
Slopes are a major factor related to slip &  
fall accidents which can result in severe  
injury. All slopes require extra caution. If  
you feel uneasy on a slope, do not mow it.  
2
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WARRANTY  
SECTION 1: LIMITED WARRANTY  
(4)Additional damage to parts or components due to  
continued use occurring after any of the above.  
Husqvarna Forest & Garden Company (“Husqvarna”)  
warrants Husqvarna product to the original purchaser  
to be free from defects in material and workmanship  
from the date of purchase for the “Warranty Period” of  
the product as set forth below:  
REPAIR OR REPLACEMENT AS PROVIDED UNDER  
THIS WARRANTY IS THE EXCLUSIVE REMEDY OF  
THE PURCHASER. HUSQVARNA SHALL NOT BE  
LIABLE FOR ANY INCIDENTAL OR CONSEQUEN-  
TIAL DAMAGES FOR BREACH OF ANY EXPRESS  
OR IMPLIED WARRANTY ON THESE PRODUCTS  
EXCEPT TO THE EXTENT PROHIBITED BY AP-  
PLICABLE LAW. ANY IMPLIED WARRANTY OF  
MERCHANTABILITY OR FITNESS FOR A PARTICU-  
LAR PURPOSE ON THESE PRODUCTS IS LIMITED  
IN DURATION TO THE WARRANTY PERIOD AS  
DEFINED IN THE LIMITED WARRANTY STATE-  
MENT. HUSQVARNA RESERVES THE RIGHT TO  
CHANGE OR IMPROVE THE DESIGN OF THE  
PRODUCT WITHOUT NOTICE, AND DOES NOT  
ASSUME OBLIGATION TO UPDATE PREVIOUSLY  
MANUFACTURED PRODUCTS.  
2 YEAR NON-COMMERCIAL WARRANTY: Auto-  
matic Mower, Riding lawn mowers, yard and garden  
tractors, walk behind mowers, tillers, chain saws,  
trimmers, brushcutters, clearing saws, snow blowers,  
handheld blowers, backpack blowers, hedge trimmers,  
electrical products and power-assist collection systems  
for noncommercial, nonprofessional, noninstitutional or  
nonincome producing use, except as herein stated.  
Emission control system components necessary to  
comply with CARB-TIER-II and EPA regulations.  
Husqvarna Safety Apparel carries a 90-day warranty  
from the date of the customer’s original purchase for  
defects in material and workmanship. Normal wear,  
tear or abuse is not covered under warranty. Product  
must be returned to Charlotte with a warranty claim  
form. All care and maintenance instructions must be  
followed as stated by the manufacturer on the care  
label. The fit of the protective apparel/boot is not  
covered under warranty.  
Some states do not allow the exclusion of incidental  
or consequential damages, or limitations on how long  
an implied warranty lasts, so the above limitations or  
exclusions may not apply to you. This warranty gives  
you specific legal rights, and you may also have other  
rights which vary from state to state.  
SECTION 5: CUSTOMER RESPONSIBILITIES  
The product must exhibit reasonable care, mainte-  
nance, operation, storage and general upkeep as  
written in the maintenance section of the Owner’s/  
Operator’s manual. Should an operational problem  
or failure occur, the product should not be used, but  
delivered as is to an authorized Husqvarna dealer for  
evaluation. Proof of purchase, as explained in section  
6, rests solely with the customer.  
SECTION 2: HUSQVARNA’S OBLIGATIONS UNDER  
THE WARRANTY  
Husqvarna will repair or replace defective components  
without charge for parts or labor if a component fails  
because of a defect in material or workmanship during  
the warranty period.  
SECTION 3: ITEMS NOT COVERED BY THIS WAR-  
RANTY  
The following items are not covered by this warranty:  
(1)Normal customer maintenance items which become  
worn through normal regular use, including, but  
not limited to, belts, blades, blade adapters, bulbs,  
filters, guide bars, lubricants, rewind springs, saw  
chain, spark plugs, starter ropes and tines;  
(2)Natural discoloration of material due to ultraviolet  
light;  
(3)Lawn and garden attachments are covered by a  
third party which gives a warranty, all claims for  
warranty should be sent to the manufacturer; and  
(4)Emission Control System components necessary  
to which are manufactured by third party engine  
manufacturer.  
SECTION 6: PROCEDURE TO OBTAIN WARRANTY  
CONSIDERATION  
It is the Owner’s and Dealer’s responsibility to make  
certain that the Warranty Registration Card is properly  
filled out and mailed to Husqvarna Forest & Garden  
Company. This card should be mailed within ten (10)  
days from the date of purchase in order to confirm the  
warranty and to facilitate post-sale service.  
Proof of purchase must be presented to the authorized  
Husqvarna dealer in order to obtain warranty service.  
This proof must include date purchased, model num-  
ber, serial number, and complete name and address of  
the selling dealer.  
SECTION 4: EXCEPTIONS AND LIMITATIONS  
This warranty shall be inapplicable to defects resulting  
from the following:  
(1)Accident, abuse, misuse, negligence and neglect,  
including stale fuel, dirt, abrasives, moisture, rust,  
corrosion, or any adverse reaction due to incorrect  
storage or use habits;  
(2)Failure to operate or maintain the unit in accor-  
dance with the Owner’s/Operator’s manual or  
instruction sheet furnished by Husqvarna;  
(3)Alterations or modifications that change the  
intended use of the product or affects the product’s  
performance, operation, safety, or durability, or  
causes the product to fail to comply with any ap-  
plicable laws; or:  
To obtain the benefit of this warranty, the product  
believed to be defective must be delivered to an  
authorized Husqvarna dealer in a timely manner, no  
later than thirty (30) days from date of the operational  
problem or failure. The product must be delivered at  
the owner’s expense. Pick-up and delivery charges are  
not covered by this warranty. An authorized Husqvarna  
dealer can be normally located through the “Yellow  
Pages” of the local telephone directory or by calling  
1-800-HUSKY62 for a dealer in your area.  
HUSQVARNA  
7349 Statesville Road  
Charlotte, NC 28269  
531 83 81-23 2002  
4
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PRODUCT SPECIFICATIONS  
Serial Number:  
Date of Purchase:  
Gasoline Capacity / Type:  
Oil Type (API SG–SL):  
Oil Capacity:  
1.6 Quarts (Unleaded Regular)  
SAE 30 (above 32°F); SAE 5W-30 (below 32°F)  
20 Ounces  
Spark Plug (Gap: .030")  
Blade Bolt Torque:  
Champion J19LM or RJ19LM  
35-40 ft. lbs.  
• The model and serial numbers will be found on a decal on the rear of the lawn mower  
housing. Record both serial number and date of purchase in space provided above.  
ACCESSORIES  
These accessories were available when this lawn mower was produced. They are not  
shipped with your mower. They are also available at most Husqvarna retailers and  
service centers. Some of these accessories may not apply to your lawn mower.  
Engine Power Rating Information  
The gross power rating for individual gas engine models is labeled in accordance with SAE (So-  
ciety of Automo-tive Engineers) code J11940 (Small Engine Power & Torque Rating Procedure),  
and rating performance has been obtained and corrected in accordance with SAE J1995 (Revision  
2002-5). Actual gross engine power will be lower and is affected by, among other things, ambi-  
ent operating conditions and engine-to-engine variability. Given both the wide array of products  
on which engines are placed and the variety of environmental issues applicable to operating the  
equipment, the gas engine will not develop the rated gross power when used in a given piece of  
power equipment (actual “on-site” or net horsepower). This difference is due to a variety of factors  
including, but not limited to, accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel  
pump, etc.), application limitations, ambient operating conditions (temperature, humidity, altitude),  
and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs & Stratton  
may substitute an engine of higher rated power for this Series engine.  
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ASSEMBLY / PRE-OPERATION  
Read these instructions and this manual in its entirety before you attempt to assemble  
or operate your new lawn mower.  
IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine.  
Your new lawn mower has been assembled at the factory with the exception of those  
parts left unassembled for shipping purposes. All parts such as nuts, washers, bolts, etc.,  
necessary to complete the assembly have been placed in the parts bag. To ensure safe  
and proper operation of your lawn mower, all parts and hardware you assemble must be  
tightened securely. Use the correct tools as necessary to ensure proper tightness.  
TOREMOVEMOWERFROMCARTON  
1. Remove loose parts included with  
mower.  
Handle pin  
2. Cut down two end corners of carton  
and lay end panel down flat.  
SQUEEZE  
3. Remove all packing materials except  
padding between upper and lower  
handle and padding holding operator  
presence control bar to upper handle.  
4. Roll lawn mower out of carton and  
check carton thorougly for additional  
loose parts.  
Handle  
bracket  
HOW TO SET UP YOUR MOWER  
TO UNFOLD HANDLE  
IMPORTANT: Unfold handle carefully so  
as not to pinch or damage control cables.  
1. Raise lower handle section to operat-  
ing position and squeeze the bottom  
ends of lower handle towards each  
other until the pin in handle can be  
inserted into one of the three height  
adjustment holes.  
2. Remove protective padding, raise up-  
per handle section into place on lower  
handle and tighten both handle knobs.  
3. Remove any packing material from  
around control bar.  
TO ASSEMBLE GRASS CATCHER  
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.  
Frame  
handle  
Your lawn mower handle can be adjusted  
for your mowing comfort. Refer to “AD-  
JUST HANDLE” in the Service and Adjust-  
ments section of this manual.  
Operator  
presence  
control bar  
MOWING  
POSITION  
LIFT  
UP  
LIFT  
UP  
Upper  
handle  
Vinyl  
bindings  
Frame  
opening  
TO INSTALL ATTACHMENTS  
Handle  
knob  
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 manual.  
Lower handle  
6
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OPERATION  
KNOW YOUR LAWN MOWER  
READ THIS OWNER'S MANUAL AND ALL 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.  
Drive  
control  
lever  
Operator presence control bar  
Handle knob  
Starter  
handle  
Drive cover  
Grass  
catcher  
Engine oil cap with dipstick  
Primer  
Muffler  
Wheel adjuster  
(on each wheel)  
Mulcher plug  
Gasoline filler cap  
Air filter  
Mulcher door  
Spark plug  
Housing  
IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine.  
MEETS CPSC SAFETY REQUIREMENTS  
Sears rotary walk-behind power lawn mowers conform to the safety standards of the  
American National Standards Institute and the U.S. Consumer Product Safety Com-  
mission. The blade turns when the engine is running.  
Operator presence control bar – must  
be held down to the handle to start the  
engine. Release to stop the engine.  
Starter handle – used for starting engine.  
Mulcher plug – located at the rear dis-  
charge opening. Must be removed when  
converting to bagging operation.  
Mulcher door – allows conversion to  
discharging or bagging operation.  
Drive control lever – used to engage  
power-propelled forward motion of mower.  
Primer– pumps additional fuel from the  
carburetor to the cylinder for use when  
starting a cold engine.  
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DRIVE CONTROL ADJUSTMENT  
The operation of any lawn  
mower can result in foreign  
Over time, the drive control system may  
become “loose”, resulting in decreased  
speed. There is a turnbuckle on the drive  
control housing to increase tension on the  
drive cable. Proceed as follows:  
1. Turn unit off and disconnect spark plug  
wire from spark plug.  
2. Rotate turnbuckle on drive control to  
increase drive speed.  
3. Operate mower to test drive speed.  
Readjust as required.  
objects thrown into the eyes,  
which can result in severe  
eye damage. Always wear  
safety glasses or eye shields while oper-  
ating your lawn mower or performing any  
adjustments or repairs. We recommend a  
standardsafetyglassesorwidevisionsafety  
mask worn 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.  
4. If condition fails to improve after the  
above steps (forward speed remains  
the same), your drive belt is worn and  
should be replaced.  
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 under  
any circumstances attempt to defeat the  
function of the operator control. The blade  
turns when the engine is running.  
Adjustment  
turnbuckle  
• Your lawn mower is equipped with an  
operator presence control bar which  
requires the operator to be positioned  
behind the lawn mower handle to start  
and operate the lawn mower.  
TO ADJUST CUTTING HEIGHT  
Raise wheels for low cut and lower wheels  
for high cut, adjust cutting height to suit  
your requirements. Medium position is  
best for most lawns.  
• To change cutting height, squeeze ad-  
juster lever toward wheel. Move wheel  
up or down to suit your requirements.  
Be sure all wheels are in the same set-  
ting.  
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.  
DRIVE CONTROL  
• 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 stopping engine,  
LEVER BACKWARD  
Plate tab  
release the drive control lever only. Hold TO LOWER MOWER  
operator presence control bar down  
against handle to continue 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.  
LEVER FORWARD TO RAISE MOWER Lever  
Operator presence control bar  
Drive control  
lever  
TO ATTACH GRASS CATCHER  
1. Lift the rear door of the lawn mower  
and place the grass catcher frame side  
hooks onto the door pivot pins.  
2. The grass catcher is secured to the  
lawn mower housing when the rear  
door is lowered onto the grass catcher  
frame.  
TO  
ENGAGE  
DRIVE  
DRIVE  
CONTROL  
CONTROL  
DISENGAGED  
8
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CAUTION: Do not run your lawn  
mower without mulcher plate or plug, clip-  
ping deflector or approved grass catcher  
in place. Never attempt to operate the  
lawn mower with the rear door removed or  
propped open.  
Pivot pins  
Rear  
door  
Mulcher plug  
Grass catcher  
handle  
SIDE DISCHARGING  
• Mulcher plug must be installed into rear  
discharge opening of mower.  
• Open mulcher door and install dis-  
charge deflector under door as shown.  
• Mower is now ready for discharging  
operation.  
• To convert to mulching or bagging  
operation, discharge deflector must be  
removed and mulcher door closed.  
Catcher frame hook  
TO EMPTY GRASS CATCHER  
1. Lift up on grass catcher using the  
frame handle.  
2. Remove grass catcher with clippings  
from under lawn mower handle.  
3. Empty clippings from bag.  
NOTE: Do not drag the bag when emp-  
tying; it will cause unnecessary wear.  
Grass  
catcher  
frame  
handle  
Open mulcher door  
Discharge deflector  
TO CONVERT MOWER  
Your lawn mower was shipped ready to be  
used as a mulcher. To convert to bagging  
or discharging:  
REAR BAGGING  
• Open rear door and remove mulcher  
plug. Store mulcher plug in a safe  
place.  
• You can now install the grass catcher or  
optional clipping deflector.  
• To convert to mulching or discharging  
operation, install mulcher plug into rear  
discharge opening of mower.  
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SIMPLE STEPS TO REMEMBER WHEN  
CONVERTING YOUR LAWN MOWER  
CAUTION: Alcohol blended fuels  
(called gasohol or using ethanol or metha-  
nol) can attract moisture which leads to  
separation and formation of acids during  
storage. Acidic gas can damage the fuel  
system of an engine while in storage. To  
avoid engine problems, the fuel system  
should be emptied before storage of 30  
days or longer. Empty the gas tank, start  
the engine and let it run until the fuel lines  
and carburetor are empty. Use fresh fuel  
next season. See Storage Instructions for  
additional information. Never use engine  
or carburetor cleaner products in the fuel  
tank or permanent damage may occur.  
FOR MULCHING -  
1. Rear mulcher plug installed.  
2. Mulcher door closed.  
FOR REAR BAGGING -  
1. Rear mulcher plug removed.  
2. Grass catcher installed.  
3. Mulcher door closed.  
FOR SIDE DISCHARGING -  
1. Rear mulcher plug installed.  
2. Discharge deflector installed.  
CAUTION: Do not run your lawn mow-  
er without mulcher plug, clipping deflector  
or approved grass catcher in place. Never  
attempt to operate the lawn mower with  
the rear door removed or propped open.  
Engine  
oil cap  
BEFORE STARTING ENGINE  
ADD OIL  
Your lawnmower is shipped without oil in  
the engine. For type and grade of oil to  
use, see “ENGINE” in the Maintenance  
section of this manual.  
Gasoline  
filler cap  
CAUTION: DO NOT overfill engine with  
oil, or it will smoke heavily from the muffler  
on startup.  
Primer  
1. Be sure lawnmower is level.  
2. Remove oil dipstick from oil fill spout.  
3. You receive a container of oil with the  
unit. Slowly pour the entire container  
down the oil fill spout into the engine.  
NOTE: Initial oil fill requires only 18 oz.  
due to residual oil in engine from the  
manufacturers 100% quality testing. When  
changing oil you may need 20 oz.  
4. Insert and tighten dipstick.  
TO STOP ENGINE  
• To stop engine, release operator pres-  
ence control bar.  
TO START ENGINE  
NOTE: Due to protective coatings on the  
engine, a small amount of smoke may be  
present during the initial use of the product  
and should be considered normal.  
1. To start a cold engine, push primer  
three (3) times before trying to start.  
Use a firm push. This step is not  
usually necessary when starting an  
engine which has already run for a few  
minutes.  
IMPORTANT:  
• Check oil level before each use. Add oil  
if needed. Fill to full line on dipstick.  
• Change the oil after every 25 hours of  
operation or each season. You may  
need to change the oil more often  
under dusty, dirty conditions. See “TO  
CHANGE ENGINE OIL” in the Mainte-  
nance section of this manual.  
2. Hold operator presence control bar  
down to the handle and pull starter  
handle quickly. Do not allow starter  
rope to snap back.  
ADD GASOLINE  
• Fill fuel tank to bottom of tank filler neck.  
Do not overfill. Use fresh, clean, regular  
unleaded gasoline with a minimum of 87  
octane. Do not mix oil with gasoline. Pur-  
chase fuel in quantities that can be used  
within 30 days to assure fuel freshness.  
CAUTION: Wipe off any spilled oil or  
fuel. Do not store, spill or use gasoline  
near an open flame.  
NOTE: In cooler weather it may be  
necessary to repeat priming steps. In  
warmer weather over priming may cause  
flooding and engine will not start. If you do  
flood engine, wait a few minutes before  
attempting to start and do not repeat  
priming steps.  
10  
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MOWING TIPS  
MULCHING MOWING TIPS  
CAUTION: Do not use de-thatcher  
blade attachments on your mower. Such  
attachments are hazardous, will damage  
your mower and could void your warranty.  
IMPORTANT: For best performance,  
keep mower housing free of built-up  
grass and trash. See “CLEANING” in the  
Maintenance section of this manual.  
• Under certain conditions, such as very  
tall grass, it may be necessary to raise  
the height of cut to reduce pushing effort  
and to keep from overloading the engine  
and leaving clumps of grass clippings.  
It may also be necessary to reduce  
ground speed and/or run the lawn  
mower over the area a second time.  
• For extremely heavy cutting, reduce the  
width of cut by overlapping previously  
cut path and mow slowly.  
• The special mulching blade will recut  
the grass clippings many times and  
reduce them in size so that as they fall  
onto the lawn they will disperse into  
the grass and not be noticed. Also, the  
mulched grass will biodegrade quickly  
to provide nutrients for the lawn. Always  
mulch with your highest engine (blade)  
speed as this will provide the best recut-  
ting action of the blades.  
• Avoid cutting your lawn when it is wet.  
Wet grass tends to form clumps and  
interferes with the mulching action. The  
best time to mow your lawn is the early  
afternoon. At this time the grass has  
dried, yet the newly cut area will not be  
exposed to direct sunlight.  
• For best results, adjust the lawn mower  
cutting height so that the lawn mower  
cuts off only the top one-third of the  
grass blades. If the lawn is overgrown it  
will be necessary to raise the height of  
cut to reduce pushing effort and to keep  
from overloading the engine and leaving  
clumps of mulched grass. For extremely  
heavy grass, reduce your width of cut  
by overlapping previously cut path and  
mow slowly.  
• For better grass bagging and most cut-  
ting conditions, the engine speed should  
be set in the FAST position.  
• Pores in cloth grass catchers can  
become filled with dirt and dust with use  
and catchers will collect less grass. To  
prevent this, regularly hose catcher off  
with water and let dry before using.  
• Keep top of engine around starter clear  
and clean of grass clippings and chaff.  
This will help engine air flow and extend  
engine life.  
MAX 1/3  
• Certain types of grass and grass  
conditions may require that an area be  
mulched a second time to completely  
hide the clippings. When doing a sec-  
ond cut, mow across (perpendicular) to  
the first cut path.  
• Change your cutting pattern from week  
to week. Mow north to south one week  
then change to east to west the next  
week. This will help prevent matting and  
graining of the lawn.  
11  
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MAINTENANCE  
BEFORE AFTER EVERY  
EVERY  
EVERY  
100  
BEFORE  
STORAGE  
EACH  
USE  
EACH  
USE  
10  
25 HOURS  
HOURS OR SEASON HOURS  
Check for Loose Fasteners  
Clean / Inspect Grass Catcher *  
Check Tires  
Check Drive Wheels ***  
Clean Lawn Mower ****  
Clean under Drive Cover ***  
Check Drive Belt / Pulleys ***  
Check / Sharpen / Replace Blade  
Lubrication  
Clean and Recharge Battery **  
Check Engine Oil level  
Change Engine Oil  
Clean Air Filter  
Inspect Muffler  
Replace Spark Plug  
Replace Air Filter Paper Cartridge  
Empty fuel system or add Stabilizer  
(if so equipped)  
1 - Change more often if operating under a heavy load or in high outdoor temperatures.  
2 - Service more often if operating in dirty or dusty conditions.  
3 - Replace blades more often when mowing in sandy soil.  
4 - Charge 48 hours at end of season.  
*
Electric-Start mowers  
Power-Propelled mowers  
Use a scraper  
to clean under deck  
**  
***  
****  
5 - And after each 5 hours of use.  
LUBRICATION CHART  
GENERAL RECOMMENDATIONS  
The warranty on this lawn mower does not  
cover items that have been subjected to  
operator abuse or negligence. To receive  
full value from the warranty, operator must  
maintain unit as instructed in this manual.  
Some adjustments will need to be made  
periodically to properly maintain your unit.  
At least once a season, check to see if  
you should make any of the adjustments  
described in the Service and Adjustments  
section of this manual.  
Wheel  
adjuster (on  
each wheel)  
Engine oil  
Mulcher  
door hinge  
pin  
• At least once a year, replace the spark  
plug, clean or replace air filter element  
and check blade for wear. A new spark  
plug and clean/new air filter element  
assure proper air-fuel mixture and help  
your engine run better and last longer.  
• Follow the maintenance schedule in this  
manual.  
Rear door  
hinge  
Handle bracket mounting pins  
Spray lubricant  
BEFORE EACH USE  
• Check engine oil level.  
• Check for loose fasteners.  
See "ENGINE" in Maintenance section.  
IMPORTANT: Do not oil or grease plastic  
wheel bearings. Viscous lubricants will  
attractdustanddirtthatwillshortenthelifeof  
the self-lubricating bearings. If you feel they  
mustbelubricated,useonlyadry,powdered  
graphite type lubricant sparingly.  
LUBRICATION  
Keep unit well lubricated  
(See “LUBRICATION CHART”).  
12  
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IMPORTANT: Blade bolt is heat treated.  
If bolt needs replacing, replace only with  
approved bolt shown in the Repair Parts  
section of this manual.  
LAWN MOWER  
Always observe safety rules when per-  
forming any maintenance.  
TIRES  
Blade adapter  
Key  
Crankshaft  
keyway  
• Keep tires free of gasoline, oil, or insect  
control chemicals which can harm rubber.  
• Avoid stumps, stones, deep ruts, sharp  
objects and other hazards that may  
cause tire damage.  
Lockwasher  
Blade  
DRIVE WHEELS  
Check rear drive wheels each time before  
you mow to be sure they move freely.  
The wheels not turning freely means trash,  
grasscuttings,etc.areinthedrivewheelarea  
and must be cleaned to free drive wheels.  
If necessary to clean the drive wheels, be  
sure to clean both rear wheels.  
Blade  
bolt  
Hardened  
washer  
Trailing edge  
Crankshaft  
TO SHARPEN BLADE  
NOTE: We do not recommend sharp-  
ening the blade - but if you do, be sure the  
blade is balanced. An unbalanced blade  
will cause eventual damage to mower or  
engine.  
BLADE CARE  
For best results, blade must be kept  
sharp. Replace a bent or damaged blade.  
CAUTION: Use only a replacement  
blade approved by the manufacturer of  
your mower. Using a blade not approved  
by the manufacturer of your mower is haz-  
ardous, could damage your mower and  
void your warranty.  
• The blade can be sharpened with a file  
or on a grinding wheel. Do not attempt  
to sharpen while on the mower.  
• To check blade balance, drive a nail into  
a beam or wall. Leave about one inch of  
the straight nail exposed. Place center  
hole of blade over the head of the nail.  
If blade is balanced, it should remain in  
a horizontal position. If either end of the  
blade moves downward, sharpen the  
heavy end until the blade is balanced.  
TO REMOVE BLADE  
1. Disconnect spark plug wire from spark  
plug and place wire where it cannot  
come in contact with plug.  
2. Turn lawn mower on its side. Make  
sure air filter and carburetor are up.  
3. Use a wood block between blade and  
mower housing to prevent blade from  
turning when removing blade bolt.  
NOTE: Protect your hands with gloves  
and/or wrap blade with heavy cloth.  
4. Remove blade bolt by turning counter-  
clockwise.  
GRASS CATCHER  
• The grass catcher may be hosed with  
water, but must be dry when used.  
• Check your grass catcher often for dam-  
age or deterioration. Through normal  
use it will wear. If catcher needs replac-  
ing, replace only with approved replace-  
ment catcher shown in the Repair Parts  
section of this manual. Give the lawn  
mower model number when ordering.  
5. Remove blade & attaching hardware  
(bolt, lock washer & hardened washer).  
TO REPLACE BLADE  
GEAR CASE  
1. Position blade on the blade adapter  
aligning the two (2) holes in the blade  
with the raised lugs on the adapter.  
2. Be sure the trailing edge of blade (oppo-  
site sharp edge) is up toward engine.  
3. Install the blade bolt with the lock  
washer and hardened washer into  
blade adapter and crankshaft.  
4. Use block of wood between blade and  
lawn mower housing and tighten the  
blade bolt, turning clockwise.  
• The recommended tightening torque is  
35-40 ft. lbs.  
• To keep your drive system working  
properly, the gear case and area around  
the drive should be kept clean and free  
of trash build-up. Clean under the drive  
cover twice a season.  
• The gear case is filled with lubricant to  
the proper level at the factory. The only  
time the lubricant needs attention is if  
service has been performed on the gear  
case.  
• If lubricant is required, use only Texaco  
Starplex Premium 1 Grease, Part No.  
750369. Do not substitute.  
13  
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7. Continue adding small amounts of oil,  
rechecking the dipstick until oil level  
settles at FULL. DO NOT overfill, or  
engine will smoke heavily from the  
muffler on startup.  
8. Always be sure to retighten oil dipstick  
before starting engine.  
ENGINE  
LUBRICATION  
Use only high quality detergent oil rated  
with API service classification SG–SL. Se-  
lect the oil's SAE viscosity grade according  
to your expected operating temperature.  
SAE VISCOSITY GRADES  
9. Reconnect spark plug wire to spark  
plug.  
SAE 30  
5W-30  
-20  
0
30  
32 40  
0
100  
60  
80  
F
AIR FILTER  
C
-20  
10  
-30  
-10  
20  
30  
40  
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE  
Your engine will not run properly and  
may be damaged by using a dirty air  
filter. Replace the air filter cartridge every  
100 hours of operation or every season,  
whichever occurs first. Service air cleaner  
more often under dusty conditions.  
NOTE: Although multi-viscosity oils  
(5W30, 10W30 etc.) improve starting in  
cold weather, these multi-viscosity oils will  
result in increased oil consumption when  
used above 32°F. Check your engine oil  
level more frequently to avoid possible  
engine damage from running low on oil.  
TO CLEAN AIR FILTER  
1. Loosen screw and tilt cover to remove.  
2. Carefully remove cartridge.  
Change the oil after every 25 hours of op-  
eration orat least once a year if the mower  
is not used for 25 hours in one year.  
3. Clean by gently tapping on a flat sur-  
face. If very dirty, replace cartridge.  
CAUTION: Petroleum solvents, such  
as kerosene, are not to be used to clean  
cartridge. They may cause deterioration  
of the cartridge. Do not oil cartridge. Do  
not use pressurized air to clean or dry  
cartridge.  
4. Install cartridge, then replace cover  
making sure the tabs are aligned with  
the slots in the back plate. Fasten  
screw securely.  
Check the crankcase oil level before  
starting the engine and after each five (5)  
hours of continuous use. Tighten oil plug  
securely each time you check the oil level.  
TO CHANGE ENGINE OIL  
NOTE: Before tipping lawn mower to drain  
oil, empty fuel tank by running engine until  
fuel tank is empty.  
1. Disconnect spark plug wire from spark  
plug and place wire where it cannot  
come in contact with plug.  
Lip  
Back plate  
2. Remove engine oil cap; lay aside on a  
clean surface.  
3. Tip lawn mower on its side as shown  
and drain oil into a suitable container.  
Rock lawn mower back and forth to re-  
move any oil trapped inside of engine.  
Cartridge  
Slot  
Cover  
tab  
Cover  
MUFFLER  
Inspect and replace corroded muffler as it  
could create a fire hazard and/or damage.  
Container  
4. Wipe off any spilled oil from lawn  
mower or side of engine.  
SPARK PLUG  
Replace spark plug at the beginning of  
5. Slowly pour oil down the oil fill spout,  
stopping every few ounces to check the each mowing season or after every 100  
oil level with the dipstick.  
hours of operation, whichever occurs  
first. Spark plug type and gap setting  
are shown in the “PRODUCT SPECIFIC-  
14ATIONS” section of this manual.  
6. Stop adding oil when you reach the  
FULL mark on the dipstick. Wait a  
minute to allow oil to settle.  
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• Keep finished surfaces and wheels free  
of all gasoline, oil, etc.  
CLEANING  
IMPORTANT: For best performance,  
keep mower housing free of built-grass  
and trash. Clean the underside of your  
mower after each use.  
CAUTION: Disconnect spark plug wire  
from spark plug and place wire where it  
cannot come in contact with plug.  
• Clean the underside of your lawn mower  
by scraping to remove build-up of grass  
and trash.  
• Clean engine often to keep trash from  
accumulating. A clogged engine runs  
hotter and shortens engine life.  
• We do not recommend using a garden  
hose to clean lawn mower unless the  
electrical system, muffler, air filter and  
carburetor are covered to keep water  
out. Water in engine can result in short-  
ened engine life.  
CLEAN UNDER DRIVE COVER  
Clean under drive cover at least twice a  
season. Scrape underside of cover with  
putty knife or similar tool to remove any  
build-up of trash or grass on underside of  
drive cover.  
SERVICE AND ADJUSTMENTS  
WARNING: Toavoidseriousinjury,before  
8. Turn lawn mower on its side with air  
filter and carburetor down.  
9. Reinstall blade.  
performing any service and adjustments:  
1. Release control bar and stop engine.  
2. Make sure the blade and all moving  
parts have completely stopped.  
3. Disconnect spark plug wire from spark  
plug and place wire where it cannot  
come in contact with plug.  
LAWN MOWER  
TO ADJUST CUTTING HEIGHT  
See “TO ADJUST CUTTING HEIGHT” in  
the Operation section of this manual.  
REAR DEFLECTOR  
Thereardeflector,attachedbetweentherear  
wheelsofyourmower,isprovidedtominimize  
the possibility that objects will be thrown out  
of the rear of the mower into the operator  
mowing position. If the deflector becomes  
damaged, it should be replaced.  
Gearcase pulley  
Drive  
cover  
Spring  
TO REMOVE DRIVE BELT  
1. Remove drive cover.  
Belt  
keeper  
2. Remove spring and belt keeper.  
3. Remove belt from gearcase pulley.  
4. Turn lawn mower on its side with air  
filter and carburetor down.  
Belt  
5. Remove blade, engine pulley and  
debris shield.  
6. Remove engine pulley and belt from  
debris shield.  
TO REPLACE DRIVE BELT  
Engine pulley  
Drive belt  
1. Place new drive belt in engine pulley  
and belt retainer of debris shield.  
2. Route the other end of the new drive  
belt through hole in housing.  
3. Reinstall debris shield.  
4. Return mower to upright position.  
5. Install new belt on gearcase pulley.  
6. Reinstall belt keeper and spring.  
7. Reinstall drive cover.  
Belt  
retainer  
NOTE: Always use factory approved belt  
to assure proper fit and long life.  
Debris shield  
15  
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TO ADJUST HANDLE  
ENGINE  
ENGINE SPEED  
The handle on your lawn mower has three  
(3) height positions - adjust to height that  
suits you.  
• Squeeze the bottom ends of lower  
handle towards each other until the pin  
in handle can be inserted into one of the  
three height adjustment holes.  
Your engine speed has been factory set.  
Do not attempt to increase engine speed  
or it may result in personal injury. If you  
believe that engine is running too fast or  
too slow, take your mower to a Husqvarna  
or other qualified service center for repair  
and adjustment.  
High  
Handle pin  
Medium  
CARBURETOR  
Your carburetor is not adjustable. If your  
engine does not operate properly due  
to suspected carburetor problems, take  
your lawn mower to a Husqvarna or other  
qualified service center for repair and/or  
adjustment.  
SQUEEZE  
Low  
Handle  
bracket  
IMPORTANT: Never tamper with the  
engine governor, which is factory set for  
proper engine speed. Overspeeding  
the engine above the factory high speed  
setting can be dangerous. If you think  
the engine-governed high speed needs  
adjusting, contact a Husqvarna or other  
qualified service center, which has proper  
equipment and experience to make any  
necessary adjustments.  
STORAGE  
Immediately prepare your lawn mower for  
storage at the end of the season or if the  
unit will not be used for 30 days or more.  
handle clear the brackets and pivot  
entire handle assembly forward and  
allow it to rest on mower.  
• When setting up your handle from the  
storage position, you must manually  
lock lower handle into mowing position.  
IMPORTANT: When folding the handle  
for storage or transportation, be sure to  
fold the handle as shown or you may dam-  
age the control cables.  
LAWN MOWER  
When lawn mower is to be stored for a  
period of time, clean it thoroughly, remove  
all dirt, grease, leaves, etc. Store in a  
clean, dry area.  
1. Clean entire lawn mower (See  
“CLEANING” in the Maintenance sec-  
tion of this manual).  
2. Lubricate as shown in the Maintenance  
section of this manual.  
Operator  
presence  
control bar  
MOWING  
POSITION  
3. Be sure that all nuts, bolts, screws, and  
pins are securely fastened. Inspect  
moving parts for damage, breakage  
and wear. Replace if necessary.  
4. Touch up all rusted or chipped paint  
surfaces; sand lightly before painting.  
FOLD  
FORWARD  
FOR  
Upper  
handle  
STORAGE  
HANDLE  
You can fold your lawn mower handle for  
storage.  
Handle  
knob  
1. Loosen the two (2) handle knobs on  
sides of the upper handle and allow  
handle to fold down to the rear.  
2. Squeeze the bottom ends of lower  
handle toward each other until pins in  
Lower handle  
16  
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stabilizer to gasoline in fuel tank or stor-  
age container. Always follow the mix ratio  
found on stabilizer container. Run engine  
at least 10 minutes after adding stabilizer  
to allow the stabilizer to reach the car-  
buretor. Do not empty the gas tank and  
carburetor if using fuel stabilizer.  
Handle pin  
SQUEEZE  
Handle  
bracket  
ENGINE OIL  
Drain oil (with engine warm) and replace  
with clean engine oil. (See “ENGINE” in  
the Maintenance section of this manual).  
CYLINDER  
1. Remove spark plug.  
2. Pour one ounce (29 ml) of oil through  
spark plug hole into cylinder.  
3. Pull starter handle slowly a few times  
to distribute oil.  
ENGINE  
FUEL SYSTEM  
4. Replace with new spark plug.  
IMPORTANT: It is important to prevent  
gum deposits from forming in essential  
fuel system parts such as carburetor, fuel  
filter, fuel hose, or tank during storage.  
Alcohol blended fuels (called gasohol or  
using ethanol or methanol) can attract  
moisture which leads to separation and  
formation of acids during storage. Acidic  
gas can damage the fuel system of an  
engine while in storage.  
OTHER  
• Do not store gasoline from one season  
to another.  
• Replace your gasoline can if your can  
starts to rust. Rust and/or dirt in your  
gasoline will cause problems.  
• If possible, store your unit indoors and  
cover it to protect it from dust and dirt.  
• Cover your unit with a suitable protec-  
tive cover that does not retain moisture.  
Do not use plastic. Plastic cannot  
breathe, which allows condensation to  
form and will cause your unit to rust.  
IMPORTANT: Never cover mower while  
engine and exhaust areas are still warm.  
CAUTION: Never store the lawn  
mower with gasoline in the tank inside a  
building where fumes may reach an open  
flame or spark. Allow the engine to cool  
before storing in any enclosure.  
• Empty the fuel tank by starting the en-  
gine and letting it run until the fuel lines  
and carburetor are empty.  
• Never use engine or carburetor cleaner  
products in the fuel tank or permanent  
damage may occur.  
• Use fresh fuel next season.  
NOTE: Fuel stabilizer is an acceptable  
alternative in minimizing the formation of  
fuel gum deposits during storage. Add  
TROUBLESHOOTING - See appropriate section in manual unless directed  
to a Husqvarna Parts & Repair Center.  
PROBLEM  
CAUSE  
CORRECTION  
Does not start  
1. Dirty air filter.  
2. Out of fuel.  
3. Stale fuel.  
1. Clean/replace air filter.  
2. Fill fuel tank.  
3. Empty fuel tank and refill tank  
with fresh, clean gasoline.  
4. Empty fuel tank and refill tank  
with fresh, clean gasoline.  
4. Water in fuel.  
5. Spark plug wire disconnected. 5. Connect wire to plug.  
6. Bad spark plug.  
7. Loose blade or broken  
blade adapter.  
8. Control bar in released  
position.  
6. Replace spark plug.  
7. Tighten blade bolt or  
replace blade adapter.  
8. Depress control bar to  
handle.  
17  
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TROUBLESHOOTING - See appropriate section in manual unless directed  
to a Husqvarna Parts & Repair Center.  
PROBLEM  
CAUSE  
CORRECTION  
Does not start  
(continued)  
9. Control bar defective.  
10.Fuel valve lever (if so  
equipped) in OFF position.  
11. Weak battery (if equipped).  
12.Disconnected battery  
connector (if equipped).  
9. Replace control bar.  
10.Turn fuel valve lever  
to the ON position.  
11. Charge battery.  
12.Connect battery to engine.  
Loss of power  
1. Rear of mower housing or  
blade dragging in grass.  
2. Cutting too much grass.  
3. Dirty air filter.  
4. Buildup of grass, leaves,  
and trash under mower.  
5. Too much oil in engine.  
6. Walking speed too fast.  
1. Raise cutting height.  
2. Raise cutting height.  
3. Clean/replace air filter.  
4. Clean underside of mower  
housing.  
5. Check oil level.  
6. Cut at slower walking speed.  
Poor cut –  
uneven  
1. Worn, bent or loose blade.  
2. Wheel heights uneven.  
1. Replace blade. Tighten  
blade bolt.  
2. Set all wheels at same  
height.  
3. Buildup of grass, leaves  
and trash under mower.  
3. Clean underside of  
mower housing.  
Excessive  
vibration  
1. Worn, bent or loose blade.  
2. Bent engine crankshaft.  
1. Replace blade. Tighten  
blade bolt.  
2. Contact a Husqvarna or other  
qualified service center.  
Starter rope  
hard to pull  
1. Engine flywheel brake is on 1. Depress control bar to  
when control bar is released.  
upper handle before  
pulling the starter rope.  
2. Bent engine crankshaft.  
2. Contact a Husqvarna or other  
qualified service center.  
3. Blade adapter broken.  
4. Blade dragging in grass.  
3. Replace blade adapter.  
4. Move lawn mower to cut  
grass or to hard surface.  
Grass catcher  
not filling  
(If so equipped)  
1. Cutting height too low.  
2. Lift on blade worn off.  
3. Catcher not venting air.  
1. Raise cutting height.  
2. Replace blade.  
3. Clean grass catcher.  
Hard to push  
1. Grass is too high or wheel  
height is too low.  
1. Raise cutting height.  
2. Rear of mower housing or  
blade dragging in grass.  
3. Grass catcher too full.  
4. Handle height position not  
right for you.  
2. Raise rear of mower housing  
one (1) setting higher.  
3. Empty grass catcher.  
4. Adjust handle height to suit.  
Loss of drive  
or slowing of  
drive speed  
1. Belt wear.  
1. Check/replace drive belt.  
2. Check/reinstall drive belt.  
2. Belt off of pulley.  
3. Drive cable worn or broken. 3. Replace drive cable.  
4. “Loose” drive control system. 4. Adjust drive control.  
18  
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ROTARY LAWN MOWER - - MODEL NUMBER 6521RS (96145000501) (PRODUCT NUMBER 961 45 00-05)  
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ROTARY LAWN MOWER - - MODEL NUMBER 6521RS (96145000501) (PRODUCT NUMBER 961 45 00-05)  
KEY PART  
KEY PART  
NO. NO.  
NO.  
NO.  
DESCRIPTION  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
532 19 99-82 Handle, Upper (Includes Foam Grip)  
532 19 72-02 Handle, Lower  
532 40 54-16 Spring, Rear Door, RH  
532 19 47-88 Guide, Rope, Side  
532 13 20-04 Nut, Hex Lockwasher Insert 1/4-20  
532 06 64-26 Wire, Tie  
532 19 15-74 Bolt, Handle 5/16-18 x 1.75  
532 18 55-88 Knob, Handle  
27 532 19 28-76 Skirt, Rear  
28 532 08 86-52 Screw, Hinge 1/4-20 x 1.25  
29 532 19 12-21 Cable, Operator Presence  
30 532 18 91-79 Blade Adapter / Pulley  
31 532 40 67-12 Blade, 21"  
32 532 85 10-74 Washer, Hardened  
33 532 85 02-63 Lockwasher, Helical Spring 3/8  
34 532 85 10-84 Screw, Hex Head 3/8-24 x 1.38  
35 532 40 58-43 Debris Shield  
532 19 70-19 Bail, Flat, Auto-Walk, Orange  
10 532 18 88-21 Bolt, Carriage  
36 532 19 23-25 Screw  
11 532 75 11-53 Nut, Hex, Centerlock 5/16-18 UNC  
12 532 05 17-93 Cotter, Hairpin  
13 532 40 54-15 Spring, Rear Door, LH  
14 532 75 06-34 Screw  
37 532 15 04-06 Bolt, Engine  
38  
- - -  
Engine, Briggs & Stratton, Model Number 124T02  
(For engine service and replacement parts,  
call Briggs & Stratton at 1-800-233-3723)  
15 532 12 51-62 Bracket, Upstop  
39 532 40 97-26 Grassbag  
16 532 40 88-88 Rear Door Assembly  
17 532 18 41-93 Bolt, Rear Door  
40 532 40 74-53 Frame, Grassbag  
41 532 40 47-63 Danger Decal  
18 532 19 81-70 Plug, Mulcher  
42 532 05 45-83 Screw  
19 532 41 40-19 Kit, Housing  
45 532 19 05-10 Mulcher Door Assembly  
46 532 19 05-12 Deflector, Discharge  
47 532 08 83-49 Nut, Hex  
48 532 19 09-39 Mounting Bracket, Debris Shield  
59 532 18 27-48 Grip, Handle, Foam, Smooth  
96 532 19 79-91 Clip, Cable  
20 532 40 32-96 Handle Bracket Assembly, LH  
21 532 40 32-97 Handle Bracket Assembly, RH  
22 532 15 00-78 Screw, Hex Washer Head  
23 532 16 31-83 Bolt, Hex Head 5/16-18 x 5/8  
24 873 80 05-00 Nut, Hex, with Lock Washer Insert 5/16-18  
25 532 16 13-33 Baffle, Side  
- - 532 40 47-64 Warning Decal (not shown)  
- - 532 41 44-89 Owner’s Manual, English / Spanish  
26 532 16 34-09 Screw, Hi-Lo Thread #12 x 5/8  
NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm.  
IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your lawn mower and void your warranty.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
ROTARY LAWN MOWER - - MODEL NUMBER 6521RS (96145000501) (PRODUCT NUMBER 961 45 00-05)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
ROTARY LAWN MOWER - - MODEL NUMBER 6521RS (96145000501) (PRODUCT NUMBER 961 45 00-05)  
KEY PART  
KEY PART  
NO. NO.  
NO.  
NO.  
DESCRIPTION  
DESCRIPTION  
1
2
3
4
5
6
7
9
532 40 73-44 Drive Control Assembly (Includes Cable)  
532 41 35-42 Cover, Top, Drive Control  
532 40 62-62 Pulley  
32 532 41 31-43 Wheel & Tire Assembly, Rear  
33 532 40 91-48 Nut, Hex, Flangelock 3/8-16  
39 532 40 16-30 Washer, Curved, Cylindrical  
40 532 19 80-11 Wheel & Tire Assembly, Front 8 x 2  
41 532 40 48-35 Gear, Pinion  
42 532 19 74-80 O-Ring  
44 532 40 65-80 V-Belt  
47 532 06 77-25 Washer 1/2 x 1-1/2 x .134  
49 532 16 34-09 Screw, Hi-Lo Thread #12 x 5/8  
50 532 41 31-04 Belt Keeper  
532 19 00-39 Lever, Drive Control  
532 41 35-41 Cover, Bottom, Drive Control  
532 18 16-98 Screw, Phillips Head #10 x 5/8  
532 40 07-23 Mounting Bracket, Drive Control  
532 40 62-58 Cable, Drive Control  
10 532 18 93-78 Decal, Drive Control  
11 532 40 65-58 Spring  
13 532 40 48-44 Gear Case Assembly, Complete  
14 532 19 34-43 Pulley, Drive  
51 532 08 83-48 Washer, Flat 1/2  
60 532 41 27-47 Case, Lower  
15 532 40 90-73 Kit, Wheel Adjuster Assembly, RH  
(Includes Knob and Bearing)  
16 532 40 90-74 Kit, Wheel Adjuster Assembly, LH  
(Includes Knob and Bearing)  
61 532 41 27-36 Case, Upper  
62 532 41 27-45 Shaft, Output, Long  
63 532 18 35-08 Seal, Output Shaft  
64 532 18 35-11 Bushing  
17 532 16 67-85 Nut, Hex  
65 532 18 35-09 Washer  
18 532 40 64-28 Spring Selector  
19 532 19 64-01 Knob, Selector Spring  
20 532 41 05-94 Bracket, Wheel Adjusting  
21 532 40 16-38 Bolt, Shoulder, Hex Head  
22 532 19 10-39 Bearing, Ball  
23 532 40 66-90 Axle Arm Assembly, RH  
24 532 40 66-89 Axle Arm Assembly, LH  
25 532 40 07-83 Cover Drive  
66 532 18 35-14 Seal, Worm Shaft  
67 532 18 35-06 Bearing, Ball  
68 532 41 27-42 Gear, 28 Teeth  
69 532 41 27-39 Fixed Dog Clutch, LH  
70 532 41 27-41 Pin, Output Shaft  
71 532 41 27-40 Movable Dog Clutch, LH  
72 532 41 27-38 Shaft, Output, Short  
73 532 18 35-13 Screw, Case  
26 532 75 06-34 Screw, Threaded, Rolled #10-25 x 1/2  
27 532 40 16-29 Spacer  
28 812 00 00-58 E-Ring 7/16  
29 532 18 94-03 Cover, Dust, Wheel  
30 873 80 04-00 Nut, Hex  
75 532 41 27-46 Pin, Worm Shaft  
76 532 41 27-44 Fixed Dog Clutch, RH  
77 532 41 27-43 Movable Dog Clutch, RH  
78 532 41 07-31 Spring, Leaf  
79 532 41 27-37 Shaft, Worm  
31 532 40 48-45 Pawl  
NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm.  
IMPORTANT: Use only Original Equipment Manufacturer (O.E.M.) replacement parts. Failure to do so could be hazardous, damage your lawn mower and void your warranty.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
532 41 44-89 Rev. 1 05.01.07 BY  
Printed in U.S.A.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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