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WARNING: Battery posts, terminals and 

related ac ces so ries contain lead and lead 

compounds, chemicals known to the State 

of Cal i for nia to cause can cer and birth 

defects or oth er re pro duc tive harm. Wash 

hands after handling.

WARNING: Engine exhaust, some of its con-

 stit u ents, and certain vehicle com po nents 

contain or emit chem i cals known to the 

State of Cal i for nia to cause can cer and birth 

defects or oth er re pro duc tive harm.

CAUTION:  Always disconnect spark plug 

wire and place wire where it cannot contact 

spark plug in order to prevent ac ci den tal 

starting when setting up, trans port ing, 

adjusting or making re pairs.

Look for this symbol to point out im-

 por tant safety precautions.  It means

CAUTION!!!  BE COME ALERT!!!  YOUR 

SAFE TY IS IN VOLVED.

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.

Safe Operation Practices for Walk-Behind Mowers

IMPORTANT: 

 THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROW ING OBJECTS.  FAILURE 

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

SAFETY RULES

I. GENERAL OPERATION

•  Read, understand, and follow all instructions on the 

machine and in the manual(s) before starting. Be 

thor ough ly 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 mow-

 ing.  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 nec-

 es sary.  Always look down and behind before and 

while moving backwards.

•  Never direct discharged material toward anyone.     

Avoid discharging material against a wall or obstruc-

tion.  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 equip-

 ment, 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.

•  D i s e n g a g e   t h e   s e l f - p r o p e l l e d   m e c h a -

n i s m   o r   d r i v e   c l u t c h   o n   m o w e r s   s o 

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.  Exer-

cise 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 spon si ble 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 ex-

tremely flammable and the vapors are explosive.
•  Extinguish all cigarettes, cigars, pipes and other 

sources of ignition.

•  Use only an approved container.

Summary of Contents for 5521BBC

Page 1: ...7021RB Owner s Manual 96143005000 2008 12 532 42 57 44 12 22 08 BY Printed in U S A ...

Page 2: ...typrotectivedevices 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 Stoptheengine motor wheneveryouleavetheequip ment before cleaning the mower or unclogging the chute Shut the engine motor off and wait until the blade comes to complete stop be...

Page 3: ...RNING This lawn mower is equipped with an internal combustion engine and should not be used on or near any unimproved forest covered brush covered or grass covered 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 In the state of Calif...

Page 4: ...ing or discharging see TO CONVERT MOWER in the Operation section of this manual FIG 2 FIG 1 OPERATOR PRESENCE CONTROL BAR HANDLE KNOB LIFT UP LIFT UP LOWER HANDLE MOWING POSITION UPPER HANDLE FIG 3 FRAME HANDLE VINYL BINDINGS FRAME OPENING TO REMOVE LAWN MOWER FROM CARTON 1 Remove loose parts included with mower 2 Cut down two end corners of carton and lay end panel down flat 3 Removeallpackingmat...

Page 5: ...is started SINGLE POINT HEIGHT ADJUSTER used to adjust cutting height of lawn mower HOUSING GRASS CATCHER THROTTLE ENGINE CONTROL used for starting and stopping the engine and allows you to select either FAST or SLOW engine speed STARTER HANDLE used for starting the engine MULCHER DOOR allows conversion to discharge or bagging operation MULCHERPLUG locatedatthedischargeopening must be removed when...

Page 6: ...risk of blade contact injury Do not under any circumstances attempt to defeat the function of this control HOW TO USE YOUR LAWN MOWER THROTTLE ENGINE CONTROL See Fig 4 The engine is controlled by a throttle control located on the side of the upper handle CHOKE position is for starting a cold engine FAST position is for starting a warm engine normal cutting trimming and better grass bagging SLOW po...

Page 7: ...te turnbuckle on drive control to increase drive speed 3 Operate mower to test drive speed Readjust as re quired 4 If condition fails to improve after the above steps forward speed remains the same your drive belt is worn and should be replaced TO ENGAGE DRIVE CONTROL DRIVE CONTROL LEVER DRIVE CONTROL DISENGAGED OPERATOR PRESENCE CONTROL BAR FIG 6 FIG 7 ADJUSTMENT TURNBUCKLE OPERATION TO ATTACH GR...

Page 8: ...ar door and remove mulcher plug Store mulcher plug in a safe place You can now install the grass catcher Toconverttomulchingordischargingoperation install mulcher plug into rear discharge opening of mower FIG 11 MULCHER PLUG FIG 10 FRAME HANDLE FIG 12 OPEN MULCHER DOOR DISCHARGE DEFLECTOR SIDE DISCHARGING See Fig 12 Mulcher plug must be installed into rear discharge opening of mower Open mulcher d...

Page 9: ... 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 Maintenance section of this manual OPERATION FIG 13 GASOLINE FILLER CAP LOWER MARK UPPER MARK OIL FILL CAP DIPSTICK ADD GASOLINE See Fig 13 Fill fuel tank to bottom of tank filler neck Do not over fill Use fresh cle...

Page 10: ...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 MULCHING MOWING TIPS IMPORTANT FOR BEST PERFORMANCE KEEP MOWER HOUSING FREE OF BUILT UP GRASS AND TRASH SEE CLEANING IN MAINTENA...

Page 11: ...IMPORTANT DO NOT OIL OR GREASE PLASTIC WHEEL BEARINGS VISCOUS LUBRICANTS WILL ATTRACT DUST AND DIRT THAT WILL SHORTEN THE LIFE OF THE SELF LUBRICATING BEARINGS IF YOU FEEL THEY MUST BE LUBRICATED USE ONLY A DRY POWDERED GRAPHITE TYPE LUBRICANT SPARINGLY SPRAY LUBRICANT SEE ENGINE IN MAINTENANCE SECTION Check for Loose Fasteners Clean Inspect Grass Catcher Check Tires Check Drive Wheels Clean Lawn ...

Page 12: ...keep the blade balanced An unbalanced blade will cause eventual damage to lawn mower or engine The blade can be sharpened with a file or on a grind ing 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 ...

Page 13: ...E 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 Keep finished surfaces and wheels free of gasoline oil et...

Page 14: ...air and adjustment CARBURETOR Your carburetor is not adjustable If your engine does not operate properly due to suspected carburetor problems take your lawn mower to an authorized service center for repair and or adjustment IMPORTANT NEVERTAMPERWITHTHEENGINEGOVERNOR WHICH IS FACTORY SET FOR PROPER ENGINE SPEED OVERSPEEDING THE ENGINE ABOVE THE FACTORY HIGH SPEED SETTING CAN BE DANGEROUS IF YOU THI...

Page 15: ...k and carburetor if using fuel stabilizer ENGINE OIL Drain oil with engine warm and replace with clean en gine 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 4 Replace with new spark plug OTHER Do not store gasoline from one season to...

Page 16: ...rash under mower 3 Clean underside of mower housing Excessive 1 Worn bent or loose blade 1 Replace blade Tighten blade bolt vibration 2 Bent engine crankshaft 2 Contact a qualified service center Starter rope 1 Engine flywheel brake is on 1 Depress control bar to upper handle hard to pull when control bar is released before pulling starter rope 2 Bent engine crankshaft 2 Contact a qualified servic...

Page 17: ...17 SERVICE NOTES ...

Page 18: ...18 ROTARY LAWN MOWER MODEL NUMBER 7021RB 96143005000 PRODUCT NUMBER 961 43 00 50 ...

Page 19: ... 20 03 Clip 59 532 18 27 48 Grip Handle Foam Smooth one side 60 532 19 08 78 Throttle Engine Control 61 532 18 33 65 Screw Hex Head 1 4 20 x 2 1 8 62 532 18 21 31 Belt Guide Stud 64 532 19 70 33 Nut Hex 3 8 16 66 532 18 99 37 Screw Hex Washer Head 1 4 20 x 1 2 67 532 19 65 41 Blade Brake Clutch Control 68 532 18 04 60 Bolt Hex Head 69 Blade Brake Clutch Includes Key Numbers 82 95 70 532 19 09 30 B...

Page 20: ...20 ROTARY LAWN MOWER MODEL NUMBER 7021RB 96143005000 PRODUCT NUMBER 961 43 00 50 ...

Page 21: ... 532 40 07 83 Cover Drive 26 532 75 06 34 Screw Threaded Rolled 10 25 x 50 28 812 00 00 58 E Ring 7 16 29 532 18 94 03 Cover Dust Wheel 31 532 40 48 45 Pawl 32 532 41 31 05 Wheel Driven Rear 8 x 1 3 4 33 532 40 91 48 Nut Hex Flangelock 3 8 16 34 532 85 12 26 Washer Flat 35 532 41 09 22 Shaft Assembly Rear 36 532 41 09 33 Shaft Assembly Front 37 532 16 14 63 Retainer Front Shaft 38 532 16 34 09 Scr...

Page 22: ...ies Zero Turn Riders 2 Years 1 Year 90 Days iZ LZ BZ Series Zero Turn Riders Applies to units factory equipped with Roll Over Protection System 90 Days Commercial Walk Mowers includes 21 wide area 90 Days Commercial Turf Specialty Equipment 1 Years 1 Years 1 Year Zero Turn Commercial Turf Specialty Attachments 2 Years 1 Year 90 Days Power Cutters Lifetime Ignition Warranty Parts Only 1 Year 90 Day...

Page 23: ...XCEPTIONS 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 accordance with the Owner s Operator s manual or instruction sheet furnished by Hus...

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