Husqvarna 55B21HV User Manual

55B21HV

Owner’s Manual

532 18 63-04 Rev. 4 03.17.04 BY

Printed in U.S.A.

SAFETY RULES

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.

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.

• 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 artiﬁ cial light.

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

• Never operate machine in wet grass. Always be sure of your footing: keep a ﬁ rm 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. 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.

Never

assume that

IV. SERVICE

• Use extra care in handling gasoline and other fuels. They are ﬂ ammable 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 ﬂ ame, such as a water heater.

• Never run a machine inside a closed area.

• Never make adjustments or repairs with the engine (motor) running. Disconnect the spark plug wire, and keep the wire away from the 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, dam age, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check com po nents and replace with manufacturer’s rec om mend ed parts, when necessary.

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

• Do not change the engine governor setting or overspeed

the engine.

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: 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.

WARNING: Engine exhaust, some of its con stit u ents, and certain vehicle com po nents contain or emit chem icals known to the State of Cal i for nia to cause can cer and birth defects or oth er re pro duc tive harm.

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.

CAUTION: Mufﬂ er 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.

CONGRATULATIONS on your purchase of a new lawn

mower. It has been designed, engineered and man u fac tured 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 tech ni cians 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 ATTACHED 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 1.0 Quarts and Type: (Unleaded Regular Only)

Oil Type (API-SF-SJ): SAE 10W-30

Oil Capacity: 18.5 Ounces

Spark Plug: NGK BPR6ES (Gap: .030")

Valve Clearance: Intake: 0.015 mm (± 0.04 mm) Exhaust: 0.020 mm

Blade Bolt Torque: 36-44 ft. lbs. (49-60 N-m)

CUSTOMER RESPONSIBILITIES

• Read and observe the safety rules.

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

• Follow the instructions under “Maintenance” and “Stor age” sec tions of this own er’s manual.

TABLE OF CONTENTS

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

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

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

ASSEMBLY................................................................. 4-5

OPERATION ............................................................. 6-11

MAINTENANCE SCHEDULE ...................................... 12

MAINTENANCE...................................................... 12-14

SERVICE AND AD JUST MENTS ............................14-16

STORAGE ............................................................... 16-17

TROU BLE SHOOT ING ................................................. 18

REPAIR PARTS....................................................... 19-23

WARRANTY................................................................. 24

ASSEMBLY

Read these instructions and this man u al 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 sem bled at the factory with the ex cep tion of those parts left unassembled for shipping purposes. All parts such as nuts, washers, bolts, etc., necessary to com plete the as sem bly 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 se cure ly. Use the correct tools as nec es sary 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 ﬂ at.

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 di tion al loose parts.

OPERATOR PRESENCE CONTROL BAR

UPPER HANDLE

LOWER HANDLE

LIFT UP

MOWING

PO SI TION

FIG. 1

HOW TO SET UP YOUR LAWN MOW ER

TO UNFOLD HANDLE (See Figs. 1 and 2)

IMPORTANT: UNFOLD HANDLE CAREFULLY SO AS

NOT TO PINCH OR DAMAGE CON TROL CABLES.

1. Raise lower handle to operating position and align hole in handle with one of the height positioning holes in the handle bracket.

2. Insert handle bolt through handle and bracket and secure with knob.

3. Repeat for opposite side of handle.

4. Remove protective padding, raise upper handle section into place on lower handle and tighten both handle knobs.

5. Remove packing material from around control bar.

Your handles may be adjusted for your mowing comfort. Refer to “ADJUST HANDLE” in the Service and Ad just ments sec tion of this man u al.

BOLT

KNOB

HANDLE BRACKET

FIG. 2

ASSEMBLY

TO ASSEMBLE GRASS CATCHER (See Figs. 3 and 4)

1. Slide grass catcher bag over the frame. Make sure the rear handle is on top (the same side as the front handle) and the strap is on the bottom.

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.

3. Close grass catcher door.

NOTE: When fully closed, door will “snap” shut over frame and vinyl bindings.

REAR HANDLE

STRAP

DOOR

GRASS CATCHER FRAME

VINYL BINDINGS

BAG

FIG. 4

FIG. 3

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 u al.

FRONT

HANDLE

DOOR

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.

DRIVE CONTROL LEVER

THROTTLE / ENGINE CONTROL

HANDLE KNOB

GRASS CATCHER

EN GINE OIL CAP WITH DIPSTICK

OPERATOR PRESENCE CON TROL BAR

BLADE / BRAKE CONTROL

STARTER HANDLE

DRIVE COVER

GAS O LINE FILL ER CAP

FUEL VALVE LEVER

AIR FILTER

DUAL POINT HEIGHT ADJUSTER LEVER

MULCHER DOOR

IMPORTANT: This lawn mower is shipped

MUFFLER

HOUSING

WITHOUT OIL OR GASOLINE in the engine.

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.

OPERATOR PRESENCE CONTROL BAR - must be held down to the handle to start the blade. Release to stop the blade.

THROTTLE / ENGINE CONTROL – used for starting and stopping the engine; and allows you to select either FAST or SLOW engine speed.

MULCHER DOOR - allows conversion to discharge or bagging operation.

BLADE / BRAKE CONTROL – used to engage the blade after the engine is started.

STARTER HANDLE - used for starting the engine.

DRIVE CONTROL LEVER - used to engage power-pro-

pelled forward motion lawn mower.

DUAL POINT HEIGHT ADJUSTER – used to adjust cutting height of lawn mower.

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

THROTTLE / ENGINE CONTROL (See Fig. 5)

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 position is for light cutting, trimming and fuel economy, and STOP position is for stopping the engine.

FAST

CHOKE

SLOW

STOP

OPERATOR PRESENCE

CONTROL BAR

TO ENGAGE BLADE

BLADE / BRAKE

CONTROL LEVER

BLADE DISENGAGED

FIG. 6

DRIVE CONTROL (See Fig. 7)

• 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 blade, re lease the drive control lever only. Hold op er a tor presence control bar down against handle to con tin ue 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.

FIG. 5

BLADE CONTROL (See Fig. 6)

CAUTION: When the blade control is engaged, the blade turns. When the blade control is disengaged, the blade stops.

• Your lawn mower has a blade/brake clutch fastened to the engine crank shaft, which starts or stops the blade. To start the blade, hold the operator presence control bar down to the handle and push the blade/brake control lever forward until it latches. To stop the blade, release the operator presence control bar.

Do not start the blade in deep, uncut grass. Move lawn mower out of uncut grass before starting blade.

CAUTION: Federal regulations require this blade/brake control to minimize the risk of blade contact injury. Do not under any circumstances attempt to defeat the function of this control.

OPERATOR PRESENCE CONTROL BAR

DRIVE CONTROL LEVER

ADJUSTMENT BUTTON (ON UNDERSIDE)

TO ENGAGE DRIVE CONTROL

DISENGAGED

DRIVE

CONTROL

FIG. 7

DRIVE CONTROL ADJUSTMENT (See Fig. 7)

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

1. Turn unit off and disconnect spark plug wire from spark plug.

2. Pull out button on underside of drive control, then push it back in.

3. Operate mower to test drive speed. If there is no increase, your drive belt is worn and should be re placed.

OPERATION

TO ADJUST CUTTING HEIGHT (See Fig. 8)

Both front wheels are adjusted by a single lever on the left front wheel. Likewise, both rear wheels are adjusted by a single lever on the left rear wheel.

• Pull adjuster lever toward wheel. To raise mower, move lever forward to desired position. To lower mow er, move the lever toward the rear.

Be sure to adjust both front and rear wheels to the same height.

HEIGHT ADJUSTER LEVER

LEVER BACKWARD TO LOWER MOWER

LEVER FORWARD

TO RAISE MOWER

• Lift the round door of the discharge chute and place the grass catcher into place on the discharge chute.

NOTE: Be sure round door of discharge chute rests on grass catcher as shown.

• Mower is now ready for rear bagging operation.

• To convert to mulching operation, remove grass catch er and discharge chute. Secure mulcher door to mower housing with knob.

• To convert to side dis charg ing operation, remove grass catch er and discharge chute. Install side discharge deﬂ ector and secure it to lawn mower housing with knob.

REAR HANDLE

CROSSBAR

GRASS

CATCHER

FIG. 8

TO CONVERT MOWER (See Figs. 9 thru 11)

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

REAR BAGGING

• Remove knob securing mulcher door to lawn mower housing.

• Open mulcher door and insert tabs of discharge chute into hinge bracket opening and position rear of chute over threaded stud.

DISCHARGE CHUTE TABS

HINGE BRACKET MULCHER DOOR

FIG. 9

• Secure rear of discharge chute to lawn mower housing with knob.

• Place rear handle of grass catcher on the crossbar of the lawn mower's lower handle as shown.

ROUND DOOR

KNOB DISCHARGE CHUTE

THREADED

STUD

MULCHER DOOR

FIG. 10

SIDE DISCHARGING

• Grass catcher and discharge chute must be removed.

• Open mulcher door and install front of side dis charge deﬂ ector beneath it as shown.

• Secure rear of side discharge deﬂ ector to lawn mower housing with knob.

• Mower is now ready for side discharging operation.

• To convert to mulching operation, side dis charge deﬂ ector must be removed and mulcher door secured to mower housing with knob.

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