Husqvarna RZ4221TF, 967036502 Operator's Manual
Gasoline containing up to 10% ethanol (E10) is
acceptable for use in this machine. The use of any
gasoline exceeding 10% ethanol (E10) will void
the product warranty.
Operator Manual
RZ4221TF / 967036502
Please read the operator manual carefully and make sure you
understand the instructions before using the machine.
CONFORMITY CERTIFICATES
USA requirements
Labels are placed on the engine and/or in the
engine compartment stating that the machine will
fulfill the requirements. This is also applicable to
special requirements for any of the states, (California
emission rules etc.). Do not remove any of these
labels. Certificates can also be supplied with the
machine at delivery or written in the Engine manual.
Take care of them as they are valuable documents.
WARNING! Failure to follow cautious operating
practices can result in serious injury to the operator
or other persons. The owner must understand these
instructions, and must allow only trained persons who
understand these instructions to operate the mower.
Each person operating the mower must be of sound
mind and body and must not be under the influence of
any mind altering substance.
WARNING! Engine exhaust, some of its
constituents, and certain vehicle components 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.
When this product is worn out and no longer used, it
should be returned to the reseller or other party for
recycling.
To implement improvements, specifications and designs
can be altered without prior notification.
Note that no legal demands can be placed based on the
information contained in these instructions.
Use only original parts for repairs. The use of other parts
voids the warranty.
Do not modify or install non-standard equipment to the
unit without consent from the manufacturer. Modifications
to the unit may cause unsafe operations or damage the
unit.
©2014 All rights reserved.
Orangeburg, SC Printed in U.S.A.
CONTENTS
INTRODUCTION ............................................................... 4
Driving and Transport on Public Roads ...................... 4
Towing .........................................................................4
Operating ....................................................................4
Good Service .............................................................. 5
Manufacturing Number ......................................... 5
SYMBOLS AND DECALS .................................................. 6
Safety Instructions ...................................................... 7
Personal Safety Equipment ........................................7
SAFETY ............................................................................. 7
Slope Operation ..........................................................8
Safe Handling of Gasoline .......................................... 8
General Maintenance ................................................. 9
Transport ................................................................... 10
Towing .......................................................................10
Spark Arrestor ...........................................................10
Control Locations ......................................................11
CONTROLS ..................................................................... 11
Steering Control Levers ............................................ 12
Park Brake ................................................................ 12
Ignition Switch ..........................................................12
Throttle Control ......................................................... 13
Blade Switch ............................................................. 13
Service Minder ..........................................................13
Fuse .......................................................................... 14
Seat Adjustment Lever .............................................14
Fuel Shut Off Valve ................................................... 14
Cutting Height Lever .................................................14
Bypass Linkages ...................................................... 14
Fuel Tank ...................................................................15
OPERATION ....................................................................16
Training .....................................................................16
Steering ....................................................................16
Before Starting .......................................................... 16
Starting the Engine ................................................... 17
Running ....................................................................18
Stopping the Engine ................................................. 19
Operating On Hills .................................................... 19
Mowing Tips .............................................................20
Jumper Cable Use .............................................. 20
Moving Machine By Hand ........................................ 21
Maintenance Schedule ............................................. 22
MAINTENANCE ...............................................................22
Battery ......................................................................24
Safety System ........................................................... 25
Park Brake ................................................................ 25
Tire Pressures ........................................................... 25
Caster Wheels ..........................................................26
Anti-scalp Rollers ......................................................26
Adjusting the Mower Deck .......................................27
Leveling deck .....................................................27
Cutting Blades .......................................................... 28
Blade replacement .............................................28
Cleaning ...................................................................28
Hardware .................................................................. 28
LUBRICATION ................................................................. 29
Transmission ............................................................. 29
Wheel and Deck Zerks ............................................. 29
Front Wheel Mount .............................................. 29
Front Wheel Bearings .........................................29
Deck Spindles .....................................................29
TROUBLESHOOTING ..................................................... 30
STORAGE .......................................................................31
Winter Storage .......................................................... 31
Service ...................................................................... 31
SCHEMATIC .................................................................... 32
TECHNICAL DATA ..........................................................33
Torque Specifications ...............................................34
Accessories .............................................................. 34
SERVICE JOURNAL ........................................................ 35
INTRODUCTION
Congratulations
Thank you for purchasing a Husqvarna ride-on mower. This
machine is built for superior efficiency to rapidly mow primarily
large areas. A control panel easily accessible to the operator
and a hydrostatic transmission regulated by steering controls
both contribute to the machine’s performance.
This manual is a valuable document. Read the contents
carefully before using or servicing the machine. The following
of instructions (use, service, maintenance) by all who operate
this machine is important for the safety of the operator and
others. It can also considerably increase the life span of the
machine and increase its resale value.
If you sell your machine, be sure to give the operator manual to
the new owner.
The final chapter of this operator manual provides a Service
Journal. Ensure that service and repair work are documented.
A well-kept service journal reduces service costs for the
maintenance and affects the machine’s resale value. Please
contact your dealer for more information. Take the operator
manual along when the machine is taken to your dealer for
service.
General
In this operator manual, left and right, backward and forward
are used in relation to the machine’s normal driving direction.
Continuous dedication to improve our products require that
specifications and design are subject to change without
notice.
Operating
This machine is constructed only for mowing grass on lawns
and even ground without obstacles such as stones, tree
stumps, etc. The machine can also be used for other tasks
when equipped with special accessories provided by the
manufacturer. Operating instructions for the accessories are
provided with delivery. All other types of uses are incorrect.
The manufacturer’s directions concerning operation,
maintenance, and repairs must be carefully followed.
Lawn mowers and all power equipment, can be potentially
dangerous if used improperly. Safety requires good
judgement, careful use in accordance with these instructions
and common sense.
The machine must only be operated, maintained, and repaired
by persons familiar with the machine’s special characteristics
and who are also knowledgeable about the safety instructions.
Use only approved repair parts to maintain this machine.
Accident prevention regulations, other general safety
regulations, occupational safety rules, and traffic regulations
must be followed without fail.
Unauthorized modifications to the design of the machine
may absolve the manufacturer from liability for any resulting
personal injury or property damage.
Driving and Transport on Public Roads
Check applicable road traffic regulations before transporting
on public roads. If the machine is transported, you must
always use approved fastening equipment and ensure that the
machine is well anchored. DO NOT operate this machine on
public roadways.
Towing
If machine is equipped with a tow hitch, use extreme caution
when towing. Never allow children or others in or on the towed
equipment. Make wide turns to avoid jack-knifing. Travel slowly
and allow extra distance to stop.
Do not tow on sloped ground. The weight of the towed
equipment may cause loss of traction and loss of control.
Follow the manufacturer's recommendation for weight limits for
towed equipment. Do not tow near ditches, canals, and other
hazards.
4
INTRODUCTION
Good Service
Husqvarna's products are sold only in specialized retail stores
with complete service. This ensures that you as a customer
receive only the best support and service. Before the product
is delivered, the machine has, for example, been inspected
and adjusted by your retailer. See the certificate in the Service
Journal in this operator manual.
When you need spare parts or support in service questions,
warranty issues, etc., please consult the following professional:
This Manual belongs to the machine with
the manufacturing number:
Manufacturing Number
The machine’s manufacturing number can be found on the
printed plate affixed to the engine compartment.
Stated on the plate, from the top are:
• The machine’s type designation (I.D.).
• The manufacturer’s type number (Model).
• The machine’s serial number (Serial no.)
Please have the type designation and serial number available
when ordering spare parts.
The engine’s manufacturing number is stamped on one of the
valve covers.
The plate states:
• The engine’s model.
• The engine’s type.
• Code
Please have these available when ordering spare parts.
The wheel motors and hydrostatic pumps have a barcode
decal affixed at the rear.
Engine
5
SYMBOLS AND DECALS
These symbols are found on the machine and in the operator
manual.
Study them carefully so that you know what they mean.
WARNING! Xxxx xxxxxx xxxxx xxxx xxxxxxxxx
xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.
Used in this publication to notify the reader of a risk of
personal injury or death, particularly if the reader should
neglect to follow instructions given in the manual.
IMPORTANT INFORMATION Xxxx xxxxxx xxxxx xxxx
xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx.
Used in this publication to notify the reader of a risk of material
damage, particularly if the reader should neglect to follow
instructions given in the manual. Used also when there is a
potential for misuse or misassembly.
R N
Reverse Neutral Fast Slow Choke Fuel Warning! Park Brake
Noise emissions to the
surroundings.
Australia and
New Zealand only
Do not
stand here
Use protective
glasses
Use protective
gloves
Danger. Keep hands
and feet away
Do not touch parts
Electromagnetic
Compatibility (EMC)
Compliance
Australia and
New Zealand only
Read Operator Manual
Whole body
exposure to
thrown objects
Battery acid is corrosive, explosive
Shut off engine, remove
key before performing
maintenance or repair
Severing of fingers
and toes
and flammable
Keep a safe
distance from
the machine
Do not open or
remove safety shields
wIth engine running
Warning!
Rotating blades,
keep away from the
discharge deck
Use on slopes no
greater than 10° No passengers
Careful backing up,
watch for
other people
Careful going
forward, watch for
other people
6
SAFETY
Safety Instructions
These instructions are for your safety. Read them carefully.
General Operation
WARNING! THIS CUTTING MACHINE IS CAPABLE
OF AMPUTATING HANDS AND FEET AND THROWING
OBJECTS. FAILURE TO OBSERVE THE FOLLOWING
SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS
INJURY OR DEATH.
• Read, understand, and follow all instructions on the
machine and in the manual
before starting.
• It is recommended that
someone be aware that
you are mowing and can
provide help in case of
injury or accident.
• Do not put hands or feet
near rotating parts or under
the machine. Keep clear of the discharge opening at all
times.
• Only allow responsible adults, who are familiar with the
instructions, to operate the machine.
• Clear the area of objects such as rocks, toys, wire, etc.,
which could be picked up and thrown by the blades.
• Be sure the area is clear of bystanders before operating.
Stop machine if anyone
enters the area.
• Do not mow in reverse
unless absolutely
necessary. Always look
down and behind before
and while backing.
• Never direct discharged
material toward anyone.
Avoid discharging material
against a wall or obstruction. Material may ricochet back
toward the operator. Stop the blades when crossing gravel
surfaces.
• Do not operate machine without the entire grass catcher,
discharge guard, or other safety devices in place and
working
• Slow down before turning.
• Never leave a running machine unattended. Always turn
off blades, set park brake, stop engine, and remove keys
before dismounting.
• Never carry passengers. The machine is only intended for
use by one person.
• Disengage blades when not mowing. Shut off engine and
wait for all parts to come to a complete stop before cleaning
the machine, removing the grass catcher, or unclogging the
discharge guard.
• Operate machine only in daylight or good artificial light.
• Do not operate the machine while under the influence of
alcohol or drugs.
• Watch for traffic when
operating near or crossing
roadways.
• Use extra care when
loading or unloading the
machine into a trailer or
truck.
• Always wear eye protection
when operating machine.
• Wear proper Personal Protective Equipment (PPE) while
operating this machine, including (at a minimum) sturdy
footwear, eye protection, and hearing protection. Do not
mow in shorts and/or footwear with open toes.
• Data indicates that operators age 60 years and above are
involved in a large percentage of riding mower-related
injuries. These operators should evaluate their ability
to operate the riding mower safely enough to protect
themselves and others from serious injury.
• Follow the manufacturer’s recommendation for wheel
weights or counterweights.
• Anyone who operates this machine must first read and
understand this Operation Manual. Local laws may regulate
the age of the user.
• Keep machine free of grass, leaves or other debris buildup
which can touch hot exhaust or engine parts and burn. Do
not allow the mower deck to plow leaves or other debris
which can cause buildup to occur. Clean any oil or fuel
spillage before operating or storing the machine.
• Allow machine to cool before storage.
Personal Safety Equipment
• Make sure that first aid equipment is close at hand when
using the machine.
• Never use the machine when barefoot.
• Always wear protective shoes or boots, preferably with steel
toe caps.
• Always wear approved protective glasses or a full visor
when assembling or
driving.
• Always wear gloves when
handling the blades.
• Never wear loose clothing
that can get caught in
moving parts.
• Use ear protectors to avoid
damage to hearing.
WARNING! When using the machine, approved
personal protective equipment should be used. Personal
protective equipment cannot eliminate the risk of injury
but it will reduce the degree of injury if an accident does
happen. Ask your retailer for help in choosing the right
equipment.
7
SAFETY
Slope Operation
Slopes are a major factor related to loss of control and tip-over
accidents, which can result in severe injury or death. Operation
on all slopes requires extra caution. If you cannot back up the
slope or if you feel uneasy on it, do not mow it.
• Mow up and down slopes
(10 degrees maximum), not
across.
• Watch for holes, ruts,
bumps, rocks, or other
hidden objects. Uneven
terrain could overturn the
machine. Tall grass can hide
obstacles.
• Choose a low ground speed
so that you will not have to stop while on the slope.
• Do not mow on wet grass. Tires may lose traction.
• Avoid starting, stopping, or turning on a slope. If the tires
lose traction, disengage the blades and proceed slowly
straight down the slope.
WARNING! Do not drive up or down hills with slopes
greater than 10 degrees. And do not drive across any
slopes.
• Keep movement on the slopes slow and gradual. Do not
make sudden changes in speed or direction, which could
cause machine to roll over.
• Use extra care while operating machine with grass catchers
or other attachments; they can affect the stability of the
machine.
• Do not use on steep slopes.
• Do not try to stabilize the machine by putting a foot on the
ground.
• Do not mow near drop-offs,
ditches, or embankments.
The machine could suddenly roll over if a wheel is
over the edge or the edge
caves in.
WARNING! CHILDREN CAN BE INJURED BY
THIS EQUIPMENT. The American Academy of Pediatrics
recommends that children be a minimum of 16 years of age
before operating a riding lawn mower.
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 mowing area and in
the watchful care of a
responsible adult other than
the operator.
• Be alert and turn machine
off if a child enters the area.
• Before and while backing,
look behind and down for
small children.
• Never carry children, even with the blades shut off. They
may fall off and be seriously injured or interfere with safe
machine operation. Children who have been given rides
in the past may suddenly appear in the mowing area for
another ride and be run
over or backed over by the
machine.
• Never allow children to
operate the machine.
• Use extra care when
approaching blind corners,
shrubs, trees, or other
objects that may block your
view of a child.
Safe Handling of Gasoline
To avoid personal injury or property damage, 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 approved gasoline containers.
• Never remove gas cap or add fuel with the engine running.
Allow engine to cool before refueling.
• Never fuel the machine indoors.
• Never store the machine
or fuel container where
there is an open flame,
spark, or pilot light such as
on a water heater or other
appliance.
• Before you begin refueling,
minimize the risk of static
electricity by touching a
metal surface.
8
SAFETY
• Never fill containers inside a vehicle or on a truck or trailer
bed with plastic liner. Always place containers on the
ground away from the vehicle when filling.
• Remove gas-powered equipment from the truck or trailer
and refuel it on the ground. If this is not possible, 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.
• Do not start the engine near spilled fuel.
• Never use gasoline as a cleaning agent.
• If leaks arise in fuel system, engine must not be started until
problem has been resolved.
• Check the fuel level before each use and leave space for
the fuel to expand, as the heat from the engine and the sun
may otherwise cause the fuel to expand and overflow.
General Maintenance
WARNING! The engine and the exhaust system
become very hot during operation.
There is risk for burns if touched.
Allow engine and exhaust system to cool before refueling.
• Never operate machine in a
closed area.
• Keep all nuts and bolts tight
to be sure the equipment is
in safe working condition.
• Maintain or replace safety
and instruction labels, as
necessary.
• Never tamper with safety
devices. Check their proper operation regularly.
• Do not modify safety equipment. Check regularly to be
sure it works properly. The machine must not be driven
with defective or unmounted protective plates, protective
cowlings, safety switches, or other protective devices.
• Do not change the settings of governors and avoid
running the engine with overly high engine speeds. If you
run the engine too fast, you risk damaging the machine
components.
• Keep machine free of grass, leaves, or other debris
buildup. Clean oil or fuel spillage and remove any fuelsoaked debris. Allow machine to cool before storing.
• If you strike a foreign object, stop and inspect the machine.
Repair, if necessary, before restarting.
• Never make any adjustments or repairs with the engine
running.
• Check grass catcher components and the discharge guard
frequently and replace with manufacturer’s recommended
parts, when necessary.
WARNING! The engine must not be started when
the driver’s floor plate or any protective plate for the mower
deck’s drive belt is removed.
• Mower blades are sharp. Wrap the blade or wear gloves,
and use extra caution when servicing them.
• Check brake operation frequently. Adjust and service as
required.
• Make sure that the equipment is in good condition and
that all nuts and bolts, especially those fastening the blade
attachments, are properly tightened and torqued.
• Ensure that the fuel filler cap is mounted tightly and no
flammable substances are stored in an open vessel.
• Never work with the starter circuit if there is spilled fuel.
• Sparking can occur when
working with the battery
and the heavy cables of
the starter circuit. This can
cause battery explosion,
fire or eye injury. Sparking
will not occur after the
grounding cable (normally
negative, black) is removed
from the battery. Disconnect
the grounding cable from the battery first and reconnect it
last.
• Do not make a bridge short circuit across the starter relay
to run the starter.
• Be very careful when handling battery acid. Acid on skin
can cause serious corrosive burns. If you spill battery acid
on your skin, rinse immediately with water.
WARNING! The battery contains lead and lead
compounds, chemicals that are considered to cause
cancer, birth defects, and other reproductive system
damage. Wash your hands after handling the battery.
• Acid in the eyes can cause blindness, contact a doctor
immediately.
• Be careful when servicing
the battery. Explosive gases
form in the battery. Never
perform maintenance on the
battery when smoking or
near open flames or sparks.
• The battery can explode
and cause serious injury or
damage.
• Never use the machine
indoors or in spaces lacking proper ventilation. The exhaust
fumes contain carbon monoxide, an odorless, poisonous,
and lethal gas.
• Stop to inspect the equipment if you run over or into
anything. If necessary, make repairs before starting.
9
SAFETY
• Never make adjustments with the engine running.
• The machine is tested and approved only with the
equipment originally provided or recommended by the
manufacturer. Only use approved repair parts for the
machine.
• The blades are sharp and can cause cuts and gashes.
Wrap the blades or use protective gloves when handling
them.
CAUTION! Use protective glasses for
maintenance work.
• Check the park brake’s functionality regularly. Adjust and
service as necessary.
• The mulch blades should only be used in familiar areas
when higher quality mowing is desired.
• Reduce the risk of fire by removing grass, leaves, and other
debris that may have accumulated on the machine.
• Allow the machine to cool before putting it in storage.
• Regularly clean deck and underside of deck, avoid
spraying engine and electrical components with water.
Transport
Towing
If machine is equipped with a tow hitch, use extreme caution
when towing. Never allow children or others in or on towed
equipment..
Make wide turns to avoid jack-knifing. Travel slowly and allow
extra distance to stop. Do not tow on sloped ground. The
weight of the towed equipment may cause loss of traction and
loss of control.
Follow the manufacturer’s recommendation for weight limits for
towed equipment. Do not tow near ditches, canals, and other
hazards.
Spark Arrestor
This mower is equipped with an internal combustion engine
and should not be used on or near any unimproved forested,
bush covered or grassy lands unless the engine’s system is
equipped with a spark arrestor meeting applicable local or
state laws (if any).
Federal laws apply on federal lands.
If a spark arrestor is used, it should be maintained in effective
working order by the operator.
A spark arrestor for the muffler is available through your
authorized Husqvarna dealer.
WARNING! Use extreme caution when loading the
machine into a truck or trailer using ramps. There is the
possibility of serious injury or death if the machine falls off
the ramps.
IMPORTANT INFORMATION The park brake is not
sufficient to lock the machine in place during transport.
Ensure that the machine is well fastened to the transport
vehicle. Always reverse the machine onto the transport
vehicle to avoid tipping it over.
• The machine is heavy and can cause serious crushing
injuries. Be extra cautious when it is loaded on or unloaded
from a vehicle or trailer.
• Use an approved trailer to transport the machine. Activate
the park brake, turn off the fuel supply, and fasten the
machine with approved fastening devices, such as bands,
chains, or straps, when transporting.
• Do not operate this machine on public roadways.
• Check and abide by local traffic regulations before
transporting the machine on any road.
• Do not tow this machine, it may cause damage to the drive
system.
• Do not tow any trailers, etc. with this mower. They may
jackknife or overturn causing damage to the mower and
possibly serious injury to the operator.
• Load the unit onto truck or trailer by driving up ramps
of suitable strength using a slow speed. Do not lift! The
machine is not intended to be lifted by hand.
• When loading or unloading this machine, do not exceed
the maximum recommended operation angle of 10
O
.
WARNING! Engine exhaust and certain vehicle
components contain or emit chemicals considered to cause
cancer, birth defects, or other reproductive system damage.
The engine exhaust contains carbon monoxide, which is an
odorless, colorless, poisonous gas. Do not use the machine
in enclosed spaces.
10
CONTROLS
This operator manual describes the Husqvarna Zero Turn
Rider. The rider is fitted with a Kawasaki four-stroke overhead
valve engine.
Transmission from the engine is made via a belt-driven
hydraulic pumps. Using the left and right steering controls, the
flow is regulated and thereby the direction and speed.
Control Locations
4
5
3
2
1
5
6
14
7
8
1. Steering control levers 8. Blade switch
2. Parking brake 9. Ignition switch
3. Tracking adjustment 10. Throttle control
4. Fuses 11. Choke control
5. Bypass linkages 12. Hour meter
6. Fuel shut off valve 13. Deck lift
7. Fuel tank 14. Seat adjustment lever
9
10
11
12
13
11
CONTROLS
Steering Control Levers
The machine’s speed and direction are continuously variable
using the two steering controls. The steering controls can
be moved forward or backward about a neutral position.
Furthermore, there is a neutral position, which is locked if the
steering controls are moved outward.
When both controls are in the neutral position (N), the machine
stands still.
By moving both controls an equal amount forward or
backward, the machine moves in a straight line forward or
backward respectively.
For example, to turn right while moving forward, move the right
control towards the neutral position. The rotation of the right
wheel is reduced and the machine turns to the right.
Zero turn can be achieved by moving one control backward
(behind the neutral position) and carefully moving the other
steering control forward from its neutral position. The rotation
direction when zero turning is determined by which steering
control is moved backward behind the neutral position. If the
left steering control is pulled backward, the machine turns to
the left. Use extra care when using this maneuver.
If the steering controls are in uneven positions when standing
still or do not fit in the slots for moving the controls outward,
they can be adjusted.
WARNING!
The machine can turn very rapidly if one steering control is
moved much further forward than the other.
Park Brake
The park brake is found on the left of the machine. Push the
release button and pull the lever backward to activate the
brake—push forward to release it.
IMPORTANT INFORMATION The machine must stand
absolutely still when applying the park brake. Always set
the park brake before dismounting. Release the park brake
before moving the mower.
Ignition Switch
Forward
Neutral
Reverse
Neutral
Lock
The ignition switch is placed on the control panel and is used
to start and stop the engine.
12
Loading...