Husqvarna MZ 52LE, MZ 52, 967 602901-00 Operator's Manual
Operator Manual
MZ 52LE / 967 602901-00
MZ 52 / 967 602901-00
EN
Please read the operator manual carefully
and make sure you understand
the instructions before using the machine.
Gasoline containing up to 10% ethanol (E10) is permitted for use
in this machine. The use of gasoline with more than
10% ethanol (E10) will void the product warranty.
CONFORMITY CERTIFICATES
USA requirements
Labels are placed on the engine and/or in the engine compartment stating that the machine
will fulll the requirements. This is also applicable to special requirements for any of the states,
(California emission rules etc.). Do not remove these labels. Certicates 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 dangerous
injury to the operator or other persons. The
owner must understand these instructions,
and must let only approved 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 inuence of mind altering substances.
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. Clean your hands
after handling.
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.
When this product is worn out and no longer
used, return it to the reseller or other party for
recycling.
To implement improvements, specications
and designs can be altered without prior
notication.
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. Modications to the unit may
cause unsafe operations or damage the unit.
©2015 All rights reserved.
Orangeburg, SC Printed in U.S.A.
CONTENTS
INTRODUCTION............................................... 4
Driving and Transport on Public Roads ....... 4
Towing ......................................................... 4
Operating ..................................................... 4
SYMBOLS AND DECALS ................................. 6
SAFETY ............................................................ 7
Protecting Children ...................................... 7
Personal Safety Equipment ......................... 8
Slope Operation ........................................... 8
Safe Handling of Gasoline ........................... 9
Transport ................................................... 10
Towing ........................................................11
Spark Arrestor .............................................11
CONTROLS .................................................... 12
Steering Control Levers ............................. 13
Park Brake ................................................. 13
Throttle Control .......................................... 13
Choke Control ............................................ 14
Blade Switch .............................................. 14
Ignition Switch ........................................... 14
Service Meter ............................................ 14
Seat Adjustment Lever .............................. 14
Fuses ......................................................... 15
Cutting Height Pedal .................................. 15
Fuel Shut Off Valve .................................... 15
Tracking ..................................................... 15
Fuel Tank ................................................... 16
Hydro Release Levers ............................... 16
OPERATION ................................................... 17
Training ...................................................... 17
Operating on Hills ...................................... 19
Moving Machine By Hand .......................... 20
MAINTENANCE .............................................. 21
Safety System ........................................... 23
Cutting Blades ........................................... 23
Park Brake ................................................. 23
Battery ....................................................... 24
Anti-scalp Rollers ....................................... 25
Caster Wheels ........................................... 25
V-belts ........................................................ 25
Adjusting the Mower Deck ......................... 26
ZT-3100 Powertrain ................................... 27
LUBRICATION ................................................ 28
Wheel and Deck Zerks .............................. 29
Engine oil ................................................... 29
Transaxle Fluid Change ............................. 30
TROUBLESHOOTING .................................... 31
STORAGE ....................................................... 32
SCHEMATIC ................................................... 33
TECHNICAL DATA .......................................... 34
SERVICE JOURNAL ....................................... 36
INTRODUCTION
Congratulations
Thank you for purchasing a Husqvarna ride-
on mower. This machine is built for superior
efciency 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 nal chapter of this operator manual provides
a Service Journal. Make sure that service and
repair work are documented. A correctly 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
usual driving direction.
Continuous dedication to improve our products
require that specications and design are subject
to change without notice.
Driving and Transport on Public Roads
Check applicable road trafc regulations before
transporting on public roads. If the machine is
transported, you must always use approved
fastening equipment and make sure that the
machine is correctly attached. DO NOT operate
this machine on public roadways.
Towing
If machine is equipped with a tow hitch, use much
more caution when towing. Do not let children or
others in or on the towed equipment. Make wide
turns to avoid jack-kning. Travel slowly and leave
more 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.
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
trafc regulations must be followed without fail.
Unauthorized modications to the design of the
machine may absolve the manufacturer from
liability for resulting personal injury or property
damage.
4
INTRODUCTION
Good Service
Husqvarna's products are sold throughout the
world and 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 certicate in the
Service Journal in this operator manual.
When you need spare parts or support in
service questions, warranty issues, etc., 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 afxed 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.
Engine Transmission
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 afxed at the rear.
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.
Used in this publication to notify the reader of a
risk of personal injury or death, particularly if the
reader neglects to follow the instructions in the
manual.
IMPORTANT INFORMATION Xxxx xxxxxx
xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx.
Used in this publication to notify the reader of a
risk of material damage, particularly if the reader
neglects to follow the instructions in the manual.
Used also when there is a potential for misuse or
misassembly.
R N
Reverse Neutral Fast Slow Choke Fuel Park Brake
Danger Use protective
glasses
Warning!
Battery acid is
corrosive, explosive
and ammable
Shut off engine,
Read Operator
Manual
Whole body
exposure to
thrown objects
remove key before
maintenance
Severing of ngers
6
Use protective
Warning!
Do not
touch parts
or repair
and toes
gloves
Keep away from
discharge deck
Keep a safe
distance from
the machine
Do not open or
remove safety
shields wIth engine
Wear hearing
protection
Warning!
running
Noise emissions
to surroundings
Warning!
Do not use
without deector
or grass catcher
Use on slopes no
greater than 10° No passengers
Careful backing up,
watch for
other people
Do not
stand here
Electromagnetic
Compatibility
(EMC)
Compliance
Careful going
forward, watch for
other people
SAFETY
Safety Instructions
These instructions are for your safety. Read them
carefully.
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.
WARNING! CHILDREN CAN BE
SERIOUSLY INJURED OR KILLED BY THIS
EQUIPMENT. Carefully read and follow all the
safety instruction that follow.
IMPORTANT INFORMATION The American
Academy of Pediatrics recommends that
children be a minimum of 16 years of age
before operating a riding lawn mower.
Protecting Children
Tragic accidents can occur if the operator is
not alert to the presence of children. Children
are frequently attracted to the machine and the
mowing activity. Do not assume that children will
stay 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.
• Do not 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 come into
the mowing area for
another ride and be
run over or backed
over by the machine.
• Do not let children to operate the machine.
• Use extreme care when going near blind
corners, shrubs, trees, or other objects that may
block your view of a child.
General Operation
• 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.
• Anyone who operates, maintains, and/or
services this machine must rst read and
understand this Operator Manual. Local laws
may regulate the age of the user. The owner
is responsible for training the users of this
equipment.
• The owner and operator of this equipment
can prevent accidents and is responsible for
accidents or injuries occurring to themselves,
other people and/or property.
• Do not put hands or feet near rotating parts or
under the machine. Keep clear of the discharge
opening at all times.
• Only let 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 fully necessary.
Always look down and behind before and while
backing.
• Do not 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 full grass
catcher, discharge guard, or other safety
devices in place and working.
• Slow down before turning.
7
SAFETY
• Always turn off blades, move the steering
control lever out to the park brake position, stop
engine and remove keys before dismounting.
• Do not 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 the machine only in daylight or good
articial light.
• Do not operate the machine while under the
inuence of alcohol or drugs.
• Watch for trafc 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.
WARNING! When using the machine,
approved personal protective equipment must
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.
• 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
must evaluate if they can safely operate the
riding mower sufciently to protect themselves
and others from serious injury.
• Follow the manufacturer’s recommendation for
wheel weights or counterweights.
• Keep machine free of grass, leaves or other
debris buildup which can touch hot exhaust or
engine parts and burn. Do not let the mower
deck plow leaves or other debris that can cause
a buildup to occur. Clean oil or fuel spillage
before operating or storing the machine.
• Let machine cool before storage.
8
Personal Safety Equipment
Make sure that rst aid
equipment is close at
hand when using the
machine.
Do not 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.
Do not wear loose clothing that can get caught in
moving parts.
Use ear protectors to avoid damage to hearing.
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 slopes requires
much more 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.
• 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; the
stability of the
machine can be effected.
• Do not use on steep slopes.
• Do not try to stabilize the machine by putting a
foot on the ground.
SAFETY
• 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! Do not drive up or down hills
with slopes greater than 10 degrees. Do not
drive across slopes.
Safe Handling of Gasoline
WARNING! The engine and the exhaust
system become very hot during operation.
There is a risk for burns if touched. Let engine
and exhaust system to cool before refueling.
To avoid personal injury or property damage, use
much more care in handling gasoline. Gasoline is
very ammable and the vapors are explosive.
• Extinguish all cigarettes, cigars, pipes, and
other sources of ignition.
• Use only approved gasoline containers.
• Do not remove the gas cap or add fuel with
the engine running. Let the engine cool before
refueling.
• Do not fuel the
machine indoors.
• Do not keep the
machine or fuel
container where
there is an open
ame, spark or pilot
light such as on a
water heater or other appliance.
• Before refueling, minimize the risk of static
electricity by touching a metal surface.
• Do not ll 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 lling.
• Do not overll fuel tank. Replace gas cap and
tighten securely.
• 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 lockopen device.
• If fuel is spilled on clothing, change clothing
immediately.
• Do not start the engine near spilled fuel.
• Do not use gasoline as a cleaning agent.
• If leaks arise in fuel system, the 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 overow.
General Maintenance
• Do not use the machine indoors or in spaces
lacking proper ventilation. The exhaust fumes
contain carbon monoxide, an odorless and
poisonous lethal gas.
• 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.
CAUTION! Use protective glasses
for maintenance work.
• Maintain or replace safety and instruction labels
as necessary.
• Do not interfere
with the intended
function of a safety
device or reduce the
protection provided
by a safety device.
Check their proper
operation regularly.
NEVER operate a machine with a safety device
that does not function properly.
• 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 oor plate or
protective plates for the mower deck’s drive
belt is removed.
• Do not change the settings of governors and
avoid running the engine with overly high
engine speeds. If you run the engine too fast,
machine components could be damaged.
• To reduce the risk of re, keep machine free of
grass, leaves or other debris buildup. Clean oil
or fuel spills and remove fuel-soaked debris. Let
machine cool before storing.
9
SAFETY
• Stop to inspect the equipment if you run over or
into anything. If necessary, make repairs before
starting.
• Do not make adjustments or repairs with the
engine running.
• The blades are sharp and can cause cuts and
gashes. Wrap blades or use protective gloves
when handling them.
• Check the park brake’s functionality regularly.
Adjust and service as necessary.
• Do not work with the starter circuit if there is
spilled fuel.
• Make sure that the fuel ller cap is mounted
tightly and no ammable substances are kept in
an open vessel.
• Sparking can occur when working with the
battery and the heavy cables of the starter
circuit. This can cause battery explosion, re
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
rst 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.
• Acid in the eyes can
cause blindness,
contact a doctor
immediately.
• Be careful when
servicing the battery.
Explosive gases
form in the battery. Do not perform maintenance
on the battery when smoking or near open
ames or sparks. The battery can explode and
cause serious injury or damage.
• 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 mulch blades must only be used in familiar
areas when higher quality mowing is desired.
• Regularly clean the deck and the underside of
the deck. Avoid spraying engine and electrical
components with water.
Transport
• 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 full width ramps for loading machine into a
trailer or truck.
• Use an approved trailer to transport the
machine. Operate the park brake by securing
the steering controls in the outboard position
with elastic or ratchet straps. Turn off the fuel
supply. Fasten the machine down with approved
devices such as bands, chains or straps.
• Both front and rear tie down straps must be
used and directed down and out from the
machine.
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 sufcient 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.
• Do not operate this machine on public
roadways.
• Check and abide by local trafc regulations
before transporting the machine on roads.
• Do not tow this machine, it may cause damage
to the drive system.
• Do not tow trailers, etc. with this mower. They
may jackknife or overturn, causing damage to
the mower and possible 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 use more than the maximum recommended
operation angle of 10 degrees.
10
SAFETY
Towing
If machine is equipped with a tow hitch, use much
more caution when towing. Do not let children or
others in or on towed equipment.
Make wide turns to avoid jack-kning. Travel
slowly and leave more 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 must not be used on
or near unimproved forested, bush covered
or grassy lands unless the engine’s system is
equipped with a spark arrestor meeting applicable
local or state laws. Federal laws apply on federal
lands.
If a spark arrestor is used, it must be maintained
in effective working order by the operator.
A spark arrestor for the mufer is available
through your authorized Husqvarna dealer.
11
CONTROLS
This operator manual describes the Husqvarna
Zero Turn Rider. The rider is tted with a four-
stroke overhead valve engine.
Transmission from the engine is made via
belt-driven hydraulic pumps. Using the left and
right steering controls, the ow is regulated and
thereby the direction and speed.
14
13
11
10
12
7
5
8
4
9
3
2
15
1. Motion control levers
2. Park brake
3. Tracking knob
4. Fuel tank
5. Fuel shut off
12
1
6. Hydro release
7. Fuses
8. Choke control
9. Ignition switch
10. Service meter
11. Throttle control
12. Blade switch
13. Seat adjustment lever
14. Deck lift
15. Deck release pedal
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.
There is a neutral position, which is locked if the
steering controls are moved out.
When both controls are in the neutral position (N),
the machine stands still.
By equally moving both controls forward or
backward, the machine moves in a straight line
forward or backward.
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 more
care when using this maneuver.
If the steering controls are in uneven positions
when standing still or do not t in the slots for
moving the controls out, they can be adjusted.
Forward
Neutral
Neutral
Lock
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. Pull the lever backward to operate the
brake and push forward to release it.
IMPORTANT INFORMATION The machine
must stand still when applying the park brake.
Always set the park brake before dismounting.
Release the park brake before moving the
mower.
Throttle Control
The throttle control regulates the engine speed
and the rate of rotation of the blades, assuming
the blade switch is pulled out.
To increase or decrease the engine speed, the
control is moved forward or back respectively.
Avoid idling the engine for long periods, as there
is a risk of fouling the spark plugs. USE FULL
THROTTLE WHEN MOWING, for best mower
performance and battery charging.
Reverse
13
CONTROLS
Choke Control
The choke control is used for cold starts to
provide the engine with a richer fuel mixture.
For cold starts, pull the control up.
Blade Switch
Service Meter
The service meter displays the total number of
hours the engine has run and indicates when the
engine and mower need servicing.
After every 50 hours of operation, an oil can icon
will appear and stay on for two hours, before
an automatic reset occurs. To manually reset
the meter, turn the key off and on ve times at
one second intervals. To service the engine and
mower, see the Service Journal of this manual.
Note: The service meter operates (clocks hours)
only when the engine is running. Be sure to turn
the key off when the unit is not in use, to prevent
meter hours from accumulating.
Seat Adjustment Lever
To engage the mower deck, pull the knob out;
mower blades are disengaged when the knob is
pressed down.
Ignition Switch
The ignition switch is placed on the control panel
and is used to start and stop the engine. On
models equipped with headlights, turn the key
clockwise to ACCESSORY for headlight use.
14
The seat can be adjusted lengthways. The lever
under the front edge of the seat is moved to the
left (as seen by the driver in the seat), to adjust
the seat backward or forward.
IMPORTANT INFORMATION Seat must not
be adjusted while unit is in motion.
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