Husqvarna P 520D, P 525D User Manual

Oper ator ′ s manual

P 520D
P 525D

Please r ead the operator’s manual carefully and make sure you

understand the instructions before using the machine.

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CONTENTS

Contents

CONTENTS

Contents ...................................................................... 2

Ser vice journal

Pre-deliv ery service ..................................................... 3

After the first 25 hours ................................................. 3

INTR ODUCTION

Dear Customer , ............................................................ 4

Driving and transport on public roads .......................... 4

Towing .......................................................................... 4

Use .............................................................................. 4

Good service ................................................................ 5

KEY TO SYMBOLS

Symbols ....................................................................... 6

WHA T IS WHAT?

Location of the controls ................................................ 7

SAFETY INSTR UCTIONS

Saf ety instructions ........................................................ 8

Driving on slopes ......................................................... 9

Children ....................................................................... 10

Maintenance ................................................................ 10

Transport ...................................................................... 11

PRESENT ATION

Presentation ................................................................. 12

Throttle trigger ............................................................. 12

Speed limiter ................................................................ 12

Counter ........................................................................ 12

Parking brake ............................................................... 12

Cutting unit ................................................................... 12

Lever for hydraulic lift of attachments ........................... 13

Seat ............................................................................. 14

Fueling ......................................................................... 14

Lights and power outlet ................................................ 14

Instrument panel .......................................................... 15

Bypass valves .............................................................. 15

ROPS (Roll Over Protective Structure) ........................ 16

Auxiliary lift system ...................................................... 16

ARTING ENGINE

Bef ore starting ............................................................. 17

Start the engine ........................................................... 17

Starting the engine with a weak battery ....................... 18

DRIVING

iving the Rider .......................................................... 19

Braking ......................................................................... 19

Stop the engine ............................................................ 19

Cutting tips .................................................................. 20

Maintenance

Maintenance schedule ................................................. 21

Cleaning ....................................................................... 22

Removing of the machine hoods ................................. 22

Checking the engine’s cooling air intake ...................... 22

Adjustment of pump and alternator belt ....................... 23

Change pump and alternator belt ................................ 23

Inspecting the muffler ................................................... 23

Adjusting the parking brake ......................................... 23

Replacement of fuel filter ............................................. 23

Cleaning the air filter .................................................... 24

Replacing the air filter .................................................. 24

Cleaning the engine and muffler .................................. 24

Check the safety system .............................................. 25

Replacing the light bulbs .............................................. 25

Main fuse ...................................................................... 25

Checking the tyre pressure .......................................... 25

Check the battery ......................................................... 26

The Cutting Unit Components ...................................... 26

Fitting the cutting head ................................................. 26

Removing the cutting unit ............................................. 27

Service position for the cutting unit .............................. 28

Placing in the service position ...................................... 28

Cutting height and tilt angle adjustment. ...................... 29

Replacing the cutting unit belts .................................... 30

Checking the blades ..................................................... 30

Removing the BioClip plug ........................................... 30

Adjustment of PTO belts .............................................. 31

Change PTO belts ........................................................ 31

Change coolant ............................................................ 32

Lubrication

Lubr ication schedule .................................................... 33

General ........................................................................ 33

Accessories .................................................................. 34

Pivot wheel bearings ................................................... 34

The cutting unit bevel gear ........................................... 34

Universal drive shaft joints ........................................... 34

Cutting unit bracket ...................................................... 34

Lift arm rear bearings ................................................... 34

Lift cylinder ................................................................... 34

The drive shaft front support bearing ........................... 35

The drive shaft rear support bearing ............................ 35

Steering cylinder .......................................................... 35

Joint bearing ................................................................. 35

Link brace ..................................................................... 35

Checking the engine’s oil level. .................................... 35

Changing the oil filter ................................................... 36

Check the hydraulic system oil level ............................. 36

Check the oil level in the transmission gearboxes ........ 37

Knobs for setting the cutting height .............................. 37

Driver seat .................................................................... 37

Lubricating the cables .................................................. 37

Throttle and choke cables, lever bearings .................... 37

Lubricate the parking brake wire .................................. 37

roubleshooting schedule

ELECTRICAL SYSTEM

Wir ing diagram ............................................................. 41

ELECTRICAL SYSTEM

Wir ing diagram ............................................................. 47

Stora ge

Winter stor age .............................................................. 53

Guard ........................................................................... 53

Service ......................................................................... 53

TECHNICAL D ATA

EC-declar ation of conformity ........................................ 55

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Ser vice journal

Pre-deliver y service

Charge the battery for at least 4 hours at max. 3
amp.

2 Check coolant level and antifreeze.

3 Check and adjust tyre pressure (150 kPa, 1,5 bar,

21,8 PSI).

4 Make sure the correct amount of oil is in the

cutting unit's bevel gear.

5 Check that the right amount of oil is in the engine.

6 Check that there is oil in the transmission’s oil

tank.

7 Fit cutting unit.

8 Adjust cutting unit:

Adjust cutting unit so that rear edge is about 6-9
mm higher than front edge.

9 Lubricate the universal drive shaft with grease.

10 Connect battery.

11 Fill with fuel and start engine.

12 Check that machine does not move in neutral.

13 Check:

Forward drive.

Reverse drive.

Operation of blades.

Seat safety switch.

14 Tell customer about:

The requirement and advantages of servicing the
machine according to the service plan

Servicing and the influence of this journal on the
second-hand value of the machine.

The transmission guarantee is only valid if the
synchronisation of the front and rear wheels has
been checked and adjusted in compliance with
the service schedule. The system will be damaged if
synchronisation is not carried out.

At temperatures below 0 ° C, the machine must
be warmed up for at least 10 minutes for the
hydraulic oil and transmission to get hot.
Otherwise there is a risk of the transmission breaking
down thereby reducing the service life of the transmission.

Range of applications for BioClip.

Complete proof of sale etc.

Pre-delivery service carried out. No outstanding problems.
Certified:

______________________________________________
Date, mileage, stamp, signature

Safety switch for parking brake.

After the fi rst 25 hours

Change the engine oil and oil filter

2 Change the transmission oil and oil filter

3 Check the synchronisation between the front and

rear wheels.

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INTR ODUCTION

Dear Customer ,

Thank y ou for choosing a Husqvarna Rider. Husqvarna Riders are built to a unique design with a front-mounted cutting unit and a
patented articulated steering. Riders are designed for maximum efficiency even in small or confined areas. The closely grouped
controls and pedal-operated hydrostatic transmission also contribute to the performance of this machine.

This operator’s manual is a valuable document. By following its instructions (on operation, service, maintenance, etc.) you will
significantly extend the life of the machine and even its second-hand value.

When you sell your Rider, make sure you pass on the operator’s manual to the new owner.

The last chapter in the operator’s manual consists of a Service Journal. Make sure that all service work and repairs are recorded.
A well-documented service history reduces the costs of seasonal maintenance and influences the second-hand value of the
machine. Bring the operator’s manual with the Rider when bringing it to a workshop for service procedures.

Driving and transpor t on public roads

Chec k the relevant road traffic regulations before driving the machine on a public road. If transporting the machine on another
vehicle always use approved securing devices and make sure that the machine is securely held.

owing

When y our machine is equipped with a hydrostatic transmission you should only tow the machine over short distances and at a
low speed, otherwise there is a risk of damaging the transmission.

The transmission must be disengaged when towing, see instructions under the heading Bypass valves.

Use

This r ide-on mower is designed to mow grass on open and level ground surfaces. In addition, there is a number of accessories
recommended by the manufacturer that broadens the application area. Please contact your dealer for more information about
which accessories are available. The machine may only be used with the equipment recommended by the manufacturer. All other
types of use are incorrect. Compliance with and strict adherence to the conditions of operation, service and repair as specified by
the manufacturer also constitute essential elements of the intended use.

IMPOR TANT INFORMATION The transmission guarantee is only valid if the synchronisation of the front and rear wheels has

been checked and adjusted in compliance with the service schedule. The system will be damaged if synchronisation is not
carried out.

This machine should be operated, serviced and repaired only by persons who are familiar with its particular characteristics and
who are acquainted with the relevant safety procedures.

Accident prevention regulations, all other generally recognised regulations on safety and occupational medicine, and all road traffic
regulations must be observed at all times.

Any arbitrary modifications carried out to this machine may relieve the manufacturer of liability for any resulting damage or injury.

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English

INTR ODUCTION

Good ser vice

Husqv arna products are sold all over the world and ensures that you, the customer, get the best support and service. For example,
before this machine was delivered it was inspected and adjusted by your dealer. See the certificate in the Service Journal in this
manual.

When you need spare parts or advice on service issues, warranty terms, etc., contact:

This Operator’s Manual belongs to machine with
serial number:

On the machine's rating plate you will find the following information:

• The machines type designation.

• The manufacturer’s type number.

• The machine’s serial number.

State the type designation and serial number when ordering spare parts.

Engine Transmission

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KEY T O SYMBOLS

Symbols

These symbols are on the machine and in the instr uctions.

WARNING! Careless or incorrect use can
result in serious or fatal injury to the
operator or others.

Please read the operator’s manual
carefully and make sure you understand
the instructions before using the machine.

Always wear:

• Approved hearing protection

This product is in accordance with
applicable EC directives.

Fast

Slow

Stop the engine.

Warning: rotating parts. Keep hands and feet
clear.

Watch your hands and other body parts
so they do not get caught and crushed
between the belt and belt pulley.

Rotary blades Keep hands and feet
away from under the hood when the
engine is running

Never drive across a slope

Never use the machine if persons,
especially children, or animals, are in the
vicinity

Never carry passengers on the machine or
equipment

Fuel

Oil pressure

Backwards

Forwards

Ignition

Parking brake

Noise emission to the environment
according to the European Community’s
Directive. The machine’s emission is
specified in the Technical data chapter and
on the label.

Drive very slowly if no cutting unit is
fitted

Starting instructions

Risk of crush injuries!

Danger of crushing between the lift arms
and base plate.

If the frame is folded up, the safety belt
must be used.

Connecting the power take-off (PTO).

Disengaging the power take-off (PTO)

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English

If the frame is folded down the safety
belt should NOT be used.

WHA T IS WHA T?

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Location of the contr ols

Knob for seatback angle

2 Throttle trigger

3 Power outlet

4 Switch for the power outlet

5 Control for cutting unit drive

6 Lever for hydraulic lift of attachments

7 Parking brake

8 Switch for the lights

9 Ignition lock

10 Instrument panel

11 Speed limiter for reversing

12 Speed limiter for driving forward

13 Adjusting the cutting height

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16 17

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19

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14 Counter

15 Temperature gauge

16 Knob for adjustment of the seat suspension

17 Lever for longitudinal seat adjustment

18 Bypass valve front axle

19 Product and serial number plate

20 Fuel gauge

21 Catch for lowering seat

22 Fuel cap

23 Knob for lumbar support

24 Cover lock

25 Bypass valve rear axle

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SAFETY INSTR UCTIONS

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Saf ety instructions

These instr uctions are for your safety. Read them carefully.

Insure y our Rider

Check the insurance coverage for your new Rider.

• Contact your insurance company.

• You should have fully comprehensive insurance including:
third party, fire, damage, theft and liability

General use

Read all the instructions in this operator’s manual and on
the machine before you start it. Ensure you understand
them and then observe them.

• Remember that the driver is responsible for dangers or
accidents.

• Never carry passengers. The machine is only intended to
be used by one person.

• Always look downwards and backwards before and while
reversing. Keep watch for both large and small obstacles.

• Slow before cornering.

• Switch off the blades when you are not mowing.

ARNING! This machine produces an

electromagnetic field during operation. This

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field may under some circumstances
interfere with active or passive medical
implants. To reduce the risk of serious or
fatal injury, we recommend persons with
medical implants to consult their physician
and the medical implant manufacturer
before operating this machine.

• Learn how to use the machine and its controls safely and
learn to how to stop quickly. Also learn to recognize the
safety decals.

• Only allow the machine to be used by adults who are
familiar with its use.

• Make sure nobody else is in the vicinity of the machine
when you start the engine, engage the drive or drive off.

• Clear the area of objects such as stones, toys, wires, etc.
that may become caught in the blades and be thrown out.

• Look out for the ejector and do not direct it towards
anyone.

• Stop the engine and prevent it from starting before you
clean the cutting unit.

• Take care when rounding a fixed object, so that the blades
do not hit it. Never run the machine over foreign objects.

ARNING! This machine can sever hands

and feet as well as throw objects. Failure to

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observe the safety instructions can result in
serious injuries.

ARNING! The inside of the muffler contain

chemicals that may be carcinogenic. Avoid

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contact with these elements in the event of a
damaged muffler.

ARNING! The engine emits carbon

monoxide, which is a colourless, poisonous

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gas. Do not use the machine in enclosed
spaces.

• Only use the machine in daylight or in other well-lit
conditions. Keep the machine at a safe distance from
holes or other irregularities in the ground. Pay attention to
other possible risks.

• Never use the machine if you are tired, if you have
consumed alcohol, or if you are taking other drugs or
medication that can affect your vision, judgement or co­ordination.

• Keep an eye on the traffic when working close to a road or
when crossing it.

• Never leave the machine unsupervised with the engine
running. Always stop the blades, apply the parking brake,
stop the engine and remove the keys before leaving the
machine.

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SAFETY INSTR UCTIONS

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Never allow children or other persons not trained in the
use of the machine to use or service it. Local laws may
regulate the age of the user.

ARNING! You must use approved personal

protective equipment whenever you use the

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machine. Personal protective equipment
cannot eliminate the risk of injury but it will
reduce the degree of injury if an accident
does happen. Ask your dealer for help in
choosing the right equipment.

• Use hearing protection to minimise the risk of hearing
impairment.

This is what y ou do

Remove obstacles such as stones, branches, etc.

• Mow upwards and downwards, not sideways.

• Do not use the machine on ground that slopes more than
10 ° .

• Take extra care if any attachments are fitted that can
change the stability of the machine.

• Avoid starting or stopping on a slope. If the tyres start to
slip, stop the blades and drive slowly down the slope.

• Always drive smoothly and slowly on slopes.

• Always use ROPS (Rollover Protective Structure) and
seat belts when riding on slopes.

• Never wear loose-fitting clothing, jewellery or similar that
can get caught in moving parts.

• Never use the machine when barefoot. Always wear
protective shoes or protective boots, preferably with steel
toes.

• Make sure that you have first aid equipment close at hand
when using the machine.

Driving on slopes

iving on slopes is one of the operations where the risk of
the driver losing control of the machine or of it overturning is
the greatest; this can result in serious injury or death. All
slopes demand extra care. If you cannot reverse up a slope or
if you feel unsure, do not mow it.

IMPORTANT INFORMATION

Do not drive down slopes with the unit raised.

• Do not make any sudden changes in speed or direction.

• Avoid unnecessary turns on slopes, if necessary, turn
slowly and gradually downwards if possible. Drive slowly.
Do not turn the wheel sharply.

• Watch out for and avoid driving over furrows, holes and
bumps. It is easier for the machine to overturn on uneven
ground. Tall grass can hide obstacles.

• Do not mow too close to edges, ditches or banks. The
machine can suddenly overturn if one wheel comes over
the edge of a steep slope or a ditch, or if an edge gives
way.

• Do not mow wet grass. It is slippery, and tyres can lose
their grip so that the machine skids.

• Do not try to stabilize the machine by putting your foot on
the ground.

• When cleaning the chassis, the machine may never be
driven near verges or ditches.

• When mowing, keep away from bushes and other objects.

• Follow the manufacturer’s recommendations regarding
wheel weights or counterbalance weights to increase
machine stability.

IMPORTANT INFORMATION

Some combinations of accessories require additional
counterweight at the rear Check with your dealer for the
right combination.

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SAFETY INSTRUCTIONS

Children

• Serious accidents may occur if you fail to be on your guard
for children in the vicinity of the machine. Children are
often attracted to the machine and mowing. Never
assume that children will remain where you last saw them.

• Keep children away from the area to be mowed and under
close supervision by another adult.

• Keep an eye out and shut off the machine if children enter
the work area.

• Before and during reversing procedures, look behind you
and down for small children.

• Never allow children to ride along. They can fall off and
seriously injure themselves or be in the way for safe
manoeuvring of the machine.

• Never allow children to operate the machine.

• Be particularly careful near corners, bushes, trees or
other objects that block your view.

• Electrical shocks can cause injuries. Do not touch cables
when the engine is running. Do not test the ignition
system with your fingers.

WARNING! The engine and the exhaust
system become very hot during operation.

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Risk of burn injuries if touched. When
mowing, keep away from bushes and other
materials in order to avoid a heating effect.

• If leaks arise in the fuel system, the engine must not be
started until the problem has been resolved.

• Store the machine and fuel in such a way that there is no
risk that leaking fuel or fumes can cause any damage.

• Check the fuel level before each use and leave space for
the fuel to expand, because the heat from the engine and
the sun may otherwise cause the fuel to expand and
overflow.

• Avoid overfilling. If you spill petrol on the machine, wipe up
the spill and wait until it has evaporated before starting the
engine. If you spill on your clothing, change your clothing.

• Allow the machine to cool before performing any actions
in the engine compartment.

• Take care with battery maintenance. Explosive gases
form in the battery. Never perform maintenance on the
battery while smoking or in the vicinity of open flames or
sparks. This can cause the battery to explode and cause
serious injuries.

Maintenance

• Stop the engine. Prevent the engine from starting by
removing the ignition key before making any adjustments
or performing maintenance.

• Never fill the fuel tank indoors.

• Fuel and fuel vapour are poisonous and highly flammable.
Be especially careful when handling petrol and engine oil,
as carelessness can result in personal injury or fire.

• Only store fuel in containers approved for the purpose.

• Never remove the fuel cap and fill the fuel tank when the
engine is running.

• Allow the engine to cool before refuelling. Do not smoke.
Do not fill with fuel in the vicinity of sparks or naked
flames.

• Handle oil, oil filters, fuel and the battery carefully, of
environmental considerations. Follow the local recycling
requirements.

• Make sure all nuts and bolts are tightened correctly and
that the equipment is in good condition.

• Do not modify safety equipment. Check regularly to be
sure it works properly. The machine must not be driven if
protective plates, protective covers, safety switches or
other protective devices are not fitted or are defective.

• Observe the risk of injury caused by moving or hot parts if
the engine is started with the engine cover open or
protective cowlings removed.

• Never use the machine indoors or in spaces lacking
proper ventilation. Exhaust fumes contain carbon
monoxide, an odourless, poisonous and highly dangerous
gas.

10 – English

SAFETY INSTRUCTIONS

• Stop and inspect the equipment if you run over or into
anything. If necessary, make repairs before starting.

• Never make adjustments with the engine running.

• The machine is tested and approved only with the
equipment originally provided or recommended by the
manufacturer.

• The blades are sharp and can cause cuts. Wrap the
blades or wear protective gloves when handling them.

• Check regularly that the parking brake works. Adjust and
maintain as required.

• Reduce the risk of fire by removing grass, leaves and
other debris that may have fastened on the machine.
Allow the machine to cool before putting it in storage.

Transport

IMPORTANT INFORMATION

The parking brake is not sufficient to lock the machine
during transport. Ensure you secure the machine firmly to
the transporting vehicle.

• The machine is heavy and can cause serious crush
injuries. Take extra care when loading it onto or off a
vehicle or trailer.

• Use an approved trailer to transport the machine.

• To secure the machine on the trailer, two approved
tension belts and four wedge shaped wheel blocks should
be used.

Engage the parking brake and tie the tension belts around
the front and rear brackets.

Secure the machine by tensioning the belts towards the
back and the front of the trailer respectively.

Place the wheel blocks in front of and behind the rear
wheels.

• Check and observe local road traffic regulations before
transporting or driving the machine on roads.

English – 11

PRESENTATION

Presentation

Congratulations on your choice of an excellent quality product
that will give you great pleasure for many years. This
operator’s manual describes P 520D and P 525D.

P 520D and P 525D are equipped with hydraulic steering and
an equipment hoist.

The machines are equipped with four wheel drive.

The power transmission from the engine is handled by a
hydrostatic transmission, which allows variable variation of
the speed by using the pedals. One pedal for driving forward
and one for reverse.

Counter

The chronometer shows how many hours the engine has
been running.

Any time when the engine is not running but the ignition is
switched on is not registered. The last digit shows tenths of an
hour (6 minutes).

Parking brake

Operate the parking brake by moving the handle forwards.

Throttle trigger

The throttle control regulates the engine speed, and thereby
also the rotation speed of the blades.

To increase or reduce the engine speed the control is moved
forwards or backwards.

When driving the throttle control must be in the position for
maximum engine speed, work mode.

Speed limiter

The speed of the machine is steplessly regulated with two
pedals. Pedal (1) is used to drive forwards, and pedal (2) to
drive backwards.

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Cutting unit

P 520D and P 525D can be equipped with two different cutting
units.

• Combi 132

• Combi 155

The Combi-unit, equipped with a BioClip-plug, finely chops
the cuttings to fertiliser. Without the BioClip-plug the unit
works in the same way as a rear ejection unit. The rear ejector
ejects the clippings behind the unit without finely chopping
them.

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12 – English

WARNING! Make sure that branches do not
obstruct the pedals when mowing under
bushes. Otherwise there is a risk you may
lose control.

PRESENTATION

Adjusting the cutting height

The cutting height can be adjusted to seven different
positions.

Select the required cutting height (1-7) using the cutting
height adjusters. Set the knobs horizontally so that they do
not snag on bushes and the like.

Lever for hydraulic lift of attachments

The lifting lever is used to put the cutting unit in either the
transport or mowing position when hydraulic pressure is
available.

The lever has four different positions.

Pull the lever backwards to engage the transport position. The
unit is then raised.

The cutting unit can be raised slightly with the blades rotating.
This is to facilitate the mowing of extremely tall grass or
uneven surfaces.

Lowering the Unit (Mowing Position)

Move the hydraulic lifting lever forwards to engage the cutting
position.

When cutting the lever should be set directly to the floating
position (3).

• Position 1 is the neutral position.

• Position 2 lowers the cutting unit with spring return to the
neutral position

• Position 3 is floating where the lever stops. The unit is
lowered to the automatically floating position, which
means that the cutting unit follows the contours of the
ground.

• Position 4 raises the cutting unit with spring return to
neutral position.

When cutting the lever should be set directly to the floating
position (3).

Lifting the Cutting Unit (Transport Position)

Stop the blades by pressing the stop button.

Controls for operating the cutting unit blades

The cutting unit can be started only when the driver is sitting
in the seat.

• Pull out the lever to engage the drive of the blades.

• Push in the lever to disengage the blades.

When the safety circuit has stopped the drive to the cutting
unit, the control must be pushed and pulled out again to start
the blades.

The safety circuit is triggered and the cutting unit is stopped
in the following cases:

• When the driver leaves the seat with the blades engaged.
There is a short delay to prevent stopping if the driver
bounces on the seat.

English – 13

PRESENTATION

Seat

The seat has a jointed attachment on the front edge and can
be tipped forward.

To fold the seat forward, the latch for the seat must be
operated.

WARNING! Take care so that hands are not
trapped or injured by the locking hooks

!

when the seat is folded back.

WARNING! Do not adjust seat settings while
driving. Risk of unsafe manoeuvring.

!

The seat can also be adjusted lengthways.

• When making adjustments, the lever under the front edge
of the seat is moved up, after which the seat can be moved
backwards or forwards to the desired position.

• The lumbar support is adjusted with the knob on the left
side of seat back .

Fueling

The fuel level in the tank is shown by the gauge on top of the
tank.

Fill with diesel fuel. Petrol must not be used under any
circumstances. Use fuel with a cetane rating over 45. Max
RME mixing 5% in mineral oil-based fuels.

• The seat suspension can be adjusted to driver's weight.
The weight is adjusted by turning the knob under the front
edge of the seat .

On the sides of the backrest are two knobs:

• Seatback angle is adjusted with the knob on the right side.

WARNING! Diesel is highly flammable.
Exercise care and refuel outdoors (see

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safety instructions).

The diesel engine injection system is very sensitive and can
be damaged by the slightest contamination. Observe the
greatest possible fuel cleanliness. Use only clean containers.

Clean the area around the fuel cap. Contamination in the tank
can cause operating problems.

If you have spilt fuel on yourself or your clothes, change your
clothes. Wash any part of your body that has come in contact
with fuel. Use soap and water.

Wipe up any spillage. Materials contaminated by fuel must be
moved to a safe location.

IMPORTANT!

Do not use the fuel tank as a support area.

Lights and power outlet

The lights are switched on and off using the switch on the
instrument panel.

14 – English

A seat heater or mobile phone charger are examples of
articles that can be connected to the power socket.

PRESENTATION

The power outlet is switched on and off using power switch on
the control panel.

The power outlet works even if the ignition is turned off. Do
not forget to disconnect the power outlet or remove the power
consumer when the machine is not in use.

The voltage is 12 V.

The power outlet is fuse protected by its own fuse. The fuse
for the power outlet is placed in the electrical connection box,
behind the side plate on the control panel.

2 Oil pressure, check oil level and top up if necessary.

3 Ignition

4 Battery charging

5 Power transmission connected

6 Parking brake

7 Spotlight

8 Switch for the lights

Bypass valves

Hydraulic pressure must be released in order for the ride-on
mower to be moved when the engine is shutoff.

The hydraulic pressure is opened and closed with a bypass
valve.

If you try to drive the machine without hydraulic pressure, it
will not move. The drive on the axle is disengaged if one valve
is open.

The P 520D and theP 525D has two valves, one valve for the
front axle and one for the rear axle.

IMPORTANT! Always drive the machine with both valves
closed.

Instrument panel

The indicator lights are on the steering console under the
steering wheel.

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1 Temperature gauge for coolant. The engine is liquid

cooled. If overheating of the engine is indicated the first
action to take is to reduce the engine temperature by
running the engine at idle with no load. Turn off the power
transmission

• Bypass valve rear axle

- The hydraulic pressure is released by opening the locking
nut (1) 1/4-1/2 turn anti-clockwise, then the bypass valve (2)
2 turns.

- The hydraulic pressure is switched on by closing the valve.
Close the valve nut (2) fully before tightening the locking nut
(1).

• Bypass valve front axle

Check coolant level and top up if necessary. Also check
that the radiator grill and radiator are clean and not
clogged. The grill is at the rear of the machine and on top
of the bonnet.

- The hydraulic pressure is released by opening the locking
nut (1) 1/4-1/2 turn anti-clockwise, then the bypass valve (2)
2 turns.

- The hydraulic pressure is switched on by closing the valve.
Close the valve nut (2) fully before tightening the locking nut
(1).

English – 15

PRESENTATION

ROPS (Roll Over Protective Structure)

ROPS is a protective frame that reduces the risk of injury in
the event of overturning. Use ROPS and a safety belt when
driving on slopes.

The frame can be folded down. Remove the two pins that hold
the frame and fold it backwards.

If the frame is folded down the safety belt should NOT be
used.

Auxiliary lift system

The auxiliary lift system transfers the weight of the cutting unit
pivot wheel to the machine's front wheel.

The effect of the auxiliary lift system can be adjusted by
moving the gas spring up or down.

Maximum effect is obtained when the gas spring is placed in
the top hole.

No effect is obtained in the slot at the bottom.

When using the cutting unit, the gas spring must be mounted
in the top hole.

If the frame is folded up, the safety belt must be used.

When the safety belt is not used, it must be wrapped around
the chair back and tightened.

16 – English

STARTING ENGINE

Before starting

• Read the safety instructions and information concerning
the placement of controls and functions before starting.

• Perform daily maintenance before starting as set out in
the Maintenance schedule.

IMPORTANT INFORMATION

The air intake grille in the engine cover must not be blocked
by, for example, clothing, leaves, grass or dirt. Impaired
cooling of the engine. Risk of major engine damage.

Start the engine

1 Ensure that the bypass valves are closed.

2 Apply the parking brake.

5 Turn the ignition key to the ignition position and hold it

there until the indicator light on the instrument panel goes
out.

6 Turn the ignition key to the start position.

7 When the engine starts release the ignition key

immediately back to neutral position.

3 Push the PTO switch down (blades off).

The engine will not start unless the parking brake is on
and the PTO switch is pressed

4 Move the throttle control to half throttle.

IMPORTANT INFORMATION

Do not run the starter for more than about 15 seconds at a
time. If the engine does not start, wait about 15 seconds
before trying again.

8 Set the required engine speed with the throttle control.

Let the engine run at moderate speed or half throttle for 3­5 minutes before subjecting it to heavy load.

WARNING! Never run the engine indoors, in
enclosed or poorly ventilated areas. The

!

exhaust fumes contain toxic carbon
monoxide.

Starting and driving when cold

If the engine fails to start due to the cold, repeat ignition and
attempt to re-start. Start gas or ether must not be used.

IMPORTANT! At temperatures below 0 ° C, the machine
must be warmed up for at least 10 minutes for the hydraulic
oil and transmission to get hot. Otherwise there is a risk of
the transmission breaking down thereby reducing the
service life of the transmission.

Winter fuel

When driving in very cold weather operating problems due to
paraffin precipitation can occur if you run on standard fuel. To
counteract this, winter fuel is sold in the climate areas
affected. In some regions, different fuel is sold in summer and
winter. Ask your fuel supplier and use only winter fuel below
0°C (+32°F).

English – 17

STARTING ENGINE

Starting the engine with a weak battery

WARNING! Lead-acid batteries produce
explosive gases. Avoid sparks, open flames

!

and smoking close to batteries. Always wear
protective glasses in the vicinity of batteries.

If the battery is too weak to start the engine, it should be
recharged.

When jump leads are used for emergency starting, follow the
procedure below:

IMPORTANT INFORMATION Your Rider is equipped with a
12-volt system with negative earth. The other vehicle must
also have a 12-volt system with negative earth. Do not use
your Rider battery to start other vehicles.

Connecting the jump leads

• Connect each end of the red cable to the POSITIVE pole
(+) on each battery, exercise care not to short circuit any
of the ends against the chassis.

• Connect one end of the black cable to the NEGATIVE pole
(-) on the fully charged battery.

• Connect the other end of the black cable to a good
CHASSIS EARTH, away from the fuel tank and the
battery.

Remove the cables in the reverse order

• The BLACK cable is removed from the chassis and then
the fully charged battery.

• Finally the RED cable from both batteries.

18 – English

DRIVING

Driving the Rider

1 Release the parking brake before driving

2 Carefully press down one of the pedals until the required

speed is obtained. Pedal (1) is used to drive forwards, and
pedal (2) to drive backwards.

1

2

3 Lower the cutting unit by directly moving the lever forward

to the float position where the lever stays put.

Turn off the cutting unit using the PTO button.

1 Apply the parking brake by moving the handle downward.

2 Lift the cutting unit with the hydraulic lifting lever.

4 Start the cutting unit if necessary by pulling up the switch

for the cutting unit.

Braking

Release the drive pedals. The machine slows and is stopped
by the drive system. Do not use the parking brake as the drive
brake.

Quicker braking is possible if you press down the drive pedal
for the opposite direction.

Stop the engine

3 Move the throttle control to the MIN. position. Turn the

ignition key to ”OFF”-position.

Preferably allow the engine to idle for a minute to obtain
normal working temperature before stopping it if it has been
working hard.

English – 19

DRIVING

Cutting tips

WARNING! Clear the lawn from stones and
other objects which can be thrown out by

!

the blades.

• Localise and mark stones and other fixed objects to avoid
collision.

• Start with a high cutting height and reduce down until the
required mowing results are obtained.

• The mowing result will be best with the highest permitted
engine speed, see technical data, (the blades rotate
rapidly) and low speed (the Rider moves slowly). If the
grass is not too high and thick, the driving speed can be
increased without noticeably depreciating the mowing
result.

• The best lawns are achieved if the grass is cut often.
Mowing becomes more uniform and the grass cuttings
become more evenly distributed over the surface. The
total time consumption is not greater since it is possible to
select a higher driving speed without inferior mowing
results.

• Avoid mowing a wet lawn. The mowing results are inferior
since the wheels sink down into the soft lawn.

• Hose down the cutting unit with water underneath each
time it is used. The cutting unit should then be put in the
service position.

• When the BioClip function is used, it is very important that
the mowing interval is not too long.

WARNING! Do not use the machine on
ground that slopes more than 10

!

slopes upwards and downwards, never
across. Avoid sudden changes in direction.

°°°°.... Mow

20 – English

Maintenance

Maintenance schedule

The following is a list of the maintenance which should be conducted on the machine. For those points not described in this manual,
visit an authorised service workshop.

Maintenance Daily maintenance Maintenance interval in hours

Before

starting

Check the safety system X

Check for fuel and oil leakage. O

Check the engine’s oil level X X

Check coolant level and antifreeze. X X

Checking the transmission oil level X X

Check and clean the engine’s cooling air intake, clean the radiator. X X

Cleaning X

Start engine and blades, listen for noise O

Check nuts and screws O

Clean underside of cutting unit X

Lubricate throttle cable X

Grease the blade shafts X

Check air filter X

Check the tyre pressures. X

Lubricate according to lubrication schedule, see under heading
"LUBRICATION"

Clean thoroughly around engine X

Clean thoroughly around transmission X

Clean the air filter and empty the particle collector X

Checking the blades X

Replace the fuel filter X

Change engine oil and filter

Check the synchronisation between the front and rear wheels. O

Change hydraulic oil and hydraulic filter. O

Check belt tension and condition (alternator belt, PTO belt, cutting
unit belt)

Check the battery condition, clean as necessary. X

Clean transmission air intake X X

Check oil level in the bevel gear, top up if necessary. X

Check the wheel nuts. O

Check the parking brake X

Replace the air filter2). X

Change belts (PTO belt and cutting unit belt). X

Change the oil in the bevel gear. X

Change pump and alternator belt X

Change coolant (50% glycol). X

Service at an authorised service representative. O

1)

First change after 25 hours. When operating with a heavy load or at high ambient temperatures, replace every 50 hours.

more often in dusty conditions.

X = Described in this operator's manual

O = Not described in this operator's manual

1)

After work is

completed

2)

10 40 100 200 400 800

X X

1)

X

X

2)

Maintenance and replacement are required

WARNING! No service procedures must be
conducted on the engine or cutting unit

!

unless:

The engine is switched off.

The parking brake is applied.

The ignition key is removed.

The cutting unit is disengaged.

English – 21

Maintenance

Cleaning

Clean the machine directly after use. It is much easier to wash
off grass cuttings before they dry.

Oily dirt can be removed using a cold degreasing agent.
Spray on a thin layer.

Rinse at normal water pressure.

Do not direct the jet towards electrical components or
bearings.

Do not rinse hot surfaces such as the engine and exhaust
system.

It is recommended that you start the engine and run the
mower for a short period after cleaning, so that any remaining
water is blown off.

Lubricate the machine if necessary after cleaning. Carry out
extra lubrication when the bearings have been exposed to a
degreaser or a water jet.

Side cover

Loosen the screws holding the side cover and remove it.

Service hatch

A service panel is fitted in the base plate.

Loosen the screws and lift off the panel.

Transmission cover

Loosen the screws and remove the transmission cover.

IMPORTANT INFORMATION

Avoid using a high pressure washer or a steam cleaner.

There is a major risk of water penetrating into bearings and
electrical connections. Corrosion attack can result, which will
lead to running problems. Cleaning additives generally
aggravate the damage.

Removing of the machine hoods

Engine cover

Loosen the rubber straps on the side of the cover and lift up
the engine cover.

If necessary the engine cover can be lifted off by removing the
bolts.

Checking the engine’s cooling air intake

Make sure the radiator grille is free of leaves, grass and dirt.

Cleaning the radiator cell package

Open the engine cover.

If necessary, remove the engine cover.

22 – English

Clean the radiator with compressed air. Use compressed air
blown from the engine compartment through the cell package
and back.

Maintenance

Adjustment of pump and alternator belt

• Loosen the lower mounting screw and upper adjustment
screw a few turns.

• Tension the belt by pulling the alternator along the track. It
must be possible to press the belt in about 1 cm with your
thumb without too much pressure.

• Tighten the adjustment screw securely.

Change pump and alternator belt

• Loosen the lower mounting screw and upper adjustment
screw a few turns.

Adjusting the parking brake

Make sure the parking brake is properly adjusted by placing
the machine on a slope.

Apply and lock the parking brake.

When the machine does not stand still, the parking brake
should be adjusted according to the following.

1 Position the machine on flat ground.

2 Make sure the parking brake is released.

3 Adjust so there is 1 mm play between the outer cable and

the adjuster screw when you pull the outer cable.

Adjust the adjuster screw using the nuts.

4 Tighten the nuts carefully to prevent damaging the

adjuster screw.

5 The parking brake should be checked again after the

adjustment has been made.

• Take off the old belt and fit the new one.

• Tension the belt by pulling the alternator along the track. It
must be possible to press the belt in about 1 cm with your
thumb without too much pressure.

Inspecting the muffler

WARNING! The muffler gets very hot in use
and remains so for a short time afterwards.

!

Do not touch the muffler if it is hot!

Check regularly that the muffler is complete and secured
correctly.

WARNING! A poorly adjusted parking brake
can result in reduced braking ability.

!

Replacement of fuel filter

P 520D and P 525D have two fuel filters. A pre-filter and main
filter.

Replace the fuel filter every 100 hours (at least once per
season) or more often if it is clogged.

The pre-filter is located under the battery box and is replaced
as follows.

1 Open the engine cover.

2 Loosen the hose clips

3 Move the hose clips away from the filter. Use a pair of flat

pliers.

4 Pull off the filter from the hose ends.

5 Press the new filter into the ends of the hoses.

6 Push the hose clips back on the filter and tighten.

English – 23

Maintenance

The main filter has a paper insert that is changed as follows.

1 Open the engine cover.

2 Unscrew the filter cover and remove the paper filter.

Cleaning the air filter

If the engine seems to lack power or does not run smoothly
this may be because the air filter is clogged. When driving
with a dirty air filter the engine can suffer from lack of air, so
that it does not meet environmental requirements and the
engine does not provide full power.

Emptying the particle collector

Squeeze so that the rubber tabs open and the particles can
escape.

Replacing the air filter

WARNING! The exhaust system is hot. Let it
cool before starting to replace the air filter.

!

If the engine seems to lack power or does not run smoothly
this may be because the air filter is clogged. It is therefore
important to replace the air filter at regular intervals (see
Maintenance/Maintenance Schedule for the correct service
interval).

Replace the air filter as follows:

• Open the engine cover.

• Loosen the two fasteners holding the filter cover and
remove it.

IMPORTANT INFORMATION

Never run the engine without the air filter fitted.

Poorly filtered inlet air is a main factor contributing to engine
wear. Replace the air filter according to the service
schedule or more often in dusty conditions

The filters must not be oiled. They must be fitted dry.

• Remove the filter cartridge from the filter housing.

Cleaning the filter cover

Loosen the two fasteners holding the filter cover and remove
it.

Clean the inside of the lid. It can be washed with soapy water
and blown with compressed air when the lid is removed.

Replace the air filter cover, ensure that the particle collector
is facing downwards.

24 – English

• Wipe clean the interior of the air filter housing. If
necessary, the cleaning cloth should be moistened with
white spirit or fuel. Water or compressed air should not be
used.

• Clean the filter by knocking it with care against a hard
surface. Do not use compressed air to clean the filter.
Replace the air filter if it is still dirty.

3 Fit a new air filter cartridge with the hole inward and press

it into place.

4 Replace the air filter cover, ensure that the particle

collector is facing downwards.

Cleaning the engine and muffler

Keep the engine and muffler free from grass cuttings and dirt.
Clipping debris soaked in fuel or oil on the engine means
increased risk of fire and impaired cooling.

Allow the engine to cool before cleaning. If the dirt is mixed
with oil, remove it using a degreasing agent otherwise just
water and a brush.

Grass cuttings around the muffler dry quickly and constitute a
fire risk. Brush or wash them off when the muffler is cold.

Maintenance

Check the safety system

The machine is equipped with a safety system that prevents
starting or driving under the following conditions.

The engine must only be possible to start when the following
conditions are met:

• The cutting unit is disengaged.

• The parking brake is applied.

The engine must stop under any of the following conditions:

• The cutting unit is activated and the driver stands up.

• The cutting unit is disengaged, the parking brake is not
applied and the driver stands up.

When the safety circuit has stopped the drive to the cutting
unit, the control must be pushed and pulled out again to start
the blades.

Check daily to ensure that the safety system works by
attempting to start the engine when one of the conditions
above is not met. Change the conditions and try again.

5 Lift out the bulbs from the insert.

6 Insert the new bulbs. Make sure you use your thumb to

support the front.

7 Refit the cables, lamp insert and the cover on the power

servo housing.

Main fuse

The machine has a high-power safety fuse located in a box on
the top of the battery plus terminal.

Replacing the light bulbs

For information about the bulb type, see Technical Data.

1 Unscrew the four screws holding the cover on the power

servo housing.

2 Unscrew the two screws holding the lamp insert.

3 Lift out the lamp insert.

4 Disconnect the cables from the bulbs.

A feeder fuse for the electrical connection box is located on
a bracket near the battery.

Other fuses are in the electrical connection box behind right
side cover.

A blown fuse is indicated by a burnt connector. Pull the fuse
from the holder when replacing.

The fuse is there to protect the electrical system.

Do not use any other type of fuse when replacing. If it blows
again shortly after replacement, it is due to a short circuit,
which must be fixed before the machine can be put into
operation again.

Checking the tyre pressure

The tyre pressure should be 1.5 bar/150 kPa/22 PSI for all
wheels

The air pressure in the cutting unit pivot wheel must be 150
kPa/1.5 bar/22 psi.

IMPORTANT INFORMATION

Different tyre pressures on the front tyres will result in the
blades cutting the grass at different heights.

English – 25

Maintenance

Check the battery

WARNING! Lead-acid batteries produce
explosive gases. Avoid sparks, open flames

!

and smoking close to batteries. Always wear
protective glasses in the vicinity of batteries.

The machine is equipped with a maintenance-free battery.
The battery has a service window showing different colours.

• White = Charge battery

• Green = OK.

• Red = Change battery.

Clean the battery and holder with soap/water solution.

A discarded or replacement battery should be handled as
hazardous waste.

The Cutting Unit Components

The components mentioned are:

2

4

3

5

9

6

Fitting the cutting head

1 Place the machine on a flat surface and apply the parking

brake.

2 Start the engine and lower the lift arms to floating mode.

WARNING! If the help function is engaged,
the lift arms will move with great force if

!

someone releases the lifting lever. Observe
caution to avoid trapping your hand.

Risk of crush injuries.

3 Turn off the motor.

4 Fit the universal drive shaft to the cutting unit. Slide the

ring sideways to release the quick coupling and the
universal drive shaft can be pushed onto the shaft pin.

8

7

1 Cotter pin

2 Link joint

3 Cutting unit bracket

4 Clipping height adjusters

5 Universal drive shaft with quick connectors

6 Attachment point for service position

7 Service strut

8 Belt cover

9 Gear

1

5 Make sure the rubber casing is folded over the front

4

universal joint.

6 Remove the bolts and pins from the link joint on the lift

arms.

7 Slide in the cutting unit so that the link joint aligns with the

opening in the unit.

8 Insert the bolts for the link joints and the pins on both

sides.

26 – English

Maintenance

9 Remove the service hatch.

10 Fit the rear universal drive shaft.

11 Fit the locking chain to the universal joint cover around the

lifting beam.

3 Turn off the motor.

4 Remove the lifting eyes from the cutting unit.

5 Start the engine and lower the cutting unit to the lowest

position (floating mode). The cutting unit now hangs free
at the back.

6 Turn off the motor.

7 Remove the service hatch.

12 Refit the service cover.

13 Start the engine and lift the cutting unit halfway up.

14 Turn off the motor.

15 Fit the lifting eyes which are attached to the lift arms. Pull

out the catch and press in the lifting eye. There is one for
each lift arm.

16 Check and adjust the tilt angle of the cutting unit.

Removing the cutting unit

WARNING! Never leave the universal drive
shaft of the machine with one end loose. If

!

the engine is started, damage can occur.

1 Place the machine on a flat surface and apply the parking

brake.

2 Raise the cutting unit halfway.

8 Remove the universal drive shaft completely. Slide the

ring sideways to release the quick coupling and the
universal drive shaft can be pulled from the shaft pin.

9 Remove the pins from the shafts and remove the shafts

from the link joints.

WARNING! If the help function is connected,
the lift arms move with great force when the

!

pins are loosened. Observe caution to avoid
trapping your hand.

10 The cutting unit is now free.

English – 27

Maintenance

Service position for the cutting unit

The cutting head can be placed in the service position to
provide easy access for cleaning, repairs and servicing. In the
service position the cutting unit is raised and locked in the
vertical position.

Placing in the service position

1 Position the machine on flat ground. Apply the parking

brake.

2 Raise the cutting unit halfway.

3 Turn off the motor.

WARNING! Never leave the universal drive
shaft of the machine with one end loose. If

!

the engine is started, damage can occur.

If it is the first time the service strut is removed, remove
the safety strap from the strut and place it in the storage
compartment under the seat.

8 Fit the service strut to the attachment under the base

plate. The attachment is highlighted in red.

9 Fit the other end of the strut to the attachment on the

cutting unit. Remove the pin and slide the strut across the
shaft which is marked red.

4 Remove the lifting eyes from the cutting unit.

5 Start the engine and lower the cutting unit to the lowest

position (floating mode). The cutting unit now hangs free
at the back.

6 Turn off the motor.

7 Remove the service strut from the cutting unit.

10 Release the pin so that it locks over the shaft.

11 Start the engine and raise the cutting unit to the service

position.

28 – English

Maintenance

12 Secure the cutting unit with the safety belt, which is stored

in the storage compartment under the seat.

Restoring from service position

1 Remove the safety belt and place it in the storage

compartment.

Cutting height and tilt angle adjustment.

When a cutting unit is installed the cutting height and tilt angle
need to be adjusted

The adjustment must be made in the stated order.

Starting position:

1 Check the tyre pressures. The tyre pressure should be 1.5

bar/150 kPa/22 PSI for all wheels

The air pressure in the cutting unit pivot wheel must be
150 kPa/1.5 bar/22 psi.

2 Place the machine on a flat surface.

3 The cutting unit must be lowered onto a flat surface.

Cutting height

1 Set the same height on all three control points.

2 Start the engine and lower the cutting unit to the lowest

position (floating mode).

3 Remove the service strut and place it on the cutting unit.

4 Raise the cutting unit halfway.

5 Fit the lifting eyes which are attached to the lift arms. Pull

out the catch and press in the lifting eye. There is one for
each lift arm.

2 Hand tighten the cutting height adjustment knob.

3 Disengage the knob by pulling the handle and turning it to

the horizontal position so that the handle does not get
stuck in bushes or the like.

6 Lower the cutting unit to the float position

Height intervals are between 25-127 mm in seven different
positions.

English – 29

Maintenance

Tilt angle

• Place the machine on a flat surface.

• Check the tyre pressures. The tyre pressure should be 1.5
bar/150 kPa/22 PSI for all wheels

The air pressure in the cutting unit pivot wheel must be
150 kPa/1.5 bar/22 psi.

• Measure the distance between the ground and the front
and rear edges of the cutting unit hood.

• The rear edge of the cutting unit should be 6-9 mm (1/4"­3/8") higher than the front of the unit.

• Loosen the lock nut and turn the adjusting screw. Extend
the brace to raise the rear edge of the cutting unit.

• Lock the nut against the brace.

Replacing the cutting unit belts

5 Check that the belt tensioning equipment is not jammed or

binding and replace the spring.

6 Insert the new belt in place and replace the bevel gear.

The bevel gear is tightened to a torque of 47 Nm.

7 Fit the belt around the pulleys. The belt tightening

schedule is on a decal located on the cutting unit under
the belt cover.

8 Fit covers.

9 Attach the cutting unit to the machine, see Attaching the

cutting unit.

Checking the blades

To achieve the best mowing results it is important that the
blades are undamaged and well-sharpened.

Check that the blades’ attachment screws are tight. Screws
should be torque tightened to 84 Nm.

WARNING! Protect your hands with gloves
There is a risk of crush injuries when

!

working with the belt.

On these cutting units with collision-proof blades, the blades
are driven by one V-belt. Do as follows to change the V-belt:

1 Remove the cutting unit.

2 Remove the screws holding the belt cover and lift it off.

3 Pull the belt off the pulleys. Use a crowbar as necessary

to de-tension the spring and release the belt tension.

4 Loosen two screws and remove the other three for the

bevel gear. Turn the bevel gear so that the belt can be fed
under the pulley.

IMPORTANT INFORMATION Replacing or sharpening the
blades should be conducted by an authorised service
workshop.

The blades should be balanced after sharpening.

Damaged blades should be replaced when hitting obstacles
that result in a breakdown. Let the service centre assess
whether the blade can be sharpened or must be replaced.

Removing the BioClip plug

To change a Combi unit from BioClip function to cutting unit
with rear ejection, remove the BioClip plug located under the
unit with three screws.

1 Put the unit in the service position, see Placing in the

service position.

2 Remove the three screws holding the BioClip plug, and

remove the plug.

30 – English

3 Tip: Fit three full-thread screws M8x15 mm in the screw

holes to protect the threads.

4 Replace the unit in normal position.

Fit the BioClip plug in the reverse order.

Maintenance

Adjustment of PTO belts

1 Tighten screw (4) until the sleeve bottoms against the

frame bracket. Tighten lock nut (3) whilst holding screw (4)
firmly.

Change PTO belts

WARNING! Protect your hands with gloves
There is a risk of crush injuries when

!

working with the belt.

Always replace the belts in pairs.

1 Prevent the engine from starting by removing the ignition

key before making any adjustments or performing
maintenance.

2 Fold down driver's seat.

3 Remove the cover plate of the hydraulic pump drive shaft.

4 Unscrew the bolts (1) of the coupling that connects the

drive shaft and the hydraulic pump and remove the spacer
ring (2) from the coupling. The drive shaft must be locked
with some kind of tool, for example. a big U-spanner or
screwdriver.

8 Pull the new belts through the gap between the spacer

ring and the hydraulic pump.

9 Feed the lower part of the strap between the bearing

bridge and the bracket.

10 Pull the belt onto the pump belt pulley first and then onto

the lower belt pulley. Repeat the procedure with the
second belt.

11 Fit the spacer (6) to the bearing bridge and screw the

bearing bridge tight with the associated screws (5).
Torque 47 Nm.

6

5

12 Replace the spacer ring (2) and screw the hydraulic pump

securely to the drive shaft. Torque for the screws (1) is 47
Nm.

5 Loosen the lock nut (3) and the lower screw (4) until it is

completely free from the belt tensioner.

6

5

6 Remove rear bearing spacer screws (5) and remove the

spacer (6).

7 Cut/pull off the old belts.

13 Fit the belt tensioner screw with spring and sleeve.

Tighten screw (4) until the sleeve bottoms against the
frame bracket. Tighten lock nut (3) whilst holding screw (4)
firmly.

14 Check belt tension after the first 25 hours after belt

change.

English – 31

Maintenance

Change coolant

Correct coolant level is important for the cooling system to
function properly. Therefore the coolant level must be
checked regularly.

The coolant should be visible when the filler cap is removed.

Repeated coolant loss normally indicates leakage. The
cooling system should be checked by a professional. It is not
sufficient just to top up with coolant.

If the engine boils, coolant will be lost. Open the radiator cap
and allow the coolant to cool down. Allow the engine cool
before filling.

The cooling system must not be filled with salt water, as this
will cause corrosion damage to the engine.

Replace coolant if it is discoloured or cloudy

The cooling system must then be thoroughly flushed.

Use only glycol-based antifreeze approved to BS 6580:1992
or ASTM D 3306-89 or AS 2108-1977 (indicated on the
packaging).

The antifreeze must be intended for alloy engines.

Your Husqvarna supplier can provide the right type of
antifreeze.

Use antifreeze all year round and even in climates where
there is no risk of frost.

Antifreeze contains additives that protect the engine cooling
system against corrosion

The coolant and antifreeze should be changed at least every
two years.

• Remove the filler cap.

Fill only with antifreeze and water mixed according to the
following table.

Glycol Water Freezing point

60 % 40 % -47 °C / -53 °F

50 % 50 % -37 °C / -35 °F

40 % 60 % -25 °C / -13 °F

IMPORTANT! Never add cold coolant to a hot engine. Risk
of comprehensive engine damage.

• Check the coolant when the engine has run for a few
minutes after filling. There may have been air in the
system that has been released.

WARNING! Do not open the cap quickly
when the engine is hot without first

!

releasing the pressure by partially opening
the cap. Risk of burns. Wear protective
gloves and goggles.

WARNING! Antifreeze and coolant are
dangerous to health. Keep them in storage

!

in labelled containers and away from
children and animals.

• When emptying loosen the lower hose to the radiator.

32 – English

Lubrication schedule

Lubrication

Legend for the lubrication schedule

Filter replacement

Oil change

Level check

Grease nipple

Oil can

Check belts, condition and belt tension

Belt replacement

General

Remove the ignition key to prevent unintentional movements
during lubrication.

When lubricating with an oilcan, it ought to be filled with
engine oil.

When lubricating with grease, unless otherwise stated,
grease 503 98 96-01 or another chassis or ball bearing
grease offering good corrosion protection shall be used.

If the machine is used daily it should be lubricated twice a
week.

Wipe away excess grease after lubrication.

It is important to avoid getting lubricant on the belts or the
drive surfaces on the belt pulleys. Should this happen,
attempt to clean them with spirits. If the belt continues to slip
after cleaning with spirits, it must be replaced.

Petrol or other petroleum products must not be used to clean
belts.

English – 33

Lubrication

Accessories

Lubrication or other maintenance of optional equipment or
accessories is not described in this manual. This equipment
too, naturally, requires maintenance. See the manuals for the
respective accessories for instructions.

Pivot wheel bearings

4 nipples (sprocket and pivot shaft bearing), lubricate with
grease gun until grease appears.

The cutting unit bevel gear

A sight glass is located in the plug on the front of the bevel
gear.

• The universal drive shaft has two grease nipples, one on
the front hub and one on the rear hub. Lubricate with a
grease gun until the grease is forced out.

• Lubricate the telescopic joint of the universal drive shaft
with grease.

Cutting unit bracket

Lubricate swivel joints and shafts with oil.

• Check the level when the cutting unit is in the down
position.

• When filling, raise the cutting unit to the transport position
and remove the plug with the sight glass. Fill with gear oil
SAE 80W/90.

Changing the oil

• Empty the bevel gear through the sight glass using a
pump fitted with a plastic tube that extends to the bottom
of the housing.

• Alternative: Remove the cutting unit and plastic covers.
Place the cutting unit on its edge and empty the bevel gear
through the plug.

• Fill the bevel gear with 0.4 litres of gear oil SAE 80W/90

Universal drive shaft joints

• Remove the service hatch.

• Loosen the two quick connectors on the universal drive
shaft and remove the universal drive shaft.

Lift arm rear bearings

• Remove the service hatch.

• 2 grease nipples, one on each side. Lubricate with a
grease gun until the grease is forced out.

Lift cylinder

• Remove the service hatch.

• 2 grease nipples, one on each side. Lubricate with a
grease gun until the grease is forced out.

34 – English

Lubrication

The drive shaft front support bearing

Lubricate with a grease gun until the grease is forced out.

The drive shaft rear support bearing

2 grease nipples. Lubricate with a grease gun until the grease
is forced out.

Link brace

• 2 grease nipples, one on each side. Lubricate with a
grease gun until the grease is forced out.

Checking the engine’s oil level.

Check the oil level in the engine when the Rider stands
horizontal with the engine switched off.

Open the engine cover.

Loosen the dipstick, pull it up and wipe it off.

Steering cylinder

The steering cylinder has two grease nipples, one on each
end. Lubricate with a grease gun until the grease is forced
out.

Joint bearing

Grease the waist section of joint bearing Lubricate with a
grease gun until the grease is forced out.

Now insert the dipstick again.

Pull the dipstick out again and read the oil level.

The oil level should be between the markings on the dipstick.
If the level is approaching the ADD mark, top up the oil to the
FULL mark on the dipstick.

The oil filler is on the valve cap. Fill the oil slowly.

Tighten the dipstick correctly before starting the engine. Start
and run the engine at idling speed for approx. 30 seconds.
Turn off the motor. Wait 30 seconds and check the oil level. If
necessary fill so that the oil comes up to the FULL mark on
the dipstick.

English – 35

Lubrication

The following oil classes are recommended:

• API Service Class: CH4 or ACEA E5 or higher.

Choose an oil with viscosity according to the temperature
ranges in the figure:

0W

5W 20

10W 30

15W 40

20W 50

20

30

40

-30 -20 -10 0 10 20 30 40 50 C

-22 -4 -14 32 50 68 86 104 122 F

Do not mix different types of oil.

Replacing the engine oil

Open the engine cover.

The engine oil should be changed the first time after 25 hours
running time. It should then be changed after every 100 hours
of running time.

WARNING! Engine oil can be very hot if it is
drained directly after stopping the engine.

!

Allow the engine to cool somewhat first.

1 Place a container underneath the engine oil drain plug.

Changing the oil filter

WARNING! Engine oil can be very hot if it is
drained directly after stopping the engine.

!

Allow the engine to cool somewhat first.

The oil filter is located on the right side of the engine.

• Open the engine cover.

• Place a suitable vessel to collect the oil in.

• Turn the old oil filter anti-clockwise to remove. If
necessary, use a filter remover.

• Clean the oil filter bracket.

• Lightly lubricate the rubber seal on the new oil filter using
new oil.

• Fit the oil filter by turning clockwise. Turn by hand until the
rubber seal is seated. Now tighten a further half turn.

• Start the engine and let it idle for about 3 minutes. Now
stop it and check for signs of leakage.

• Check the engine oil level and top up if necessary.

2 Remove the dipstick. Remove the drain plug from the

engine.

3 Let the oil run out into the container.

4 Fit the drain plug and tighten it.

5 Change oil filter if necessary.

6 If necessary fill so that the oil comes up to the FULL mark

on the dipstick.

7 Run the engine warm, then check that there is no leakage

from the oil plug.

8 Check the engine oil level and top up if necessary.

IMPORTANT INFORMATION

Used engine oil, antifreeze etc. is a health hazard and must
not be disposed of on the ground or in nature; it should
always be disposed of at a workshop or appropriate
disposal location.

Avoid skin contact; wash with soap and water in case of
spills.

IMPORTANT!

Used engine oil and transmission oil is hazardous to health
and must not be disposed of in the ground or out of doors.

Replaced filters must be handed in to the workshop or other
allotted place for disposal.

Avoid skin contact; wash with soap and water in case of
spills.

Check the hydraulic system oil level

The oil and filter should be changed by an authorised service
representative, as described in the Workshop Manual. Work
on the system entails particular demands on cleanliness and
the system must be vented before the machine is used.

• Fold up the seat.

• Remove the filler cap. The level should be 40-60 mm from
the strainer top.

• Refill as required with fully synthetic 10W/50 API SM oil or
better

36 – English

Lubrication

Check the oil level in the transmission gearboxes

• Use the oil dipstick to check that there is oil in the
transmission.

• The oil level should be between the markings on the
dipstick.

• Refill as required with fully synthetic 10W/50 API SM oil or
better

Lubricating the cables

Remove the cable´s rubber casing when lubricating.

Grease both ends of the cables and move the controls to end
stop positions when lubricating.

Re-attach the rubber covers on the cables after lubrication.

Cables with sheaths will jam if they are not lubricated
regularly. A jammed cable may cause malfunction, such as
the parking braking being applied. If a cable binds, remove
the cable and hang it vertically. Lubricate it with thin engine oil
until the oil begins to escape from the bottom.

A tip: Fill a small plastic bag with oil and tape it so that it seals
against the casing and allow the cable to hang vertically from
the bag overnight. If you do not succeed in lubricating the
cable, it must be replaced.

Throttle and choke cables, lever bearings

• Remove the right side cover on the lever housing (3
screws) and open the engine cover.

• Lubricate the cables’ free ends with the oilcan, even those
by the engine.

• Move the controls to the end points and lubricate again.

Knobs for setting the cutting height

Lubricate front and rear knobs with oil.

Driver seat

Fold up the seat.

Lubricate the lever for longitudinal adjustment with oil.

Lubricate the longitudinal adjustment runners with grease.
Pull the seat back and forth and lubricate on both sides.

Replace the lever housing’s side cover.

Lubricate the parking brake wire

Remove the rubber cover and lubricate the cable with oil.

English – 37

Troubleshooting schedule

Problem Procedure

Engine does not start There is no fuel in the fuel tank

Air in fuel system

Incorrect fuel type

Ignition system inoperative

Serious engine damage

Starter motor does not turn over the engine Battery flat

Poor contact affecting the battery terminal cable connections, ignition
lock, or starter

Power take off (PTO) activated

Air in fuel system

Fuse on or near the battery blown (check 2 off)

Start lock broken

The parking brake is not on

Faulty or improperly adjusted parking brake switch

Faulty starter motor

Engine does not run smoothly Faulty relief valve

Clogged fuel filter

Air filter clogged

Fuel tank vent blocked

Low feed pressure

Loose fuel pressure line (injector pipe)

Faulty fuel injector

Faulty injection pump

Faulty feed pump

Incorrect fuel type

Serious engine damage

Abnormal exhaust smoke

Black smoke Incorrect amount of fuel from injection pump

Faulty fuel injector

Incorrect timing of fuel injection pump

Air filter clogged

Blue smoke Engine oil level too high

Serious engine damage

White smoke Cylinder head gasket damaged

Cylinder head cracked

Engine oil level too high

Engine seems to have no power Air filter clogged

Air in fuel system

Clogged fuel filter

Faulty relief valve

Low feed pressure

Faulty feed pump

Incorrect timing of fuel injection pump

Serious engine damage

38 – English

Troubleshooting schedule

Engine overheats Engine overloaded

Coolant level too low

Air intake or cooling flanges blocked

Fan damaged

Too little or no oil in engine

Incorrect radiator cap

Coolant pump drive belt broken

Battery does not charge One or more battery cells faulty

Poor contact on the battery terminal cable connectors

Defective alternator

Alternator belt broken or slipping

Wires to the alternator broken

Defective battery maintenance

Sulphated battery

Machine vibrates Blades are loose

Damaged universal joint

Engine is loose

The hydraulic pump is loose

Damaged support bearing for PTO shaft

Bevel gear is loose

The engine is not firing on all cylinders

Pulley loose or worn bearing on cutting unit

One or more blades unbalanced, caused by damage or poor
balancing after sharpening

Uneven mowing Blades blunt

Cutting unit skew

Long or wet grass

Grass blockage under hood

Different tyre pressures on right and left sides

Different tyre pressures on pivot wheel

Over-speeding

Engine speed too low

Cutting unit belt slipping

PTO belt slipping

Cutting height too low

English – 39

ELECTRICAL SYSTEM

Numbers correspond to:

1 Switch for the lights

2 Instrument panel

3 Lights

4 Counter

5 Ignition lock

6 Inductive sensor, parking brake

7 Switch for the power outlet

8 Power outlet

9 Electrical connection box

10 Seat switch

11 Main fuse, 125 A

40 – English

Wiring diagram P 520D

ELECTRICAL SYSTEM

English – 41

ELECTRICAL SYSTEM

42 – English

ELECTRICAL SYSTEM

English – 43

ELECTRICAL SYSTEM

44 – English

ELECTRICAL SYSTEM

English – 45

ELECTRICAL SYSTEM

46 – English

Wiring diagram P525 D

ELECTRICAL SYSTEM

English – 47

ELECTRICAL SYSTEM

48 – English

ELECTRICAL SYSTEM

English – 49

ELECTRICAL SYSTEM

50 – English

ELECTRICAL SYSTEM

English – 51

ELECTRICAL SYSTEM

52 – English

Storage

Winter storage

At the end of the season, or if the machine is going to stand
idle for more than 30 days, it should immediately be made
ready for storage. Fuel which is left to stand for long periods
(30 days or more) can leave sticky deposits and interfere with
the engine function.

Fuel stabiliser is an acceptable alternative to avoid tacky
deposits during storage. Add stabiliser to the fuel in the tank
or the storage container. Always use the mixing ratios
indicated by the manufacturer. Run the engine for at least 10
minutes after adding the stabiliser.

WARNING! Never store a machine with fuel
in the tank indoors or in poorly ventilated

!

spaces where fuel vapour can come in
contact with open flames, sparks, or a pilot
light such as in a boiler, hot water tank,
clothes drier, etc. Exercise caution when
handling fuel. It is highly inflammable, and
careless use can cause serious injury and
damage to property. Drain off the fuel in an
approved container outdoors and well clear
of naked flames. Never use petrol for
cleaning purposes. Use degreasing agents
and hot water instead.

Service

Low season is the most suitable time to perform a service or
overhaul of the machine in order to ensure high function
safety during high season.

When ordering spare parts state your machine’s purchase
year, model, type, and serial number.

Always use genuine parts.

An annual check-up by an authorised servicing dealer is a
good way to ensure that your ride-on mower performs at its
best the following season.

To prepare the machine for storage follow these instructions:

1 Carefully clean the machine, especially under the cutting

unit. Touch-up paint damage to avoid rust.

2 Inspect the machine for worn or damaged parts and

tighten loose screws and nuts.

3 Change the engine oil, and take care of the waste oil.

4 Fill fuel tank.

5 Grease all grease nipples, joints and axles.

6 Remove the battery. Clean it, charge it, and store it in a

cool place.

7 Store the machine in a clean and dry place and cover it

over for extra protection.

Guard

There is a cover to protect your machine during storage or
transport. Contact your dealer for a demonstration

English – 53

TECHNICAL DATA

P 520D P 525D

Dimensions

Length without cutting unit, cm/in 208 / 81,9 211 / 83.07

Width without cutting unit, cm/in 111 / 44.1 114 / 44.88

Height, cm/ft 129 / 50,8 133 / 52.4

Unladen weight excluding cutting unit, kg/lb 625 / 1378 665 / 1466

Wheelbase, cm/in 106 / 41.7 106 / 41.7

Tyre dimensions 18 x 8,5 x 8 20x10x10

Air pressure, rear - front, kPa / bar / PSI 150/1,5/22 150/1,5/22

Engine

Brand / Model Kubota D902 Kubota D1105

Nominal engine output, kW (see note 1) 14,5 17,8

Displacement, cm3/cu.in 898 / 54.8 1123 / 68.5

Fuel, minimum octane grade lead-free

Tank volume, litres/USqt 25 / 6.6 25 / 6.6

Oil, API class CD or better SAE 10W/40 SAE 10W/40

Oil volume incl. filter 3,3/3,5 3,3/3,5

Oil volume excl. filter, litres/USqt 3,0/3,2 3,0/3,2

Max.motor speed, r/min 3000 3000

Starting Electric starter Electric starter

Electrical system

Type 12 V, negative earthed 12 V, negative earthed

Battery 12 V, 62 Ah 12 V, 62 Ah

Main fuse, A 125 125

Supply fuse circuit board, A 50 50

Bulbs, halogen 2x12V 20W 2x12V 20W

Cooling system

Cooling system capacity, l/USqt 3,7/3,9 3,7/3,9

Antifreeze ≥ 50% glycol ≥ 50% glycol

Hydraulic System

Max. working pressure, bar / psi 120 / 1740 120 / 1740

Hydraulic tank capacity, l/USqt 8/8,5 8/8,5

Hydraulic system capacity, l/USqt 13/13,7 13/13,7

Transmission

Brand Kanzaki KTM 23 Kanzaki KTM 23

Oil, class API SM, ACEA A3/B4 SAE 10W/50 Synthetic SAE 10W/50 Synthetic

Oil capacity gearbox front, l/USgal 0,9 / 0.24 0,9 / 0.24

Oil capacity gearbox rear, I/USgal 0,9 / 0.24 0,9 / 0.24

Max. hydraulic pressure, bar/psi 275/3989 275/3989

Drive

Forward speed, km/h. 0-15 0-18,5

Reverse speed, km/h 0-12 0-14

min 45 cetane 2.0-4.5 cSt @ 40°C

0.835-0.855 kg/l sulphur<0.2w%

min 45 cetane 2.0-4.5 cSt @ 40°C

0.835-0.855 kg/l sulphur<0.2w%

Note 1: The power rating of the engine indicated is the average net output (at specified rpm) of a typical production engine for the
engine model measured to SAE standard J1349/ISO1585. Mass production engines may differ from this value. Actual power
output for the engine installed on the final machine will depend on the operating speed, environmental conditions and other values.

54 – English

TECHNICAL DATA

Technical data concerning the cutting unit

Cutting unit Combi 132 Combi 155

Cutting width, cm/inch 132 / 52 155 / 61

Cutting heights, 7 positions, mm/inch 25-127 / 0,98-5,0 25-127 / 0,98-5,0

Blade length, mm/inch 490 / 19,3 563 / 22.2

Width, mm 1340 / 52,8 1594 / 62.8

Weight, kg/lb 100/220 131 / 289

Bevel gear oil SAE 80W/90, capacity 0.4 l SAE 80W/90, capacity 0.4 l

Technical specifications for sound and vibration levels

P 520D P 525D

Combi 132 Combi 155 Combi 132 Combi 155

Noise emissions (see note 2)

Sound power level, measured dB (A) 102 105 102 105

Sound power level, guaranteed dB(A) 103 105 103 105

Sound levels (see note 3)

Sound pressure level at the operators ear, dB(A) 88 90 88 89

Vibration levels (see note 4)

Vibration level on the steering wheel, m/s

Vibration level in the seat, m/s

2

2

1,7 1,7 1,7 1,7

0,7 0,7 0,7 0,7

Note 2: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/EC.

Note 3: Noise pressure level according to EN 836. Reported data for noise pressure level has a typical statistical dispersion (standard deviation) of 1.2 dB(A).

Note 4: Vibration level according to EN 836. Reported data for vibration level has a typical statistical dispersion (standard deviation) of 0.2 m/s2 (steering wheel) and

2

(seat).

0.8 m/s

IMPORTANT INFORMATION When the service life of this product has been served and it is no longer used it should be returned
to the dealer or to an applicable station for recycling.

IMPORTANT INFORMATION We reserve the right to change specifications and designs without prior notice so as to implement
improvements.

Note that no legal claims are valid on the basis of information in this manual.

Use only genuine parts for repairs. The warranty is not valid if non genuine parts are used.

EC-declaration of conformity (Applies to Europe only)

Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel.: [phone], hereby declares that Husqvarna P 520D and P 525D from
2012’s serial numbers and onwards (the year is clearly stated in plain text on the rating plate with subsequent serial number),
complies with the requirements of the COUNCIL’S DIRECTIVE:

of May 17, 2006 ”relating to machinery” 2006/42/EC

of December 15, 2004 ”relating to electromagnetic compatibility” 2004/108/EC.

of May 8, 2000 ”relating to the noise emissions in the environment” 2000/14/EC.

The following harmonised standards have been applied: EN ISO 12100-2, EN-836.

Notified body: 0404, SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, has issued reports regarding the
assessment of conformity according to annex VI of the COUNCIL’S DIRECTIVE of May 8, 2000 ”relating to the noise emissions in
the environment” 2000/14/EC.

The certificates have the numbers: 01/901/165 , 01/901/166

Huskvarna 9 April 2012

Claes Losdahl, Development Manager/Garden Products (Authorized representative for Husqvarna AB and responsible for
technical documentation.)

English – 55

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Original instructions

1154837-26

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2012-04-12