Husqvarna P 524 Instruction manual

Workshop manual
P524
English

English – 1
Workshop Manual
P524
Contents
1 Introduction and safety regulations ............... 2
1.1 General ..........................................................................2
1.2 Safety .............................................................................2
1.3 Target group ...................................................................2
1.4 Revisions ........................................................................2
1.5 Tools ...............................................................................2
1.6 General directions ..........................................................3
1.7 Special directions ...........................................................3
1.8 Risk of sparks .................................................................3
1.9 Symbols on the machine ................................................4
2 Delivery and service ......................................... 5
2.1 Service schedule ............................................................5
2.2 Assembly and control ....................................................7
2.3 Test running ....................................................................8
2.4 Final inspection ..............................................................8
3 Service tools ..................................................... 9
3.1 Laser tachometer .........................................................10
3.2 Screw fasteners ...........................................................11
4 Design and function ....................................... 12
4.1 Serial number ...............................................................12
4.2 Engine ..........................................................................13
4.3 Steering ........................................................................13
4.4 Drive .............................................................................13
4.5 Bypass valves ..............................................................14
4.6 Cutting deck .................................................................15
5 Repair instructions ......................................... 16
5.1 Chassis ........................................................................16
5.1.1 Throttle and choke cables ...................................16
5.1.2 Driver’s seat ........................................................18
5.1.3 Brake cable .........................................................19
5.1.4 Wheel hub ...........................................................21
5.1.5 Link stay .............................................................22
5.1.6 Changing joint bearing in articulated unit ............24
5.2 Propulsion ....................................................................29
5.2.1 Dismantling the engine cover .............................29
5.2.2 Engine .................................................................30
5.2.3 Solenoid clutch ...................................................33
5.2.4 Transmission oil change .....................................34
5.2.5 Hydraulic oil change ..........................................34
5.2.6 Replacing the engine oil lter ..............................35
5.2.7 Changing engine oil ............................................35
5.2.8 Replacing the engine air lter .............................36
5.2.9 Hydrostatic cable ................................................37
5.2.10 Wheel speed .....................................................39
5.3 Electrical system ..........................................................42
5.3.1 Electrical system .................................................42
5.3.2 Circuit boards ......................................................43
5.3.3 Battery ................................................................44
5.3.4 Fuses ..................................................................44
5.3.5 Safety system .....................................................45
5.3.6 Replacing the light bulbs .....................................45
5.3.7 Ignition switch .....................................................46
5.3.8 Hour meter ..........................................................46
5.3.9 PTO button .........................................................47
5.3.10 12V switch ........................................................47
5.3.11 12V socket ........................................................47
5.4 Fuel system ..................................................................48
5.4.1 Fuel tank .............................................................48
5.4.2 Replacing the fuel lter .......................................49
5.5 Cooling system .............................................................50
5.5.1 Changing the oil cooler .......................................50
5.5.2 Changing thermostat unit ....................................51
5.6 Hydraulic system ..........................................................52
5.6.1 Hydraulic hygiene ...............................................52
5.6.2 Component locations ..........................................54
5.6.3 Filter holder .........................................................55
5.6.4 Changing hydraulic lter .....................................55
5.6.5 Hydraulic tank .....................................................56
5.6.6 Changing the valve block ....................................58
5.6.7 Rear transmission ...............................................59
5.6.8 Front transmission ..............................................63
5.6.9 Hydraulic pump ...................................................66
5.6.10 Replacing pump belt .........................................69
5.6.11 Changing the PTO belt .....................................71
5.6.12 Lift cylinder ........................................................73
5.6.13 Steering cylinder ...............................................74
5.6.14 Power steering ..................................................75
5.7 Cutting system .............................................................76
5.7.1 Tool frame ...........................................................76
5.7.2 Cutting deck ........................................................78
5.7.3 Changing the belt on the cutting deck ................80
5.7.4 Setting parallelism and cutting height .................81
5.7.5 Adjusting the parallelism of the cutting deck .......81
5.7.6 Adjusting the cutting height range .......................82
5.7.7 Checking and adjusting ground pressure ...........82
5.7.8 Changing height adjustment cable .....................83
5.7.9 BioClip plug .........................................................84
6 Specications ................................................. 85
6.1 Technical data .............................................................85
6.1.1 Technical data - Sound and vibration levels .......85
6.1.2 Technical data - Fluids ........................................85
6.1.3 Technical data - Cutting deck ..............................85
6.1.4 Technical data - Dimensions ..............................86
6.1.5 Technical data - P524 .........................................87
7 Appendices and schedules ........................... 89
7.1 Wiring diagram .............................................................89
7.2 Hydraulic diagram ........................................................90
7.3 Troubleshooting schedule ............................................91
7.4 Belt position diagram ....................................................95
7.5 Lubrication ....................................................................96

2 – English
1 Introduction and safety regulations
1.1 General
This Workshop Manual provides a comprehensive
description of how to troubleshoot, repair and test
the ride-on mower. A description of different safety
steps that must be taken during repair work is also
given.
1.2 Safety
Note: The section dealing with safety must be
read and understood by all those carrying out
repair work or service on the ride-on mower.
Warning symbols can be found in this Workshop
Manual and on the ride-on mower. Refer to “1.9
Symbols on the machine” on page 4. A new warning
symbol decal must be applied as soon as possible if
a warning symbol on the machine has been
damaged or is missing so that the greatest level of
safety can be maintained when using the ride-on
mower.
1.3 Target group
This workshop manual is written for personnel with a
general knowledge of repairing and servicing ride-on
mowers.
The Workshop Manual must be read and understood
by personnel who will carry out repair work and
service on the ride-on mower. The Manual is also
suitable for use when training new employees.
Introduction and safety regulations
1.4 Revisions
Any modications to the ride-on mower will be
gradually introduced into ongoing production. As
these modications affect service and/or spare
parts, specic service information will be sent out on
each occasion. This means that in time this
Workshop Manual will become out of date. In order
to prevent this, the manual should be read together
with all service messages concerning the ride-on
mower in question.
1.5 Tools
Special tools are required for some stages. All
service tools are listed in the Workshop Manual.
Usage can be seen in each section. For more
information, refer to Chapter “3 Service tools” on
page 9.
Always use original:
• Spare parts
• Service tools
• Accessories

English – 3
1.6 General directions
The workshop where the ride-on mower is to be
repaired must be equipped with safety devices in
accordance with local regulations.
No one may repair the ride-on mower without rst
reading and understanding the content of this
workshop manual.
This Workshop Manual contains the following
warning boxes in relevant places.
NB!
This box warns of material damage if the
instructions are not followed.
1.7 Special directions
The fuel used in the ride-on mower has the following
hazardous properties:
• The uid and its vapor are toxic.
• Can cause eye and skin irritation.
• Can cause breathing problems.
• Is highly ammable.
When using compressed air, do not direct the air jet
toward your body. Air can penetrate into the blood
circulation, which may be lethal.
Use eye protection when working on tensioned
springs.
Use ear protection during testing.
During testing, do not touch the mufer before it has
cooled down. Risk of burns. This is especially true if
the ride-on mower is equipped with a catalytic
converter. The lining on and in the catalytic
converter element is toxic for consumption. Use
protective gloves when working on the catalytic
converter/mufer.
The blades are sharp and can give cut injuries. Use
protective gloves when handling the blades.
Use eye protection when working on the cutting
deck. The belt tensioning spring can break, y off
and could cause personal injury.
Be careful when servicing the battery. Explosive
gases are formed in the battery. Never carry out
service on the battery while smoking or in the vicinity
of naked ames or sparks. The battery can then
explode and cause serious injury.
1.8 Risk of sparks
Sparks can occur when working on the battery and
the thick cables.
This can cause battery explosions, re or eye injuries.
Sparks can not arise in the circuit once the battery
ground frame cable (normally black negative cable) is
disconnected.
Avoid sparks and their consequences by:
• Using protective goggles.
• Making sure the tank cap is tted and there are
no ammable liquids stored in open vessels.
• Not working with the starter motor circuit in the
vicinity of spill fuel.
• Disconnecting the battery's ground cable
(normally a black negative cable) rst and
connecting it last.
• Taking care not to cause short circuits with tools.
NB!
Waste oil and old lters shall be handled as
hazardous waste.
Introduction and safety regulations
WARNING!
The warning box warns of the risk of
personal injury if the instructions
are not followed.

4 – English
1.9 Symbols on the machine
This product complies with
applicable EC directives.
Fast
Slow
Stop the engine.
Choke
Fuel
Oil level
Cutting height
Back
Forward
Ignition
Parking brake
Noise emissions to surroundings
in accordance with the European
Community directive. Machine
emissions are set out in the
chapter Technical data and on the
decal.
Clutch in
Clutch out
Warning for rotating parts. Mind
your hands and feet.
Rotating blades Keep hands and
feet away from under the hood
when the engine is running
Never drive across a slope.
Never use the ride-on mower if
persons, especially children or
pets, are in the immediate vicinity.
Never carry passengers on the
ride-on mower or on its
attachments
Drive very slowly without the
cutting deck
Brake
Switch off the engine and remove
the ignition cable before carrying
out repairs or maintenance
Check the engine oil level
Check the transmission oil level
Introduction and safety regulations

English – 5
2 Delivery and service
2.1 Service schedule
Key
The following is a list of maintenance procedures that must be performed on the ride-on mower. Most points
not described in this workshop manual can be found in the operator’s manual.
Not described in this workshop manual or operator's manual.
n Described in this workshop manual.
m Described in the operator’s manual.
Care Chapter Daily
mainte-
nance
before
Daily
mainte-
nance
after
After
the
rst 25
hours
Weekly1)
mainte-
nance
At
least
once
a year
Maintenance
interval in hours
40 100 200 400
Clean under the cutting deck
Clean and lubricate the belt
tensioner bearings.
Clean around the mufer
Clean thoroughly around the engine
Clean thoroughly around the
transmission m
Clean the frame tunnel
Clean the air lter m m m
Clean the cooling ns on the engine
and hydrostatic transmission
Clean the combustion chamber
Check the engine cooling air intake m
Check the fuel pump’s air lter
Check/adjust the parking brake 5.1.3 n
Check the safety system 5.3.5 n
Check nuts and bolts
Check for fuel and oil leakages
Check the oil level in the
transmission and top up if
necessary (SAE 10W/50)
2.2 n
Check the cutting deck bolts for the
belt pulleys, blades, etc.
Check that the hydraulic hoses and
couplings are clean and undam-
aged.
Check/adjust front and rear wheel
rotation speed
5.2.10 n n n n
Check the engine's maximum
speed (3,0000rpm).
3.1 n
Check the air pressure in the tires
100 kPa / 1.0 bar / 14.5 PSI m m m
Check the fuel hose. Replace if
necessary.
Check that the pump belt tension
is correct
Check that the RTO belt tension is
correct
Delivery and service

6 – English
Care Chap-
ter
Daily
mainte-
nance
before
Daily
mainte-
nance
after
After
the rst
25
hours
Weekly1)
mainte-
nance
At
least
once a
year
Maintenance
interval in hours
40 100 200 400
Check the V-belts 5.7.3 n n
Check joint bearing in articulated
unit
5.1.6 n
Check/adjust the cutting height
setting
5.7.4 n
Check/adjust the choke wire 5.1.1 n
Check/adjust the throttle cable 5.1.1 n
Check that the spark plug is clean
and properly gapped. m
Check the condition of all pulleys
on the machine.
Check joint bearing wear in articu-
lated unit
Lubricate according to the lubrica-
tion chart
7.5 n n n
Lubricate the articulated bearing 5.1.6 n n
Lubricate the driver seat
Lubricate all cables
Lubricate links in the cutting deck
Lubricate the hydrostatic cable with
linkage
Lubricate the parking brake cable
Lubricate the throttle
Lubricate the choke control
Change oil in the transmission 5.2.4 n n
Change hydraulic oil (SAE
10W/50)
5.2.5 n
Change the engine’s oil lter 5.2.6 n n
Replace the suction lter in the
hydraulic tank
Change hydraulic lter 5.6.5 n n
Change engine oil (SAE 10W/40) 5.2.7 n n n
Change the fuel lter 5.4.2 n n n
Change spark plug m m
Change air lter 5.2.8 n n n
Replace the cutters in the cutting
deck m
Replace the pump belt 5.6.13 n
Replace the cutting deck drive belt 5.7.3 n
Replace the cutting deck blade
belts
5.7.3 n
WARNING! Service procedures must not be conducted on the engine or cutting deck unless:
• The engine has been stopped.
• The parking brake is engaged.
• The ignition key has been removed.
Delivery and service
1)The ride-on mower should be lubricated twice a week when used on a daily basis.

English – 7
Delivery and service
Check the transmission oil level
Work on the system entails particular demands on
cleanliness and the system must be vented before
the machine is used. For more information, refer to
section “5.6.1 Hydraulic hygiene” on page 52.
The hydraulic oil ller cap is under the operator’s
seat.
1. Fold up the seat.
2. Remove the ller cap. The oil level must be
40 to 60 mm from the top edge of the strainer.
3. Rell if needed with a fully synthetic 10W/50 API
SM oil or better
2.2 Assembly and control
Battery
The machine is equipped with a sealed
maintenance-free battery. It is the responsibility of
the dealer to t the battery.
• Hold the bolts so that the terminals are not put
under strain.
Checking the engine’s oil level.
Check the oil level in the engine when the ride-on
mower stands horizontal with the engine switched
off.
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.
Use an engine oil with a viscosity indicated in the
chart, class SF-SJ. The engine takes 1.8 liters
(1.9 US qt) of oil excl. the oil lter.
NB!
Check and top up oil also after the test drive.
Checking the tire pressures
Check that all the wheels have the same tire
pressure. Different pressures will make the blades
cut the grass at different heights.
The tire pressure must be 100 kPa / 1.0 bar /
14.5 PSI.
Checking and adjusting the cutting deck
Carried out after tire pressures checked. See section
“5.7.5 Setting parallelism and cutting height” on
page 81.
-20°C -10°C 0°C 10°C 20°C 30°C 40°C
-4°F 14°F 32°F 50°F 68°F 86°F 104°F

8 – English
2.3 Test running
Fueling
Fill with gasoline. The engine should be run on
95-octane unleaded gasoline (not mixed with oil). It
can be benecial to use environmentally adapted
alkylate gasoline.
Starting the Engine
Make sure the machine is in neutral position and
stationary on a level surface with the parking brake
released.
• Check the operation of the parking brake.
• Check driving forwards (1) and in reverse (2).
• Check that the starter does not work when one
of the hydrostatic pedals is pressed.
• Make sure the starter motor does not work when
the parking brake is not applied.
2
1
2
1
WARNING!
Gasoline is highly ammable.
Take care and ll up outdoors.
WARNING!
Never run the engine indoors, in
conned or badly ventilated spaces.
Engine exhaust contains toxic carbon
monoxide.
• Make sure the starter motor does not work when
the cutting deck drive switch, the PTO button, is
depressed.
• Check that the engine stops if the driver stands
from the seat when one of the hydrostatic pedals
is pressed.
• Check that the cutting deck works and that no
unusual sounds are heard.
• The cutting height can be adjusted to 6 different
positions with the lever (1).
• Make sure the cutting deck is in working
order, (2).
2
1
Speed control
Check the max engine speed with a Husqvarna
original tachometer. Make sure the max speed is
regulated to 3000 ± 75 rpm.
2.4 Final inspection
• Check the oil level in the hydraulic tank and top
up if necessary.
• Make sure there are no leaks, also engine oil
and fuel.
• Clean the machine as necessary, wipe away any
oil spill, ngerprints (steering wheel and
controls), dust and the like.
Delivery and service

English – 9
3 Service tools
The following special tools are used when working on the rider: Special tools for engine and transmission can
be found in the respective workshop manual.
Service tools
1Optical tachometer 502 28 80-01
2Tool for measuring wheel
speed
578 92 62-01
3Fork counterhold - belt
pulley
506 89 92-01
4Puller - spring N/A
5Puller - belt pulley 506 66 48-01
6Battery charger (EU) 580 35 52-01
Battery charger (UK) 580 35 52-02
7Tachometer 502 71 14-01
12
3
4
5
6
7

10 – English
Measure rpm
1. Put the switch to RPM position for measuring
rpm or TOT for measuring the number of
revolutions.
2. Put a small piece of reective tape (approx
1x1 cm) on the rotating object to be measured.
3. Hold the laser tachometer at right angles
max 10 cm from the tape.
4. Press in and hold the measuring button on the
side of the instrument. Aim the measuring beam
at the object and the reective tape. The display
will light up after 1-2 seconds.
5. Hold in the measuring button during the whole
measuring procedure. The instrument is turned
off when the measuring button is released.
Read the last, highest and lowest values
The instrument will automatically save the last,
highest and lowest readings for a measurement (i.e.
as long as the measuring button is depressed).
Press in and hold the memory button (MEM) in order
to see the saved readings. The reading is shown on
the display after 1-2 seconds. Reading indicated
with:
• Press once Last ”LA”.
• Press twice Highest ”UP”.
• Press three times Lowest ”dn”.
Change battery in laser tachometer
The batteries are beginning to be depleted when the
low battery symbol is displayed.
1. Open the battery cover by loosening the
recessed head screw holding it.
2. Remove the old batteries and replace them with
new ones. Use 4x 1.5 volt R6 (AA) batteries.
3. Make sure to insert the batteries the right way
round or the instrument can be damaged.
4. Close the battery cover and lock it with the
screw.
Care
Clean the tachometer with a soft, damp rag. Never
use any form of solvent for cleaning.
Never dip into water or other liquid.
Do not expose the tachometer to direct sunlight, high
temperature, excessive amounts of dust or
mechanical impact.
Remove the batteries if the instrument is not being
used for long periods.
The tachometer may only be opened by an
authorized repair technician.
Max 10 cm
2
1
3
1. Wheel speed tool
2. Reective tape
3. Laser meter
Service tools
Safety during use:
• Class 1 laser product.
• Take care whenever the laser beam is on. Do
not look straight into the beam. Do not aim the
beam towards anyone else's eyes, either
people or animals.
• Do not aim the laser beam towards polished
surfaces where the beam can be reected into
someone's eyes.
• Do not aim the laser beam at explosive gases.
Remember When Measuring:
• The reecting surface must be smaller than the
non-reecting surface.
• If the object to be measured is shiny, cover the
measured surface with black tape or paint it
black before the reective tape is afxed.
• Clean the surface before afxing the tape.
• When measuring at low speed, a more precise
reading can be obtained by fastening more
pieces of tape evenly distributed around the
object being measured. Then divide the read
value with the number of tape pieces to obtain
the real rpm.
3.1 Laser tachometer
Max 10 cm

English – 11
8095-309
1
2
3
3.2 Screw fasteners
Metric threads are used on the machine.
Some bolt fasteners are locked with screws treated
with Eslok® Nylon 180°. The screw threads have a
red coating. These screws can be retted three
times before having to be replaced.
Always torque tighten screw unions to the specied
torque table unless specied otherwise in the text.
Spanner
Size
Allen Key Thread Tightening
torques
8 mm 4 mm M5 52 ft/lb (6 Nm)
10 mm 5 mm M6 52 ft/lb (10 Nm)
- - 3 mm M6 52 ft/lb (10 Nm)
13 mm 6 mm M8 52 ft/lb (24 Nm)
- - 4 mm M8 18 - 20 Nm
17 mm 8 mm M10 52 ft/lb (47 Nm)
17 mm - - M10 12.9 52 ft/lb (70 Nm)
18-19 mm 10 mm M12 52 ft/lb (81 Nm)
24 mm - - M16 80 ft/lb (110 Nm)
30 mm - - M20 52 ft/lb (200 Nm)
32 mm - - - - Hydraulic
couplings, see
separate chapter.
Certain unions are screwed into the goods with a
through screw and a locknut. The thread in the
goods is intended to take the effective torque and
the locknut is to secure the union during use.
Therefore, the main part of the torque - screw in the
goods - should always be tightened rst and then
secured with the locknut, which is tightened with
less torque. If the locknut is tightened with too high a
torque, the screw in the goods thread will be
unstressed and the bolt fastening will come loose
during use.
Hydraulic Couplings
When assembling hydraulic hoses and pipes, rst
tighten their cap nuts by hand to stop. Then tighten a
further 1½ ats of the wrench grip. This corresponds
to an approximate 90° turn.
2
1
8095-299
1. Screw
2. Goods thread
3. Locknut
1. Starting point
2. Torqued position = 1.5 ats = 90° angle
Service tools

12 – English
4 Design and function
4.1 Serial number
Machine's serial number (1)
The machine's serial number can be found on the
plate attached to the right side of the machine's
frame member. Stated on the plate, from the top are:
• Machine type designation.
• Manufacturer type number
• Machine's serial number
• Weight
Please provide the type designation and serial
number when ordering spare parts.
Engine serial number (2)
The engine's serial number is given on a bar code
decal. Located on the engine cover.
The plate gives:
• Engine serial number (E/NO).
• Code.
Please provide these when ordering parts.
Transmission serial number (3)
The transmission serial number is on a barcode
decal located on the transmission.
• The type designation is stated above the bar
code and starts with the letter "K".
• The serial number is stated above the bar code
and has the prex "s/n".
• The manufacturer’s type number is stated under
the bar code and has the prex "p/n".
Please provide the type designation and serial
number when ordering spare parts.
Hydraulic pump (4)
The hydraulic pump serial number is on a barcode
decal located on the pump.
• The type designation is stated above the bar
code and starts with the letter "K".
• The serial number is stated above the bar code
and has the prex "s/n".
• The manufacturer’s type number is stated under
the bar code and has the prex "p/n".
Please provide the type designation and serial
number when ordering spare parts.
Design and Function
2
3
4
3
1

English – 13
4.2 Engine
The machine has a twin-cylinder, overhead valve
engine with pressure lubrication and separate oil
lter.
It is important that only original spare parts are
used to repair the engine. If other parts are used,
the guarantee is invalidated.
Major engine repairs are not described in the
workshop manual. This information can be found
in the engine manufacturer's own manuals,
which include detailed information about engine
adjustments and repairs. Manuals can be ordered
from an authorized servicing dealer or downloaded
from the engine manufacturer's website. Specify the
engine's serial number when ordering the manual.
4.3 Steering
All ride-on mowers in the P500 series have
articulated steering. The machines are equipped
with hydraulic power steering. Steering forces from
the steering wheel are transferred to the rear
carriage via a hydraulic cylinder. This makes the
ride-on mower easy and precise to steer.
The control unit is connected directly to the steering
wheel and runs the steering cylinder, which is
connected between the chassis and the rear axle, in
and out. If the engine stops, it is still possible to
steer, but the wheel is heavy to turn.
The hydraulic tank is common to all hydraulic
functions on the machine.
4.4 Drive
The machine is equipped with hydrostatic
transmission which gives the driver complete driving
control. Speed is controlled variably using the pedals
forward or back.
The hydraulic pump and transmission are three
separate units.
Front and rear transmission
Front and rear transmission comprise a hydraulic
motor and a gearbox with differential and output
shafts. The hydraulic motor and the gearbox are
separated from each other and have separate oil
sources.
The hydraulic pressure must be released in order for
the machine to be moved when the engine is shutoff.
Design and Function

14 – English
Design and Function
4.5 Bypass valves
The hydraulic motors must be bypassed in order for
the ride-on mower to be moved when the engine is
shut off.
The motors can be bypassed using the bypass
valve. The machine will not move if an attempt is
made to drive while the valve is open. The drive on
the axle is disengaged when one of the valves is
open.
The rear bypass valve is open if the machine can
not be driven forwards. The front bypass valve is
open if it can not be driven in reverse.
P524 has 2 valves, one bypass valve for the front
axle and one for the rear axle. The bypass valve
is opened and closed in the same way on the front
and rear axles.
1. The valve is opened by loosening the locking
nut (1) 1/4-1/2 turn counterclockwise and then
the bypass valve (2) two turns.
2. The valve is closed by tightening the valve nut
(2) 8-10 Nm.
3. Tighten the locking nut (1) 30-35 Nm.
Rear axle bypass valve
Front axle bypass valve
1
2
Tools Dimension
Combination wrench 8 mm
Combination wrench 17 mm

English – 15
Combi 112 and Combi 122
This machine is supplied with the Combi 112 or
Combi 122 cutting deck.
.
Hydraulic deck lift.
The cutting deck is raised and lowered with a
hydraulic cylinder. This acts on a rotating shaft.
When the shaft is rotated, the chain attached to a
segment inside the end of the shaft will raise or
lower the equipment frame.
Pushing up the PTO button acts on a solenoid clutch
that enables the blades to rotate. Blade rotation is
shut down by just pressing the PTO button.
The cutting height is adjusted using the lever that is
attached to the shaft with a joint and a spring. The
lever can be put in 6 xed positions plus one service
position.
See “5.7.7 Adjusting the cutting height range” on
page 82 for adjusting the cutting height.
4.6 Cutting deck
The machine can be tted with the Combi 112 and
Combi 122 cutting decks.
The Combi-unit, equipped with a BioClip-plug, nely
chops the cuttings to fertilizer. 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 nely chopping them.
Design and Function

16 – English
Chassis
5 Repair instructions
Tools Dimension
Combination wrench 10 mm
Torx T30
Snipe nose pliers
Wire cutters
5.1 Chassis
5.1.1 Throttle and choke cables
Checking the throttle cable
Make sure the engine responds to the throttle and
that the correct engine speed is attained at full
throttle. For further information, see “6.1.4 Technical
data - Dimensions” on page 86.
Adjusting the Throttle Cable
If adjustment is needed, do the following on the
bottom cable.
1. Loosen the clamping screw for the cable’s outer
casing and slide the throttle control to the full
throttle position.
2. Make sure the throttle cable is attached to the
correct attaching hole in the lower lever arm.
3. Press the outer sheath of the throttle cable to
the far left and tighten the clamping screw.
Checking the choke cable
Make sure the engine responds to the throttle and
that the correct engine speed is attained at full
throttle. For further information, see “6.1.4 Technical
data - Dimensions” on page 86.
Adjusting the choke cable
If adjustment is needed, do the following on the top
cable.
1. Loosen the clamping screw for the cable’s outer
casing and slide the throttle control to the full
throttle position.
2. Make sure the throttle cable is attached to the
correct attaching hole in the upper lever arm.
3. Press the outer sheath of the throttle cable to the
far left and tighten the clamping screw.

English – 17
5. Pull the throttle or choke control down through
the opening.
6. Cut the front tie bands.
7. Loosen the wire from the control.
8. Cut the rear tie bands.
9. Loosen the throttle cable from the fastening
hole in the lower lever arm or loosen the choke
cable from the fastening hole in the upper lever
arm.
Dismantling the throttle and choke
cables
1. Remove the side cover.
2. Loosen the circuit board by removing the nut.
Move the circuit board out of the way.
3. Remove the knobs from the throttle and choke
controls.
4. Loosen the control console by removing the
screws.
Assembling
1. Assemble in reverse order.
2. Must be adjusted and checked after tting.
Chassis

18 – English
5.1.2 Driver’s seat
Tools Dimension
Combination wrench 13 mm
Dismantling
1. Fold the driver's seat up.
2. Loosen the seat switch by turning the connector
counterclockwise.
3. Use a combination wrench to remove the 4 bolts
from the adjustable seat mounting.
4. Lift off the driver's seat.
Assembling
Assemble in reverse order.
Chassis

English – 19
Tools Dimension
Combination wrench 13 mm
Torx T 30
Snipe nose pliers
Torque wrench
5.1.3 Brake cable
Checking the brake cable
Check that the parking brake is adjusted correctly
by placing the machine on a slope.
• Apply the parking brake.
The parking brake must be adjusted if the machine
is not stationary.
If the machine does not stay still once the parking
brake has been adjusted, the parking brake cable
must be replaced.
Replacing brake cable
1. Remove the cover over the frame tunnel.
2. Remove the left wing cover.
3. Remove the rubber cover from the brake cable.
4. Remove the E-clip.
5. Pull back the rubber protection so that the cable
can pass through the bracket opening.
6. Loosen the recoil spring from the pedal arm.
7. Make a note of how the brake cable is routed.
8. Pull back the rubber protection so that the cable
can pass through the bracket opening.
9. Loosen the recoil spring going to the brake arm.
10. Remove the cable from the brake lever arm.
Assembling
Assemble in reverse order. The parking brake cable
must be checked and possible adjusted once tted.
Chassis