Husqvarna PT 26D Instruction manual

Workshop manual
PT26D
English

English-1
Workshop manual for
Husqvarna PT 26D
Contents
Contents ..................................................................1
Introduction ............................................................3
Ledger of changes .................................................4
Safety Instructions .................................................5
General Instructions ............................................5
Special Instructions .............................................5
Risk of sparking ..................................................7
Engine repairs .....................................................7
Environment protection .......................................8
Special Tools ..........................................................9
Hydraulic test equipment ..................................10
Laser tachometer .................................................11
Safety ................................................................11
Measure speed .................................................11
Read the last, highest and lowest values ..........11
Replace the batteries ........................................11
Maintenance .....................................................11
Specifications .......................................................13
Control and setting values ................................15
Tightening Torques ...........................................16
Delivery and Dealer Service ................................17
Delivery Service ................................................17
After the First 25 Hours .....................................17
250-hour service ...............................................17
500 hour service ...............................................18
1000 hour (alternative 2 year) service ..............18
2000 hour service .............................................18
3000 hour service .............................................18
Service Schedule .............................................19
Delivery Procedures ..........................................22
Design and Function ............................................25
General .............................................................25
Serial Number ...................................................27
Engine ...............................................................28
Cooling system .................................................29
Fuel system .......................................................31
Steering .............................................................32
Power transmission ...........................................33
Brakes ...............................................................35
Electrical System ..............................................36
Circuits ..............................................................37
Battery ...............................................................37
Circuit board ......................................................38
Fuses ................................................................39
Built-in test equipment ......................................41
Hydraulic System ..............................................43
General .............................................................44
Gear pump ........................................................44
Axial piston pump ..............................................44
Hydraulic motor .................................................45
Control unit ........................................................45
Radiator ............................................................46
Hydraulic filter ...................................................46
Valve block ....................................................... 47
System components Manuals .......................... 48
Sub-circuit function ........................................... 49
Cutting unit with suspension ............................ 58
Repair Instructions .............................................. 61
Removing and refitting the engine ................... 61
Cooling system ................................................. 64
Lubrication system ........................................... 67
Auxiliary system ............................................... 69
Fuel and intake system .................................... 70
Chassis ................................................................ 73
Steering console .............................................. 75
Dismantling the rear axle ................................. 76
Assembling the rear axle .................................. 77
Replacing bushings for pendulum shaft ........... 77
Replacing the articulated steering bearings ..... 77
Replacing the parking brake pedal ................... 78
Replacing the parking brake lock ..................... 78
Replacing the parking brake lock cable ........... 79
Replacing the parking brake lock ..................... 79
Adjusting the parking brake .............................. 80
Wheel brake ..................................................... 80
Power transmission .......................................... 81
power take-off shaft .......................................... 85
Assembling accessories ................................... 86
Cutting unit with suspension ............................. 87
The Cutting Unit’s Service Position .................. 90
Adjustments cutting unit ................................... 91
Blade drive and bearings ................................. 94
Replacing the cutting unit belt. ......................... 95
Sharpening and balancing the blades .............. 97
Dismantling the BioClip plug ............................ 97
Swivel castor bearing ....................................... 98
Swivel castors .................................................. 98
Electrical system ................................................. 99
Generator ......................................................... 99
Circuit board ..................................................... 99
Switch, fuses .................................................. 101
Safety System ................................................ 101
Lights .............................................................. 103
Starting with a weak battery ........................... 104
Transient protection diode .............................. 105
Hydraulic System .............................................. 107
Hydraulic Hygiene .......................................... 107
Hydraulic Oils ................................................. 107
Fixing Oil Leaks .............................................. 107
Keep the hydraulic oil clean ........................... 108
Working Methods ........................................... 108
Hydraulic system PT26 .................................. 109
Changing hydraulic oil .................................... 109
Replacing hydraulic filter and screens ........... 110
Hydraulic connections and hoses .................. 111
Replacing hydraulic pump
for working hydraulics .................................... 111

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Replacing the hydraulic pump
for the drive system .........................................114
Replacing the flushing valve ...........................115
Replacing valve block transmission ................116
Replacing valve block working hydraulics .......117
Replacing the hydraulic motor ........................118
Replacing the control unit ...............................119
Replacing the lift cylinder ................................120
Replacing the steering cylinder .......................120
Hydraulic pressure for weight transfer ............121
Replacing the solenoid valve ..........................121
Trouble shooting ................................................123
General ...........................................................123
Engine with accessories .................................123
Electrical System ............................................124
Hydraulic System ............................................131
Fuel system .....................................................136
Trouble Shooting Guide ..................................136
Circuit diagram ...................................................145
Circuit board .......................................................157
Hydraulic diagram ..............................................161
Index A ................................................................163

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INTRODUCTION
Introduction
Husqvarna PT26 D is a professional machine intended for professional use and large lawns. It can also be
equipped with accessories for snow removal, sweeping, etc.
This book is intended to be an aid for those who work with servicing Husqvarna PT26 D. We assume that
you have education equivalent to secondary vocational training for vehicle mechanics, occupational sector
machines or cars.
You may work as a mechanic or workshop supervisor at one of Husqvarna’s service workshops or at clients
or in the field as a travelling mechanic.
The book covers model years 2006 to 2008. Following introduced modifying kits, the deviations between
the model years are minor. The main difference is the parking brake lock mechanism. The modifications
have been introduced to include design improvements in:
• Electric system
• The hydraulic pump's drive.
• The drive system’s hydraulic pump.
• Drive of the power take-off shaft for the cutting unit with double V-belts.
•Muffler.
The workshop manual covers the machine including removal and assembly of subcontractor components.
For disassembly / assembly, adjustment and test of subcontractor components, we refer to the manual
published by the respective subcontractor. See “Engine” on page 28 and “System components Manuals”
on page 48. We recommend acquiring these manuals to obtain fully comprehensive service documentation
for the machine.
The book is made up of the following chapters:
• Safety instructions, a selection which is important when carrying out service on the machine.
Additional safety regulations can be found in the Operator’s manual.
• Special tools, tips on tool requirements. Some tools are sold by Husqvarna.
• Specifications, a quick-reference book with data selected for mechanics’ needs.
• Delivery and dealer service, action lists for planned maintenance of the machine.
• Design and function, training aids for those who want to learn how the machine works.
• Repair instructions, work instructions and adjustment instructions where risks of personal injury,
material damage or incorrect assembly are prioritised.
• Trouble shooting, trouble shooting instructions and trouble shooting guide.
• Appendixes, diagrams, etc., which can be used for more than one section of the book.
• Index, keyword register with page referrals.
When the workshop manual is used as a PDF-file with screen presentation, referrals in the text, list of contents
and index are in the form of clickable hypertext links when the indexfinger symbol appears on the screen.

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LEDGER OF CHANGES
Ledger of changes
Enter changes and corrections in the workshop manual into the table below. Changes can be reported by
Husqvarna AB as a service message or equivalent.
Date Page Revision Signature

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SAFETY INSTRUCTIONS
Safety Instructions
General Instructions
This workshop manual is written for personnel with general knowledge about the repair and service of riders.
The workshop where the rider is to be repaired must be equipped with safety equipment in accordance with
local bylaws.
No one may repair the rider unless they have read and understood the content of this workshop manual.
The machine is tested and approved only with the equipment originally provided or recommended by the
manufacturer.
This workshop manual contains the following boxes in relevant places.
Special Instructions
The fuel used in the rider has the following hazardous properties:
• The fluid and its vapour are poisonous.
• Can cause eye and skin irritation.
• Can cause breathing problems.
• Is environmentally hazardous. One litre of diesel fuel can destroy up to 1 million litres of drinking water.
Diesel is less flammable than petrol at normal temperatures, but becomes very combustible if heated to the
flash point. This varies depending on the type of diesel but is normally higher than +50ºC (120ºF).
When using compressed air, do not direct the jet towards the body. Air can penetrate into the blood circula-
tion system, which entails mortal danger.
Use eye protection when working with tensioned springs.
Use hearing protection when test running.
Remember diesel exhaust fumes are carcinogenic.
After test running, do not touch the muffler until it has cooled. Risk of burns. Use protective gloves when
working with the muffler.
The blades are sharp and can cause cuts and gashes. Use protective gloves when handling the blades.
IMPORTANT INFORMATION
This box warns of material damage if the
instructions are not followed.
WARNING!
The warning box warns of the risk
of personal injury if the instructions
are not followed.

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SAFETY INSTRUCTIONS
Use eye protection when working with the cutting unit. The belt tensioning spring can break, fly off, and
could cause personal injury.
Use eye protection when working with the battery with the plugs removed. Be especially careful when
handling battery acid. Acid on the skin can cause serious corrosive injuries. In the event of spillage on the
skin wash immediately with water.
Acid in the eyes can cause blindness; contact a doctor immediately.
Be careful when servicing the battery. Explosive gases form in the battery. 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.
IMPORTANT INFORMATION
Waste oil and old filters shall be handled
as hazardous waste.

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SAFETY INSTRUCTIONS
Risk of sparking
Sparking can occur when working with the
battery and the thick cables in the starter
motor circuit.
This may cause the battery to explode, fire or
eye injuries.
Sparking in the circuit can not occur once the
battery's power connection cable (usually the
black negative cable) has been disconnected.
Avoid sparking and its consequences by:
• Wearing protective glasses.
• Make sure that the fuel cap is fitted and
that no flammable liquids are stored in an
open container.
• Do not work on the starter motor circuit in
the vicinity of spilt fuel.
• Disconnect the battery's power connec-
tion cable (usually the black negative
cable) first and connect it last.
• Exercise care with tools so that short
circuiting does not occur.
• Do not short circuit across the starter
relay's connections to run the starter
motor.
Engine repairs
• Immediately consult a doctor if the skin
comes into contact with fuel, which is
under high pressure.
• The combustible material in some of the
engine’s components (e.g. certain seals)
can be very dangerous if ignited. Never
allow burnt material to come into contact
with skin or eyes.
• Do not turn over the engine by hand with-
out preventing the engine from starting,
which can be done in different ways:
a. Remove the glow plugs, no compres-
sion, engine easier to turn.
b. Loosen one pressure pipe connection
on every diffuser pipe by ½ a turn.
c. Secure the injection pump stop arm in
position for zero supply.
• Allow the machine to cool before taking
any actions in the engine room.
8009-728
Risk of sparking

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SAFETY INSTRUCTIONS
Environment protection
Take care of the environment, there are numerous environmental risks especially when performing mainte-
nance on the machine. This particularly applies when dealing with engine oil, hydraulic fluid, fuel, oil filters,
hydraulic filters and fuel filters. You must be attentive to ensure spillage does not occur when you open a
system that contains oil or fuel.
• Always wipe up spillage. When using cloths, sawdust or oil absorbents, these should be treated as
environmentally hazardous waste. Follow local regulations.
• Choose an area, preferably with a concrete floor, when you handle or store oils and fuel so that you
can clear up any spillage without it penetrating into the ground.
• Avoid spillage, use a funnel and fill up carefully.
• When draining, ensure that a suitably sized container is placed correctly. Remember that the oil does
not always run straight down.
• Transfer the waste oil into a sealed container and hand in for destruction. Remember to follow local
regulations. Generally you can deposit waste oil at workshops or petrol stations that handle waste oil.
• Replaced oil and fuel filters are environmental hazardous waste, handle them as waste oil.
• Do not spill fuel when refuelling. One litre of diesel fuel can, according to the Swedish Rescue Services
Agency, destroy up to one million litres of drinking water. Spilt fuel is a fire risk.
• Wash your hands thoroughly when the job is done.
• Coolant is poisonous and sweet. Ensure that animals do not come into contact with open containers or
pools of fluid.

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SPECIAL TOOLS
Special Tools
The machine is designed so that the number of special tools is kept to a minimum.
The following special tools are used when working on the rider.
Special tools for the engine and transmission are specified in resp. Workshop Manuals.
1 set of torque wrenches 4-100 Nm.
1 torque wrench 200 Nm.
Open ring spanners for tightening hydraulic connections.
17, 19, 22, 27, 32 mm.
Torx screwdriver T-25.
Cross tip screwdriver set Phillips (marking P).
Cross tip screwdriver set Pozidrive (markingPZ).
Metric threads are used on the machine.
Exception, the following components have imperial threads:
• Hydraulic components from:
Sauer-Danfoss.
• Brake.
Special tools
RPM
TOT
MEM
DIGITAL TACHOMETER
8009-853
Laser tachometer 8043-159 Screw types
Phillips
Pozidrive
Torx
8043-161
Open ring spanner adapter for
torque wrench (Bacho)

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SPECIAL TOOLS
Hydraulic test equipment
Manometer
1 x manometer 0-2.5 MPa (0-25 bar)
1 x manometer 0-25 MPa (0-250 bar)
Alternatively, 1 x combination manometer with the above measuring ranges.
The manometers should be equipped with a measuring coupling with appropriate quick coupling with
thread M16x2 and 1 mm manometer hose
Measuring nipple kit
Tightening torque see “Hydraulic hoses, coupling nuts, T-pipe + 5%. Counterhold required.” on page 16.
and “Hydraulic connecting nipples in material + 5%” on page 16..
For measuring point P1: 7/16” UNF-20 in
axial piston pump and M16x2-DKLO for
manometer connection. Intermediate
coupling thread M14x1.5.
For measuring point P2: 9/16” JIC for T-pipe
and M16x2 for manometer connection.
For measuring point P3, P4, P5 Q2: 9/16”
UNF-18 in flushing valve and M16x2-DKLO
for manometer connection. Intermediate
coupling thread M14x1.5.
For measuring point Q1: 9/16” JIC
and steel plug 9/16” JIC inner thread.
8043-240
Nipples for measuring point P1
8043-241
Nipples for measuring point P2
8043-242
Nipples for measuring points P3, P4, Q2
8043-243
Nipples for measuring point P5
IMPORTANT INFORMATION
ENVIRONMENTAL HAZARD, Avoid spill-
age during hydraulic measurements.
Waste oil shall be treated as environmen-
tally hazardous and turned in to the work-
shop or other designated area for disposal.
Avoid skin contact; wash with soap and
water in case of spills.

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SPECIAL TOOLS
Laser tachometer
Safety
• Laser product class 1.
• Exercise care when the laser beam is on.
• Do not look straight at the beam. Do not
aim the beam towards anyone else's
eyes, either people or animals.
• Do not aim the laser beam towards pol-
ished surfaces where the beam can be
reflected into someone’s eyes.
• Do not aim the laser beam towards explosive gases.
• Remember when measuring
• The reflective surface must be smaller than the non-reflective surface.
• If the object to be measured is polished, cover the measurement surface with black tape or paint with
black paint prior to attaching the reflective tape.
• Clean the surface before attaching the tape.
• When measuring at low speed, more accurate measurement values can be obtained if you attach several pieces
of tape equally distributed around the measurement object. Now divide the read measurement value with the
number of pieces of tape to get the correct speed.
Measure speed
1. Move the switch to the RPM position to measure the speed, or TOT to measure the number of revolutions.
2. Attach a small piece of reflective tape (approximately 1 x 1 cm) on the rotating object to be measured.
3. Press and hold down the measurement button on the side of the instrument. Aim the measurement laser beam at
the object and the reflective tape. The display will come on after 1-2 seconds.
4. Hold the measurement button down during the entire measurement. The instrument switches off when the meas-
urement button is released.
Read the last, highest and lowest values
The instrument automatically saves the last, highest and lowest measurement values during a measurement (i.e. as
long as the measurement button is held down). Press and hold down the memory button (MEM) to read the saved val-
ues. Values are shown on the display after 1-2 seconds.
Measuredvalue Indicated by
Press once Last “LA”
Press twice Highest “UP”
Press three times Lowest “dn”
Replace the batteries
When the symbol for a weak battery is shown on the display, the batteries will soon be spent.
1. Open the battery cover by loosening the crosshead screw that holds the cover in position.
2. Remove the old batteries and insert new ones. Use four, 1.5 volt batteries of the type R6 (AA).
3. Make sure the batteries are turned the right way, otherwise damage can be caused to the instrument.
4. Close the battery cover and secure with the screw.
Maintenance
Clean the tachometer using a soft, damp cloth. Never use any form of solvent to clean it. Never dip it into water or
another fluid.
Do not subject the tachometer to direct sunlight, high temperatures, extreme dust or mechanical impact.
Remove the batteries if the instrument is not to be used for a long period of time.
The tachometer may only be opened by accredited technicians.
RPM
TOT
MEM
DIGITAL TACHOMETER
8009-853

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SPECIAL TOOLS

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SPECIFICATIONS
Specifications
Data PT26D Dimensions
Dimensions Length, base machine
2,070 mm / 206.96 cm Width, base machine
1,150 mm / 114.91 cm Height Width, base machine
1,300 mm / 129.84 cm Width, base machine
Operating weight, base machine Width, base machine
610 kg / 609.63 kg Width, base machine
Wheelbase Tyre dimensions 20x10.0-10
Tyre pressure, machine 100 kPa / 1 bar / 14.5 PSI
Tyre pressure, pivot wheel 150 kPa / 1.5 bar / 21.7 PSI
Engine Precombustion chamber diesel,
3-cylinder in-line engine
Brand Perkins
Model 403C-11
Power 26/19.7 hp/kW @ 3000 rpm
Max torque 67 Nm @ 2100 rpm
Displacement 1131 cm3
Idle speed 1650 rpm
Max speed 3000 rpm
Conforms to environment standard EG stage 2 and EPA Tier 2
Fuel min 45 Cetane
2.0 – 4.5 cSt @ 40 °C
0.835 – 0.855 kg/l
Sulphur< 0.2 w%
Tank volume 37.5 liters/9.9 US Gal
Oil Viscosity, see table under
“Changing the Engine Oil”
Class API CH4 or ACEA E5
Oil volume 2.5 litres/2.6 US qt
Oil volume including filter 2.7 litres/2.9 US qt
Starting Electric start
Power take-off shaft
Idle speed / maximum speed 1,320 rpm, 2,400 rpm
Splines dimension 1” Z15

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SPECIFICATIONS
Cooling system Water cooled
Volume approximately 5 litres
Antifreeze fluid BS6580-1992, ASMD3306-89, AS2108-1977
Resistance analogue sensor at 20°C 0.9 - 1 Ohm
Cooling fan power consumption at operating
speed Appr. 12 A
Electrical System
Type 12 V, negative grounded
Battery 12 V, 40 Ah
Alternator 12 V 40 A
Main fuse 125 A Mega VAL
Supply fuse for circuit board 50 A Midi VAL
Fuse Yellow Flat pin 20 A Uni VAL
Fuse Red Flat pin 10 A Uni VAL
Fuse Brown Flat pin 7.5 A Uni VAL
Bulb headlight 12 V H4
Solenoid clutch coil resistance 2 Ohm
Solenoid valve 30 W coil resistance guideline
value 4.8 Ohm
Solenoid valve 26 W coil resistance guideline
value 5.7Ohm
Solenoid valve 20 W coil resistance guideline
value 7.5 Ohm
Main power relay coil resistance 19.5 -20 Ohm
Glow plug resistance (1 pc) 1.0 -1.3 Ohm
Hydraulic System
Max. working pressure 210 bar/3050 PSI
Power steering circuit max. working pressure 120 bar/1740 PSI
Transmission Hydrostatic
Manufacturer and type Pump Danfoss M25 25 cc variable
annular piston
Front Sauer-Danfoss OEMV 160 cc
Rear Sauer-Danfoss OEMV 125 cc
Oil ISO VG 46 cSt
Oil volume, total including hydraulic system 13 litres
Maximum speed
Forwards, high speed 18 km/h
Data PT26D Dimensions

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SPECIFICATIONS
Control and setting values
Induction sensor (sensors) in the safety system; Gap to target 2-3 mm.
Forwards, low speed 13 km/h
Reverse, low speed 13 km/h
Max inclination, all directions 10°
Cutting unit Combi 155
Cutting width 1,550 mm / 61"
Cutting heights 25.4-127 mm / 1"-5"
Blade length 560 mm / 22"
Width 1,610 mm / 5.28 ft
Weight 113 kg / 248 lb
Length machine with unit approximately 2,900 mm / 9.52 ft
Cutting unit Combi 132
Cutting width 1,320 mm / 52"
Cutting heights 25.4-127 mm / 1"-5" Blade length
560 mm / 22" 490 mm / 19.3"
Width 1,340 mm / 52.8"
Weight approximately 100 kg / 13.29kg
Length machine with unit approximately
2,900 mm / 290.17 cm approximately 2,730 mm / 273.10 cm
Noise emissions with unit C155
Measured noise level 104 dB(A)
Guaranteed noise level 105 dB(A)
Noise emissions with unit C132
Measured noise level 103 dB(A)
Guaranteed noise level 104 dB(A)
Data PT26D Dimensions

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SPECIFICATIONS
Tightening Torques
Knife bolts, belt pulleys on the cutting unit 75-80 Nm
Induction sensor (sensors) 30 Nm
Muffler clamping screws 20 Nm
Axle arm lift arm bearing 200 Nm
Screws and nuts, general tightening torque with zinc plated threads + 5%
Spanner size Allen key Thread Tightening Torques Note
8 mm 4 mm M5 6 Nm
10 mm 5 mm M6 10 Nm
-- 3 mm M6 10 Nm Lock/stop screw
13 mm 6 mm M8 24 Nm
-- 4 mm M8 18-20 Nm Lock/stop screw
17 mm 8 mm M10 47 Nm
17 mm - M10 12.9 70 Nm Drive disc on flywheel
18-19 mm 10 mm M12 81 Nm
30 mm - M20 200 Nm Lift bolt
Hydraulic hoses, coupling nuts, T-pipe + 5%. Counterhold required.
Spanner size Thread Tightening Torques Note
17 mm 9/16" ORFS 15 Nm Control unit
19 mm 9/16" JIC 35 Nm
22 mm 3/4" JIC 60 Nm
22 mm 9/16" ORFS 25 Nm Control unit
27 mm 7/8" JIC 85 Nm
Hydraulic connecting nipples in material + 5%
Spanner size Thread Tightening Torques Note
17 mm 7-16"-20 UNF 20 Nm Pump
19 mm 9/16"-18 UNF 25 Nm Aluminium/steel Block/block
27 mm G 3/8" 50 Nm Pump working hydraulics
27 mm G 1/2" 55 Nm Radiator
27 mm 7/8"-14 UNF 55 Nm Steel
32 mm 1.1/16"-12 UNF 60 Nm Aluminium block

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DELIVERY AND DEALER SERVICE
Delivery and Dealer Service
Delivery Service
1. Attach the cutting unit.
2. Adjust the cutting unit so that its rear edge is
about 6-9 mm higher than its front edge.
3. Check the engine coolant level and anti-
freeze.
4. Check that the right amount of oil is in the
engine, hydraulic system and cutting unit’s
angle gear.
5. Check and adjust the air pressure in the tyres
100 kPa / 1 bar / 14.5 PSI.
6. Connect the battery.
7. Fill with fuel and start the engine.
8. Check that the machine does not move in
neutral.
9. Check:
• Driving forwards.
• Reversing.
• Engaging the blades.
• Safety switch in the seat.
• Inductive sensor for lifting device.
• Inductive sensor for hydrostat pedals.
10. Check the engine speed.
11. Check the fastening bolts on the muffler.
12. Check that no leakage occurs (coolant,
engine or hydraulic oil) after test running
13. Inform the customer about:
14. The need and advantages of following the
service schedule.
15. The need and advantages of leaving the
machine for service every 250 hours.
16. The effects of service and maintaining a serv-
ice journal on the machine’s resale value.
17. Application areas for Mulching.
18. Fill in the sales papers, etc.
After the First 25 Hours
• Replace the hydraulic oil filter.
• Change the engine oil and filter.
• Check the tension and condition of the belts
(generator and water pump belt, power-take-
off belts, cutting unit belt).
• Check the muffler screws and the wheel nuts.
• Check the muffler screws and wheel nuts.
• Check the hoses and couplings as well as oil
and fluid levels.
• Check for any leakage of water and oil.
• Adjust the cutting unit so that its rear edge is
about 6-9 mm higher than its front edge.
• Retighten and check the lock nuts (4 pcs) on
the centre connection on the hydraulic oil tank.
250-hour service
1. Change the engine oil and filter.
2. Replace the hydraulic oil filter and check the
oil level, fill up if necessary.
3. Replace the air filter, clean the cyclone
cleaner and empty the particle trap.
4. Check the tension and condition of the belts
(generator and water pump belt, power-take-
off belts, cutting unit belt).
5. Check the condition of the battery.
6. Check the oil level in the bevel gear, fill up if
necessary.
7. Check the wheel nuts.
8. Lubricate the brake cables and adjust as
necessary.
9. Check the safety functions.
10. Clean the cutting unit, under the belt covers
and under the cutting unit.
11. Clean the radiator and radiator grille with
compressed air.
12. Lubricate according to the lubrication chart.
13. Adjust the cutting unit so that its rear edge is
about 6-9 mm higher than its front edge.
14. Check the level, concentration and cooling
system’s hoses.

English
-
18
DELIVERY AND DEALER SERVICE
500 hour service
1. Perform the 250-hour service.
2. Change the belts (power take-off belts, cutting
unit belt).
3. Check the condition of the hydraulic hoses.
4. Replace the fuel filter and check the hoses.
5. Change the oil in the bevel gear.
1000 hour (alternative 2 year) service
1. Perform the 500-hour service.
2. Replace the hydraulic oil.
3. Below are service actions according to the
Perkins workshop manual:
• Replace the cooler fluid.
• Adjust the valves and check the engine
speed.
• Replace the alternator and water pump belt.
2000 hour service
1. Perform the 1,000 hour service.
2. Below are service actions according to the
Perkins workshop manual:
• Replace the crankcase ventilation diaphragm.
• Check the starter.
• Check the engine mountings.
• Check the alternator.
3000 hour service
1. Perform the 1000 hour service.
2. Below are service actions according to the
Perkins workshop manual:
• Check the fuel injection system, replace the
injector if necessary.
• Check the water pump.

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DELIVERY AND DEALER SERVICE
Service Schedule
The following is a list of maintenance procedures
that must be performed on the rider. Most of the
points that are not described in this workshop
manual are found in the operator’s manual.
= Described in this workshop manual.
= Not described in this workshop manual or the
operator’s manual.
= Described in the operator’s manual.
Maintenance Page Daily main-
tenance Weekly main-
tenance
Maintenance interval hours
Check for fuel and oil leaks -
Check the safety switch, seat 101 
Check the safety switch, pedal system 101 
Check the engine oil level (at every
refuelling) 67 
Check the hydraulic oil level 109 
Check the coolant level 29 
Check / clean the engine’s radiator air
intake, the radiator screen and radiators 65  
Check fastenings (screws, nuts, etc.) -
Start the engine and blades, listen for
unusual sounds -
Clean under the cutting unit and belt
covers - 
Check for damage -
Check the air pressure in the tyres
(100 kPa) 91 
Clean thoroughly around the engine -
Clean thoroughly around the
transmission -
Lubricate according to the lubrication
chart3) -
Clean the air filter and empty the
particle trap 72 
Check the blades 96 
Change the engine oil and filter1) 67 
Replace hydraulic oil filter 4) and
check the oil level 111 
Check the tension and condition of
the belts (alternator belt, power take-
off belts, cutting unit belt)
69
84
95

before after
500 1000 2000 3000250