Husqvarna ProFlex 21 User Manual

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Rider ProFlex 21
Operator´s manual
Please read these instructions carefully and make sure you understand them before using the machine.
101 91 36-26
Operator’s Manual for
Rider ProFlex 21
Introduction ......................................................... 2
Driving and transport on public roads ..............2
Towing.............................................................. 2
Use...................................................................2
Serial number...................................................3
Explanation of symbols......................................4
Safety instructions..............................................5
General use .....................................................5
Driving on slopes .............................................6
Children............................................................7
Maintenance ....................................................7
Presentation ........................................................9
Location of the controls....................................9
Throttle control ...............................................10
Choke lever....................................................10
Speed limiter ..................................................10
Cutting unit..................................................... 11
Lift lever for cutting unit.................................. 11
Lever for adjustment of cutting height............12
Parking brake.................................................12
Seat................................................................12
Fuelling ..........................................................12
Driving................................................................13
Before starting................................................13
Starting the engine.........................................13
Driving the machine .......................................14
Differential lock...............................................15
Cutting tips .....................................................16
Stopping the engine .......................................17
Disengage lever .............................................17
Maintenance ......................................................18
Maintenance schedule ...................................18
Dismantling of the machine hoods.................20
Checking the engine’s cooling air intake........21
Checking the transmission’s air intake...........21
Checking and adjusting the steering wires ....22
Checking and adjustment of throttle wire....... 23
Checking and adjustment of throttle wire....... 23
Adjusting the differential lock .........................23
Adjusting the hydrostatic wire ........................24
Adjusting the brakes ......................................25
Checking the tyre pressure ............................25
Replacement of air filter .................................26
Replacement of fuel filter ...............................27
Cleaning the pulse air filter ............................27
Checking the fuel pump’s air filter.................. 27
Checking the battery acid level ......................28
Checking the safety system ...........................29
The parts of the cutting unit ...........................30
Fitting the cutting unit.....................................30
Setting the parallelism....................................32
Setting the cutting height ...............................32
Checking and adjusting the ground
pressure .........................................................33
Replacing the break-pin (BioClip) ..................33
Service position for the cutting unit ................34
Checking the blades ......................................34
Dismantling the cutting unit............................35
Removing the attachment frame....................37
Dismantling the belts......................................37
Assembling the belts......................................38
Changing the cutting unit’s belts ....................39
Lubrication.........................................................41
Lubrication chart ............................................41
General lubrication.........................................42
Lubricating wires ............................................42
Lubrication instructions according to chart.....42
Trouble shooting schedule .............................. 47
Storage...............................................................48
Winter storage................................................48
Service ...........................................................48
Wiring diagram ..................................................49
Technical data ...................................................50
Service journal ..................................................52
IMPORTANT INFORMATION Read through these instructions carefully
so that you know how to use and maintain the machine before using it.
For servicing other than described in this manual contact an authorised dealer for parts and service.
English – 1

INSTRUCTION

Dear customer
Thank you for choosing a Husqvarna Rider. Husqvarna Riders are built to a unique design with a front­mounted cutting unit and a patented rear-wheel steering system. 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.
We hope you will find this operators manual very useful. 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 operators 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. Remember to take along the operators manual when you take the Rider to the workshop for servicing.
Travel and transport on public roads
Check 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.
Towing
If your machine has a hydrostatic transmission you should only tow it very short distances at low speed if absolutely necessary, otherwise the transmission may be damaged.
Intended use
This machine is designed solely for cutting grass on conventional lawns and other cleared and leveled ground without obstacles, as rocks, stumps etc., and, in conjunction with accessories supplied by the manufacturer even for other special tasks for which instructions are delivered with the accessory. Use in any other way is considered as contrary to the intended use. 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.
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
2 – English

SAFETY INSTRUCTIONS

Good service
Husqvarna products are sold all over the world and only through servicing dealers. This is to ensure 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 Operators Manual belongs to machine with serial number:
Engine Transmission
Serial number
The serial number can be found on the printed plate attached to the front, left-hand side under the seat. Stated on the plate, from the top are:
The machines type designation.
The manufacturers type number.
The machines serial number.
State the type designation and serial number when ordering spare parts.
The engine serial number is given on a bar code decal. This is located on the left side of the crankcase, in front of the starter motor. The sign states
The engine serial number (E/NO).
Code.
Please quote these when ordering parts.
The transmissions serial number is stated on the barcode decal located on the front of the housing on the left-hand drive axle:
Type designation is stated above the barcode and starts with the letter K”.
The serial number is stated above the barcode and has the prefix s/n”.
The manufacturers type number is stated under the barcode and has the prefix p/n”.
State the type designation and serial number when ordering spare parts.
English – 3

EXPLANATION OF SYMBOLS

These symbols are on the machine and in the instructions.
Study them carefully so that you know what they mean.
Read the instructions.
R
Reverse Neutral Fast Slow Engine off Battery Choke Fuel
Oil pressure Cutting height Backwards Forwards Ignition
Use hearing protection Hydrostatic freewheel Parking brake Brake Warning
Sound level
N
Warning! Rotating blades
Warning! Risk that the
machine can tip over
Never drive across a slope
European standard for
machine safety
Never use the machine if persons,
especially children, or animals,
are in the vicinity
4 – English
Never carry passengers on the
machine or equipment
Starting instructions Read the instructions Check the engines oil level Check the hydrostats oil level Lift up the cutting unit Hydrostatic pedals in neutral position Brake If the engine is cold use the choke Start the engine Release the parking brake before
driving
Keep hands and feet away from under the hood when
the engine is running
Speed limiter pedal forwards Neutral Speed limiter pedal reverse
Switch off the engine and take off the ignition cable before repairs or maintenance
Drive very slowly
without the cutting unit

SAFETY INSTRUCTIONS

RIDER
970
RIDER
850
RIDER
850
RIDER
850
RIDER
850
These instructions are for your safety. Read them carefully.
This symbol implies that important safety rules are applicable. This is for your safety and the operating reliability of the machine.
General use:
Make yourself familiar with the controls and how to stop quickly .
Read all the instructions in Operators Manual and on the machine before starting it. Make sure you understand them, and then follow them.
Only allow adults who are familiar with the machine to use it.
Wear approved safety glasses or a visor during assembly and driving.
Never use the machine barefoot. Always wear heavy-duty shoes, preferably toe-capped.
Never wear loose fitting clothes which can fasten in moving parting.
RIDER 970
RIDER 970
Read the instructions before starting the machine.
Clear the area of objects such as stones, toys, and wires, etc. which can be caught up by the blades and thrown out.
Check that there are no other persons in the area before starting to cut.
Stop the machine if anyone comes into the work area.
Never carry passengers.
Do not cut backwards unless absolutely necessary .
Always look down and behind before and during
reversing.
Keep an eye on the ejected grass and do not direct it towards anyone.
Slow down before turning.
Never leave the machine unattended when the
engine is running. Always switch of f the blades, pull on the parking brake, stop the engine and take out the keys before leaving the machine.
Switch off the blades when you are not cutting.
Only cut in daylight or good artificial lighting.
Clear the area from stones etc. before cutting.
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Never use the machine when you have consumed alcohol, drugs, or certain medicines.
Watch out for traffic when working close to a road, or crossing one.
WARNING! This machine can cut off hands and feet, and eject objects. Failure to follow the safety instructions can lead to severe injury.
Never carry passengers.
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English – 5
SAFETY INSTRUCTIONS
RIDER
850
RIDER
850
RIDER
850
RIDER
850
RIDER
850
RIDER
850
RIDER
850
RIDER
850
Be careful when rounding a fixed object so that the blades do not hit it. Never drive intentionally over a foreign object.
The machine is heavy and can cause very severe crush injuries. Be extra careful when loading it on a trailer or truck.
Be careful when pulling a load or using heavy equipment.
a. Only use approved tow hooks. b. Limit the load to what you can manage safely . c. Do not make sharp turns. Be careful when revers-
ing. d. Use counterweights or wheel weights when
indicated in the instructions.
Driving on slopes
Driving on slopes is one of the situations where there is the most serious risk that the driver can loose control or that the machine tips over, which can cause severe injuries or be fatal. All slopes require extra care. If you cannot reverse up the slope or if you feel uncertain avoid cutting it.
Do as follows:
Remove obstacles such as stones and branches etc.
Cut upwards and downwards, not sideways.
Look out for and avoid driving over furrows, holes or
mounds. On uneven surfaces it is easier for the machine to tip over. High grass can conceal obsta­cles.
Drive slowly . Use small movement on the hydrostat pedals.
Follow the manufacturers recommendations on wheel weights or counterweights to increase stability .
Be extra careful with the grass collector or other equipment which can alter the stability of the ma­chine.
Always drive smoothly and slowly on slopes. A void sudden changes of speed or direction.
Avoid starting or stopping on a slope. If the tyres begin to skid switch off the blades and drive slowly down the slope.
Avoid unnecessary turns on slopes, and if turning is necessary turn slowly and gradually , downwards if possible.
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Be extra careful when driving on slopes.
RIDER 850
RIDER 850
RIDER 850
RIDER 850
RIDER 850
RIDER 850
RIDER 850
RIDER 850
Do not cut close to edges, ditches or banks. The machine can suddenly tip over if a wheel goes over the edge of a drop or a ditch, or if a bank gives way .
Do not cut wet grass. It is slippery and the tyres can loose their grip so that the machine slides.
6 – English
Cut slopes upwards and downwards, not sideways.
SAFETY INSTRUCTIONS
RIDER
970
RIDER
850
RIDER
850
RIDER
850
RIDER
850
Do not try to stabilise the machine by placing one foot on the ground.
The Rider lawn mower must never be driven close to an edge or ditch when cleaning the chassis.
Children
Tragic accidents can occur if the driver does not pay attention to children in the vicinity . Children are often attracted to the machine and the work of mowing. Never assume that children stay where you last saw them.
Keep children away from the mowing area and under the supervision of another adult.
Be on your guard and switch off the machine if children come into the work area.
Before and during reversing look behind and down for small children.
Never allow children to ride on the machine. They can fall off and become seriously injured or obstruct an otherwise safe manoeuvre of the machine.
Keep children away from the mowing area.
Never allow children to steer the machine.
Be extra careful close to corners, bushes, trees or
other objects which obstruct your view.
Maintenance
Petrol and petrol fumes are toxic and highly inflam­mable. Be extra careful when handling petrol.
Store the fuel in containers approved for this pur­pose.
Never fill up the machine with fuel when the engine is running. Let the engine cool before filling up with fuel. Do not smoke. Do not fill fuel in the vicinity of sparks or naked flames.
Never fill up with fuel indoors.
If leakage has occurred in the fuel system the engine
must not be started until this is rectified.
Never store the machine or fuel containers indoors if there are naked flames, such as in a boiler room or where there is electrical equipment which can emit sparks.
RIDER 850
RIDER 850
RIDER 850
RIDER 850
Never allow children to drive the machine.
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Check the fuel level each time before using the machine, and leave space for the fuel to expand since the heat from the engine and hot sun can cause the fuel to run over.
Avoid overfilling. If petrol has been spilt on the machine wipe it up and wait until it has evaporated before starting the engine. If petrol is spilt on clothes, change them.
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Never fill up with fuel indoors.
English – 7
SAFETY INSTRUCTIONS
RIDER
850
RIDER
850
RIDER
970
Be extra careful when handling battery acid. Spilling acid on the skin can cause severe burn injuries. Rinse immediately with water. If acid gets into the eyes this can cause blindness. Contact a doctor.
Be careful with the maintenance of the battery . Explosive gas is formed in the battery . Never handle the battery when smoking or in the vicinity of naked flames or sparks. Otherwise the battery can explode and cause severe injuries.
Never drive the machine in an enclosed space. The exhaust fumes contain carbon monoxide, an odour­less, toxic and fatal gas.
Make sure that bolts and nuts, especially attachment bolts for the blade units are properly tightened and that the equipment is in good order.
Never alter the safety devices. Check regularly that they function. The machine must not be driven with defective or unmounted safety devices.
Do not alter the setting of the governor and do not race the engine.
Reduce the fire risk. Keep the machine clean from grass, leaves and other refuse which fastens in it. Allow the machine to cool before placing it in the storage area.
Stop and inspect the equipment if you drive over an object. If necessary repair the machine before starting.
Never make adjustments with the engine running.
The parts on the grass collector can become worn,
damaged and aged, so that moving parts are exposed or so that an object can be thrown out. Check the parts regularly and if necessary replace them with spare parts recommended by the manufacturer.
Never smoke in the vicinity of the battery or the fuel.
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Never drive the machine in an enclosed space.
The machine is tested for safety and approved only for equipment supplied or recommended by the manufacturer.
The blades are sharp and can cause cutting injuries. Wrap over the blades or use protective gloves when handling them.
Check the functioning of the brakes regularly . Adjust and maintain them as necessary .
The BioClip cutting unit should only be used to give high quality results on lawn surfaces that you are familiar with. If the blades of the cutting unit strike an obstacle this could change their spacing and lead to expensive repairs. (Does not apply to BioClip 112)
8 – English
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Clean the machine regularly from grass, leaves and other waste.

Presentation

PRESENTATION
These instructions describe the Rider ProFlex 21. The Rider ProFlex 21 is equipped with a 21-
horsepower four-stroke V-twin Kawasaki engine.
The power transmission from the engine is handled by a hydrostatic gearbox, which enables variable speed by using the pedals.
One pedal for driving forward and one for reverse.
Location of the controls
1. Ignition lock
2. Choke lever
3. Throttle control
4. Counter
5. Lever for adjustment of cutting height
6. Lifting lever for cutting unit with lock button
7. Speed limiter for reversing
8. Speed limiter for driving forward
9. Brake pedal
10. Lock button for parking brake
11. Differential lock
12. Lever for adjustment of seat
13. Fuel tank cap
14. Main lock
15. Lever to disengage the drive
English – 9
PRESENTATION
Throttle control
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.
Choke lever
The choke lever is used for cold starting and to give the engine a richer fuel mixture.
For cold starting the lever is moved backwards to its end position.
Speed limiter
The speed of the machine is steplessly regulated with two pedals. Pedal (1) is used to drive forwards, and pedal (2) to reverse.
1
2
10 – English
WARNING! Make sure that branches do not obstruct the pedals when mowing under bushes, otherwise you may lose control.
Cutting unit
PRESENTATION
Rider ProFlex can be equipped with numerous attachments.
The BioClip unit finely cuts the lawn by cutting the grass several times before returning the clippings to the lawn as fertiliser.
Cutting unit with rear ejection, i.e. cuttings are thrown out behind the unit..
Lift lever for cutting unit
The lift lever is used to set the cutting unit in transport or mowing position. In transport position the blade brake is activated automatically to stop the blades within around 5 seconds.
Examples of the accessories for Rider ProFlex:
Brush
Snow plough
Wheel weights
Snow chains
Dozer
Edger
Electric attachment lift
BioClip cutting unit
Gravel rake
Trailer
1. Pull back the lever to the locked position for transport.
The cutting unit will lift up and the blades stop
rotating.
2. Press in the lock button and move the lever forwards for the mowing position. The unit will lower down and the blades start to rotate.
3. The lever can also be used to temporarily regulate the cutting height, e.g. for a small mound in the lawn.
Lifting of the cutting unit
Lowering of the cutting unit
English – 11
PRESENTATION
Lever for adjustment of the cutting height
The cutting height can be adjusted to 7 different positions with the cutting height lever. To achieve an even cutting height it is important that the tyre pressures are the same on the front wheels (60 kPa).
Parking brake
The parking brake is applied as follows:
1. Push down the brake pedal.
2. Fully depress the lock button on the steering column.
3. Release the brake pedal while holding the button pressed.
The parking brake lock disengages automatically when the brake pedal is pressed.
Seat
The seat has a jointed attachment on the front edge and can be tipped forward.
The seat can also be adjusted lengthways. To adjust move the lever under the front edge of the
seat to the left, so that the seat can be moved forward or backwards to the required position.
Fuelling
The engine runs on unleaded petrol with a minimum octane rating of 87 (not mixed with oil). We recommend the use of Aspen biodegradable alkylate petrol. Refer to the Technical data for information on methanol and ethanol fuels.
WARNING! Petrol is highly inflammable. Exercise care and refuel outdoors (see safety instructions).
12 – English

DRIVING

Before starting
Read the sections headed Safety instructions and Presentation before starting the mower.
Carry out daily maintenance before starting (seeMaintenance schedule in the chapter onMaintenance”).
Adjust the seat to the required position.
Starting the engine
1. Lift up the cutting unit by pulling the lever back­wards to locked position (transport position) and apply the parking brake.
2. Move the throttle control to the middle position.
3. If the engine is cold move the choke lever backwards to its end position.
4. Turn the ignition key to the start position.
English – 13
DRIVING
5. When the engine starts release the ignition key immediately back to neutral position.
IMPORTANT INFORMATION Do not run the starter for more than about
5 seconds at a time. If the engine does not start, wait about 15 seconds before trying again.
6. Push the choke lever gradually forward when the engine has started.
7. Set the required engine speed with the throttle control.
Let the engine run at moderate speed or half throttle for 3-5 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.
Driving the machine
1. Release the parking brake by pressing the brake pedal.
2. Carefully press down one of the pedals until the required speed is obtained.
To drive forward press down pedal (1), or to reverse pedal (2).
1
2
14 – English
WARNING! Make sure that branches do not obstruct the pedals when mowing under bushes, otherwise you may lose control.
DRIVING
3. Select the required cutting height (1–7) with the cutting height lever.
4. Push in the lock button on the lift lever and lower down the cutting unit.
Differential lock
WARNING! Dont rest your thumbs inside the steering wheel. The wheel could jerk suddenly when the differential lock is engaged.
The differential lock can be engaged while moving using the pedal on the left.
To avoid getting stuck you should engage it just before you reach an obstacle.
1. Engage the differential lock when necessary by pressing the pedal. If one of the wheels spins, lighten the pressure on the accelerator slightly.
2. Make sure the differential lock disengages when the pedal is released. Make small steering movements or reverse a short distance until the pedal returns to its normal position.
English – 15
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 results are best with a high engine speed (fast rotating blades) and low driving speed (slow moving machine). If the grass is not too high and thick the driving speed can be increased or the engine speed reduced without noticeably affecting the mowing results.
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 be raised into the service position when cleaning.
If you use the BioClip unit it is important to mow the grass regularly.
WARNING! Never drive the machine on ground at an angle of more than 15°. Mow slopes upwards and downwards, never across. Avoid sudden changes in direction.
Mowing pattern
MAX 15
16 – English
DRIVING
Stopping the engine
Preferably allow the engine to idle for a minute to obtain normal working temperature before stopping it if it has been working hard.
1. Lift up the cutting unit by pulling the lever back to the locked position.
2. Move the throttle control to the MIN. position. Turn the ignition key to the STOP.
3. When the Rider is at a standstill, press down the parking brake and push in the locking button.
Disengage lever
The release control must be pulled out in order for the Rider to be moved when the engine is shutoff.
English – 17

MAINTENANCE

Maintenance schedule
The following is a list of the maintenance which should be conducted on the machine. For the items which are not described in these instructions go to an authorised service workshop.
PageMaintenance
Daily main­tenance before after
Check for fuel and oil leakage - Check the parking brake 25 Check the engine oil level (when you
refuel) 43 Check the fuel pump air filter 27 ●●
Check the seat safety switch 28 Check the lift lever safety switch 28 Check the parking brake safety switch 28 Check/clean the engine cooling air intake 21 ●● Check the cutting unit: 29
blades are secure 33
condition of blades (sharpness,
shape, etc.) 33
blade synchronisation (90° between BioClip) 33
Check steering wires (for play, etc.) 22 Check fasteners (screws, nuts, etc.) - Start engine and blades, listen for noise - Clean underside of cutting unit 33 Clean transmission air intake 21 ●● Check battery acid level 28 Check transmission oil level 45 Check the condition of belts, pulleys, etc. - Check for damage - Check tyre pressures (60 kPa) 25 Check for damage to wire guide at
articulated joint - Clean thoroughly around engine - Clean thoroughly around transmission - Clean all belts, pulleys, etc. 41 Lubricate the wire for the differential lock 42 Lubricate belt tensioner (nipple) 45 Lubricate triangle link (nipple) 44 Lubricate the drivers seat 44 Lubricate all wires 41 Lubricate safety lock on cutting unit 44 Lubricate inner stud on cutting unit 44 Lubricate slot for cutting unit tool frame 44 Lubricate bearing surfaces on cutting unit 44 Clean inside frame tunnel - Lubricate pedal mechanism inside frame
tunnel 41 Lubricate the gear lever 43 Lubricate the parking brake wire 45
Weekly main­tenance
3)
At least once a year
Maintenance interval in hours
25 50 100 300
18 – English
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