Operator’s Manual for Rider ProFlex 18 Contents Replacing the air filter ........36 Replacing the fuel filter ........38 Cleaning the pulse air filter ....... 38 Contents ..............1 Checking the fuel pump’s air filter ....38 Introduction ............3 Checking the tyre pressures ......39 Congratulations ...........3...
IMPORTANT INFORMATION Read carefully through the operator’s manual so that you know how to use and maintain the Rider before you use it. For service measures other than those described in this manual, please contact an authorised dealer that provides parts and service.
Towing Rider ProFlex 18 is equipped with a hydrostatic transmission and, if necessary, you should only tow the machine over short distances and at a low speed, otherwise there is a risk of damaging the transmission.
INTRODUCTION Proper Service Husqvarna’s products are sold all over the world and only by specialised retail traders offering complete service. This ensures that you as a customer receive only the best support and service. Before the product is delivered, the machine has, for example, been inspected and adjusted by your retailer, see the certiﬁcate in the Service Journal in this operator’s manual.
EXPLANATION OF SYMBOLS Symbols and decals These symbols can be found on the Rider and in the operator’s manual. Study them carefully so that you know what they mean. Slow Engine off Choke Neutral Fast Fuel Tyre pressure Oil level Cutting Height Reversing Forward...
EXPLANATION OF SYMBOLS WARNING! XXXXXXX XXXX XXXXXXXX XXX X. XXXXX XXXXXX XX. XX XXXXXXXX XXXXX XXX XX. Used in this publication to notify the reader of a risk of personal injury , particularly if the reader should neglect to follow instructions given in the manual. IMPORTANT INFORMATION Xxxxxxx xxxx xxxxxxxx xxx xxx xxxx xxxxxx xx.
SAFETY INSTRUCTIONS Safety instructions These instructions are for your safety. Read them carefully. WARNING! The inserted symbol means that important safety instructions needed to be observed. It applies to your safety. 8010-047 Read the operator’s manual before starting the machine General use •...
SAFETY INSTRUCTIONS WARNING! Engine exhaust, some of its constituents and certain vehicle components contain or emit chemicals considered to cause cancer, birth defects or other reproductive impairment. The engine emits carbon monoxide, which is a colourless, poisonous gas. Do not use the machine in enclosed spaces.
SAFETY INSTRUCTIONS Driving on slopes Driving on slopes is one of the operations where the risk of the driver losing control of the machine or of it overturning is the greatest; this can result in serious injury or death. All slopes demand extra care. If you cannot reverse up a slope or if you feel unsure, do not mow it.
SAFETY INSTRUCTIONS Children • Serious accidents may occur if you fail to be observant for children in the vicinity of the machine. Children are often attracted to the machine and mowing. Never assume that children will stay where you last saw them. •...
SAFETY INSTRUCTIONS WARNING! The engine and components of the exhaust and hydraulic systems become extremely hot during operation. Risk of burn injuries if touched. • If leaks arise in the fuel system, the engine must not be started until the problem has been resolved. •...
SAFETY INSTRUCTIONS • Never use the machine indoors or in spaces lacking proper ventilation. Exhaust fumes contain carbon monoxide, an odourless, poisonous and highly dangerous gas. • Stop and inspect the equipment if you run over or into anything. If necessary, make repairs before starting.
Congratulations on your choice of an exceptionally high quality product. This operator’s manual describes Rider ProFlex 18. Rider ProFlex 18 is ﬁtted with a Kawasaki four-stroke V-Twin engine developing 18 horse power. 8009-551 Rider ProFlex 18 is equipped with servo steering and hydraulic lifts, powered by the gearbox and differential lock.
PRESENTATION Placement of Controls 8009-676 Power outlet 11. Accelerator for reversing Ignition key 12. Accelerator for driving forwards Switch for the power outlet 13. Pedal for parking brake Choke Lever 14. Lock button for parking brake Switch for the lights 15.
PRESENTATION Throttle Control The throttle is used to control the speed of the engine and thereby also the rotation speed of the blades. In order to increase or decrease the engine speed, the control is moved forwards or backwards respectively. Avoid idling the engine for long periods, as there is a risk of carbon build-up on the spark plugs.
PRESENTATION Cutting unit Rider ProFlex can be equipped with a cutting unit of the types Combi 112 with a 112 cm cutting width and Combi 122 with a 122 cm cutting width. The Combi unit functions as a BioClip unit when a BioClip plug is ﬁtted, but can be set to rear ejection by removing the BioClip plug.
PRESENTATION Cutting height adjustment lever Using the cutting height lever, the cutting height can be adjusted between 7 different positions. It is important that the air pressure in both front wheels is equal, 60 kPa / 0.6 bar / 9 PSI, to produce an even cutting height.
PRESENTATION Mechanical lifting lever for cutting unit The lever is used as a backup lever to put the cutting unit in either the transport or mowing position when hydraulic pressure is unavailable. It can also be used to mechanically secure the cutting unit in the transport position.
PRESENTATION Parking brake The parking brake is activated as follows: Press down the parking brake pedal. Completely depress the lock button on the steering servo housing. Release the parking brake pedal while keeping the button pressed in. The parking brake lock is automatically disengaged when the parking brake pedal is pressed down.
PRESENTATION Clutch control The clutch control is used to move the Rider when the engine is not running. • Control drawn out, drive system disengaged. • Control depressed, drive system engaged. 8009-142 Chronometer The chronometer shows how many hours the engine has been running.
DRIVING Mowing tips WARNING! Clear the lawn of stones and other objects that can be thrown out by the blades. • Localise and mark rocks and other ﬁxed objects in order to avoid collisions. 6007-212 Mowing patterns • Begin with a high cutting height and reduce it until the desired mowing result is attained.
DRIVING Driving IMPORTANT INFORMATION The air intake grille in the engine cover behind the driver's seat must not be blocked by, for example, clothing, leaves, grass or dirt. Impaired cooling of the engine. Risk of major engine damage. 8009-489 Before Starting •...
DRIVING Move the throttle to the middle position. 8009-562 If the engine is cold, the choke control shall be moved backwards to its end position. 8009-534 Turn the ignition key to the start position. 8009-558 When the engine starts, immediately release the ignition key so that it returns to the neutral position.
DRIVING Move the choke lever gradually forward once the engine has started. 8009-560 Set the desired engine speed with the throttle. Allow the engine to run at a moderate speed, “half throttle”, for 3-5 minutes before loading it too heavily. WARNING! Never run the engine indoors, in enclosed or badly ventilated areas.
DRIVING Select the required cutting height (1-7) using the cutting height lever. 8009-539 Depress the lock button on the mechanical lifting lever and move the lever to its most forward position. The cutting unit lowers and starts. 8009-537 If the cutting unit does not lower completely, or if the blades do not rotate, lower the cutting unit completely using the hydraulic lifting lever.
DRIVING Stopping the engine If the engine has been worked hard, it is preferable to let the engine idle for a minute so it runs at its normal working temperature when stopped. Avoid idling the engine for long periods, as there is a risk of carbon build-up on the spark plugs.
MAINTENANCE Maintenance Maintenance schedule The following is a list of maintenance procedures that must be performed on the Rider. For points marked with footnote number 4, turn to an authorised service representative. G = Described in this manual. ❍ = Not described in this manual. Maintenance Page Daily main-...
MAINTENANCE G = Described in this manual. ❍ = Not described in this manual. Maintenance Page Daily main- Weekly Maintenance interval tenance least in hours main- once tenance before after a year Check the air pressure in the tyres (60 kPa) Check to ensure that the cable seats in the middle are undamaged Clean thoroughly around the engine...
MAINTENANCE G = Described in this manual. ❍ = Not described in this manual. Maintenance Page Daily main- Weekly Maintenance interval tenance least in hours main- once tenance before after a year Check/adjust the cutting height Check/adjust the parking brake ❍...
MAINTENANCE Removing the Rider’s covers Engine cover Push the seat to its most forward position and then tip it back. Turn the cover lock on the top of the engine cover anti-clockwise a 1/4 turn. 8009-509 Fold up the engine cover. If necessary the engine cover can be lifted off by removing the hinge pins.
MAINTENANCE Left-hand wing cover Loosen the screws (2) and remove the wing cover. 8009-501 Transmission cover Loosen both screws (one on each side) and lift off the transmission cover. 6008-209 Checking the engine’s cooling air intake Clean the air intake grille in the engine cover behind the driver's seat.
MAINTENANCE Checking the transmission air intake Check to ensure that the air intake valve to the transmission is not clogged. 6008-208 Checking and adjusting the steering cables The steering is governed by means of cables. After a period of use these can become stretched, which means the steering setting may have changed.
MAINTENANCE Checking and adjusting the throttle cable Check that the engine responds to throttle increases and that a good engine speed is attained at full throttle. If doubts arise, contact your service representative. If adjustments are necessary, they can be made as follows for the lower cable: Loosen the clamping screw for the cable’s outer casing and move the throttle to the full throttle...
MAINTENANCE Adjusting the hydrostatic transmission cable The hydrostatic transmission cable (on the left side) is adjusted in the following manner: Remove the transmission cover. Loosen both screws (one on each side) and lift off the transmission cover. Take apart the lower ball joint, which is locked with a locking spring.
MAINTENANCE Adjusting the parking brake The parking brake is adjusted in the following manner: Remove the transmission cover. Loosen both screws (one on each side) and lift off the transmission cover. 6008-209 Unhook spring (A) from the screw (B) on the right- hand side 6020-005 Check that the parking brake is not on.
MAINTENANCE Replacing the air ﬁlter If the engine seems to lack power or does not run smoothly this may be because the air ﬁlter is clogged. If run with a soiled air ﬁlter, carbon can build-up on the spark plugs and lead to malfunction. For this reason, it is important to replace the air ﬁlter regularly (see “Maintenance schedule”...
MAINTENANCE Remove the wing nut in the air ﬁlter and remove the paper ﬁlter. 8009-150 Tap the paper ﬁlter against a ﬁxed surface to remove dust. If the paper ﬁlter is still dirty, it must be replaced. IMPORTANT INFORMATION Do not use compressed air to clean the paper ﬁlter.
MAINTENANCE Replacing the fuel ﬁlter Replace the fuel ﬁlter mounted on the supply line after every 100 hours (once per season) or more frequently if it is clogged. Replace the ﬁlter as follows: Open the engine cover. Move the hose clamps away from the ﬁlter. Use a pair of ﬂat pliers.
MAINTENANCE Checking the tyre pressures The tyre pressure should be 60 kPa / 0.6 bar / 9 PSI on all wheels. In order to improve drive power, the pressure in the rear tyres can be reduced to 40 kPa / 0.4 bar / 6 PSI. Highest permitted pressure = 80 kPa / 0.8 bar / 12 PSI.
MAINTENANCE Replacing the spark plug Remove the ignition cable shoe and clean around the spark plug. Remove the spark plug with a 3/4" (19 mm) spark plug socket wrench. Check the spark plug. Replace the spark plug if the electrodes are burnt or if the insulation is cracked or damaged.
MAINTENANCE Checking the safety system The Rider is equipped with a safety system that prevents starting or driving under the following conditions. It should only be possible to start the engine when the cutting unit is in its raised position and the hydrostat pedals are in the neutral position.
MAINTENANCE Replacing the light bulbs For information about the bulb type, see “Technical data”. Unscrew the two screws holding the cover on the power servo housing. Lift up the cover and turn it around the steering shaft. 8009-511 Unscrew the two screws holding the lamp insert. Lift out the lamp insert.
MAINTENANCE The cutting unit components In the instructions below, a cutting unit with a rear ejector is shown, but the same principles apply to all cutting units unless otherwise stated. The components mentioned are: • A Catch • B Inner pin •...
MAINTENANCE Attach the unit to the equipment frame’s outer hooks. 8009-024 Pull out the catch (A) and loosen the safety catch by pushing its handle (D) back. 8009-167 Raise the unit by pulling up the mechanical lifting lever, located on the driver’s right side. Push the unit in so that the interior plugs (B) touch the bottom of the equipment frame’s grooves.
MAINTENANCE Loosen the belt tensioner spring and attach the belt to the front belt pulley. A new belt is short. Turn the forward pulley as needed with a spanner on the centre screw. 8009-008 Reﬁt the belt tensioner spring. IMPORTANT INFORMATION Check that the belt is around the idler.
MAINTENANCE Adjusting the cutting height, parallelism and ground pressure When a new cutting unit is attached, you need to adjust the cutting height, parallelism and ground pressure. Adjustment must be made in the stated order. Starting position: • Check the air pressure in the tyres 60 kPa / 0.6 bar / 9 PSI.
MAINTENANCE Ground pressure In order to achieve the best mowing result the cutting unit should follow the ground without touching it too heavily. Pressure is adjusted using a screw and spring on each side of the Rider. Adjust the cutting unit’s ground pressure in the following manner: Place a set of bathroom scales under the cutting unit’s frame (on the front edge) so that the unit...
MAINTENANCE Cutting unit model ProFlex can be equipped with two different types of cutting unit: • Combi 112 • Combi 122 Other cutting units cannot be mounted without changing the drive belt. 8009-288 Combi 112 8009-290 Combi 122 Checking the blades It is important that the blades are undamaged and well- ground to give the best mowing result.
MAINTENANCE Removing the cutting unit WARNING! Exercise caution. Risk of crush injuries Place the machine on a ﬂat surface. Lock the brake by pressing down the pedal and locking with the push-button. 8009-328 Lift the cutting unit with the mechanical lifting lever.
MAINTENANCE Unhook the height adjustment strut (E) by moving the rear part upwards: Unload the strut if necessary by pulling the frame’s forward section up or down. 8009-169 10. Pull the handle (D) and unit simultaneously. Release the handle when the unit has come out a bit.
MAINTENANCE Removing the unit frame Starting position for removing the cutting unit frame: • Cutting unit removed. Twist the catch out so that the forward fastener can be lifted from the cutting unit. 8009-184 Move the unit frame backwards so that the tongue of the cutting unit releases its grip on the bar of the unit frame and lift the frame off.
MAINTENANCE Attaching the belt Place the forward part of the belt in place and hang the forward part around the handle of the safety catch. Put the belt on the centre pulley and against the cross member. 8009-613 Press the guide plate down under the anti-scalp roller and push the belt into place.
MAINTENANCE Changing the cutting unit’s belt WARNING! Protect your hands with gloves when working with the blades. There is a risk of crush injuries when working with the belt. Changing the belt on the Combi unit On these cutting units with “collision-proof” blades, the blades are driven by one V-belt.
MAINTENANCE Removal of BioClip Plug To change a Combi unit from the BioClip function to a cutting unit with rear ejection, remove the BioClip plug, which is located under the unit, attached with three screws. Put the unit in service position, see “The cutting unit’s service position”...
LUBRICATION Lubrication Lubrication schedule When in daily use, the weekly lubrication (1/52) schedule should be carried out twice a week. 8009-675 The position numbers for the lubrication points refer to the lubrication instructions on the following pages. English-...
LUBRICATION General Remove the ignition key to prevent unintentional movements during lubrication. When lubricating with an oil can, it ought to be ﬁlled with engine oil. When lubricating with grease, unless otherwise stated, grease 503 98 96-01 or another chassis or ball bearing grease offering good corrosion protection shall be used.
LUBRICATION Lubricating in accordance with the lubrication schedule The numbers in the following headings refer to the lubrication points as described in “Lubrication schedule” on page 55. 1. Pedal mechanism in frame tunnel Lubricate the pedal mechanism in the frame tunnel. Remove the cover over the frame tunnel by loosening the two screws.
LUBRICATION 3. Engine oil Check the oil level in the engine when the Rider stands horizontal with the engine switched off. Fold up the engine cover. Remove the dipstick and wipe it clean. Now insert the dipstick again, without tightening it. Take the dipstick out again and read the oil level.
LUBRICATION Replacing the engine oil The engine oil should be changed the ﬁrst time after 8 hours running time. It should then be changed after every 100 hours of running time. WARNING! Engine oil can be very hot if it is drained directly after stopping the engine.
LUBRICATION 4. Gear lever Remove the transmission cover, two screws. Lubricate the joints and bearings on the left side with an oil can. Remove the rubber casing and lubricate the hydrostatic transmission cable with an oil can. Press the pedal a few times and lubricate again. 6008-209 Replace the rubber cover.
LUBRICATION 8. Driver’s seat Tilt the seat back. Lubricate the lengthways adjustment mechanism with the oil can. Lubricate the lengthways adjustment runners with grease. Pull the seat back and forth and lubricate on both sides. 8009-347 9. Throttle and choke cables, lever bearings Remove the right side cover on the lever housing (2 screws) and open the engine cover.
LUBRICATION 10. Hydraulic oil ﬁlter, change IMPORTANT INFORMATION Used engine or transmission oil is health- impairing and must not be disposed of in the ground or in nature. Replaced ﬁlters must be handed in to the workshop or other allotted placed for disposal. Avoid skin contact;...
LUBRICATION Wipe new, clean engine oil onto the seal for the new ﬁlter. Fit the ﬁlter by hand with + 3/4 turn. Run the engine warm, then check that there are no leaks around the oil ﬁlter seal. Check the oil level in the engine, top up if necessary.
TROUBLE SHOOTING Trouble Shooting Guide Problem Cause The engine will not start. • Fuel tank empty • Incorrect fuel type • Faulty spark plugs • Faulty spark plug connections • Dirt in the carburettor or fuel line Starter does not turn the engine •...
TROUBLE SHOOTING Problem Cause Engine overheating • Engine overloaded • Air intake or cooling ﬁns clogged • Damaged fan • Too little or no oil in the engine • Faulty pre-ignition • Faulty spark plugs Battery does not charge • One or more battery cells faulty •...
STORAGE Storage Winter Storage At the end of the mowing season, the Rider should be readied for storage, likewise if it will not be in use for more than 30 days. Fuel allowed to stand for long periods of time (30 days or more) can leave sticky residues that can clog the carburettor and disrupt engine function.
When ordering spare parts, please specify the purchase year, model, type, and serial number of the Rider. Always use genuine Husqvarna spare parts. An annual check-up or trimming at an authorised service representative is a good way to ensure that your Rider performs at its best the following season.
ELECTRICAL AND HYDRAULIC SYSTEMS Electrical system 8009-549 Electrical system Numbers correspond to: Colour abbreviations: Microswitch, hydrostatic transmission RD = Red BL = Blue Microswitch, cutting unit VT = White Microswitch, seat SV = Black Ignition key GL = Yellow Chronometer GR = Green Start relay BR = Brown...
ELECTRICAL AND HYDRAULIC SYSTEMS 8009-588 Electrical system English-...
ELECTRICAL AND HYDRAULIC SYSTEMS Hydraulic system 8009-357 Hydraulic System: component locations Hydraulic System: component locations: Power steering Pneumatic cylinder Pump in hydrostatic transmission Pressure limiting valve Hydraulic oil ﬁlter Control valve for pneumatic cylinder Keep the hydraulic system clean. Remember to: •...
ELECTRICAL AND HYDRAULIC SYSTEMS English-...
TECHNICAL DATA Technical data Data Rider ProFlex 18 Dimensions Length, base machine 2080 mm / 6,82 ft Width, base machine 900 mm / 2,95 ft Height 1160 mm / 3,80 ft Operating weight, base machine 309 kg / 682 lb Wheelbase 1000 mm / 3.28 ft...
TECHNICAL DATA Data Rider ProFlex 18 Hydraulic System Max. working pressure 45 bar / 630 PSI Transmission Manufacturer Tuff Torq K 66 SAE 10W/30, class SF-CC Oil volume, total 3.2 litres Cutting unit Combi 112 Cutting width 1120 mm / 44"...
We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declare under sole responsibility that Rider Husqvarna Rider ProFlex 18 dating from 2005 serial numbers and onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with the requirements of the COUNCIL’S DIRECTIVE:...
SERVICE JOURNAL Service journal Action Delivery Service Fill the battery with battery acid and charge for four hours. Fit the steering wheel, seat and, where applicable, other components. Attach the cutting unit. Adjust the cutting unit: Adjust the lifting springs (the “weight” of the cutting unit should be 12-15 kg, if a brush is to be used, set to maximum spring force).
SERVICE JOURNAL Action Date, mileage reading, stamp, signature 25-Hour Service Clean the air cleaner’s pre-ﬁlter (Foam element). Notes (shorter intervals in dusty operating conditions) Clean the engine’s cooling air intake and the transmission’s air intake. Clean the fuel pump’s air ﬁlter. (in dusty operating conditions) Check the screws on the mufﬂer (10 Nm).
SERVICE JOURNAL Action Date, mileage reading, stamp, signature 50-Hour Service Clean/change the air cleaner’s pre-ﬁlter (Foam element). Notes (shorter intervals in dusty operating conditions) Clean the engine’s cooling air intake and the transmission’s air intake. Clean the fuel pump’s air ﬁlter. Clean the fuel pump’s air ﬁlter.
SERVICE JOURNAL Action Date, mileage reading, stamp, signature 100/200-Hour Service Change engine oil. Replace the oil ﬁlter every 200 hours. Notes Clean/change the air cleaner’s pre-ﬁlter (Foam element). Clean the air cleaner’s paper ﬁlter. Replace every 200 hours. (shorter intervals for dusty operating conditions) Check the screws on the mufﬂer (10 Nm).
SERVICE JOURNAL Action Date, mileage reading, stamp, signature 300-Hour Service Inspect the machine. Additional work? Notes Change engine oil. Change the air ﬁlter (Foam element). Change the air ﬁlter (paper ﬁlter). Check the screws on the mufﬂer (10 Nm). Clean the fuel pump’s air ﬁlter. Check/adjust the cutting height.
SERVICE JOURNAL Action Date, mileage reading, stamp, signature At Least Once Each Season Change the engine oil (100 hours). Notes Clean/change the air cleaner’s pre-ﬁlter (Foam element) (25 hours). (shorter intervals in dusty operating conditions) Clean/change the air ﬁlter’s paper ﬁlter (100 hours). (shorter intervals in dusty operating conditions) Clean the fuel pump’s air ﬁlter (50 hours).