Introduction and safety regulations 1 Introduction and safety regulations 1.1 General 1.5.1 General directions The workshop that repairs the ride-on mower must This workshop manual gives a full description of how have safety devices that comply with local to do troubleshooting, repair and test of the ride-on regulations.
Never carry passengers on the product or equipment. Move rearward. Move forward. Parking brake, model RC 320Ts AWD. Speed brake, model RC 318T. This product is in accordance with applicable EC directives. Noise emission to the environment according to the European Community’s Directive.
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Introduction and safety regulations Engine speed – fast. Oil level. Risk of crush injuries. Engine speed – slow. Risk of crush injuries. Keep body parts The auger is in the servicing position. away from the equipment frame. Hot surface. The cutting deck is not attached. The collector is full.
Delivery and service 2 Delivery and service 2.1 Service schedule WARNING: Do not do service on the engine or cutting deck unless the conditions that follow are met: • The engine is off. • The parking brake is applied. • The ignition key is removed.
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Delivery and service Care Daily mainte- At least Maintenance nance before once a year interval in hours 100 200 Examine and adjust the steering wires Examine the muffler and heat deflector Examine the cutting deck for damages Change the spark plug Adjust the parking brake Do a check of and adjust the throttle wire Clean the cooling fins on the engine and the...
Delivery and service 2.2 Assembly and checks 2.2.4 Transmission oil level Work on the hydraulic system demands cleanliness 2.2.1 Battery and the hydraulic system must be vented before the product is used. For more information, see “5.6.1 The product is equipped with a rechargeable lithium Hydraulic hygiene”...
Drive forwards (1) and in reverse (2). 2.3.3 Speed control Do a check of the maximum engine speed with a Husqvarna original tachometer. Make sure that the maximum speed is regulated to 3000 ± 100 rpm. 2.4 Final inspection •...
Service tools 3 Service tools The following special tools are used when you do work on the product. Special tools for engine and transmission can be found in the respective workshop manual. Optical tachometer 502 28 80-01 Puller - belt pulley 506 66 48-01 Battery charger (EU) 590 06 82-01...
Service tools 3.1 Laser tachometer 3.1.3 Measure rpm 1. Put the switch to RPM position to measure rpm or 3.1.1 Safety during use TOT to measure the number of revolutions. 2. Put a small piece of reflective tape (approx WARNING: Read these safety instruc- 1x1 cm) on the rotating object to be measured.
Service tools 3.2 Screw fasteners 3.3 Hydraulic couplings Metric threads are used on the product. When hydraulic hoses and pipes that are NOT specified on the next page, are assembled, first Some bolt fasteners are locked with screws treated with Eslok ® Nylon 180°. The screw threads have a tighten their cap nuts by hand to a stop.
Service tools 3.4 Torque and lubricaton requirements schedule Positon Qty. Description Torque Lubrication Hose clamps No specific torque requirement Hoses attached to the oil cooler 38Nm Lubrication 556 Pipe fitting RMU 40Nm Pipe fittings to servo and oilfilter 70Nm Pipe fittings to FMU 85Nm General General for hoses and pipes not...
Design and Function 4 Design and function 4.1 Serial number 4.1.3 Transmission serial number (3) The transmission serial number is on a barcode decal 4.1.1 Product serial number (1) located on the transmission. The product serial number is found on the plate •...
Design and Function 4.2 Engine 4.3.1 RC 318Ts Outline diagram of articulated steering function. The product has a twin-cylinder, overhead valve engine with pressure lubrication and separate oil filter. It is important that only original spare parts are used to repair the engine. If other parts are used, the guarantee is invalidated.
Do not use intermediate positions. The hydraulic pump and transmission are assembled The drive system lever for model RC 318T is as a unit. positioned behind the left rear wheel. Model RC Front axle on AWD from the top. The axle consists of 320Ts AWD has one drive system lever for the front a hydraulic motor, differential and drive axles.
Design and Function 4.6 Cutting deck 4.6.1 Lift lever for the cutting deck The lift lever is used to set the cutting deck in The entire Rider series have a front-mounted cutting transport or mowing position. If the lift lever is pulled deck in order to move efficiently even in confined rearwards the deck raises and the blades areas.
Chassis 5 Repair instructions 5.1 Chassis Right fender Unscrew the reverse pedal knob, loosen the 4 screws 5.1.1 Covers and lift off the cover. Tools Dimension Torx Engine cover Tilt the collector to access the engine cover, loosen the 3 screws and lift off the cover. Left fender Loosen the 4 screws and lift off the cover.
For further information, see “6.1.4 Technical data – RC 318T / RC 320Ts AWD” on page 72. Adjusting the throttle cable If adjustment is needed, do the following on the cable.
Chassis 5.1.3 Driver’s seat Tools Dimension Combination wrench 13 mm To assemble the seat 1. Assemble the seat according to the picture. To adjust the seat The seat can be tilted forward. It can also be adjsuted lengthways. Loosen the handles below the seat to adjust forward or reward.
Chassis 5.1.4 Brake cable 3. Unhook the spring (1) from the screw (2). To do a check of the parking brake 1. Park the product on a hard surface that slopes. NOTE: Do not park the product on a grass slope when you do a check of the parking brake.
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Chassis Adjusting the brake cable RC320T AWD Adjusting the front brake cable RC 318T 1. Remove the covers. 1. Remove the left fender. 2. Make sure that the parking brake is not applied. 2. Make sure that the parking brake is not applied.
Chassis 5.1.5 Wheel hub Dismantling 1. Place a jack assembly under the product. 2. Raise the product. 3. Remove the wheel hub. 4. Remove the wheel. Take care of keys, spacers and washers. Assembly Assemble in opposite sequence. NOTE: Do a check of the keys. Replace if dam- aged.
Propulsion 5.2 Propulsion 5.2.1 Engine WARNING: Hot components, allow the 1. Air Filter engine to cool. 2. Fuel filter 3. Oil filler 4. Key on the engine shaft 5. Engine pulley 6. Starter motor 7. Fuel filter 8. Oil filter 24 –...
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Propulsion Dismantling 8. Loosen the exhaust clamp and the 4 fastenings screws on the muffler. Then remove the muffler 1. Remove the engine cover. For more information, and the exhaust pipe. refer to “5.1.1 Covers” on page 18. 9. Remove the belt guide for the engine belt pulley 2.
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Propulsion Assembly 11. Use the 506 66 48-01 puller if needed. Assemble the engine in opposite sequence. NOTE: Hold the battery cable screws in place so that the electrodes are not strained. NOTE: When fitting the engine, it is important that the groove of the belt pulley, (A) is in such a postion that the outgoing shafts key (B) fits into the groove.
Propulsion 5.2.2 Solenoid clutch Dismantling Tools Dimension Wrench x2 Ratchet wrench 16 mm 1. Dismantle the auger, see “5.9.1 Remove the auger kpl” on page 66, and remove the belt. 2. Counterhold underneath the magnetic clutch with a wrench. 3. Loosen the screw and disconnect the cable and remove the solenoid clutch.
Propulsion 5.2.3 Transmission oil change 5.2.4 Replacing the hydrostat filter The filter is located at the back of the rear Tools Dimension transmission and should be changed when the oil is Torx changed. Allen Key 10 mm 1. Put a container below the transmission. Flat-blade screwdriver 2.
Propulsion 5.2.5 Replacing the engine oil filter 5.2.6 Changing engine oil Tools Dimension WARNING: Risk of spray and burn injuries. The engine oil filter is very hot Combination wrench 19 mm immediately after the engine is stopped. Allow the engine to cool down first. WARNING: Engine oil is very hot if it is drained directly after the engine is WARNING: Avoid skin contact, wash...
2. Loosen the knobs that hold the filter cover and lift To replace the spark plug a special wrench developed off the cover. by Husqvarna needs to be used. Part number 589 88 32-01. 3. Lift out the air filter.
1. Remove the 2 screws that hold the transmission change while work is in progess. cover, and lift off the cover. Measure with the Husqvarna optical revolution counter. Front wheel speed should be 0.95-1.0 of the rear wheel speed. Note that the variation between the wheel speeds is different on delivery.
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Propulsion 2. Set the steering wheel in the centre position. Use 12. When the adjustment has been made, tighten the a straigt edge or similar. locknuts on the adjuster rod. 3. Jack up and block the product with the wheels on one side on the ground and the wheels on the other side in the air.
Electrical system 5.3 Electrical system 14 13 12 11 5.3.1 Electrical system overview NOTE: There is more detailed information concerning the electrical system on the Husqvarna web- site. 1. Auger rotation sensor 11. Fuses 2. Switch for tilting the collector 12.
Electrical system 5.3.2 Auger control switch 5.3.3 Battery Dismantling Dismantling 1. Remove the right side cover, see “5.1.1 Covers” 1. Tilt the collector. on page 18. 2. Loosen the battery fastening strap. 2. Disconnect the cable from the auger control 3.
Use only the charger specified by Husqvarna for this typ of battery. (LiFePO 5. Start the battery. NOTE: If the battery voltage is too low the bat- tery goes into protective mode.
Electrical system 5.3.5 Safety system 5.3.6 Replacing the light bulbs The engine can only be started when the following For information about the bulb type, see “6.1 conditions are met: Technical data” on page 70. • The cutting deck is lifted and the parking brake is 1.
Electrical system 5.3.7 Ignition switch 5.3.8 Hour meter Tools Dimension Dismantling Combination wrench 18 mm 1. Tilt the seat. Torx Wrench Dismantling 1. Remove the right side cover. See “5.1.1 Covers” on page 18. 2. Disconnect the cable from the ignition switch. 2.
Electrical system 5.3.9 Switch for tilting the collector 5.3.11 Sensor for collector full Dismantling To adjust the sensor for collector full 1. Remove the side cover. See “5.1.1 Covers” on If the collector hatch opens or the auger stops before page 18.
Fuel system 5.4 Fuel system 5.4.1 Fuel tank 3. Remove the tank support and lift away the tank. Tools Dimension Combination wrench 13 mm Torx 1. Compress the hose with pliers and remove the hose clip and hose from the bottom fuel filter connection.
Fuel system 5.4.2 Replacing the fuel filter Tools Dimension Flat nose pliers – Hose pliers – To replace the fuel filter 1. Tilt the collector to access the fuel filter. 2. Use a pair of flat pliers to move the hose clips away from the filter.
Cooling system 5.5 Cooling system 5.5.1 Changing the oil cooler Dismantling Tools Dimension Combination wrench 10 mm Combination wrench 19 mm 1. Tilt the collector. 2. Disconnect the electrical connector. 3. Mark the hydraulic hoses so that they are reconnected correctly. 4.
Hydraulic system 5.6 Hydraulic system Keep hydraulic system fluid clean You must be completely sure that when opening a 5.6.1 Hydraulic hygiene can of oil for the hydraulic system, the area around the filler cover is absolutely free from dust, dirt, cotton Keep the hydraulic system clean.
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Hydraulic system Hydraulic couplings, pipes and hoses There is a filter in the hydraulic tank for the suction pipe of the pump. Hydraulic pipes must always be loosened at both ends when dismantling. A hydraulic oil filter of the spin-on type is used to filter impurities.
Hydraulic system 5.6.3 Rear transmission Tools Dimension Torx Combination wrench 14 mm Combination wrench 16 mm Combination wrench 17 mm Combination wrench 22 mm Combination wrench 32 mm Combination wrench 15 mm Combination wrench 17 mm Combination wrench 18 mm Combination wrench 22 mm Combination wrench...
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Hydraulic system Dismantling 5. Remove the 4 screws which hold the rear transmission and lower it. 1. Raise the product and support it under the frame. Refer to the illustration for the permitted area. Left side Right side. 2. Dismantle the rear wheels. 3.
Hydraulic system 5.6.4 Front transmission RC 320Ts AWD Tools Dimension Groove joint pliers – Combination wrench 18 mm Combination wrench 22 mm Combination wrench 27 mm Combination wrench 32 mm Allen Key 10 mm Torque wrench – Combination wrench 22 mm Combination wrench 27 mm English –...
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Hydraulic system Dismantling 5. Drain the oil. See “5.2.3 Transmission oil change” on page 28. 1. Remove the cutting deck, see “Remove the cutting deck” on page 57. 6. Release the hydraulic pipes from underside the transmission. Attach the protective plugs. 2.
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Hydraulic system 10. Remove the 5 bolts that hold the transmission Assembly and lower it. Assemble the front axle in opposite sequence to removal. The bearing on the left side is turned so the grease nipple points rearwards. 1. First assemble all the screws on the front axle and the bearings loosely in order to guide the axles into the best position.
Hydraulic system 5.6.5 Seal replacement outgoing shaft 5. Wrap insulation tape around the outgoing shaft from the beginning of the key groove and 1. Remove the wheels. Do not lose the key that sits outwards until the threads of the circlip are between the wheel, the hub and the shaft.
Hydraulic system 5.6.6 Steering cylinder 7. Remove the screws that hold the power steering bracket in the power steering housing. To remove the power steering 1. Remove the cutting deck. 2. Loosen the steering cables rear mount. 8. Pull the power steering upwards and move the lower section rearwards in order to force the steering chain.
Hydraulic system 5.6.7 Bleeding the hydraulic system 6. When the product begins to move, the throttle should be increased to high enginge speed. NOTE: Ensure cleanliness. Used oil may not 7. Repeat quick starts and emergency stops until be reused. See “5.6.1 Hydraulic hygiene” on the transmission responds correctly.
Cutting system 5.7 Cutting system 5. Lower the equipment frame with the mechanical lever. Insert a small screwdriver through the chain, so that it can not slide into the frame 5.7.1 Tool frame tunnel. Release the chain from the equipment Tools Dimension frame.
Cutting system Assembly 5. Lower the auger control lever to lift the auger to service position. 1. Slide in the tool frame. Make sure that the height adjustment stay is inserted into the equipment frame. 2. Hook the springs onto the tool frame. 6.
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Cutting system CAUTION: The drive belt can get 12. Hold the front edge of the cutting deck with both hands and pull forwards until it stops. pinched and break if gets caught under the cutting deck. Pull on the drive belt loop in the belt holder to stretch the drive belt before you push the cutting deck in.
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Cutting system Attaching the cutting deck 8. Push the equipment frame down. Lift the service lock to vertical position. WARNING: The drive belt tension spring can break and cause injury. Wear protec- tive glasses when you attach or remove the cutting deck. 1.
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Cutting system 11. Put the drive belt around the tension wheel (2). 4. Pull the drive belt to the rear under the product. Make sure that the drive belt runs as illustrated. Do not put it in the belt holder (2). 5.
Cutting system 5.7.5 Changing the belt on the cutting 5.7.3 Checking the parallelism of the deck cutting deck WARNING: Use protective gloves when The parallelism and cutting height must be adjusted you do work on the blades. when a new cutting deck is attached. Pinch hazard when working on the belt.
Cutting system 5.7.6 Adjusting the cutting height range 5.7.4 Adjusting the parallelism of the cutting deck 1. Remove the left side cover. 1. Remove the front cover and the right fender. 2. Remove the screws that hold the belt shield and lift off the belt shield.
Cutting system 5.7.7 Checking and adjusting ground pressure To get the best mowing result it is important to have correct pressure from the cutting deck on the underlying surface. 1. Make sure that the air pressure in the tyres is 150kPa (1.5 bar / 21.8 PSI).
Cutting system 5.7.8 Blades To examine the blades Put the cutting deck in servicing position. Look at the blades to see if they are damaged and if they need to be sharpened. Tighten the blade bolts with tightening tourqe 60Nm, in the direction of the arrows in the illstration.
Cutting system 5.7.9 To remove blades with bearings 6. Remove the protective washer. Do not lose the wedge. Dismantling 1. Remove the covers on the cutting deck. 2. Remove the belts. 3. Remove the screws that hold the the pulley. Lock the blade with a wooden block.
Cutting system 5.7.10 Sharpening and balancing the blades 1. Remove the blades. See “5.7.8 Blades” on page 61. 2. Attach the blade in a vice and sharpen with a sharpening file. 3. Balance the blade by attaching a punch horizontally in the vice as shown. Thread the hole in the centre of the blade over the punch and make sure that the blade is equally weighted.
Belts 5.8 Belts 5.8.1 Replacing the rear drive belt Removal 1. Lift up the cutting deck. 2. Remove the transmssion cover. 6. Remove the cooling fan. It is held in place by a nut. 3. Unhook the spring on the belt tensioner. 7.
Belts Assembly 6. Fit the hose holder in the middle and the belt guide for the centre belt. 1. Pull the belt through the opening under the pivot beraring and on the outside past the tensioners disk. 2. Pull the belt under the engine belt pulley and fit it on the engine belt pulley.
Auger 5.9 Auger 6. Place the belt accordiing to the picture. 5.9.1 Remove the auger kpl Removal 1. Pull the auger servicing position lever in NOT service mode. 7. Raise the visor and locked in place with a screw. 2. Till the seat and the collector. 3.
Auger 5.9.2 Remove the auger from auger kpl Removal 1. Remove the auger kpl from the product, see “5.9.1 Remove the auger kpl” on page 66. 2. Remove the screw and lift off the belt cover. (1) 3. Remove the belt and the belt pulleys, see “5.9.3 To remove the auger belt and gear wheels”...
Auger 5.9.3 To remove the auger belt and gear wheels Removal 1. Tilt the collector. 2. Remove the screw and lift off the belt cover (1). 3. Remove the upper screw (2) and lift off the belt and gear wheel (3). 4.
Auger 5.9.4 To remove blockage from the auger 4. Hold the auger maintenance tool and turn the auger counterclockwise 5 full turns. The cause of If the symbol on the auger button is red and the the blockage is sent down and out of the auger. product beeps continuously, the auger is blocked.
Specifications 6.1.4 Technical data – RC 318T / RC 320Ts AWD RC 318T RC 320Ts AWD Dimensions and weight Length without cutting deck, mm 2089 2089 Width without cutting deck, mm 1030 1030 Length including cutting deck, mm 2394 2394...
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Specifications Electrical system Type 12V, negative earthed 12V, negative earthed Battery LiFePO LiFePO Max. battery charging voltage, V 14.4 14.4 Max. battery charging current, A Spark plug XC92YC XC92YC Electrode gap, mm 0.75 0.75 Lamp LED GU5.3 12V LED GU5.3 12V 4.5-6.5W 4.5-6.5W Cutting deck...
Appendices and schedules 7.3 Troubleshooting schedule Checking cables and connectors: When checking cables, look for the following: Measure voltage: • Cable breaks Use a multimeter in voltage mode. Hold the red • Worn cable sheaths measuring probe against the measurement point and •...
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Appendices and schedules Fault Possible Steps Troubleshooting Action cause The product Deck Make sure that the lift lever is in upper position. does not engaged. start the P-brake not Check P-brake. Activate P-brake. start motor activated. when the Battery Make sure that the 15A fuse is intact. Replace fuse.
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Appendices and schedules Fault Possible Steps Troubleshooting Action cause The product Lift lever in Check that the microswitch changes the position Replace the stops when lowered when the lift lever is lifted. microswitch. the operator positon. leaves the Faulty Check the P-brake microswitch. Replace the seat with the P-brake...
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Appendices and schedules COLLECTION Fault Possible Steps Troubleshooting Action cause The auger Collection Make sure that the auger control switch turns Press the button until is not unactivated. green. the color changes activated and a short beep is when the heard.
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Appendices and schedules Fault Possible Steps Troubleshooting Action cause Bag dump Battery Measure the voltage between the battery Charge the battery. does not voltage. terminals. work. Blown fuse. Check 30A, 15A and 7.5A fuses. Replace fuse. Bag dump Check the bag dump switch. Replace the bag switch dump switch.
Appendices and schedules 7.4 Belt position diagram Engine pulley to transmission pulley Engine pulley to intermediate pulley Intermediate pulley to cutting deck Cutting deck Intermediate pulley to electric clutch Electric clutch to auger Timing belt on auger English – 83...