Husqvarna R 422Ts AWD Replacing the air filter, Ignition system, Cleaning the engine and muffler

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Maintenance

Replacing the air filter

WARNING! The exhaust system is hot. Let it

!cool before starting to replace the air filter.

If the engine seems to lack power or does not run smoothly this may be because the air filter is clogged. It is therefore important to replace the air filter at regular intervals (see Maintenance/Maintenance Schedule for the correct service interval).

Replace the air filter as follows:

1Open the engine cover.

2Loosen the knobs holding the filter cover in place and remove it.

IMPORTANT INFORMATION

Never run the engine without the air filter fitted.

The filters must not be oiled. They must be fitted dry.

3 Pull up the filter at one edge and lift it out.

4Remove the foam rubber prefilter which is placed around the filter cartridge and clean using a mild detergent. Squeeze it dry in a clean cloth.

Clean the filter by knocking it with care against a hard surface. Do not use compressed air to clean the filter. Replace the air filter if it is still dirty. If the paper filter is still dirty it should be replaced with a new one.

Refit the pre-filter on the paper filter.

5Put the filter cartridge back in place. Make sure the filter cartridge is correctly fitted in the filter housing.

6 Refit the air filter cover.

Ignition system

The engine is equipped with an electronic ignition system. Only the spark plug requires maintenance.

For recommended spark plug, see Technical data.

IMPORTANT INFORMATION

Fitting the wrong spark plug type can damage the engine.

Replacing the spark plug

1Remove the ignition cable shoe and clean around the spark plug.

2Remove the spark plug with a 3/4” (19 mm) spark plug socket wrench.

3Check the spark plug. Replace the spark plug if the electrodes are burned or if the insulation is cracked or damaged. Clean the spark plug with a steel brush if it is to be reused.

4Measure the electrode gap with a gapping tool. The gap should be 0.75 mm/0.030”. Adjust as necessary by bending the side electrode.

5Reinsert the spark plug, turning by hand to avoid damaging the threads.

6Tighten the spark plug, once it touches the seating, with the spark plug spanner. Tighten the spark plug so that the washer is compressed. A used spark plug should be turned 1/8 of a turn from the seated position. A new spark plug should be turned a 1/4 turn from the seated position.

7Replace the ignition cable shoe.

IMPORTANT INFORMATION

Inadequately tightened spark plugs can cause overheating and damage the engine. Tightening the spark plug too much can damage the threads in the cylinder head.

Cleaning the engine and muffler

Keep the engine and muffler free from grass cuttings and dirt. Grass cuttings steeped in petrol or oil on the engine can increase the fire risk and impair cooling.

Allow the engine to cool before cleaning. If the dirt is mixed with oil, remove it using a degreasing agent otherwise just water and a brush.

Grass cuttings around the muffler dry quickly and constitute a fire risk. Brush or wash them off when the muffler is cold.

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Contents 422Ts AWD Contents After the first 8 hours Service journalPre-delivery service Introduction Symbols KEY to SymbolsKEY to Symbols Location of the controls What is WHAT?General use Safety InstructionsSafety instructions Insure your RiderThis is what you do Driving on slopesChildren MaintenanceTransport Presentation Mechanical Lifting Lever for Cutting Unit Cutting height adjustment leverCutting unit Lever for hydraulic lift of attachmentsFueling Lights and power outletExercise care and refuel outdoors see safety instructions SeatStart the engine DrivingBefore starting Remove the cables in the reverse order Starting the engine with a weak batteryConnecting the jump leads Stop the engine Driving the RiderBraking Once a Before Year Interval in hours Starting MaintenanceMaintenance schedule Daily Weekly At least MaintenanceCheck front and rear wheel rotation speed according to Removing of the machine hoods CleaningCan result in reduced braking ability Checking and adjusting the steering wiresAdjusting the parking brake Checking the fuel pump’s air filter Checking and adjusting of throttle wireChecking and adjusting the choke wire Replacement of fuel filterReplacing the spark plug Cleaning the engine and mufflerReplacing the air filter Ignition systemMain fuse Check the safety systemReplacing the light bulbs Checking the engine’s cooling air intake When the engine is running. Mind your fingersChecking the tyre pressure Replacing the front belt AssemblyReplacing the centre belt Trapping your hand Fitting the cutting headChecking the cutting unit’s parallelism Removing the cutting unitReplacing the cutting unit belts Adjusting the parallelism of the cutting unitHands when working with the blades Placing in the service position Service position for the cutting unitReplacing the blades Restoring from service position15mm Hands when working with the blades Checking the bladesLubrication Checking the engine’s oil level Lubricating the belt adjusterDriver seat Throttle and choke cables, lever bearingsReplacing the engine oil Lubricate the hydrostatic cable with linksChanging the oil filter Checking the transmission oil level Troubleshooting scheduleLubricate the parking brake wire Hydraulic oil filter changeEngine does not start Problem CauseEngine seems to have no power Battery does not chargeElectrical system Electrical and Hydraulic SystemsHydraulic System Guard ServiceStorage Winter storageTechnical data Vibration levels see note EC Declaration of Conformity Applies to Europe onlySound levels see note Page Page Original instructions 1156988-26 ´z+X§r¶6¨ ´z+X§r¶6¨

R 422Ts AWD specifications

The Husqvarna R 422Ts AWD is a versatile and robust riding lawn mower designed for homeowners seeking powerful performance and exceptional maneuverability. Engineered for a variety of terrains, this mower is particularly noted for its all-wheel drive (AWD) system, allowing for enhanced traction and stability, especially on slopes and uneven surfaces.

One of the standout features of the R 422Ts is its compact design, making it ideal for tighter spaces and smaller yards without sacrificing performance. This mower is equipped with a powerful 422cc engine, providing sufficient power to tackle dense grass and tough mowing conditions. The hydrostatic transmission ensures smooth and effortless speed control, giving users the ability to adjust their mowing pace according to the conditions.

The R 422Ts boasts a cutting width of 42 inches, allowing for efficient mowing coverage. Its effective cutting system utilizes a high-performance three-blade design, ensuring a clean and even cut with every pass. The mower's deck can be adjusted to several cutting heights, accommodating various grass types and seasonal changes.

Comfort and convenience are at the forefront of the R 422Ts design. The ergonomic seat is adjustable and cushioned, providing a comfortable ride even during extended mowing sessions. The intuitive instrument panel offers easy access to controls, including a choke, throttle, and electric starter, making operation straightforward for all users.

Additionally, the Husqvarna R 422Ts features a unique articulated steering system, which allows the rear wheels to follow the front wheels' path, resulting in tight turn capabilities. This design minimizes turf damage and maximizes efficiency, making it easier to navigate around obstacles.

The R 422Ts is compatible with various Husqvarna accessories, enhancing its versatility. Users can easily attach a mulch kit, bagger, or even a snow thrower, transforming this riding mower into an all-year-round utility vehicle.

In summary, the Husqvarna R 422Ts AWD combines power, precision, and adaptability. Its advanced features, including all-wheel drive, hydrostatic transmission, and ergonomic design, ensure that mowing is not only efficient but also enjoyable. Whether tackling a small yard or navigating complex landscaping, the R 422Ts stands out as an excellent choice for homeowners seeking a reliable mowing solution.
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