Husqvarna GTH225 Before Starting the Engine, Check Engine OIL Level See Fig, ADD Gasoline

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OPERATION

BEFORE STARTING THE ENGINE

CHECK ENGINE OIL LEVEL (See Fig. 15)

•The engine in your tractor has been shipped, from the factory, already filled with summer weight oil.

•Check engine oil with tractor on level ground.

•Unthread and remove oil fill cap/dipstick; wipe oil off. Reinsert the dipstick into the tube and rest oil fill cap on the tube. Do not thread the cap onto the tube. Remove and read oil level. If necessary, add oil until “FULL” mark on dipstick is reached. Do not overfill.

•For cold weather operation you should change oil for easier starting (See “OIL VISCOSITY CHART” in the Customer Responsibilities section of this manual).

•To change engine oil, see the Customer Responsibili- ties section in this manual.

OIL FILL

CAP/DIPSTICK

FIG. 15

ADD GASOLINE

•Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. (Use of leaded gasoline will increase carbon and lead oxide deposits and reduce valve life). Do not mix oil with gasoline. Purchase fuel in quantities that can be used within 30 days to assure fuel freshness.

IMPORTANT: WHEN OPERATING IN TEMPERATURES BELOW 32°F(0°C), USE FRESH, CLEAN WINTER GRADE GASOLINE TO HELP INSURE GOOD COLD WEATHER STARTING.

WARNING: Experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. Drain the gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel next season. See Storage Instructions for additional information. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.

CAUTION: Fill to bottom of gas tank filler neck. Do not overfill. Wipe off any spilled oil or fuel. Do not store, spill or use gasoline near an open flame.

TO START ENGINE (See Fig. 11)

When starting the engine for the first time or if the engine has run out of fuel, it will take extra cranking time to move fuel from the tank to the engine.

•Be sure freewheel control is in the transmission engaged position.

•Sit on seat in operating position, depress clutch/brake pedal and set parking brake.

•Place motion control lever in neutral (N) position.

•Move attachment clutch to “DISENGAGED” position.

•Move throttle control to fast position

•Pull choke control out for a cold engine start attempt. For

a warm engine start attempt the choke control may not be needed.

NOTE: Before starting, read the warm and cold starting procedures below.

•Insert key into ignition and turn key clockwise to “START” position and release key as soon as engine starts. Do not run starter continuously for more than fifteen seconds per minute. If the engine does not start after several attempts, push choke control in, wait a few minutes and try again. If engine still does not start, pull the choke control out and retry.

WARM WEATHER STARTING (50° F and above)

•When engine starts, slowly push choke control in until the engine begins to run smoothly. If the engine starts to run roughly, pull the choke control out slightly for a few seconds and then continue to push the control in slowly.

•The attachments and ground drive can now be used. If the engine does not accept the load, restart the engine and allow it to warm up for one minute using the choke as described above.

COLD WEATHER STARTING (50° F and below)

•When engine starts, slowly push choke control in until the engine begins to run smoothly. Continue to push the choke control in small steps allowing the engine to accept small changes in speed and load, until the choke control is fully in. If the engine starts to run roughly, pull the choke control out slightly for a few seconds and then continue to push the control in slowly. This may require an engine warm-up period from several seconds to several minutes, depending on the temperature.

AUTOMATIC TRANSMISSION WARM UP

•Before driving the unit in cold weather, the transmission should be warmed up as follows:

•Be sure the tractor is on level ground.

•Place the motion control lever in neutral. Release the parking brake and let the clutch/brake slowly return to operating position.

•Allow one minute for transmission to warm up. This can be done during the engine warm up period.

•The attachments can be used during the engine warm- up period after the transmission has been warmed up and may require the choke control be pulled out slightly.

NOTE: If at a high altitude (above 3000 feet) or in cold temperatures (below 32 F) the carburetor fuel mixture may need to be adjusted for best engine performance. See “TO ADJUST CARBURETOR” in the Service and Adjustments section of this manual.

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Contents GTH225 Safe Operation Practices for Ride-On Mowers Safety RulesBecome ALERT!!! Your Safety is IN- Volved Table of Contents Contents of Hardware Pack To Remove Tractor from Carton AssemblyTools Required for Assembly HOW to SET UP Your TractorTo Attach Front Bumper See Fig To Attach Nose Roller See FigAssemble Gauge Wheels to Mower Deck See Fig To Convert to Bagging or Discharging To SET UP Your Mower for Mulching See FigTo Install Mulcher Plate See Fig Install Mower and Drive Belt See FigsCheck Brake System Check Tire PressureCheck Mower Levelness Check for Proper Position of ALL Belts3CHECKLIST Operation Know Your Tractor HOW to USE Your Tractor Towing Carts and Other Attachments To Operate Mower See FigTo Operate on Hills To Transport See FigsTo Start Engine See Fig Before Starting the EngineCheck Engine OIL Level See Fig ADD GasolinePurge Transmission Mowing TipsMulching Mowing Tips Before Each USE Lubrication ChartCustomer Responsibilities General RecommendationsTractor Engine Spark Plugs CleaningEngine OIL Filter MufflerTo Remove Mower See Fig Service and AdjustmentsTo Install Mower To Level Mower HousingTo Replace Mower Blade Drive Belt See Fig To Replace Mower Drive BeltSee Fig To Adjust Attachment Clutch See FigTo Adjust Brake See Fig To Replace Motion Drive BeltFront Wheel Camber Transmission REMOVAL/REPLACEMENTTo Adjust Steering Wheel Alignment Front Wheel TOE-IN AdjustmentTo Replace Headlight Bulb Interlocks and RelaysTo Replace Fuse To Adjust Carburetor See Fig To Remove Hood and Grill Assembly See FigTo Adjust Throttle Control Cable See Fig To Adjust Choke Control See FigsEngine OIL StorageOther Fuel SystemProblem Cause Correction Troubleshooting PointsOFF Engine Connector Tractor Connector SchematicElectrical KEY Part Description Chassis and Enclosures Repair Parts Ground Drive KEY Part NO. NO. Description Steering Assembly Adapter, Wheel Steering Spark Arrester KIT EngineSeat Assembly Wheels & Tires Decals532171211 Retainer, Spring Lift AssemblyMower Deck Repair Parts Sighting Guide Suggested Guide for Sighting Slopes for Safe OperationLimited Warranty Warranty StatementRev 10.27.99 JH/TR/JH

GTH225 specifications

The Husqvarna GTH225 is a standout riding mower designed for those who seek a blend of performance, comfort, and reliability in lawn care. Engineered for durability and versatility, this model is perfect for homeowners who manage medium to large yards.

At the heart of the GTH225 is a robust and efficient engine. Powered by a 22 HP Kohler engine, it delivers consistent performance for cutting even the toughest grass. The engine is designed to ensure smooth operation and offers the torque needed for impressive cutting power. Additionally, the hydrostatic transmission allows for seamless speed adjustments, providing an easy and responsive driving experience.

One of the key features of the Husqvarna GTH225 is its cutting deck, which spans a wide 48 inches. This substantial deck size means fewer passes are required to cover large areas, making lawn maintenance quicker and more efficient. The cutting height can be adjusted from 1.5 to 4 inches, catering to different grass types and seasonal growth patterns. The deck is also equipped with high-quality blades, which provide clean cuts and a professional finish.

Comfort is a major consideration with the GTH225. The operator's seat is well-cushioned and ergonomically designed, enabling users to mow for extended periods without discomfort. The steering wheel and controls are intuitively placed, ensuring that operation is user-friendly and requires minimal effort.

The Husqvarna GTH225 is also built to enhance maneuverability. With a tight turning radius, it easily navigates around obstacles like trees and flower beds. This agility is complemented by its durable construction, featuring a sturdy frame that can withstand the rigors of regular use.

Another innovative feature is the optional mulching kit, which enhances the mower's versatility. It allows for superior grass recycling, thereby enriching the lawn without the need for bagging clippings. Additionally, the model can be equipped with a tow hitch for added functionality, enabling users to attach various gardening tools or trailers.

In line with Husqvarna’s commitment to environmental sustainability, the GTH225 is designed with fuel efficiency in mind, helping homeowners reduce their carbon footprint while keeping their lawns pristine. Overall, the Husqvarna GTH225 combines advanced technology, comfort, and performance, making it a reliable choice for anyone serious about maintaining their outdoor space.
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