HUSQVARNA YTH24V54 (02) PDF DOCUMENT

For your HUSQVARNA YTH24V54, gasoline containing up to 10% ethanol (E10) is acceptable. The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gasoline. Purchase fuel in quantities that can be used within 30 days to ensure fuel freshness.

CAUTION: 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.

As the owner of a HUSQVARNA YTH24V54, your responsibilities are:

• Read and observe the safety rules.

• Follow a regular schedule in maintaining, caring for and using your tractor.

• Follow the instructions under “Maintenance” and “Storage” sections of the manual.

• Wear proper Personal Protective Equipment (PPE) while operating this machine, including (at a minimum) sturdy footwear, eye protection, and hearing protection. Do not mow in shorts and/or, open toed footwear.

• Always let someone know you are outside mowing.

A socket wrench set will make assembly easier. The following standard wrench sizes are required for assembling your HUSQVARNA YTH24V54:

• (2) 7/16″ wrenches

• (1) 1/2″ wrench

• (1) 3/4″ wrench

• (1) 3/4″ socket w/drive ratchet

• (1) 9/16″ wrench

• Utility knife

• Tire pressure gauge

• Pliers

• Flashlight

UNPACK CARTON

• Remove all accessible loose parts and parts cartons from the carton.

• Remove end panels and lay side panels flat.

• Check for any additional loose parts or cartons and remove.

TO ROLL TRACTOR OFF SKID

• Raise attachment lift lever to its highest position.

• Release parking brake by depressing brake pedal.

• Place freewheel control in “TRANSMISSION DISENGAGED” position.

• Roll tractor forward off skid.

WARNING: Do not short battery terminals by allowing a wrench or any other object to contact both terminals at the same time. Before connecting the battery, remove metal bracelets, wristwatch bands, rings, etc. The positive terminal must be connected first to prevent sparking from accidental grounding.

1. Determine battery location. The battery will be under the seat or the hood.

2. Lift the seat pan or hood to the raised position.

3. Remove the two terminal caps and discard.

4. First connect the RED battery cable to the positive (+) terminal with the bolt and nut. Tighten securely. Slide the terminal cover over the terminal.

5. Connect the BLACK grounding cable to the negative (-) terminal with the remaining bolt and nut. Tighten securely.

NOTE: If the battery is put into service after the month and year indicated on the label (located between terminals), charge the battery for a minimum of one hour at 6-10 amps.

1. Sit in the seat.

2. Lift up the adjustment lever (A) and slide the seat until a comfortable position is reached which allows you to press the clutch/brake pedal all the way down.

3. Release the lever to lock the seat in position.

1. SET PARKING BRAKE AND LOWER ATTACHMENT LIFT LEVER: Depress the clutch/brake pedal all the way down and hold. Pull the parking brake lever up and hold, release pressure from the clutch/brake pedal, then release the parking brake lever. The pedal should remain in the brake position. Ensure the parking brake will hold the tractor secure. Lower the attachment lift lever slowly to its lowest position.

2. ASSEMBLE FRONT GAUGE WHEEL: Assemble the front gauge wheel (W) to the front of the mower using the shoulder bolt (X), 1-1/4 O.D. washer (Y), and 3/8-16 locknut (Z).

3. POSITION MOWER: Turn the steering wheel to the left as far as it will go and position the mower on the right side of the tractor with the deflector shield (Q) to the right.

4. SLIDE MOWER UNDER TRACTOR: Ensure mower side suspension arms (A) are pointing forward. Slide the mower under the tractor until it is centered. Bring the belt forward and check for proper routing in all mower pulley grooves.

5. INSTALL ANTI-SWAY BAR (IF EQUIPPED): From the right side of the mower, insert the 90° end of the anti-sway bar (S) into the hole in the transaxle bracket (T). Pivot the integrated washer end of the bar towards the mower deck bracket on the right side, insert it into the hole in the rear mower bracket (D), and secure with a small washer and small retainer spring.

6. ATTACH MOWER SIDE SUSPENSION ARMS TO CHASSIS: Position the front hole in the side suspension arm (A) over the pin on the outside of the tractor chassis and secure with a large washer and large retainer spring (B). Repeat on the opposite side.

7. ATTACH REAR LIFT LINKS: Insert the rod end of the rear lift link (C) into the hole (U) in the tractor lift shaft suspension arm. Lift the rear corner of the mower and position the slot in the link assembly over the pin on the rear mower bracket (D) and secure with a large washer and large retainer spring. Repeat on the opposite side.

8. ATTACH FRONT LINK: Turn the steering wheel to position wheels straight forward. From the front, insert the rod end of the front link (E) through the front hole in the tractor front suspension bracket (F). Secure it with the large retainer spring (G). Insert the other end of the link (E) into the hole in the front mower bracket (H) and secure with a washer and small retainer spring (J).

9. INSTALL BELT ON ENGINE CLUTCH PULLEY: Disengage the belt tension rod (K) from the locking bracket (L). Install the belt onto the engine clutch pulley (M). Engage the belt tension rod (K) back on the locking bracket (L). Check for proper belt routing in all pulley grooves.

Before you operate your new HUSQVARNA YTH24V54, please review the following checklist:

✓ All assembly instructions have been completed.

✓ No remaining loose parts in carton.

✓ Battery is properly prepared and charged.

✓ Seat is adjusted comfortably and tightened securely.

✓ All tires are properly inflated. (For shipping purposes, the tires were overinflated at the factory).

✓ Be sure mower deck is properly leveled side-to-side/front-to-rear for best cutting results. (Tires must be properly inflated for leveling).

✓ Check mower and drive belts. Be sure they are routed properly around pulleys and inside all belt keepers.

✓ Check wiring. See that all connections are still secure and wires are properly clamped.

✓ Before driving tractor, be sure freewheel control is in “transmission engaged” position.

✓ Engine oil is at proper level.

✓ Fuel tank is filled with fresh, clean, regular unleaded gasoline.

✓ Become familiar with all controls, their location and function. Operate them before you start the engine.

✓ Be sure brake system is in safe operating condition.

✓ Be sure Operator Presence System and Reverse Operation System (ROS) are working properly.

✓ It is important to purge the transmission before operating your tractor for the first time.

• (A) ATTACHMENT LIFT LEVER: Used to raise and lower the mower or other attachments mounted to your tractor.

• (B) BRAKE PEDAL: Used for braking the tractor and starting the engine.

• (C) PARKING BRAKE: Locks clutch/brake pedal into the brake position.

• (D) THROTTLE CONTROL: Used for starting and controlling engine speed.

• (E) ATTACHMENT CLUTCH SWITCH: Used to engage the mower blades, or other attachments mounted to your tractor.

• (F) IGNITION SWITCH: Used for starting and stopping the engine.

• (G) REVERSE OPERATION SYSTEM (ROS) “ON” POSITION: Allows operation of mower or other powered attachment while in reverse.

• (H) LIGHT SWITCH: Turns the headlights on and off.

• (J) CRUISE CONTROL LEVER: Used to set forward movement of tractor at desired speed without holding the forward drive pedal.

• (K) FORWARD DRIVE PEDAL: Used for forward movement of tractor.

• (L) REVERSE DRIVE PEDAL: Used for reverse movement of tractor.

• (M) FREEWHEEL CONTROL: Disengages transmission for pushing or slowly towing the tractor with the engine off.

• (P) SERVICE MINDER/HOUR METER: Indicates when service is required for the engine and mower.

TO SET PARKING BRAKE

1. Depress brake pedal (B) all the way down and hold.

2. Pull parking brake lever (C) up and hold, release pressure from brake pedal (B), then release parking brake lever. Pedal should remain in brake position. Make sure parking brake will hold tractor secure.

STOPPING

• MOWER BLADES: To stop mower blades, place attachment clutch control in the “DISENGAGED” position.

• GROUND DRIVE: To stop ground drive, depress brake pedal into full “BRAKE” position.

• ENGINE: Move throttle control (D) between half and full speed (fast) position. Turn ignition key (F) to “STOP” position and remove key. Never use the cold weather starting position to stop the engine.

TO USE THROTTLE CONTROL

Always operate the engine at full speed (fast) for the best mower performance.

TO MOVE FORWARD AND BACKWARD

Start the tractor and release the parking brake. Slowly depress the forward (K) or reverse (L) drive pedal to begin movement. Ground speed increases the further down the pedal is depressed.

TO USE CRUISE CONTROL

With the forward drive pedal depressed to the desired speed, pull the cruise control lever (J) up and hold while lifting your foot off the pedal, then release the lever. To disengage, depress the brake pedal or tap on the forward drive pedal.

TO ADJUST MOWER CUTTING HEIGHT

The position of the attachment lift lever (A) determines the cutting height. Put the attachment lift lever in the desired cutting height slot. The cutting height range is approximately 1.5 to 3.5 inches.

• The average lawn should be cut to approximately 2-1/2″ during the cool season and to over 3″ during hot months.

• For best cutting performance, grass over 6″ in height should be mowed twice. Make the first cut relatively high; the second to the desired height.

TO ADJUST GAUGE WHEELS

Gauge wheels are properly adjusted when they are slightly off the ground when the mower is at the desired cutting height. This helps prevent scalping.

1. Adjust the mower to the desired cutting height.

2. With the mower in the desired height of cut position, assemble the gauge wheels so they are slightly off the ground. Install the gauge wheel in the appropriate hole and tighten securely.

3. Repeat for the opposite side, installing the gauge wheel in the same adjustment hole.

CAUTION: Do not drive up or down hills with slopes greater than 15° and do not drive across any slope.

• Choose the slowest speed before starting up or down hills.

• Avoid stopping or changing speed on hills.

• If stopping is absolutely necessary, push the brake pedal quickly to the brake position and engage the parking brake.

• To restart movement, slowly release the parking brake and brake pedal.

• Slowly depress the appropriate drive pedal to the slowest setting.

• Make all turns slowly.

WARNING: Backing up with the attachment clutch engaged while mowing is strongly discouraged. Turning the ROS “ON” to allow reverse operation with the attachment clutch engaged should only be done when the operator decides it is necessary to reposition the machine with the attachment engaged. Do not mow in reverse unless absolutely necessary.

To use the Reverse Operation System, only if you are certain no children or other bystanders will enter the mowing area:

1. Depress the brake pedal all the way down.

2. With the engine running, turn the ignition key counterclockwise to the ROS “ON” position.

3. Look down and behind before and while backing.

4. Slowly depress the reverse drive pedal to start movement.

5. When use of the ROS is no longer needed, turn the ignition key clockwise to the engine “ON” position.

1. Ensure the freewheel control is in the transmission engaged position.

2. Sit on the seat in the operating position, depress the brake pedal, and set the parking brake.

3. Move the attachment clutch control to the “DISENGAGED” position.

NORMAL STARTING (32°F/0°C and above)

• Move the throttle control to the fast position and click into place.

• Insert the key into the ignition and turn it clockwise to the “START” position. Release the key as soon as the engine starts.

• When the engine starts, attachments and ground drive can be used. If the engine doesn’t accept the load, restart and allow it to warm up for one minute.

• Leave the throttle control in the fast position while mowing.

COLD WEATHER STARTING (32°F/0°C and below)

• Move the throttle control beyond the fast position into the cold weather starting position.

• Insert the key and turn it to “START”. Release the key as soon as the engine starts.

• When the engine starts, move the throttle control back to the fast position to warm up.

• Leave the throttle control in the fast position while mowing.

CAUTION: Do not run the starter continuously for more than fifteen seconds per minute. If the engine does not start after several attempts, wait a few minutes and try again.

To ensure proper operation and performance, it is recommended that the transmission be purged before operating the tractor for the first time. This procedure will remove any trapped air inside the transmission.

1. Place the tractor safely on a level surface – that is clear and open – with the engine off and the parking brake set.

2. Disengage the transmission by placing the freewheel control in the disengaged position.

3. Sitting in the tractor seat, start the engine. After the engine is running, move the throttle control to the slow position. Disengage the parking brake.

4. CAUTION: At any time during this step, there may be movement of the drive wheels. Depress the forward drive pedal to the full forward position, hold for five (5) seconds and release. Depress the reverse drive pedal to the full reverse position, hold for five (5) seconds and release. Repeat this procedure three (3) times.

5. Shut-off the engine and set the parking brake.

6. Engage the transmission by placing the freewheel control in the engaged position.

7. Sitting in the tractor seat, start the engine. After the engine is running, move the throttle control to half (1/2) speed. Disengage the parking brake.

8. Drive the tractor forward for approximately 5 feet (1.5 m) then backwards for 5 feet (1.5 m). Repeat this driving procedure three times.

Your transmission is now purged and ready for normal operation.

Notes:

1 – Change more often when operating under a heavy load or in high ambient temperatures.

2 – Service more often when operating in dirty or dusty conditions.

3 – Replace blades more often when mowing in sandy soil.

CAUTION: Use only a replacement blade approved by the manufacturer of your tractor. Using a blade not approved by the manufacturer is hazardous, could damage your tractor and void your warranty.

BLADE REMOVAL

1. Raise mower to the highest position to allow access to the blades.

2. Protect your hands with gloves and/or wrap the blade with heavy cloth.

3. Remove the blade bolt by turning it counterclockwise.

BLADE INSTALLATION

1. Install the new or resharpened blade with the stamped “GRASS SIDE” facing the ground.

2. IMPORTANT: To ensure proper assembly, the center hole in the blade must align with the star on the mandrel assembly.

3. Install and tighten the blade bolt securely (45-55 Ft. Lbs./ 62-75 Nm). The special blade bolt is heat treated.

Change the oil after every 50 hours of operation or at least once a year if the tractor is not used for 50 hours in one year. Check the crankcase oil level before starting the engine and after each eight (8) hours of operation.

1. Be sure the tractor is on a level surface. Oil will drain more freely when warm. Catch oil in a suitable container.

2. Raise the hood. If needed, remove the lower dash cover.

3. Remove the oil fill cap/dipstick. Be careful not to allow dirt to enter the engine.

4. Remove the yellow cap from the end of the drain valve and install the drain tube onto the fitting.

5. Unlock the drain valve by pushing inward and turning counterclockwise. To open, pull out on the drain valve.

6. After the oil has drained completely, close and lock the drain valve by pushing inward and turning clockwise until the pin is in the locked position.

7. Remove the drain tube and replace the cap onto the bottom fitting of the drain valve.

8. Refill the engine with oil through the oil fill dipstick tube. Pour slowly and do not overfill. For approximate capacity, see the “PRODUCT SPECIFICATIONS” section.

9. Use the gauge on the oil fill cap/dipstick for checking the level. Keep oil at the “FULL” line on the dipstick. Tighten the cap onto the tube securely when finished.

ENGINE OIL FILTER: Replace the engine oil filter every season or every other oil change if the tractor is used more than 100 hours in one year.

Your tractor’s deck is equipped with a washout port as part of its deck wash system. It should be utilized after each use.

1. Drive the tractor to a level, clear spot on your lawn, near enough to a water spigot for your garden hose to reach. Make certain the tractor’s discharge chute is directed AWAY from your house, garage, parked cars, etc. Remove the bagger chute or mulch cover if attached.

2. Make sure the attachment clutch control is in the “DISENGAGED” position, set the parking brake, and stop the engine.

3. Thread the nozzle adapter onto the end of your garden hose.

4. Pull back the lock collar of the nozzle adapter and push the adapter onto the deck washout port at the left end of the mower deck. Release the lock collar to lock the adapter on the nozzle. Tug the hose to ensure the connection is secure.

5. Turn the water on.

6. While sitting in the operator’s position on the tractor, re-start the engine and place the throttle lever in the Fast position.

7. Move the tractor’s attachment clutch control to the “ENGAGED” position. Remain in the operator’s position with the cutting deck engaged until the deck is cleaned.

8. Move the tractor’s attachment clutch control to the “DISENGAGED” position. Turn the ignition key to the STOP position to turn the tractor’s engine off. Turn the water off.

9. Pull back the lock collar of the nozzle adapter to disconnect the adapter from the nozzle washout port.

10. Move the tractor to a dry area. Place the attachment clutch control in the “ENGAGED” position to remove excess water and to help dry before putting the tractor away.

WARNING: A broken or missing washout fitting could expose you or others to thrown objects from contact with the blade. Replace a broken or missing washout fitting immediately, prior to using the mower again. Plug any holes in the mower with bolts and locknuts.

1. Place the attachment clutch in the “DISENGAGED” position.

2. Lower the attachment lift to its lowest position.

3. Disengage the belt tension rod (K) from the lock bracket (L). (CAUTION: Belt tension rod is spring loaded. Have a tight grip on the rod and release slowly.)

4. Remove the mower belt from the electric clutch pulley (M).

5. Disconnect the front link (E) from the mower.

6. Go to either side of the mower and disconnect the mower suspension arm (A) from the chassis and the rear lift link (C) from the rear mower bracket (D) – remove retainer springs and washers.

7. Go to the other side of the mower and disconnect the suspension arm and rear lift link.

8. From the right side of the mower, disconnect the anti-sway bar (S) from the right rear mower bracket (D) – remove the retainer spring and washer and pull the mower toward you until the bar falls from the hole in the bracket.

9. Turn the tractor steering wheel to the left as far as it will go.

10. Slide the mower out from under the right side of the tractor.

MOWER DRIVE BELT REMOVAL

1. Park the tractor on a level surface. Engage the parking brake.

2. Lower the attachment lift lever to its lowest position.

3. Disengage the belt tension rod (K) from the lock bracket (L). (CAUTION: Belt tension rod is spring loaded. Have a firm grip on the rod and release slowly.)

4. Remove screws (P) from mandrel covers (Q) and remove the covers.

5. Remove any dirt or grass clippings which may have accumulated around the mandrels and the entire upper deck surface.

6. Remove the belt from the electric clutch pulley (M), both mandrel pulleys (R) and all idler pulleys (V).

MOWER DRIVE BELT INSTALLATION

1. Install the new belt around all mandrel pulleys (R) and around the idler pulleys (V) as shown.

2. Install the belt onto the electric clutch pulley (M).

3. Reassemble the mandrel covers (Q). Securely tighten all screws.

4. Engage the belt tension rod (K) on the locking bracket (L).

5. Raise the attachment lift lever to the highest position.

Ensure tires are properly inflated to the PSI shown on tires before leveling.

VISUAL SIDE-TO-SIDE ADJUSTMENT

If your lawn appears unevenly cut, determine which side of the mower is cutting lower. With a 3/4″ or adjustable wrench, turn the lift link adjustment nut (A) on that side to the left to lower the mower, or to the right to raise the mower. Each full turn changes the height by about 3/16″.

PRECISION SIDE-TO-SIDE ADJUSTMENT

1. With tires properly inflated, park the tractor on a level ground or driveway. Raise the mower to its highest position.

2. At both sides of the mower, position the blade at the side and measure the distance (A) from the bottom edge of the blade to the ground. The distance should be the same on both sides. If adjustment is necessary, use the Visual Adjustment instructions above.

FRONT-TO-BACK ADJUSTMENT

IMPORTANT: The deck must be level side-to-side. For best results, the front blade tip should be 1/8″ to 3/8″ lower than the rear tip when the mower is in its highest position.

1. Raise the mower to its highest position. Position any blade so the tip is pointing straight forward. Measure the distance (B) to the ground at the front and rear tip of the blade.

2. If adjustment is needed, go to the front of the tractor. With an 11/16″ or adjustable wrench, loosen jam nut A several turns to clear adjustment nut B.

3. With a 3/4″ or adjustable wrench, turn the front link adjustment nut (B) clockwise to raise the front of the mower, or counterclockwise to lower the front mower. Each full turn changes the height by about 1/8″.

4. Recheck measurements and adjust if necessary. Once correct, hold the adjustment nut in position and tighten the jam nut securely.

Park the tractor on a level surface and engage the parking brake. There is a belt installation guide decal on the bottom side of the left footrest for assistance.

BELT REMOVAL

1. Remove the mower.

2. Disconnect the clutch wire harness (A).

3. Remove the anti-rotation link (B) on the right side of the tractor.

4. Remove the belt from the stationary idler (C) and clutching idler (D).

5. Remove the belt from the centerspan idler (E).

6. Pull the belt slack toward the rear of the tractor. Carefully remove the belt upwards from the transmission input pulley and over the cooling fan blades (F).

7. Remove the belt downward from the engine pulley and around the electric clutch (G).

8. Slide the belt toward the rear of the tractor, off the steering plate (H) and remove from the tractor.

BELT INSTALLATION

1. Install the new belt from the tractor rear to the front, over the steering plate (H) and above the clutch brake pedal shaft (J).

2. Pull the belt toward the front of the tractor and roll the belt around the electric clutch and onto the engine pulley (G).

3. Pull the belt toward the rear of the tractor. Carefully work the belt down around the transmission cooling fan and onto the input pulley (F). Be sure the belt is inside the belt keeper.

4. Install the belt on the centerspan idler (E).

5. Install the belt through the stationary idler (C) and clutching idler (D).

6. Reinstall the anti-rotation link (B) on the right side of the tractor. Tighten securely.

7. Reconnect the clutch harness (A).

8. Ensure the belt is in all pulley grooves and inside all belt guides and keepers.

9. Install the mower.

WARNING: Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from batteries. Always wear eye protection when around batteries.

If “jumper cables” are used for emergency starting, follow this procedure. Your tractor is equipped with a 12 VOLT system. The other vehicle must also be a 12 VOLT system.

TO ATTACH JUMPER CABLES

1. Connect one end of the RED cable to the POSITIVE (+) terminal of each battery (A-B), taking care not to short against the tractor chassis.

2. Connect one end of the BLACK cable to the NEGATIVE (-) terminal (C) of the fully charged battery.

3. Connect the other end of the BLACK cable (D) to a good chassis ground, away from the fuel tank and battery.

TO REMOVE CABLES, REVERSE ORDER

1. Remove the BLACK cable first from the chassis and then from the fully charged battery.

2. Remove the RED cable last from both batteries.

Prepare your tractor for storage at the end of the season or if it will not be used for 30 days or more.

TRACTOR

• Clean the entire tractor.

• Inspect and replace belts, if necessary.

• Lubricate as shown in the Maintenance section.

• Be sure that all nuts, bolts and screws are securely fastened. Inspect moving parts for damage, breakage and wear. Replace if necessary.

• Touch up all rusted or chipped paint surfaces; sand lightly before painting.

BATTERY

• Fully charge the battery for storage. After a period of time, it may require recharging.

• Disconnect battery cables and clean the battery thoroughly to prevent corrosion and power leakage.

• If the battery is removed, do not store it directly on concrete or damp surfaces.

ENGINE – FUEL SYSTEM

• Empty the fuel tank by starting the engine and letting it run until the fuel lines and carburetor are empty.

• Alternatively, use a fuel stabilizer. Add stabilizer to gasoline in the fuel tank or storage container. Run the engine for at least 10 minutes after adding stabilizer to allow it to reach the carburetor. Do not empty the gas tank and carburetor if using fuel stabilizer.

ENGINE – ENGINE OIL

• Drain oil (with engine warm) and replace with clean engine oil.

ENGINE – CYLINDER(S)

• Remove spark plug(s).

• Pour one ounce (29.5 mL) of oil through the spark plug hole(s) into the cylinder(s).

• Turn the ignition key to the “START” position for a few seconds to distribute the oil.

• Replace with new spark plug(s).

OTHER

• Do not store gasoline from one season to another.

• If possible, store your tractor indoors and cover it with a suitable protective cover that does not retain moisture. Do not use plastic.

• IMPORTANT: NEVER COVER THE TRACTOR WHILE THE ENGINE AND EXHAUST AREAS ARE STILL WARM.

If your HUSQVARNA YTH24V54 will not start, check the following:

• Cause: Out of fuel. Correction: Fill fuel tank.

• Cause: Engine flooded. Correction: Wait several minutes before attempting to start.

• Cause: Bad spark plug. Correction: Replace spark plug.

• Cause: Dirty air filter. Correction: Clean/replace air filter.

• Cause: Dirty fuel filter. Correction: Replace fuel filter.

• Cause: Water in fuel. Correction: Empty fuel tank and carburetor, refill tank with fresh gasoline and replace fuel filter.

• Cause: Loose or damaged wiring. Correction: Check all wiring.

• Cause: Engine valves out of adjustment. Correction: Contact an authorized service center/department.

If your HUSQVARNA YTH24V54 is hard to start, check the following:

• Cause: Dirty air filter. Correction: Clean/replace air filter.

• Cause: Bad spark plug. Correction: Replace spark plug.

• Cause: Weak or dead battery. Correction: Recharge or replace battery.

• Cause: Dirty fuel filter. Correction: Replace fuel filter.

• Cause: Stale or dirty fuel. Correction: Empty fuel tank and refill tank with fresh, clean gas.

• Cause: Loose or damaged wiring. Correction: Check all wiring.

• Cause: Engine valves out of adjustment. Correction: Contact an authorized service center/department.

If the engine on your HUSQVARNA YTH24V54 will not turn over, check the following:

• Cause: Brake pedal not depressed. Correction: Depress brake pedal.

• Cause: Attachment clutch is engaged. Correction: Disengage attachment clutch.

• Cause: Weak or dead battery. Correction: Recharge or replace battery.

• Cause: Blown fuse. Correction: Replace fuse.

• Cause: Corroded battery terminals. Correction: Clean battery terminals.

• Cause: Loose or damaged wiring. Correction: Check all wiring.

• Cause: Faulty ignition switch. Correction: Check/replace ignition switch.

• Cause: Faulty solenoid or starter. Correction: Check/replace solenoid or starter.

• Cause: Faulty operator presence switch(es). Correction: Contact an authorized service center/department.

If the engine on your HUSQVARNA YTH24V54 clicks but will not start, check the following:

• Cause: Weak or dead battery. Correction: Recharge or replace battery.

• Cause: Corroded battery terminals. Correction: Clean battery terminals.

• Cause: Loose or damaged wiring. Correction: Check all wiring.

• Cause: Faulty solenoid or starter. Correction: Check/replace solenoid or starter.

If you experience a loss of power with your HUSQVARNA YTH24V54, check the following:

• Cause: Cutting too much grass/too fast. Correction: Raise cutting height/reduce speed.

• Cause: Throttle in cold weather starting position. Correction: Move throttle control to fast position.

• Cause: Build-up of grass, leaves, trash under mower. Correction: Clean underside of mower housing.

• Cause: Dirty air filter. Correction: Clean/replace air filter.

• Cause: Low oil level/dirty oil. Correction: Check oil level/change oil.

• Cause: Faulty spark plug. Correction: Clean and regap or change spark plug.

• Cause: Dirty fuel filter. Correction: Replace fuel filter.

• Cause: Stale or dirty fuel. Correction: Empty fuel tank and refill tank with fresh, clean gas.

• Cause: Water in fuel. Correction: Empty fuel tank and carburetor, refill tank with fresh gasoline and replace fuel filter.

• Cause: Spark plug wire loose. Correction: Connect and tighten spark plug wire.

• Cause: Dirty engine air screen/fins. Correction: Clean engine air screen/fins.

• Cause: Dirty/clogged muffler. Correction: Clean/replace muffler.

• Cause: Loose or damaged wiring. Correction: Check all wiring.

• Cause: Engine valves out of adjustment. Correction: Contact an authorized service center/department.

If you experience excessive vibration with your HUSQVARNA YTH24V54, check the following:

• Cause: Worn, bent or loose blade. Correction: Replace blade. Tighten blade bolt.

• Cause: Bent blade mandrel. Correction: Replace blade mandrel.

• Cause: Loose/damaged part(s). Correction: Tighten loose part(s). Replace damaged parts.

This indicates a faulty operator-safety presence control system. You should check the wiring, switches and connections. If not corrected, contact an authorized service center/department. CAUTION: DO NOT operate the machine until the problem is corrected.

If your HUSQVARNA YTH24V54 has an uneven cut, check for the following:

• Cause: Worn, bent or loose blade. Correction: Replace blade. Tighten blade bolt.

• Cause: Mower deck not level. Correction: Level mower deck.

• Cause: Buildup of grass, leaves, trash under mower. Correction: Clean underside of mower housing.

• Cause: Bent blade mandrel. Correction: Replace blade mandrel.

• Cause: Clogged mower deck vent holes from buildup of grass, leaves, and trash around mandrels. Correction: Clean around mandrels to open vent holes.

If the mower blades on your HUSQVARNA YTH24V54 will not rotate, check the following:

• Cause: Obstruction in clutch mechanism. Correction: Remove obstruction.

• Cause: Worn/damaged mower drive belt. Correction: Replace mower drive belt.

• Cause: Frozen idler pulley. Correction: Replace idler pulley.

• Cause: Frozen blade mandrel. Correction: Replace blade mandrel.

If you are experiencing poor grass discharge with your HUSQVARNA YTH24V54, check the following:

• Cause: Engine speed too slow. Correction: Place throttle control in “FAST” position.

• Cause: Travel speed too fast. Correction: Shift to slower speed.

• Cause: Wet grass. Correction: Allow grass to dry before mowing.

• Cause: Mower deck not level. Correction: Level mower deck.

• Cause: Low/uneven tire air pressure. Correction: Check tires for proper air pressure.

• Cause: Worn, bent or loose blade. Correction: Replace blade. Tighten blade bolt.

• Cause: Buildup of grass, leaves, trash under mower. Correction: Clean underside of mower housing.

• Cause: Mower drive belt worn. Correction: Replace mower drive belt.

• Cause: Blades improperly installed. Correction: Reinstall blades sharp edge down.

• Cause: Improper blades used. Correction: Replace with blades listed in parts manual.

• Cause: Clogged mower deck vent holes from buildup of grass, leaves, trash around mandrels. Correction: Clean around mandrels to open vent holes.

If the battery on your HUSQVARNA YTH24V54 will not charge, check the following:

• Cause: Bad battery cell(s). Correction: Replace battery.

• Cause: Poor cable connections. Correction: Check/clean all connections.

• Cause: Faulty regulator (if so equipped). Correction: Replace regulator.

• Cause: Faulty alternator. Correction: Replace alternator.

If you experience a loss of drive with your HUSQVARNA YTH24V54, check the following:

• Cause: Freewheel control in “disengaged” position. Correction: Place freewheel control in “engaged” position.

• Cause: Debris on steering plate (if equipped). Correction: See “CLEANING” in the Maintenance section.

• Cause: Motion drive belt worn, damaged, or broken. Correction: Replace motion drive belt.

• Cause: Air trapped in transmission during shipment or servicing. Correction: Purge transmission.

• Cause: Axle key missing. Correction: Install axle key at rear wheel.

This is caused by the engine throttle control not being set between the half and full speed (fast) position before stopping the engine. To correct this, move the throttle control between the half and full speed (fast) position before stopping the engine.

This is caused by the Reverse Operation System (ROS) not being “ON” while the mower or other attachment is engaged. To correct this, turn the ignition key to the ROS “ON” position as described in the Operation section.