The Husqvarna RZ5424 is a 54-inch zero-turn riding mower with a 24 HP Kawasaki FR Series V-Twin engine, hydrostatic transmission, dual-lever steering controls, fabricated 11-gauge steel deck with reinforced edges, air induction mowing technology, and ergonomic high-back seat. This manual covers safety, operation, maintenance, troubleshooting, and specifications for optimal performance and longevity.
Key components: 24 HP Kawasaki engine, 54-inch fabricated steel deck, dual hydrostatic pumps, lap bar steering, ergonomic seat, 3.5-gallon fuel tank, and integrated headlights.
| Feature | Description |
|---|---|
| Engine | 24 HP Kawasaki FR Series V-Twin, OHV |
| Cutting Width | 54 inches |
| Transmission | Hydrostatic, dual pumps with integrated wheel motors |
| Steering | Dual lap bar control levers |
| Deck Construction | 11-gauge fabricated steel with reinforced edges |
| Cutting System | Air induction technology for improved grass lift |
| Seat | High-back, adjustable ergonomic seat |
| Fuel Capacity | 3.5 gallons |
| Headlights | Integrated LED headlights for low-light operation |
| Parking Brake | Automatic when levers are in neutral position |
Read all safety instructions before operation. Always wear appropriate protective equipment.
WARNING! Gasoline is flammable; refuel outdoors with engine off and cool. Avoid fire hazards.
Unpack and inspect all parts. Assembly requires basic tools.
CAUTION! Ensure all bolts are tightened to specified torque. Test controls before operation.
Familiarize yourself with all controls before starting engine.
Control Panel: Ignition key, throttle lever, choke, PTO engagement switch, hour meter.
Steering Levers: Move both forward to go straight; differential for turns. Return to neutral to stop.
Starting Procedure: 1. Sit on seat. 2. Engage parking brake. 3. Move levers to neutral. 4. Set throttle to half. 5. Turn key to START.
Mowing: Engage PTO at full throttle. Adjust speed with levers. For best cut, overlap passes by 2-3 inches.
Regular maintenance ensures optimal performance and extends mower life.
| Interval | Task |
|---|---|
| Before each use | Check tire pressure, inspect for damage, check oil level |
| Every 8 hours | Clean deck, check blade condition |
| Every 50 hours | Change engine oil, check air filter, grease fittings |
| Every 100 hours | Replace spark plugs, check drive belt tension |
| Every 300 hours | Change hydraulic fluid, inspect transmission |
| Seasonally | Sharpen/replace blades, check battery |
Kawasaki engine requires regular maintenance for reliable operation.
Tip: Always check oil level when engine is cold and on level surface.
Proper deck care ensures even cutting and prevents damage.
WARNING! Disconnect spark plug wire before performing any deck maintenance.
Proper storage prevents fuel system issues and corrosion.
CAUTION! Never store with gasoline in carburetor; drain or use stabilizer.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Dead battery, empty fuel, safety switch | Check battery charge; ensure fuel; sit on seat; check PTO disengaged. |
| Uneven cutting | Dull blades, deck not level, low tire pressure | Sharpen blades; level deck; inflate tires evenly. |
| Loss of power | Clogged air filter, old spark plugs, dirty deck | Clean/replace air filter; change plugs; clean deck underside. |
| Hydrostatic drive sluggish | Low hydraulic fluid, air in system | Check fluid level; purge air per manual. |
| Excessive vibration | Damaged blade, loose spindle, debris | Inspect blades; tighten spindle bolts; remove debris. |
Reset: Turn key off and wait 30 seconds if safety switch engages.
Husqvarna RZ5424 includes 3-year limited warranty for residential use. Warranty covers defects in materials and workmanship; does not cover normal wear, improper maintenance, or commercial use. For warranty service, contact authorized Husqvarna dealer with proof of purchase.
Customer Support: 1-800-487-5962; www.husqvarna.com/us
Parts & Manuals: Visit website for illustrated parts diagrams and manual downloads.