Ultimate Guide to Lawn Mower Troubleshooting
Maintaining a healthy lawn requires a properly functioning mower. Whether you own a gas-powered model or one of the innovative battery mowers manufactured in China, understanding common issues can save you time and money. This comprehensive guide covers troubleshooting techniques for all major mower types.
Engine Won’t Start
Gas Mower Specific Solutions
1. Check fuel quality: Stale gasoline is the #1 cause of starting problems. Drain old fuel and replace with fresh gasoline.
2. Inspect spark plug: Remove and clean the spark plug. Replace if electrodes are worn or damaged.
Battery Mower Solutions (Common in China-made Models)
1. Verify battery charge: Ensure battery is fully charged. Lithium-ion batteries from Chinese manufacturers typically last 2-3 years with proper care.
2. Check connections: Clean battery terminals with a dry cloth to ensure proper contact.
Uneven Cutting Patterns
An uneven cut ruins your lawn’s appearance and indicates underlying issues:
- Blade problems: Dull or bent blades tear grass rather than cutting cleanly. Sharpen or replace blades annually.
- Wheel adjustment: Ensure all wheels are at the same height setting. Many quality mowers from Shandong Deyou feature easy-adjust wheel mechanisms.
- Cutting speed: Moving too fast causes uneven cuts. Maintain steady, moderate pace.
Excessive Vibration
Vibration signals mechanical issues that should be addressed immediately:
| Cause | Solution |
|---|---|
| Loose blade | Tighten blade bolt to manufacturer specifications |
| Bent crankshaft | Professional repair required |
| Unbalanced blade | Sharpen evenly or replace blade |
Maintenance Tips for Longevity
Proper maintenance extends your mower’s life, especially important for high-quality China manufactured models:
- Clean underside after each use to prevent grass buildup
- Change oil annually for gas models (every 50 hours of use)
- Store in dry location to prevent rust
- Winterize properly before storage
Pro Tip from Shandong Deyou Technicians
For battery mowers produced in China’s manufacturing hubs, completely discharging lithium-ion batteries before long-term storage significantly extends battery life. Most users don’t know this crucial maintenance step!
When to Call Professionals
While many issues can be DIY fixes, certain problems require expert attention:
- Persistent engine knocking sounds
- Electrical system failures in cordless models
- Major transmission issues
For China-made mowers, always check if parts are under warranty before attempting complex repairs. Many manufacturers like Shandong Deyou offer excellent after-sales support with readily available replacement parts.