Wood Chipper Maintenance Guide: Blade Sharpening & Storage

Proper maintenance is the difference between a wood chipper that works effortlessly for years and one that jams, vibrates and underperforms. The two biggest factors are blade condition and correct storage. This practical UK-focused guide explains how often to sharpen blades, how to do it safely, and how to store your chipper properly to extend its life.

⭐ Recommended Wood Chippers

• Garden Shredder (Electric or Battery)
Great for breaking down smaller woody prunings, hedge cuttings, and soft branches into mulch-friendly pieces — ideal for composting or spreading on beds.
👉 Click here to see top options

• Wood Chipper
Trim and reduce the volume of woody material at the source so it’s easier to handle and shred with a chipper alternative.
👉 Click here to see top options

• Manual Pruning Saw / Folding Hand Saw
A safe hand-operated saw for cutting thicker stems and branches into manageable lengths before shredding or composting.
👉 Click here to see top options

• Loppers (Long-Handled Pruners)
Excellent for cutting thicker green and semi-woody stems — helps reduce waste size and makes handling easier.
👉 Click here to see top options

• Garden Waste Bags & Yard Trolley
Heavy-duty collection bags and a garden cart/trolley make moving and storing prunings simpler — useful when preparing material for compost or removal.
👉 Click here to see top options

Why Wood Chipper Maintenance Matters

Neglected chippers suffer from:
✔ Poor cutting performance
✔ Frequent jamming and blockages
✔ Excessive vibration
✔ Motor or engine strain
✔ Shortened lifespan

Good maintenance keeps your chipper safer, faster and cheaper to run.

🔪 Blade Sharpening: The Most Important Job

How Often Should You Sharpen Chipper Blades?

As a general guide:
• Light use: Every 20–30 hours
• Regular garden use: Every 10–15 hours
• Heavy or hardwood use: Inspect after every session

👉 If the chipper struggles to pull wood in or produces stringy mulch, the blades are dull.

Signs Your Blades Need Sharpening

✔ Wood feeds slowly or stalls
✔ Chipper vibrates more than usual
✔ Mulch looks torn rather than clean-cut
✔ You’re forcing material into the hopper

Never keep using dull blades — it strains motors and engines.

How to Sharpen Wood Chipper Blades (Safely)

Always check your manual first, but the general process is:

1. Disconnect power
   • Unplug electric models
   • Remove spark plug lead on petrol machines
2. Remove the blades
   • Mark blade orientation before removal
   • Keep bolts organised
3. Sharpen evenly
   • Use a bench grinder or file
   • Maintain the original blade angle
   • Remove minimal metal — don’t reshape
4. Balance matters
   • Uneven sharpening causes vibration
   • Sharpen both blades equally
5. Reinstall securely
   • Torque bolts correctly
   • Check clearances before use

👉 If blades are chipped, cracked or badly worn — replace them, don’t sharpen.

Sharpening vs Replacing Blades

🧽 Cleaning After Use (Often Overlooked)

After each session:
✔ Clear packed debris from chute
✔ Brush off sap and wood fibres
✔ Check blade housing for buildup
✔ Inspect bolts and guards

Dried sap hardens and increases wear if left.

🏠 Proper Wood Chipper Storage (Critical for Longevity)

Short-Term Storage (Between Uses)

✔ Store in a dry, sheltered area
✔ Keep hopper clear of debris
✔ Allow machine to fully dry
✔ Avoid leaving outside uncovered

Long-Term / Winter Storage

Electric Chippers
✔ Clean thoroughly
✔ Store indoors or under waterproof cover
✔ Coil cables loosely
✔ Protect from frost and damp

Petrol Chippers
✔ Drain fuel or use stabiliser
✔ Change oil if due
✔ Remove spark plug and add a drop of oil to cylinder
✔ Clean air filter
✔ Cover fully and store dry

👉 Moisture is the biggest killer of chippers.

🛠 Extra Maintenance Checks Worth Doing

✔ Check bolts regularly — vibration loosens fittings
✔ Inspect bearings for noise or play
✔ Ensure safety switches function correctly
✔ Lubricate moving parts if specified
✔ Replace worn belts promptly

Common Maintenance Mistakes to Avoid

❌ Using dull blades “just one more time”
❌ Sharpening blades unevenly
❌ Ignoring vibration
❌ Storing machines damp
❌ Leaving fuel in petrol chippers all winter

These mistakes shorten machine life dramatically.

Final Thoughts

Wood chipper maintenance doesn’t need to be complicated — but it must be consistent. Sharp blades improve cutting, reduce jams and protect motors. Proper storage prevents corrosion, electrical faults and starting problems.

Look after your chipper and it will:
✔ Chip faster
✔ Jam less
✔ Last longer
✔ Stay safer

A little time spent on blade sharpening and storage saves money, effort and frustration in the long run.