Stump Grinder Checklist for Safe Operation

Before you start the stump grinder

A cracked tooth, low oil or a loose fastener costs you time on site. None of them take long to catch before the engine starts.

That quick routine is part of normal daily operation for every piece of machinery we hire out.

Cutting teeth and wheel

Inspect the cutter wheel and check every tooth for chips, cracks or excessive wear before the machine goes anywhere near a stump. A worn tooth throws the wheel off balance and puts extra strain through the bearing.

If more than a couple of teeth are close to their wear limit, swap the full set instead of one or two at a time.

Uneven wear shortens the life of the wheel itself.

Fuel, oil and coolant

Check the engine oil level and colour. Old fuel left in the tank over winter is one of the most common causes of a grinder that won’t start.

Drain and refill the tank if the machine’s been sitting for more than a few weeks.

Check coolant sits at the correct mark, with no leaking around the hoses or radiator.

Hydraulics, belts and fasteners

Look for hydraulic fluid on the ground under the machine before you assume the hoses are fine.

A slow leak that goes unnoticed for a week can mean a burst hose mid-job.

Check belts for cracking or glazing, and run a hand along the main fasteners, since vibration works them loose over time.

Site preparation

A stump can hide buried cables, pipes or old fence wire that won’t show from the surface.

Before the wheel touches anything, walk the ground around the stump and check the job sheet for anything that could cause a problem.

Roots close to the surface can hide rocks in exactly the same way, and either one will wreck a tooth in seconds. Clearing the ground properly takes a few minutes and prevents the kind of damage that costs far more than the stump removal itself.

Ground and terrain

Soft or sloped terrain changes how a stump grinder handles.

A self-propelled or tracked machine from the FSI stump grinder range copes with uneven ground far better than a pedestrian unit.

Match the model to the site rather than forcing a machine to work somewhere it wasn’t built for. Check the ground is stable enough to take its weight before you position it.

Clear the area and mark an exclusion zone

Debris thrown from a grinding wheel can travel well beyond the immediate work area. Clear loose stones, wood and garden furniture back from the stump before you start.

Mark an exclusion zone of at least ten metres and keep bystanders and other tradespeople outside it while the machine runs.

PPE and equipment safety

Chainsaw-rated boots, eye protection and hearing protection are the minimum for anyone who operates or stands near a running grinder.

A face shield is worth adding too, given how much debris a wheel throws.

Check the emergency stop and any remote kill function work before you start, so the site stays safe from the first cut.

If it doesn’t respond first time, the machine goes back to the workshop for a fix before it goes anywhere near another job.

If the same crew’s doing tree work with a chipper on site that day, the PPE minimum doesn’t change.

Weekly and monthly maintenance

Daily checks catch what’s about to fail. Weekly and monthly checks are the regular maintenance that catches what’s wearing down more slowly.

Skip those slower checks and that gradual wear is what causes unplanned repairs halfway through a season.

Air filters and fasteners

Clean or replace the air filters on the schedule in the operator’s manual, more often if the machine works dusty sites regularly.

A clogged filter starves the engine and drags down performance long before it causes a full failure.

Re-torque fasteners monthly, since a daily check alone won’t catch what vibration loosens over weeks of grinding.

Teeth replacement and hydraulic checks

Don’t wait for a tooth to snap before replacing it.

Most manufacturers give an industry-standard wear limit in the manual, and running past it puts more load through the wheel and the bearing behind it.

Have the hydraulic system pressure-tested at the intervals your manual sets out.

Always order genuine FSI parts before the old set gives out completely, so the machine isn’t sitting idle waiting on stock.

After the stump grinding job is complete

Clear the mulch and debris from the grinding pit, and backfill with soil if the customer wants the area levelled.

Check the site for anything left behind, from tools to stray teeth.

Wash the machine down before it goes back on the trailer and give it a quick look over for condition.

Left-on grinding chips corrode metal parts within days in wet weather, so report any fault immediately rather than let it wait until the next job.

Stump grinding mistakes that cost the most time

Running on old fuel and skipping the teeth inspection cause more breakdowns than any mechanical fault does.

Both take next to no time to check, and both get skipped constantly when a crew’s trying to get through a job list.

A grinder that won’t start or cuts at half speed costs far more time than the check would have.

Ignoring a small hydraulic leak because the machine still runs eventually turns into a burst hose mid-job. That’s a lost afternoon and a call to the workshop, instead of a quick fix at the yard the week before.

Poor record keeping costs less visibly.

Crews who skip the logbook end up guessing when a tooth was last changed, and that guesswork costs at resale or on a warranty claim.

Stump grinder checklist: frequently asked questions

What do you need before grinding a stump?

You’ll need a grinder matched to the stump size, the right PPE and a marked exclusion zone. Get confirmation from the homeowner or site manager that no services run underneath the stump too. Skipping that check is the riskiest shortcut on this whole list.

What are the most common stump grinding mistakes?

The most common mistakes are running on old fuel, ignoring a small hydraulic leak, and letting teeth wear past their limit before replacing them. All three are quick checks that get skipped when a crew’s under time pressure.

What should you look for when choosing a stump grinder?

Match the machine to your typical stump size and site access. Pedestrian machines suit garden and small commercial jobs. Self-propelled and tracked models handle larger stumps, rougher terrain and bigger landscaping contracts. Remote-controlled options keep the operator clear of the cutting wheel on the trickiest sites.

Speak to the team at ILH Groundcare

Every FSI stump grinder we hire out at ILH Groundcare goes through this same list before it leaves Cumbernauld. That’s true whether it’s headed out with an arborist or into our own workshop for a service.

Whether you’re after a pedestrian unit for garden work or a tracked machine for a bigger contract, we stock both. Hire, buy, or get one serviced without going anywhere else.

If your own grinder’s due an inspection, or you’re ready to add a bigger model to the fleet, get in touch with our team.

Want to see a model working before you commit? Book a demo, or call us on 0141 775 9288 and we’ll get you booked in.