Garden Machinery Care: Ten Minutes That Prevent Most Repairs

Garden machinery is expensive, and it almost never fails because it wore out. It fails because it was put away covered in wet grass, stored for six months with stale fuel in the tank, and run all season with a blade blunt enough to tear rather than cut. Every one of those is preventable in minutes, and every one of them costs real money when it is not.

This guide covers the after-use routine that takes less time than putting the machine away badly, the blade and fuel issues that cause most spring no-starts, the differences between petrol and battery equipment, and — importantly — where the line sits between sensible home maintenance and work that belongs with a professional.

Safety First, Every Time

Before any cleaning, sharpening or inspection, the machine must be genuinely unable to start:

• Petrol: engine off and cool, spark plug lead disconnected.
• Cordless: battery removed from the machine, not merely switched off.
• Electric: unplugged at the socket.
• Wear gloves when handling blades — they are sharper than they look even when blunt enough to tear grass.
• Let it cool. Engines and motors stay hot long after they stop, and grass sticks harder to hot metal anyway.
• Eye and ear protection whenever the machine is running, as the hand tools guide notes — easy to skip, impossible to undo.

The After-Use Routine

The FAQ's list, which is the highest-value few minutes in machinery ownership:

1. Clear the debris. Grass from under a mower deck, clippings from trimmer heads, sap and leaves from hedge cutter blades. Wet material left on metal holds moisture and corrodes; dried material needs a scraper next time.
2. Wipe the cutting surfaces and, on hedge cutters especially, apply a light oil or resin remover, since sap is corrosive and gums the blade action.
3. Check the vents and air intakes are clear — blocked cooling is a common cause of overheating and motor failure.
4. Look for loose bolts, damaged cables and cracked guards, and anything that sounded or felt wrong during use. Problems announce themselves before they become failures.
5. Store it dry and covered, not on a damp floor or under a leaking roof.

Blades: The Thing That Affects Results Most

The FAQ makes the case; here is what it means in practice. A blunt mower blade tears grass rather than cutting it, and the torn tips brown off within days, giving the whole lawn a faded, straw-coloured cast that people usually blame on weather or feeding. Torn grass also loses water faster and is more susceptible to disease — which the lawn care guide identifies as one of the commonest self-inflicted lawn problems.

• Sharpen roughly once a season for a domestic lawn, more if the area is large or you hit stones.
• Balance matters. An unbalanced blade vibrates and damages bearings, so material must come off evenly.
• Replace rather than sharpen a blade that is cracked, badly nicked or worn thin — this is not the place to economise.
• Hedge cutter and trimmer blades also dull; sharp blades cut cleanly, which matters for plant health exactly as the pruning guide argues.
• If sharpening yourself gives you pause, a repair shop will do it cheaply — and given the power-source safety requirement, this is a reasonable job to pay for.

Petrol Machines: Fuel Is the Main Enemy

The FAQ names it plainly: stale petrol is the biggest single cause of machinery that will not start in spring. Modern fuel degrades over months, and ethanol content attracts moisture and can damage fuel system components — which is how carburettors gum up over a winter.

Buy fuel in quantities you will use rather than storing large amounts for months, store it in proper approved containers somewhere cool and ventilated, and observe the obvious fire precautions.

Battery Machines: Look After the Batteries

Cordless equipment removes most of the seasonal ritual — no stale fuel, no oil, no spark plug — but the FAQ's battery rules matter because the batteries are the expensive part:

• Store indoors at room temperature, not in a freezing or baking shed.
• Store at partial charge, not flat and not full — many manufacturers suggest around half — and top up occasionally over long periods rather than leaving them untouched for months.
• Keep contacts clean and dry, and never charge a wet or damaged battery.
• Let batteries cool before charging after heavy use.
• Stay within one battery system across your tools where you can — it saves considerable money, as the hand tools guide notes about powered equipment generally.
• The machine still needs the ordinary care: clean after use, clear vents, sharpen blades, check cables and guards.

Choosing Machinery You Will Actually Maintain

Maintenance burden is worth weighing at the point of purchase, because the machine you look after is worth more than the machine you meant to. Battery equipment removes fuel, oil and spark plugs from the equation entirely, which for a small garden is often decisive — less to go wrong, less to store, and no seasonal fuel ritual. Petrol still wins on sustained power and runtime for larger areas, at the cost of a genuine maintenance schedule. Corded electric sits between the two: minimal maintenance, unlimited runtime, and the permanent nuisance of a cable. And manual tools deserve more consideration than they get — a push mower for a small lawn, shears for a short hedge run, and a rake instead of a blower all need nothing beyond sharpening and cleaning, make no noise, and never fail to start in spring. The honest question before buying anything powered is whether the area genuinely justifies it, because for many small gardens the manual option is quieter, cheaper and permanently ready.

The Seasonal Service

Winter is the natural window, for the reason the winter checklist gives: it is when nothing needs the machine, and when you have time. The end-of-season routine:

1. Clean thoroughly — a proper clean rather than the after-use tidy, including the underside of decks and inside housings where accessible.
2. Deal with the fuel per the storage approach above.
3. Change oil, clean or replace the air filter, and service the spark plug if petrol.
4. Sharpen or replace blades so spring starts with a machine that cuts properly.
5. Grease and lubricate what the manual specifies, and oil bare metal lightly against rust.
6. Charge and store batteries correctly, indoors.
7. Inspect cables, guards and safety devices, and replace anything damaged before it is needed.
8. Store dry, covered and off the ground, ideally with the manual kept somewhere you will find it.

Booking a professional service for petrol machinery every year or two is reasonable and often cheaper than the repair that follows neglect — and repair shops are least busy in winter, which is worth knowing.

Safe Storage

Where machinery lives affects both its lifespan and household safety. The requirements are straightforward: dry and ventilated, since damp is what corrodes metal and perishes cables; off the ground, on a shelf, hooks or a pallet, so nothing sits in a puddle after heavy rain; and covered against dust without wrapping in anything that traps condensation. Fuel is stored separately in approved containers, somewhere cool and ventilated and away from ignition sources — not in a hot greenhouse or beside a boiler. Blades and cutting tools should be stored so nobody reaches into them by accident, and in households with children, powered equipment and fuel both warrant genuinely secure storage rather than a shed with a token latch. Finally, keep the manuals somewhere findable: taped inside a cupboard door or filed together, since the specific service intervals and part numbers they contain are exactly what you need and never remember.

Common Problems and Likely Causes

Hiring Instead of Owning

Some machinery is used once a year or once ever, and owning it means storing, maintaining and eventually disposing of something that spends its life idle. Scarifiers, aerators, chippers, turf cutters, powered augers and serious chainsaws all fall into this category for most domestic gardens, and hiring for a day gives you a better, properly serviced machine for a fraction of the cost — with none of the winter fuel ritual afterwards. The same logic supports sharing between neighbours, which is how many streets end up with one good hedge trimmer between four gardens. When hiring, ask for a demonstration if the machine is unfamiliar, check the safety guards and cut-offs before leaving the depot, and confirm what protective equipment is included. And apply the honest test the hand tools guide suggests: buy what you use regularly, hire what you use annually, and the shed stays useful rather than becoming a museum of expensive decisions.

What to Leave to a Professional

• Anything electrical inside the casing — motor and wiring faults are not a home job.
• Fuel system work beyond filters and plugs, particularly carburettor cleaning and adjustment.
• Chainsaws, where sharpening technique, chain tension and safety systems all matter enormously and the consequences of getting them wrong are severe.
• Anything with a damaged safety guard or cut-off switch, which should be repaired properly or the machine retired.
• Machines you cannot identify parts for, where guessing risks both the machine and yourself.

The principle from the pruning guide applies here too: knowing where your limits are is a skill, not a shortcoming — and machinery injuries are among the most serious in gardening.

The Classic Mistakes

1. Putting the machine away dirty with wet grass caked underneath.
2. Storing petrol equipment part-full of untreated fuel over winter.
3. Running a blunt blade all season and blaming the lawn.
4. Leaving batteries in a freezing shed, flat or fully charged, for months.
5. Working on a machine without disconnecting the power source.
6. Ignoring the manual, which contains the specifics this guide can only generalise.
7. Waiting for spring to discover the machine needed a service.

The Bottom Line

Garden machinery lasts for years on very little attention, provided that attention is given consistently rather than heroically. After every use: disconnect the power, let it cool, clear the debris, wipe the blades, check for anything loose or damaged, and store it dry. Once a season: sharpen or replace blades, and give petrol machines their oil, filter and plug service. At the end of the season: deal with the fuel properly, because stale petrol causes more spring no-starts than everything else combined, and bring batteries indoors at partial charge. Read the manual for the specifics, hand the electrical and fuel-system work to someone qualified, and accept that ten minutes after each use is the cheapest repair bill you will ever pay.