Why a Few Minutes at the Yard Gate Pays Off

Machinery faults rarely announce themselves politely. They turn up at the far end of a wet field, with the light going and a trailer still to shift before the rain arrives. Almost every one of those breakdowns can be traced back to something that was perfectly visible a week earlier: a soft tyre, a weeping hydraulic hose, a wheel nut that had begun to back off. Good rural land management is largely a habit of checking small things often, and it costs far less time than the repair it prevents.

Getting Tyre Pressures Right for the Job

Pressures should be checked cold, before the machine has done any work, because a tyre that has been running for half an hour can read a good deal higher than it really is. Air pressure is also temperature-sensitive, so a spell of hard frost will drop readings noticeably overnight; a tyre that was correct in October may be soft on a January morning.

As a rough guide only, always working to your machine's load and inflation table:

• Rear tractor tyres doing field work often sit in the region of 0.8 to 1.4 bar (12 to 20 psi), with lower pressures used on soft ground and higher pressures for road travel and heavy draft work.
• Front tyres on a four-wheel-drive tractor should be set to match the rear ratio, not simply pumped up hard. Mismatched pressures increase driveline wind-up and wear the front axle.
• Trailer and implement tyres generally run much higher, often 2.0 to 2.8 bar (30 to 40 psi), so do not assume the tractor figures apply.
• Check valve cores for leaks and keep caps fitted. A missing cap lets in grit that holds the core open and produces the slow puncture you will blame on a thorn.

A tyre can look perfectly sound and still be a third down on pressure. Use a proper low-pressure gauge, not the side of your boot.

Tread, Sidewalls and the Damage You Cannot See

Agricultural tyres are not subject to the 1.6 mm car tread rule, but that is no reason to ignore wear. Lugs do the work of gripping and self-cleaning, and once they are worn down to roughly a third of their original height, traction in mud and on wet grass falls away sharply.

• Measure lug height with a steel rule at four points around each tyre and note the figure in a notebook.
• Look for cracking and perishing in the sidewalls, particularly on older tyres that sit in the sun.
• Dig out embedded stones, wire and stubble before they work their way deeper into the carcass.
• Inspect the rim for corrosion around the valve stem and check wheel nuts with a torque wrench. New or refitted wheels want re-torquing after the first ten hours of work, then at regular intervals.

Hydraulics: The Bits That Bite Back

Hydraulic systems reward cleanliness above almost everything else. A grain of grit on a quick coupler will score a spool valve or damage a pump, and neither is a cheap fix.

• Wipe couplers and their dust caps before connecting, and refit the caps straight away.
• Run your hand along hoses looking for chafing, bulges, cracks and exposed reinforcement. Hoses have a service life and should be replaced rather than taped up.
• Check oil levels with the machine level and the implement lowered, and top up only with the grade the manufacturer specifies — the wrong oil in a shared transmission and hydraulic system can ruin wet brakes and clutches.
• Never search for a leak with your bare hand. Pressurised fluid can penetrate skin and cause serious injury that needs urgent medical attention. Use a sheet of cardboard or paper instead.

Before working underneath anything, lower implements to the ground, chock the wheels, use a jack rated for the load, and support the machine on axle stands. Never rely on the tractor's own hydraulics to hold a load while you are beneath it.

Storing Spares Away from Damp and Frost

A dry, frost-free, well-ventilated shed earns its keep. Keep spare parts off the floor on pallets or shelving, and store filters, seals and bearings in sealed bags or lidded boxes rather than open crates where condensation can reach them.

• Keep rubber items — hoses, belts, O-rings — out of direct sunlight and away from electric motors, which give off ozone that perishes rubber.
• Store long hydraulic hoses in generous loops or on a reel, never in tight coils that kink and crack.
• Check coolant strength with a hydrometer before the first hard frost, and use winter-grade diesel or a suitable treatment so fuel does not wax in the filter.
• Keep fuel tanks reasonably full to limit condensation, and charge batteries regularly; a part-charged battery can freeze and crack.
• Store oils, lubricants and chemicals in a labelled, bunded, lockable cabinet with an eye wash and first aid kit nearby.

A sensible spares shelf holds spare filters, a fan belt, a quick coupler, a length of hose, jubilee clips, valve cores and caps, a good pressure gauge and a working torch.

A Pre-Work Routine Worth Keeping

Five minutes walking round the machine before you start saves hours later. Check pressures and tread, wheel nuts, hydraulic hoses and couplings, engine oil, coolant and fuel, then grease the points on schedule and test lights and the beacon. Write down anything you notice and deal with it before the next job rather than the next emergency. That single habit is what keeps a smallholding ticking over through the busiest weeks of the year.