October 2026 | Machinery Advice & Maintenance

As the colder months approach, preparing your excavator for winter should be high on your maintenance checklist. From freezing temperatures and heavy rainfall to muddy ground conditions, winter can put additional strain on construction machinery.

Whether you're operating a Takeuchi mini excavator, a larger tracked machine or managing an entire fleet, a little preparation now can help prevent costly breakdowns, reduce downtime and keep your projects moving throughout winter.

At D&J Machinery Sales, we know how important reliable machinery is to your business. That's why we've put together seven essential checks to help keep your excavator working when the temperatures drop.

1. Check Your Battery and Electrical System

Cold weather can significantly affect battery performance, particularly on machines that are used infrequently or left standing overnight.

A battery that performs perfectly well during summer may struggle when temperatures fall.

What should you check?

Inspect battery terminals for corrosion or loose connections.
Check the battery's condition and charge.
Look for damaged or exposed electrical wiring.
Make sure all working lights and warning indicators function correctly.

If your excavator is becoming slower to start, don't wait until it refuses to start altogether. Have the battery and charging system checked before winter sets in.

2. Inspect Your Hydraulic System

Your excavator's hydraulic system works hard throughout the year, but colder temperatures can make hydraulic oil more viscous, particularly during start-up.

Using the correct hydraulic oil and allowing your machine to warm up in accordance with the manufacturer's instructions can help protect components.

Things to look out for:

Hydraulic leaks around hoses, fittings and cylinders.
Cracked, worn or damaged hoses.
Low hydraulic fluid levels.
Unusual noises or sluggish hydraulic movements.

Always follow the manufacturer's recommendations for hydraulic oil specifications and cold-weather operation.

Remember, hydraulic systems operate under extremely high pressure. Never use your hands to check for leaks.

3. Check Your Coolant and Antifreeze

One of the most important winter checks is ensuring your excavator's cooling system is properly protected against freezing temperatures.

An incorrect coolant mixture or deteriorated antifreeze can leave your engine vulnerable to damage.

Before temperatures drop, check that:

Coolant levels are correct.
The coolant provides suitable freeze protection.
Hoses and connections show no signs of leaks or deterioration.
The radiator and cooling system are in good condition.

Always use coolant that meets your machine manufacturer's specifications. Mixing incompatible coolant types can cause problems within the cooling system.

A simple coolant check could help prevent a much more expensive repair.

4. Inspect Your Tracks and Undercarriage

British winters are notorious for wet, muddy working conditions.

Mud, stones and other debris can quickly accumulate around an excavator's tracks and undercarriage, increasing wear and potentially affecting performance.

Regular cleaning and inspection are particularly important during winter.

Our recommendations:

Remove excessive mud and debris from the undercarriage.
Inspect rubber tracks for cracks, cuts or damage.
Check track tension against the manufacturer's guidelines.
Examine rollers, sprockets and idlers for excessive wear.
Check for trapped stones or other foreign objects.

Keeping your undercarriage clean doesn't just help with performance. It also makes it easier to identify potential problems before they develop into expensive repairs.

5. Don't Forget Your Filters and Fuel System

Water contamination, dirty filters and unsuitable fuel can cause problems at any time of year, but cold weather can make some of these issues more noticeable.

Diesel fuel can also become more difficult to flow in low temperatures if it isn't suitable for the conditions.

Before winter, consider:

Inspecting and replacing fuel filters when required.
Checking for water contamination in the fuel system.
Using seasonally appropriate diesel fuel.
Inspecting air filters and cleaning or replacing them as recommended.
Checking fuel lines and connections for damage.

Always follow the machine manufacturer's servicing instructions, including the correct procedure for draining any fuel-water separator.

6. Check Your Lights, Cab and Operator Safety

With shorter daylight hours, poor visibility and wet weather, operator safety becomes even more important.

Working lights, mirrors, windows and cab equipment all need to be in good condition.

Before starting work, check:

All work lights and warning lights.
Windscreen wipers and washers.
Cab heating and demisting systems, where fitted.
Mirrors, windows and visibility aids.
Steps, handrails and access points.

Keep steps and access areas clear of mud, ice and slippery debris.

For machines working on busy construction sites or close to pedestrians, good visibility is essential.

7. Book a Winter Health Check

Even with regular daily checks, some potential problems aren't immediately obvious.

A professional inspection can help identify worn components, fluid issues and developing faults before they lead to unexpected downtime.

Having your machine checked ahead of winter is particularly worthwhile if it has been working hard throughout the summer or is approaching its next scheduled service.

At D&J Machinery Sales, our experienced workshop team provides machinery servicing, maintenance and repairs, helping customers keep their equipment in working condition throughout the year.

With both workshop facilities and mobile engineers, we can support customers with a range of servicing and repair requirements.

Why Winter Maintenance Matters

When a machine breaks down, the cost isn't limited to replacement parts or repairs.

Unexpected downtime can mean delayed projects, disrupted schedules, additional hire costs and lost productivity.

For plant hire companies, groundworkers, utilities contractors and construction businesses, keeping machinery operational is essential.

Taking the time to prepare your excavator for winter can help:

Reduce the risk of unexpected breakdowns.
Extend the working life of key components.
Improve machine reliability.
Reduce avoidable repair costs.
Keep projects running during challenging weather conditions.

Of course, no maintenance programme can guarantee a machine won't break down, but preventative checks can make a real difference.

Get Winter Ready with D&J Machinery Sales

Is your excavator ready for the colder months?

At D&J Machinery Sales, we're here to help you keep your equipment in working order throughout winter.

Whether your machine is due a routine service, requires repairs or you'd like to enquire about a winter preparation inspection, our team can discuss the options available.

With genuine Takeuchi parts, experienced engineers and both in-house and mobile servicing capabilities, we're committed to helping customers minimise downtime and keep their machinery working.

Don't wait for the first frost to discover a problem!

Contact the D&J Machinery Sales team for further information or to request a quote for your machine.

Visit: www.djmachinery.co.uk

D&J Machinery Sales – Supplying and supporting construction machinery since 1997.

Please note: This article provides general maintenance guidance. Always refer to your machine's operator manual and manufacturer's servicing recommendations. Repairs and technical inspections should be carried out by appropriately trained personnel.

Preparing Your Excavator for Winter: 7 Essential Checks to Keep Your Machine Working