Winter conditions place a lot of stress on your heavy machinery. As we head into the winter months, it’s important to pay extra attention to the condition of your undercarriages, hydraulic systems, cooling systems and electrical assemblies, to make sure they’re performing as the should be.

Freezing temperatures, moisture, and compacted material can all increase wear, reduce efficiency, and lead to costly downtime.

Here is Jaytrac’s guide to effective winter maintenance for your heavy machinery.

Storing heavy machinery in Winter

Proper storage is one of the most effective ways to protect equipment during freezing conditions. Whenever possible, heavy machinery should be stored indoors or under covered structures to shield vital components from ice, snow, and temperature fluctuations.

Indoor storage helps maintain healthier operating conditions for:

• Batteries and electrical systems, which perform poorly in extreme cold
• Undercarriage systems, reducing ice build-up around track chains, rollers, idlers and sprockets
• Hydraulic parts, helping prevent cold-weather thickening of hydraulic fluids

If indoor storage is not available, machines should be parked on level ground and protected with weather-resistant covers. In severe conditions, consider removing or warming the battery, as low temperatures significantly reduce cranking power and engine-start reliability.

For additional storage guidance, see our blog: 10 Ways to Winterise Heavy Equipment

Keeping machinery clean

Winter conditions expose equipment to moisture, compacted material, and corrosive substances, especially around the undercarriage. Mud, ice and built-up debris can restrict movement, increase friction, and accelerate wear across parts like the track chains, rollers, idlers, sprockets and track frames.

Regular cleaning, ideally using a pressure washer, helps prevent abrasive material from accumulating and reduces the risk of corrosion. Applying protective coatings to exposed metal can also extend your machinery’s lifespan in harsh conditions.

Fuel care in cold temperatures

Fuel performance can deteriorate significantly in freezing weather. Diesel is particularly prone to gelling, where wax crystals form and thicken the fuel, restricting flow through filters and injectors.

To maintain fuel system health during winter:

• Use winter-grade fuel formulated to resist low-temperature gelling
• Add approved fuel additives to support proper flow and reduce moisture
• Inspect your machine’s fuel filters frequently, as cold weather causes contaminants to form more quickly

These steps help ensure consistent engine performance and reduce the likelihood of winter-related shutdowns.

Warm-up procedures before operation

Cold starts place strain on engines, batteries, hydraulic pumps, and other systems. Allowing machinery to idle before use helps stabilise temperatures and ensures proper fluid circulation.

A brief warm-up period supports improved lubrication of the engine and hydraulics, reduced stress on pumps, seals and bearings, and the smoother operation of track systems and moving assemblies.

Addressing issues immediately

Even small faults can escalate quickly during winter. Cold temperatures exacerbate mechanical stress, making early intervention essential.

Examples include:

• Minor hydraulic leaks becoming major failures as seals contract
• Small cracks in hoses or rubber components worsening due to brittleness
• Early signs of undercarriage wear leading to misalignment or component failure

A proactive approach to machinery repairs prevents larger, more costly issues and helps ensure safe winter operation.

At Jaytrac, we stock a wide range of high-quality replacement parts for your heavy equipment, including components for Caterpillar, Cummins, Komatsu, and other leading brands. Whether you need individual parts or complete assemblies this winter, our expert team is here to help you find exactly what you need to keep your machinery performing at its best throughout the winter season.

Explore our range, or get in touch via our enquiry page to speak to a member of our team.