Winter Excavator Care: 3 Habits That Extend Machine Life

Winter is when excavators break down most often — and most of those failures are not quality problems, but habits. Fengle Machinery has put together three winter habits that, if followed every day, can add at least three years to your machine's life.

1. Drain the water separator every day

Diesel always carries some water, and the water separator is what keeps it out of the fuel system. Skipping daily drainage can lead to:

• Ice blocking the fuel line and making the machine hard to start;
• The water chamber freezing and cracking, causing fuel leaks;
• Water entering the engine, corroding precision parts, accelerating wear and cutting power.

2. Match the coolant grade to your local temperature

Choose -10, -20, -30 or -50 grade coolant according to the lowest winter temperature in your region. Using the wrong grade, or not changing it in time, can cause:

• The radiator freezing and cracking, leaking coolant;
• Engine freeze plugs popping out, letting coolant into the engine — if not caught early, this leads to cylinder scuffing;
• The engine block freezing and cracking, which means a full block replacement and a major loss.

3. Warm up until coolant reaches 60 °C before working

After a cold start, idle for at least 5 minutes and wait until the coolant reaches 60 °C before starting work. Working a cold engine means:

• Thick engine oil and poor lubrication, causing heavy engine wear;
• Hydraulic oil never warming up, making movements jerky and uncoordinated;
• Poor fuel atomization, more carbon build-up and less power;
• Higher piston and cylinder shock loads, shortening component life.

Drain the separator, match the coolant, warm up before working — three small habits that add years of life. For more operation and maintenance tips, stay tuned to Fengle Machinery.