Winter Care Checklist for Wheel Loaders: Oil, Battery and Hydraulics

Most winter breakdowns on wheel loaders trace back to three places: the fuel system, the starter battery and hydraulic oil temperature. Run through this checklist and you avoid nearly all cold-season downtime.

Fuel system

• Drain the water separator daily — frozen lines and cracked bowls are classic winter failures;
• Switch diesel grade ahead of the cold — No. -10/-20/-35 diesel should be changed before the cold filter plugs;
• Replace fuel filters on schedule — winter is less forgiving of dirt, so replace filters close to their due date early.

Starter battery

Cold cuts battery capacity by more than 30%. Before winter, test voltage and specific gravity; recharge or replace weak batteries. For machines idle over a week, disconnect the master switch or start the engine for a 30-minute charge every two weeks.

Hydraulics and cooling

• Match coolant to the local minimum temperature and verify freeze-point margin when topping up;
• Idle at least 5 minutes after a cold start, then work the controls gently for a few minutes before loading;
• Check hydraulic oil viscosity grade for winter per the manual; in severe cold regions, switch to a winter-grade oil.

End-of-shift routine

Lower the bucket flat to the ground and retract cylinder rods (ice on exposed rods tears seals); inflate tyres to the upper end of spec (pressure drops in the cold); park out of the wind on dry ground and cover the machine if it stays outside overnight.

Want a winter maintenance schedule for your model? Contact Fenglai — we provide it in both Chinese and English.