When winter temperatures drop, ride-on rollers left exposed to the elements face serious risks that can lead to costly repairs and extended downtime come spring. Water freezes and expands, cracking vital components. Batteries lose their charge. Rubber seals dry and crack. Taking the time to properly prepare compaction equipment for cold weather storage is an investment that pays back in reliable performance when construction seasons resume. This article covers the complete winterization process for ride-on rollers, drawing on proven practices from leading equipment manufacturers. For a broader overview of roller types and their applications, see Road Construction Equipment Pavers Rollers and Asphalt Machinery.
Protecting the Water System and Engine from Freeze Damage
The most immediate threat to a roller in freezing conditions is water expansion. When water turns to ice, it expands by roughly 9 percent, generating enough force to crack tanks, burst hoses, and destroy pump seals. Every component that holds water must be addressed before temperatures fall below freezing.
Draining the Water System
Start by completely draining all water from the roller’s tanks, hoses, filters, and pumps. Simply opening drain valves is not enough. Residual water trapped in low points or behind valves can still freeze and cause damage. Tilt the machine if necessary to ensure complete drainage, and follow the manufacturer’s procedure for accessing all drain points.
Cleaning and Treating the System
After draining, run a bleach solution through the water system to kill any algae or biological growth that has accumulated during the operating season. Algae left in the system over winter can decompose and create blockages when the machine is restarted. Follow these steps:
- Flush the system with a diluted bleach solution (1 part bleach to 10 parts water).
- Run clean water through to rinse.
- Fill the system with RV-style propylene glycol antifreeze and circulate it through all lines.
- Drain the system as much as possible, leaving only a film of antifreeze coating the internal surfaces.
Propylene glycol based antifreezes are preferred because they are environmentally friendly and less harmful to animals compared to ethylene glycol products. This is especially important if the machine is stored outdoors where leaks could reach groundwater.
Radiator and Engine Protection
For water cooled engines, the radiator antifreeze must be tested to ensure it provides adequate protection for the lowest temperatures expected in your area. Use a hydrometer to measure the freeze point of the coolant. Most heavy duty antifreeze mixtures protect down to -34 degrees Fahrenheit when mixed at a 50/50 ratio, but this varies by product and should be confirmed with a direct measurement.
In addition to coolant protection, cover the air cleaner intake and exhaust pipe with plastic or tape to prevent moisture from entering the engine. Moisture inside the cylinders can cause rust on the cylinder walls and piston rings, leading to compression loss and heavy exhaust smoke on startup.
Corrosion Prevention and Lubrication
Moisture and temperature swings create ideal conditions for corrosion. A comprehensive lubrication and protection routine before storage prevents rust from forming on exposed metal surfaces and moving parts. Proper lubrication can extend the service life of pins, bushings, and hydraulic components significantly.
Greasing and Oil Changes
Before storage, grease every lubrication point on the machine. This includes:
- Steering hitch and steering cylinder grease points.
- Hydraulic cylinder exposed rods (coat them with grease to prevent pitting from moisture).
- Door hinges and latch mechanisms.
- Both ends of the forward/reverse control linkage.
- All chassis pivot points and articulation joints.
On machines equipped with axles, change the axle lubricating oils before storage. Used oil contains contaminants and moisture that can cause bearing and gear damage over several months of inactivity. Fresh oil provides a protective barrier against corrosion.
Cleaning Before Storage
Washing down the roller before storage serves two important purposes. First, a clean machine makes it easier to spot any fluid leaks that develop over the winter. A small drip on clean paint is obvious; the same drip on a muddy undercarriage may go unnoticed until a component runs dry. Second, removing mud and debris prevents ice from forming around valves, control linkages, and moving parts. Mud that freezes around a control valve can break the valve stem when it expands.
Protecting Accessories and Plastic Components
Remove any accessories that could be damaged by freezing temperatures. Spray bars should be removed and stored indoors if possible. Plastic parts such as the seat and control panel covers should be protected from UV degradation and freezing. If the machine is stored in an area with heavy snow pack, cover the entire roller with a breathable tarp to prevent snow from packing around sensitive components.
Rollers share many maintenance principles with other road construction machinery. See Road Construction Equipment Asphalt Plants Pavers Rollers and Grading Machinery for related maintenance guidance.
Battery Care and Long Term Storage Practices
Battery failure is one of the most common issues when starting equipment after winter storage. Cold temperatures slow the chemical reactions inside a battery, reducing its cranking capacity by up to 60 percent at freezing temperatures. Proper battery care before and during storage eliminates this risk.
Battery Removal and Charging
The best practice for battery care over winter is to fully charge the battery, remove it from the machine, and store it in a warm location. A battery that is left to discharge over winter and then used to start the engine in the spring can overload and blow out the alternator. The alternator is not designed to charge a deeply depleted battery, and the resulting current surge can damage the diodes and voltage regulator.
If you are charging and storing batteries indoors, ensure the area is properly ventilated. Batteries can produce hydrogen gas during charging, which can accumulate and create a fire or explosion hazard in enclosed spaces.
Fluids, Filters, and Long Term Protection
Manufacturers supply specific recommendations for protecting metal components from corrosion during long term storage. These recommendations cover engine internals, hydraulic cylinders, and exposed metal surfaces. Consider changing the roller’s fluids and filters prior to storage so that fresh oil protects internal components through the winter months.
If you prefer to change fluids in the spring instead of before storage, at minimum ensure that all fluid levels are full before parking the machine. Air space in reservoirs and gear cases allows moisture condensation, which leads to oil contamination and internal corrosion.
Pneumatic Tire Roller Considerations
Pneumatic tired rollers require additional preparation because rubber tires are vulnerable to cold weather degradation. Use this checklist for tire storage:
| Task | Purpose | Frequency |
|---|---|---|
| Check and adjust tire inflation pressure | Cold temperatures reduce tire pressure; underinflated tires can suffer sidewall damage | Before storage |
| Take load off tires by placing axles on blocks | Prevents flat spotting and rubber deformation from prolonged weight bearing | Before storage |
| Cover tires with black plastic or UV resistant covers | Prevents rubber degradation from sun exposure and ozone cracking | Before storage |
| Park on wooden planks, clean concrete, or asphalt | Prevents tires from freezing to bare ground; improves air circulation | Before storage |
| Rotate tires slightly every 30 days | Distributes pressure points and prevents permanent flat spots | Monthly during storage |
Tire pressure should be checked and adjusted when the tires are cold for an accurate reading. Storage on bare ground should always be avoided because tires can freeze to the soil surface, causing sidewall damage when the machine is moved.
Annual Maintenance Checks and Spring Startup
Winter storage is the ideal time to perform annual maintenance that might otherwise cause downtime during the busy construction season. A thorough inspection and repair program executed during the off season means the roller is ready to work when the weather warms.
Pre Storage Operational Inspection
Before parking the machine for winter, perform a complete operational check of all systems:
- Check the hydraulic system thoroughly and repair all leaks. Replace any hoses that show signs of wear, cracking, or bulging.
- Inspect the electrical system and restore it to original condition. Look for frayed wires, loose connections, and corroded terminals.
- Replace all missing bolts and nuts. Vibration during operation can loosen fasteners over time.
- Check all control cables for smooth operation and proper adjustment.
- Verify vibration system function, scraper bar adjustment, engine RPM, and travel speed ranges.
After completing the operational check, make a list of items that need to be repaired or replaced over the winter. This list becomes the work order for the off season, ensuring nothing is forgotten before spring startup.
Spring Startup Procedure
When it is time to bring the roller back into service, follow these steps:
- Conduct a visual inspection of the entire machine. Look for dry rot damage on hoses and belts, moisture ingress in electrical connections, and any signs of animal or insect infestation. Rodents often nest in engine compartments and air filters over winter.
- Check for fluid leaks that may have developed during the storage period. Pay special attention to hydraulic cylinder seals, hose connections, and the underside of the engine.
- Refresh all fluids to manufacturer specifications. If you changed fluids before storage, check levels and top off as needed.
- Test the battery before attempting to start the engine. A battery that held charge over winter should show at least 12.4 volts. Load test the battery if there is any doubt about its condition.
- Perform a complete operational check before putting the machine to work. Verify that all safety systems, gauges, and controls function correctly.
If your pre storage maintenance was thorough, the spring startup should go smoothly with no surprises. The time invested in proper winterization directly translates to reliable performance and fewer emergency repairs during the operating season.
For an overview of different roller configurations and their applications in pavement construction, see Road Construction Equipment a Complete Guide to Pavers Rollers and Asphalt Machinery. For further reading on compaction best practices and equipment selection, refer to Compaction and Road Construction Equipment Rollers Pavers and Asphalt Machinery for Durable Pavements.