HOW TO PREVENT HYDRAULIC SYSTEM DAMAGE DURING WINTER

The good news is that a few preventative maintenance steps can help keep your equipment running efficiently all winter long. Whether you're operating a skid steer, compact track loader, excavator, wheel loader, or tractor, preparing your hydraulic system for cold weather is essential.

Why Cold Weather Is Hard on Hydraulic Systems

 

Hydraulic systems depend on fluid flowing efficiently through pumps, valves, hoses, and cylinders. As temperatures decrease, hydraulic oil becomes more viscous, making it harder for the system to circulate fluid properly.

 

This can result in:

• Slower machine response
• Increased wear on hydraulic components
• Excessive pressure buildup
• Damaged seals and hoses
• Reduced operating efficiency
• Higher risk of hydraulic failure

 

Understanding these challenges is the first step toward preventing winter-related damage.

Warm Up Your Equipment Before Working

 

One of the most common causes of hydraulic system damage is putting a cold machine under load too quickly.

 

Before beginning work:

1. Start the machine and allow it to idle for several minutes.
2. Slowly cycle hydraulic functions such as the boom, bucket, lift arms, and auxiliary hydraulics.
3. Gradually increase workload as operating temperatures rise.

 

Giving hydraulic fluid time to warm up allows it to flow properly throughout the system and reduces stress on critical components.

 

Taking a few extra minutes at startup can help prevent costly repairs later in the season.

Check Hydraulic Fluid Levels Regularly

 

Proper hydraulic fluid levels are important year-round, but they become even more critical during winter.

 

Low fluid levels can:

• Increase system strain
• Introduce air into the system
• Cause erratic operation
• Reduce lubrication of key components

 

Follow manufacturer recommendations when checking hydraulic fluid levels and inspect reservoirs regularly throughout the winter season.

 

If fluid levels drop unexpectedly, it may indicate a leak that should be addressed immediately.

 

Use the Correct Hydraulic Fluid

 

Not all hydraulic oils perform the same in cold temperatures.

 

Using the wrong fluid can lead to:

• Poor cold-weather performance
• Restricted flow
• Increased component wear
• Reduced machine efficiency

 

Consult your operator's manual or your equipment dealer to determine the recommended hydraulic fluid for winter operating conditions.

 

Some applications may benefit from lower-viscosity hydraulic oils designed specifically for cold-weather performance.

Inspect Hoses and Fittings Frequently

 

Cold temperatures can make hydraulic hoses more susceptible to cracking and damage.

 

Before winter and throughout the season, inspect:

• Hydraulic hoses
• Couplers
• Fittings
• Clamps
• Connection points

 

Look for:

• Cracks
• Abrasion
• Leaks
• Bulges
• Loose fittings

 

Catching a small issue early can prevent a major hydraulic failure during a busy workday.

 

Replace Hydraulic Filters as Scheduled

 

Hydraulic filters play a critical role in protecting pumps, valves, and other components from contamination.

 

A clogged filter can:

• Restrict fluid flow
• Increase system pressure
• Reduce equipment performance
• Accelerate component wear

 

Winter conditions often introduce additional contaminants such as moisture, dirt, and debris, making filter maintenance even more important.

 

Always follow the recommended service intervals outlined by the manufacturer.

 

Watch for Moisture Contamination

 

Condensation can form inside hydraulic reservoirs when temperatures fluctuate between warm and cold conditions.

 

Water contamination can lead to:

• Corrosion
• Frozen system components
• Reduced lubrication
• Premature wear

 

Signs of contamination may include cloudy hydraulic oil or unusual machine performance.

 

Regular inspections and timely fluid changes help minimize moisture-related issues.

Store Equipment Properly

 

Whenever possible, store equipment indoors during winter.

 

Heated or enclosed storage can help:

• Maintain fluid temperatures
• Reduce condensation
• Protect hoses and seals
• Improve cold-weather startup performance

 

If indoor storage is unavailable, consider using engine and hydraulic system heaters when appropriate for your equipment.

 

Pay Attention to Warning Signs

 

Your machine will often provide early warning signs before a hydraulic failure occurs.

 

Watch for:

• Slow hydraulic response
• Unusual noises
• Jerky movements
• Hydraulic leaks
• Excessive heat buildup
• Warning indicators on the display

 

Addressing these symptoms quickly can prevent minor issues from becoming major repairs.

Keep Your Equipment Working All Winter Long

 

Preventing hydraulic system damage starts with consistent maintenance and proper cold-weather operating practices. Warming up equipment, using the correct hydraulic fluid, inspecting hoses and filters, and monitoring for leaks can help extend component life and reduce costly downtime.

 

At Rexco Equipment, our parts and service teams can help you prepare your equipment for winter with preventative maintenance, inspections, genuine replacement parts, and expert service support. Contact your nearest Rexco Equipment location to schedule a winter equipment check and keep your machines operating at peak performance all season long.