FLEET & PREVENTIVE MAINTENANCE

About Fleet & Preventive Maintenance

The cheapest hydraulic repair is the one you never had to make. When a hose blows on a machine in the middle of a job, you aren't just paying for a replacement hose. You're paying for a stranded crew, a stalled project, emergency dispatch fees, and clean-up costs for spilled oil. If you operate a fleet of excavators, skid steers, dump trucks, or farm machinery, waiting for lines to break is a losing strategy. Proactive maintenance keeps your equipment running and keeps your profit margins intact. SIG Hydraulics offers structured fleet service agreements and scheduled preventive maintenance inspections across Northeast Ohio and Western Pennsylvania. We don't just show up when things break. We partner with fleet managers and owner-operators to inspect, log, and service your hydraulic plumbing before a failure happens. Our technicians perform detailed on-site fleet audits. We inspect every machine from bucket to track. We look for the early signs of hydraulic hose wear. This includes checking for cracks in the outer rubber cover, exposed steel wire braiding, and bubbles or soft spots in the hose carcass. We inspect the crimp collars for corrosion and weeping fluid. A damp fitting is a sign that the inner tube is starting to separate from the coupling. It will blow eventually. A major focus of our inspections is hose routing. Many hoses fail because they were installed incorrectly during a previous rush repair. We look for twisted laylines. A hose that is twisted when tightened is under constant torsional stress, which reduces its pressure capacity by up to 70 percent. We check the bend radius of every line. If a hose is bent too tight near a fitting, the wire reinforcement fatiguing will cause a premature blowout. We also check for line interference. If a hose rubs against a frame rail, bracket, or another line, the outer cover will wear through, exposing the steel braid to moisture and rust. We correct these issues on-site. We install protective nylon sleeves, fire-resistant wraps, and plastic spiral guards. We add heavy-duty clamps and routing blocks to secure loose lines. We also conduct fluid analysis as part of our scheduled fleet service. We draw small oil samples from your machinery's hydraulic reservoirs using clean, diagnostic sampling bottles. These samples are analyzed in a certified laboratory to check for microscopic particle contamination (complying with ISO 4406 cleanliness standards) and elemental wear metals like copper, iron, and lead. This testing lets us identify pump, cylinder, or valve wear before it leads to a catastrophic system breakdown, letting you schedule repairs during planned maintenance windows instead of emergency shut-downs. In addition to physical wear, we perform thermal inspections of active hydraulic systems. Our technicians use infrared thermal cameras to scan hoses, pumps, and manifold blocks while the machine is operating under load. Heat anomalies indicate internal restrictions or bypassing, such as a valve spool that is not seating correctly or an inner hose lining that has collapsed and is choking flow. Spotting these thermal hot spots helps us locate hidden system faults before they cause a blowout or burn out a hydrostatic pump. Each machine we inspect gets a digital log. We tag every critical hose with a unique part number and installation date. This creates a clear maintenance history for your fleet. We can identify which hoses are approaching the end of their operational life based on service hours and exposure. We replace these worn soft-lines in a controlled environment, preventing unexpected field failures. Our preventive maintenance service also includes basic fluid health checks. We check hydraulic fluid levels and inspect the reservoir seals. We look for signs of oil contamination, such as cloudy or milky fluid, which indicates water intrusion, or dark, burnt oil, which indicates overheating. We inspect the return line filters and suction strainers. We make sure your oil stays clean. Clean oil extends the life of your expensive pumps, control valves, and cylinders. Fleet agreement clients receive priority status. When an emergency does happen, your machines are moved to the front of our dispatch queue. We already have your fleet data on file. We know what hoses, fittings, and routing configurations your machines use. This makes our emergency response even faster. Investing in preventive maintenance is about controlling your costs. You reduce the number of emergency service calls, eliminate environmental cleanup liabilities from oil spills, and extend the lifespan of your heavy machinery. We keep your fleet Plumbed Right. That means your operators stay productive, your projects stay on schedule, and you keep more money in your pocket. Contact SIG Hydraulics to discuss a custom fleet agreement for your operation. We work with your schedule. We know you can't shut down your fleet during peak operational hours. We schedule preventive inspections and maintenance during planned downtime. This includes evenings, weekends, or seasonal windows. For paving and construction crews, we perform complete fleet inspections during the late winter and early spring before the paving season starts. For agricultural operators, we service combines, tractors, and grain carts before planting and harvest rushes. For municipal departments, we inspect snowplow lifts and salt spreader lines in the autumn before the first freeze.

Industries We Serve

Our fleet & preventive maintenance is engineered for the demanding conditions of heavy industries in Northeast Ohio: