Air System Repair Services

Regular maintenance is essential for keeping your air system reliable and compliant with safety regulations. Here's our recommended maintenance schedule:

• Daily Checks (by driver):
  • Monitor air pressure build time and maintain proper pressure
  • Listen for audible air leaks
  • Check for air system warning lights
  • Drain air tanks to remove moisture (unless you have automatic drain valves)
• Monthly Maintenance:
  • Inspect air lines for damage, wear, or proper securement
  • Check air tanks for external damage or excessive corrosion
  • Inspect air dryer for proper operation
  • Test air pressure protection valves
• Quarterly Service:
  • Comprehensive leak detection test
  • Inspect compressor mounting and drive components
  • Check air governor cut-in and cut-out pressures
  • Inspect and clean (or replace) air dryer filter
• Annual Maintenance:
  • Replace air dryer desiccant cartridge
  • Inspect and test all air valves for proper operation
  • Check compressor discharge line for carbon buildup or restrictions
  • Complete system pressure drop tests
  • Inspect brake chambers, slack adjusters, and other air-operated components

For vehicles operating in severe conditions (extreme temperatures, dusty environments, frequent stop-and-go, etc.), more frequent maintenance intervals may be necessary. Our technicians can help establish a customized maintenance schedule based on your specific operating conditions.

Regular preventative maintenance significantly reduces the risk of roadside breakdowns and DOT violations while extending the life of expensive air system components.

Air leaks are among the most common air system issues and can develop for several reasons:

• Worn Fittings and Connections: Vibration and normal wear can loosen or damage air line fittings, causing leaks at connection points.
• Cracked or Damaged Lines: Air lines can develop cracks or damage from road debris, heat exposure, or simply aging over time.
• Faulty Valves: Internal seals in brake valves, pressure protection valves, and other control valves can deteriorate and cause leaks.
• Defective Air Dryer Components: Purge valves, unloader valves, or other air dryer components can develop leaks when they fail.
• Brake Chamber Issues: Diaphragms in brake chambers can deteriorate or rupture, causing air leaks.
• Damaged Tanks: Corrosion or physical damage to air tanks can create leak points.
• Compressor Problems: Internal leaks in the compressor or issues with the unloader mechanism can cause pressure loss.

Our Air Leak Repair Process:

1. Detection: We use specialized acoustic equipment, soap solutions, and pressure testing to locate even small or hidden leaks across the entire system.
2. Evaluation: Once identified, we determine the best repair approach based on the type and location of each leak.
3. Repair Methods: Depending on the issue, repairs may involve:
   • Tightening connections or replacing fittings
   • Replacing damaged air lines or hoses
   • Rebuilding or replacing valves
   • Replacing brake chambers or diaphragms
   • Servicing or replacing the air dryer
4. Verification: After repairs, we retest the entire system to ensure all leaks have been eliminated and that air pressure holds properly under both static and operational conditions.

Our thorough approach focuses not just on fixing the immediate leak, but also identifying any potential developing issues to prevent future leaks. This comprehensive repair strategy improves reliability and reduces long-term maintenance costs.

Our mobile air system repair service brings professional diagnostics and repairs directly to your location, minimizing downtime and getting you back on the road quickly. Here's how the process works:

1. Initial Contact: Call our 24/7 dispatch center or submit a service request online with details about your air system issues and location.
2. Technician Dispatch: We assign the nearest qualified technician with a fully-equipped service vehicle containing specialized air system testing equipment and common replacement parts.
3. On-Site Diagnostics: Our technician arrives at your location and performs comprehensive diagnostics on your air system, including pressure testing, leak detection, and component inspection.
4. Detailed Quote: You receive a transparent quote for the required repairs before any work begins.
5. On-Site Repairs: Most air system repairs can be completed on-site, as our service vehicles carry a comprehensive inventory of air system components, including:
   • Air compressors and repair kits
   • Air dryer components
   • Brake valves and control valves
   • Air lines, fittings, and gladhands
   • Air tanks and mounting hardware
   • Brake chambers and related components
6. System Testing: After repairs, we perform thorough testing to ensure the air system functions properly and maintains pressure according to specifications.
7. Documentation: We provide complete documentation of all repairs performed for your maintenance records and compliance requirements.

Our mobile service is available 24/7 for emergency repairs, and we also offer scheduled maintenance visits at your location or terminal. This service is particularly valuable for fleets looking to minimize downtown and maintain consistent maintenance schedules.

Commercial vehicle air brake systems must comply with specific Department of Transportation (DOT) requirements to ensure safe operation. Here are the key regulations and standards:

Federal Motor Carrier Safety Regulations (FMCSR) Requirements:

• Air Pressure Build Rate: The air compressor must be capable of building pressure from 85 to 100 PSI within 45 seconds (for trucks manufactured after 1975).
• Air Loss Rate:
  • With engine off and brakes released: No more than 2 PSI pressure drop per minute
  • With engine off and brakes applied: No more than 3 PSI pressure drop per minute
• Low Air Warning: Vehicles must have a visible and audible warning that activates when air pressure drops below 60 PSI.
• Spring Brake Activation: Spring brakes must automatically apply when system pressure drops to between 20-45 PSI.
• Air Governor Settings: The governor must maintain system pressure between approximately 100 PSI (cut-in) and 125-135 PSI (cut-out), though exact settings may vary by manufacturer.
• Air Reservoirs: Must be equipped with manual or automatic moisture ejection valves.
• Air Brake Adjustment: Push rod stroke must be within specified limits for the brake chamber size.

Common DOT Violations Related to Air Systems:

• Audible air leaks
• Improper brake adjustment
• Cracked or damaged air lines
• Inoperative low air warning devices
• Damaged or improperly secured air tanks
• Excessively worn brake components
• Missing or non-functional moisture ejection valves

Our air system repair services ensure your vehicle meets or exceeds all DOT requirements. We provide detailed inspection reports documenting compliance, which can be valuable during roadside inspections or fleet safety audits.

Regular professional maintenance of your air system not only ensures compliance with regulations but also improves vehicle safety, reduces the risk of costly violations, and prevents roadside breakdowns.