Common Scania Brake Problems & Solutions
Scania trucks are known for their reliability, but brake systems require regular maintenance and timely replacement of wear parts. Here's your comprehensive guide to identifying and solving common Scania brake issues.
1. Brake Fade or Reduced Stopping Power
Symptoms:
- Longer stopping distances
- Spongy brake pedal feel
- Brake pedal sinks to floor
- Need to pump brakes for effectiveness
Common Causes:
- Worn brake linings or pads
- Air in hydraulic system
- Contaminated brake fluid
- Faulty brake chambers
- Leaking master cylinder
Solution:
Start by inspecting brake linings - they should have at least 3-4mm of material. If worn, replace immediately. Check brake fluid level and quality. Bleed the system to remove any air. If problems persist, inspect brake chambers and slack adjusters for proper operation.
✅ Recommended Replacement Parts:
- Brake linings (FERODO OEM quality)
- Brake chambers (WABCO)
- Slack adjusters (HALDEX)
- Master cylinder components
2. Uneven Braking or Pulling
Symptoms:
- Truck pulls to one side when braking
- Uneven tire wear
- One wheel locks up before others
Common Causes:
- Seized brake chamber or caliper
- Contaminated brake linings (oil, grease)
- Incorrect slack adjuster adjustment
- Uneven lining wear
- Damaged brake hoses
Solution:
Inspect all brake components on both sides for even wear. Check that slack adjusters are properly adjusted and operating freely. Replace any contaminated linings. Verify brake chambers are actuating evenly. Check for any damaged or restricted brake hoses.
3. Noisy Brakes
Symptoms:
- Squealing or grinding noise
- Clicking or rattling sounds
- Groaning during brake application
Common Causes:
- Worn brake linings (metal-to-metal contact)
- Loose brake components
- Glazed brake drums or rotors
- Missing or damaged anti-rattle clips
- Contamination on braking surfaces
Solution:
Squealing often indicates worn linings - replace immediately. Grinding means metal-to-metal contact and requires immediate attention. Check all mounting hardware for tightness. Clean braking surfaces and replace glazed drums if necessary.
Preventive Maintenance Tips
Regular Maintenance Schedule:
Daily Checks:
- Test brake response before driving
- Check for air leaks (listen for hissing)
- Verify brake warning lights are off
Monthly Inspections:
- Inspect brake lining thickness
- Check slack adjuster operation
- Inspect brake hoses for damage
- Test parking brake effectiveness
Annual Service:
- Complete brake system inspection
- Replace brake fluid
- Lubricate all moving parts
- Replace worn components proactively
When to Call for Professional Help
While some brake maintenance can be done in-house, certain situations require immediate professional attention:
- Complete brake failure or significantly reduced braking
- Persistent pulling or uneven braking after repairs
- Unusual noises that persist after inspection
- Brake warning lights that won't reset
- Any situation where you're unsure about safety
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Conclusion
Regular brake maintenance is essential for Scania truck safety and performance. By understanding common problems and their solutions, you can prevent costly downtime and ensure your equipment operates safely. Always use quality replacement parts and follow manufacturer recommendations.
For technical assistance or to order Scania brake components, contact Parts Trading Company - serving India's heavy equipment industry since 1956.