A trailer is one of the hardest-working tools in your operation. Whether it hauls freight, machinery, building materials, or equipment, your trailer keeps business moving. But like any piece of machinery, wear and tear is inevitable, and if you are not watching closely, small issues can turn into expensive trailer repair costs faster than you think.
At Rusted Nuts Mechanical Services in Calgary, we help you catch problems before they cause breakdowns. With over two decades of hands-on mechanical experience, owner Myron Kultgen brings expert eyes to every trailer he inspects, whether you are operating a single unit or managing an entire fleet.
In this guide, we are taking you from hitch to hub, showing you what to look for, what to service, and how to avoid costly repairs that can shut you down. It is all part of our mission to save you time, money, and stress with reliable, on-site trailer repair and maintenance throughout Calgary and surrounding areas.
Why Trailer Maintenance Matters More Than You Think

Let’s be real. Trailers often get overlooked. The focus is usually on the truck or power unit while the trailer quietly racks up kilometers behind it.
But trailers are not just a cargo box on wheels. They have braking systems, electrical wiring, suspension parts, axles, and couplers, all of which wear down over time.
When one part fails:
- You risk roadside breakdowns
- You may lose valuable loads
- You could face safety violations and costly tickets
- You deal with delays that affect your reputation
That is why preventative trailer maintenance is not optional, it is essential.
What to Inspect: A Walkthrough from Hitch to Hub
Here is how to assess your trailer from front to back, top to bottom. These checks help you spot issues early and call in Rusted Nuts Mechanical Services before they turn into repair emergencies.
1. Coupler and Hitch Assembly
This is the foundation of your trailer’s connection to your truck. If it fails, the entire trailer is at risk of detaching.
Look for:
- Loose or worn locking mechanisms
- Cracks or stress marks in the coupler body
- Rust buildup that affects locking strength
- Worn or missing safety chains and clips
✅ Pro tip: Lubricate your coupler regularly and inspect all welds near the tongue for fatigue.
2. Wiring and Lights
Lighting is one of the most common trailer issues. Alberta’s regulations require working signal lights, brake lights, and reflectors.
Look for:
- Flickering, dim, or non-functional lights
- Exposed or cracked wiring
- Loose plug connections or corrosion in the trailer harness
✅ Pro tip: Replace damaged light covers quickly and upgrade to LED systems for better visibility and reliability.
3. Brakes and Brake Lines
Your trailer brakes are just as important as your truck’s. Delayed braking response or uneven wear could cause a serious accident.
Look for:
- Pulling to one side during braking
- Squealing or grinding sounds
- Fluid leaks or corroded brake lines
- Uneven brake pad wear
✅ Pro tip: Check brake performance regularly, especially if your trailer hauls heavy loads or travels long distances.
4. Axles, Bearings, and Hubs
Your wheels carry the weight, but it is the axles and hubs that keep them turning smoothly.
Look for:
- Excessive heat near hubs after travel
- Grease leaks around bearings
- Vibration or wobble at higher speeds
- Bent axles or signs of metal fatigue
✅ Pro tip: Repack bearings at least once per year, and always after driving through water or mud.
5. Tires and Rims
Tires are your trailer’s only contact with the road. Bald spots, uneven wear, or underinflated tires spell disaster.
Look for:
- Tread depth less than 4/32″ on steering tires
- Sidewall cracks or bubbles
- Uneven wear patterns (a sign of alignment or suspension issues)
- Rust or damage to rims
✅ Pro tip: Always carry a matching spare tire and check pressure before every trip.
6. Suspension and Leaf Springs
Trailer suspension takes a constant beating, especially on Calgary’s uneven roads. Weak springs lead to bouncing loads and poor handling.
Look for:
- Broken or missing leaf springs
- Uneven trailer height from side to side
- Clunking or creaking sounds when towing
- Cracked U-bolts or worn shackles
✅ Pro tip: Add suspension checks to your seasonal inspection schedule, especially after winter.
7. Floor, Frame, and Undercarriage
Out of sight should never mean out of mind. The frame and floor are crucial to cargo safety and trailer longevity.
Look for:
- Wood rot or rust under flooring
- Soft spots that flex under weight
- Frame cracks or rust holes
- Loose crossmembers or broken welds
✅ Pro tip: Wash the underside of your trailer regularly to prevent salt corrosion, especially in winter.
From Catch to Correction: Why You Need Expert Mobile Service
At Rusted Nuts Mechanical Services, we do more than just show you the problem, we fix it on the spot.
Our fully equipped mobile trailer repair unit serves Calgary and nearby communities with fast, expert service at your location. No towing. No waiting in line. No lost jobs because of a preventable failure.
Services we offer include:
- Brake repairs and inspections
- Electrical rewiring and light replacement
- Bearing service and axle work
- Welding and structural repairs
- Suspension adjustments
- Tire repair and replacement
- Seasonal preventative maintenance
- Safety inspections and pre-trip checks
Trailer Troubleshooting Quick Guide
| Component | Common Warning Sign | Potential Cause | Recommended Action |
|---|---|---|---|
| Coupler | Loose or noisy when towing | Wear or missing parts | Replace or rebuild coupler assembly |
| Brake lights | Flicker or fail when braking | Broken wire or bad ground | Rewire and check fuse box |
| Hubs | Hot to the touch | Worn bearings | Clean, repack, or replace bearings |
| Tires | Wear on one side only | Alignment or bent axle | Replace tires and inspect axles |
| Floor panels | Sagging or soft spots | Rot or rust | Replace wood or weld metal sections |
Why Calgary Chooses Rusted Nuts Mechanical
- Over 20 years of experience in heavy-duty mechanics
- Fully mobile service with quick response times
- Family-owned and built on honest, reliable work
- Serving truck owners, trailer operators, and fleet managers
- No hidden fees, no unnecessary upselling, just straight-up solutions
Book Your Inspection Before It Becomes a Breakdown
If your trailer is showing signs of wear, or if you want to prevent costly downtime; Rusted Nuts Mechanical Services is your go to team for trailer repair in Calgary.
📞 Call us now: 587-437-2553
📧 Email: rustednutsmechanical@hotmail.com
From hitch to hub, we will keep your trailer safe, road-ready, and reliable. Do not wait until it breaks. Prevent it today.
Trust Rusted Nuts. Fix it before it fails.



