Charlotte Mobile Diesel connects carriers with mobile trailer repair as well as reefer unit repair, air brake repair, tire service and DOT inspection prep across the Charlotte metro.
Trailers sit at drop lots and docks around Charlotte for days at a time, and the problems that develop there — a dead marker light, a leaking gladhand, a landing-gear crank that won't budge — only show up when a driver hooks on. On-site trailer repair fixes them where the trailer sits.
Trailer types
- 53-foot dry vans
- Refrigerated vans
- Flatbeds and step decks
- Dump and end-dump trailers
- Lowboys and equipment trailers
- Pup trailers and container chassis
Electrical and ABS
Trailer ABS has been required on air-braked trailers since March 1998 under FMVSS 121, and the ABS warning lamp on the trailer's left side must work. Lighting problems usually trace to the 7-way SAE J560 connection, a corroded junction box or a broken ground. Repairs use sealed connectors and heat-shrink.
Structure and running gear
Landing gear
Two-speed gearboxes, crank handles, sand shoes and leg replacement.
Suspension
Air-ride bags, height-control valves, shocks, bushings on spring suspensions and sliding-tandem pins.
Body and doors
Swing-door hinges, lock rods, roll-up door springs, mud flaps, conspicuity tape and side-skirt brackets.
How a trailer repair visit goes
- Send the trailer number, lot or dock location and issue.
- Tech hooks a test box or tractor to power lights and air the trailer.
- Defects are repaired and re-tested with the trailer aired up.
- The trailer is left ready for its next dispatch.
Materials for long trailer life
Use DOT-marked LED lamps with sealed pigtails, conspicuity tape meeting DOT-C2, and galvanized or stainless hardware on doors and flaps. Grease landing gear and slider pins at every PM — rust is the main enemy of trailers parked on open lots through humid Carolina summers.