Brake Caliper Mechanism: Camshaft, Bearings, and Return Spring
Inside the air disc brake caliper: how the camshaft, thrust bearings, return spring, and automatic adjuster convert push-rod force into pad pressure.
Heavy Duty Spare Parts
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Articles
Tachograph Explained: Driver Cards, Symbols, Rest Times
Learn how a tachograph works: analog vs digital vs smart types, driver and company cards, display symbols, data download rules, and roadside inspection checks.
ADR Guide: Vehicle & Driver Rules for Dangerous Goods Transport
Learn what ADR means for heavy trucks: hazard classes, required vehicle equipment, driver certification, orange plate labeling, and inspection documents.
Caliper Guide Pin, Bushing & Bolt: Faults, Repair, Care
Learn how caliper guide pins and bushings seize, how to diagnose uneven pad wear, and the correct removal, greasing and torque steps for replacement.
Exhaust Clamp & Connecting Pipe: Faults, Replacement, Care
Diagnose exhaust leaks, replace clamps and flex pipes in the correct order, apply the right torque bands and extend service life on heavy trucks.
Engine Gasket Set: Failure, Replacement and Maintenance Guide
Learn how an engine gasket set fails, how to confirm the leak with pressure tests, and how to fit it correctly with the right torque and angle steps.
Belt Tensioner: Failure, Replacement & Maintenance Guide
Diagnose belt tensioner failure on heavy commercial vehicles: symptoms, water-spray test, step-by-step replacement, torque values and maintenance intervals.
Brake Master Cylinder: Faults, Replacement & Care Guide
A brake pedal that sinks slowly to the floor or turns soft during the day points to the dual-circuit master cylinder: leak diagnosis, replacement and bleeding.
Oil Separator: Faults, Replacement & Maintenance Guide
Oil turning up at the turbo inlet or air filter often means a clogged crankcase oil separator, not the turbo: symptoms, diagnosis and replacement.
