Brake Caliper Mechanism: Camshaft, Bearings, and Return Spring
Inside the truck air disc brake caliper: how the camshaft, thrust bearings, return spring and automatic adjuster turn push-rod force into pad pressure.
Heavy Duty Spare Parts
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Articles
Tachograph Explained: Driver Cards, Symbols, Rest Times
How tachographs work in trucks and buses: analogue, digital and smart types, driver and company cards, symbols, download rules and roadside 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
How a truck 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 commercial vehicle brake pedal that slowly sinks to the floor or goes soft points to the dual-circuit master cylinder: diagnosis, replacement, bleeding.
Oil Separator: Faults, Replacement & Maintenance Guide
On truck diesels, oil at the turbo inlet or air filter often means a clogged crankcase oil separator, not the turbo: symptoms, diagnosis, replacement.
