The boom and arm cylinder assemblies are critical components of an excavator’s lifting and digging system. Proper maintenance and timely replacement of hydraulic cylinders and related parts ensures optimal excavator performance and productivity.
Function Of Boom and Arm Cylinder Assemblies
El boom cylinder assembly consists of:
- The hydraulic cylinder – Which pivots the boom up and down
- Conexiones de pines – Attaching the cylinder to the boom and the base
El arm cylinder assembly includes:
- The hydraulic cylinder – Which actuates the articulating arm linkage
- Conexiones de pines – Attaching the cylinder to the arm and boom
The hydraulic cylinders work by:
- Extending and retracting their rods in response to hydraulic pressure
- Raising and lowering the boom and stick arms
- Opening and closing the articulating arm at the joint
Componentes de cilindros hidráulicos de excavadora
Hydraulic cylinders used in boom and arm assemblies include:
- Pistón – Actúa sobre el fluido hidráulico para extender o retraer la varilla.
- vara – Connects to the boom or arm and transmits force
- tubo del cilindro – Alberga el conjunto de pistón y varilla.
- focas – Evite fugas de líquido alrededor del pistón y el vástago.
- Bujes – Reducir la fricción dentro de las conexiones de los pasadores.
Maintaining Excavator Hydraulic Cylinders
Routine maintenance should include:
- Checking for leaks around seals, cylinders and hoses
- Inspecting rods/tubes for dents, rayones o desgaste excesivo
- Lubricating bushings and pins with grease every 50 horas
- Checking hoses/fittings for cracks, daños o accesorios sueltos
- Prueba de rango completo de movimiento – Los cilindros deben moverse libremente.
Proper maintenance and timely replacement of the boom and arm cylinder assemblies is critical to maximizing the performance, productivity and life of an excavator. Neglected or worn hydraulic cylinders can drastically reduce excavator efficiency, costing operators time and money.