Sect. I. Identifying gear pump models and components -- Sect. II. How a gear pump operates -- Sect. III What causes pump failure.

Modern construction, logging, mining and material handling machines use hydraulic systems extensively. To meet these machines productivity demands hydraulic systems must be able to handle high pressures and large capacities. Higher pressures impose greater stress on all components in hydraulic systems. Nonetheless, increased reliability is required for operational safety. Careful maintenance is essential to reduce failure rate, ensure safe machine operation and extend the service life of the pump.

DVD