Fluid Power Systems

Chapter 5 — Hydraulic Pumps 153

6. The technician responsible for inspecting Hydraulic System notices that the pump efficiency is down 12% at each flow meter. List at least five possible reasons for lower pump efficiency. Note: Assume that the system could possibly be damaged.

CYLINDER 1

CYLINDER 2

FM1

FM2

CYLINDER 3

FM3

TEE FITTING

PUMP DIRECTIONAL CONTROL VALVE 2 DIRECTIONAL CONTROL VALVE 1

ELECTRIC MOTOR

RESERVOIR

HYDRAULIC SYSTEM

DIRECTIONAL CONTROL VALVE 3

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Fluid Power Systems

Published on Jun 21, 2017

American Technical Publishers

Fluid Power Systems is a text/workbook that covers topics specifically relating to the design, application, and maintenance of hydraulic and pneumatic systems. This new edition has been redesigned and includes expanded content on hydraulic pumps, fluid conductors, connectors, and means of transmission. The text/workbook addresses fluid power systems, components, and devices specific to industrial, commercial, and mobile power equipment applications such as pumps, valves, actuators, electrical controls, and troubleshooting techniques. Each component, device, or system is introduced with descriptions, operation, common applications, system examples, and operating characteristics. Schematic symbols are introduced throughout the textbook to assist the learner with schematic diagram comprehension.

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Fluid Power Systems by American Technical Publishers - Issuu