308 HYDRAULIC TROUBLESHOOTING POST TEST 2023/24 UPDATE

How should you troubleshoot an axial-piston pump with barrel blow off? Replace the wearing surfaces of barrel and plate. Excessive wear and roughness in a gear pump are indications of? Solid contaminants. Which type of hydraulic gear pump is used for booster circuits? Crescent . It is good maintenance practice to replace which of the following when a hydraulic pump is repaired? Anti-friction bearings, gaskets and seals. Which of the following is a sign of solid contaminants in a hydraulic pump? Pitted gears A stack of hydraulic control valves held together by bolts is called? / reduces the number of lines and fittings in a hydraulic system. Manifold. . Most industrial valves are ____ controlled by a ____. Pneumatically; actuator. What is the function of a control valve in a hydraulic system? Directs fluid, regulates pressure and flow. If a hydraulic system is to function properly, it must. Have all components installed correctly. A blocked port hydraulic valve symbol valve symbol is indicated by a(n) ______ shaped figure inside the envelope. T symbol . A schematic drawing with hollow arrows represents a(n) ______ system. Valve function. Which of the following tells how directional control valves should always be reassembled? Carefully What can always be safely used to clean hydraulic valve parts? System fluid. After reassembling a repaired valve, the next step is to? Test the valve. Which of the following items affects hydraulic fluid viscosity the most? Temperature . A hydraulic fluid's ability to resist permanent changes in its physical properties is called? Sher stability. . In applications where the viscosity and temperature extremes are too far apart for any hydraulic oil, you should? Install heaters and heat exchangers. When you select a hydraulic fluid, always make sure it is. Compatible with the system. Because of the motion of the hydraulic cylinder, they are defined as ____ actuators. Linear To check if a piston rod is made of steel. You can test it with a (n) Magnet. Which of the following items is essential to proper cylinder performance? Accurate mounting. A hydraulic cylinder shock absorber is adjusted by. Turning a selector knob.