Objectives
Identify the common types of positive displacement pumps and their operation. You should also identify the effects of excessive pressure produced by a positive displacement pump and the function of a relief valve.
List common applications for positive displacement pumps.
Describe the major steps involved in disassembling screw type positive displacement pumps using the manufacturer's manual.
Describe the major steps involved in reassembling positive displacement pumps using the manufacturer's manual.
Describe the major steps involved in performing positive displacement pump inspections.
Identifying positive displacement pump commonly used replacement parts.
Describe the major steps involved in overhauling positive displacement pumps.
Describe the major steps involved in overhauling piston pumps.
Describe the major steps involved in overhauling diaphragm pumps.
Describe the major steps involved in overhauling lobe pumps.
Describe the major steps involved in overhauling vane pumps to criteria in manuals.
Describe the major steps involved in overhauling liquid ring pumps.
Identify a pump's pumping element and describe the major steps involved in repairing the shafts and pumping elements.