Edwards E2M275 User Manual

A366-04-880 Issue A
Page 26 © Edwards Limited 2014. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Maintenance
5.12.3 The pump is noisy
 The motor bearings are worn
 The oil is contaminated with solid particles
 The motor coupling is loose
 A blade is sticking.
5.12.4 The pump is too hot
 The ambient temperature is too high
 The cooling-water supply has an insufficient flow rate
 The electrical supply voltage is too high
 The outlet-filter or the outlet pipeline is blocked
 The oil-level is too low
 You have filled the pump with the wrong type of oil
 The oil is contaminated
 The process gas is too hot or the throughput is too high.
5.12.5 The vacuum is not fully maintained after the pump is switched off
 The gas-ballast control is open
 Damaged or missing O-ring
 Anti-suckback valve faulty
 Shaft seals damaged
 Exhaust valve damaged
5.12.6 The pumping speed is poor
 The connecting pipelines are too small in diameter
 The connecting pipelines are too long
 The inlet-filter is blocked
5.12.7 There is an external oil leak
 The oil-pump shaft-seal is worn or damaged
 The oil-box gaskets have deteriorated
 There is an oil leak from the gas-ballast control
 There is an oil leak from the drain-tap
 There is an oil leak from the fine oil-filter element-seal.

Edwards E2M275 Specifications

General

Brand	Edwards
Model	E2M275
Category	Water Pump
Language	English