Replace The Run Capacitor And Test The Motor; Fit New Blades; Fault Finding; Introduction - Edwards E2M28 Instruction Manual

5.9

Replace the run capacitor and test the motor

Change the run capacitor as per the maintenance plan.
Replace the run capacitor as described in the instructions supplied with the capacitor kit. Refer to
Section 7.3.
Test the earth (ground) continuity and the insulation resistance of the pump-motor, in accordance with local
regulations for periodic testing of electrical equipment. Edwards recommends that:
The earth (ground) continuity is less than 0.1 Ω.

Insulation resistance is greater than 10 MΩ.

If the motor fails these tests, replace the motor.
5.10

Fit new blades

Fit new blades to the pump as described in the instructions supplied with the blade kit (refer to
5.11

Fault finding

5.11.1

Introduction

A list of fault conditions and their possible causes is provided in the following sections to assist in basic fault-finding.
If unable to rectify a fault when using this guide, call the supplier or the nearest Edwards Service Centre for advice.
5.11.2

The pump has failed to start

The electrical supply fuse has failed.

The motor is incorrectly wired.

The operating voltage does not match that of the motor.

The exhaust filter or exhaust line is blocked.

The oil temperature is below 13°C.

The oil is too viscous.

The oil is contaminated.

The pump is seized after long storage, or has been left to stand after pumping contaminants.

The motor is faulty.

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WARNING
A373-10-880 Issue T
Table 11,
Section 7.3).
Page 29