Replace The Run Capacitor And Test The Motor; Fit New Blades; Fault Finding; Introduction - Edwards A373-30-940 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. We recommend that:
The earth (ground) continuity is less than 0.1 Ω.

Insulation resistance is greater than 10 MΩ.

If the motor fails these tests, you must 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 you in basic fault-
finding. If you are unable to rectify a fault when you use this guide, call your supplier or your 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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Edwards and the Edwards logo are trademarks of Edwards Limited.
WARNING
A373-10-880 Issue R
Table 11,
Section 7.3).
Page 27