Figure 4 Gas-ballast O-ring removal and replacement
1. Gas-ballast control 2. O-ring
3. Filter element
1. Gas-ballast control 2. O-ring
3. Filter element
6.7 Clean the motor fan-cover and enclosure
If the motor fan-cover and enclosure are not kept clean, the air ow over the motor can
be restricted and the pump may overheat.
1. Switch o the pump and disconnect it from the electrical supply.
2. Use a dry cloth and a brush to remove dirt and deposits from the fan-cover and
enclosure.
6.8 Clean and overhaul the pump
Clean and overhaul the pump as described in the instrucons supplied with the clean
and overhaul kit (see Spares and accessories on page 36).
6.9 Fit new blades
Fit new blades to the pump as described in the instrucons supplied with the blade kit
(see Spares and accessories on page 36).
6.10 Replace the capacitor and test the motor
Replace the capacitor as described in the instrucons supplied with the capacitor kit.
Test the earth (ground) connuity and the insulaon resistance of the pump motor, in
accordance with local regulaons for periodic tesng of electrical equipment. As per our
recommendaon:
▪
The earth (ground) connuity is less than 0.1 W.
▪
Insulaon resistance is greater than 10 MW.
If the motor fails these tests, it motor must be replaced.
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A37132880_F - Maintenance