Repair Of Housing Coating - Wilo Rexa PRO Instrucciones De Instalación Y Funcionamiento

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13.2.6 Maintenance and repair

13.2.6.1 Repair of housing coating

13.2.6.2 Replacing the connection cable
13.2.6.3 Changing the mechanical seal
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Appendix
▪ Do not exceed the maximum fluid temperature!
▪ Dry running of the pump must be prevented! Ensure on-site (dry-running protection)
that emerging of the hydraulics is prevented.
According to DIN EN 50495, a safety device with SIL level 1 and hardware fault toler-
ance 0 must be provided for category 2.
▪ Carry out maintenance tasks according to the regulations.
▪ Only carry out maintenance tasks mentioned in these installation and operating in-
structions.
▪ The spark-proof gaps may only be repaired according to the manufacturer's design
specifications. It is not permitted to carry out repairs according to the values in tables 1
and 2 of DIN EN 60079-1.
▪ Only use screw plugs as stipulated by the manufacturer, that at least correspond to a
strength class of 600 N/mm² (38.85 long tons-force/inch²).
The paint layer can become electrostatically charged in case of thicker
coats.DANGER! Risk of explosion! In explosive atmospheres, a discharge can cause
an explosion!
If the housing coating has to be repaired, the maximum coat thickness is 2 mm
(0.08 in)!
Changing the connection cable is strictly prohibited!
Changing the seal on the fluid and motor side is strictly prohibited!
WILO SE 2019-02