Wilo EMU KS 5 Ex Notice De Montage Et De Mise En Service page 242

en
13.1.6 Maintenance and repair
13.1.6.1 Repair of housing coating
13.1.6.2 Changing the mechanical seal
13.1.6.3 Changing the power supply cable
242
Appendix
▪ The operator is responsible for defining the potentially explosive area.
▪ Only pumps with corresponding Ex rating may be used within a potentially explosive
area.
▪ Pumps with Ex rating must be labelled on the rating plate.
▪ 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 seal on the fluid and motor side is strictly prohibited!
Changing the power supply cable is strictly prohibited!
WILO SE 2018-05