M&C TechGroup MP47 Ex Operator's manual - Handbuch (Seite 45)

Diaphragm Pumps PJ19424-726 Servicing
Translation of Original Operating- and Installation Instructions, english, KNF PJ19424-726 01/13 17
8. Servicing
8.1. Servicing schedule
WARNING
Danger of explosion due to wear!
Î Have connecting rod bearing replaced by KNF
according to servicing schedule.
Î Have motor bearings replaced by KNF according
to servicing schedule.
Component Servcing interval
Pump Regular inspection for external damage
or leaks
Molded diaphragm
and valve plates Replace at the latest, when pump output
decreases
Connecting rod bear-
ing Have it replaced after 17,000 operating
hours or 24 months at the latest
Motor bearings Have them replaced after 17,000 operat-
ing hours or 24 months at the latest
Tab. 11
8.2. Cleaning
8.2.1. Flushing pump
WARNING
Danger of explosion when flushing pump
with air!
Î
In hazardous areas, or in cases when the pump
is used with explosive media, only have pump
flushed with inert gas by specially trained per-
sonnel.
Î Flush the pump for several minutes with inert gas under at-
mospheric conditions before switching it off.
If there is no danger of explosion, air can also be used for
flushing.
8.2.2. Cleaning pump
WARNING
Danger of explosion from electrostatic
charging of components!
Î
Only clean pump with a damp cloth.
Î Only clean the pump with a damp cloth and non-flammable
cleaning agents.
Î If compressed air is available, blow out the components.