KNF NF 1.100 EX Operating And Installation Instructions page 21

Diaphragm liquid pump NF 1.100 EX
Prior requirements
KNF Flodos AG BA_NF1.100EX_EN_05_152147
English translation of original Operating and Installation Instructions
Risk of explosion as a result of flushing the pump
with air
➔ In potentially explosive atmospheres, or when
WARNING
8.2.2. Cleaning the pump
Risk of explosion as a result of electrostatic charging
of components
➔ Clean the pump with a moist towel only. Do not
WARNING
➔ If there is compressed air available, blow off components.
➔ Where possible, wipe the components with a dry cloth. Do not
use cleaning solvents as these may corrode plastic parts.
➔ If there is compressed air available, blow off components.
▪
Pump or drive disconnected from the mains and de-
energized.
▪
The pump must be free of any hazardous substances
▪
Hoses must be disconnected from the pump head
▪
We recommend replacing the diaphragm when the head
parts are removed.
Tool
Qty Tools for KP, KP.51, KT and TT versions
1 Torx 20 screwdriver
1 Phillips screwdriver No. 2
Tab. 16
Dismantling the pump heads
Undo the four head screws (1) and remove the entire head
Removing the valves and seals
Remove the valve plate (6) from the intermediate plate (7).
Remove the resonating diaphragm (4), or resonating dia-
phragm.27 (16), diaphragm.27 (if fitted) (15), and pressure
spring.27 (14) from the connecting plate (5).
Remove O-ring (3).
Carefully grip the diaphragm (8) and remove by turning anti-
clockwise. Remove the U-washers (9) and make sure that no
U-washers (9) fall into the pump housing.
We recommend replacing the diaphragm (8).
Cleaning the parts
Clean the diaphragm (8), O-ring (3), resonating diaphragm (4),
or resonating diaphragm.27 (16), diaphragm.27 (if fitted) (15),
using the pump with potentially explosive medi-
um, only allow the pump to be flushed with inert
gas by specialist personnel.
use flammable cleaning agents.
Servicing
21