Servicing
Diaphragm pump N680 EX
36
Translation of Original Operation and Installation Instruction, english, KNF 325438 02/22
WARNING
Risk of injury and poisoning from leaks
à
Before recommissioning the pump, check the
pump heads and pneumatic connections for
leaks. Leaks may lead to poisoning, chemical
burns or similar injuries.
9.4 Checking and replacing sprocket on coupling
Requirements
à
Disconnect the motor from mains and ensure that it is voltage-free.
à
Allow the pump and the motor to cool.
CAUTION
Risk of burns from hot pump parts
The pump head or motor may still be hot after op-
eration of the pump.
à
Allow the pump to cool after operation.
Tool and material
Quantity
Tool/material
1
Feeler gage 3 mm
1
Test adapter for coupling (see Chapter
)
1
16mm open-end wrench with torque indicator
Tab.22
Spare parts
Spare part
Item designation
Quantity
Sprocket
(4)
1
Tab.23
