Changing Of Valves And Diaphragms - Hardi NL Series Instruction Book

Changing of valves and diaphragms

Valves
Remove valve cover 1. Before changing the valves 2 note the orienta-
tion of the valves so that they are replaced correctly.
It is recommended to use new gaskets 3 when changing or checking
the valves.
Diaphragms
Remove the diaphragm cover 4 after having dismantled the valve
cover. The diaphragm 5 may then be changed. If fluids have reached
the crankcase, re-grease the pump thoroughly. Check also the drain
hole at the bottom of the pump is not blocked.
Model 1202
Model 600
16