20
Changing of valves and diaphragms
Valves
Dismantle valve compartment 1. Before changing the valves 2 note the
orientation of the valves so that they may be replaced correctly.
Important: For model 361 one special valve with red flap 2A is to be
placed in the valve opening shown.
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
compartment as indicated above. 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
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