Eicom ENO-30, Руководство пользователя

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43 | P a g e
14-2. Changing the Piston Seal and Piston
1. Remove tube connectors from the inlet and outlet
check valves. Take off pump head by loosening the
nuts (2) washer. s you loosen them, alternate between
them.
2. Pull out the pump head slowly and in a straight line.
The piston is fragile. Be careful to not to break it by
twisting or using too much force as you pull out the pump
head.
Then, remove Backup Ring.
3. Lay down the pump head; inject water 2-3 mL in the
middle of the piston opening. Confirm that waters flows
out the outlet check valve.
4. Put a stopper fitting in the outlet valve. Fill the
pump head by injecting water until it overflows from
piston opening.
5. Insert the long end of the piston seal replacement
tool into the piston opening until the end of the rod
reaches the bottom. This should cause the piston seal to
be forced back up the rod of the piston seal replacement
tool until it is free.
6. If it doesn't work, the first time, repeat steps 4 and 5
until the seal is removed.
Pump Head Fix Nut
W
asher
Pump Head
Backup Ring
Overflow
Close with Stop
Fitting