User manual

Bio-inert Quaternary Pump User Manual 127
Maintenance
9
Maintenance of the Pump Head
1
Remove the seal holder and the seal wash support rings
from the piston housing. Remove the seal holder from the
support ring assembly.
2 Using the steel side of the insert tool remove the seal
wash gasket and the secondary seal from the support
ring. The removed seal will be damaged and cannot be
re-used!
3 Using the plastic side of the insert tool press the wash
seal (spring pointing upwards) into the recess of the
support ring.
4 If the backup seal has been removed from the seal holder,
insert it in the correct orientation as shown below. Please
ensure that the cut end faces the seal holder.