l
Put the O-Ring on the rear of the back housing.
l
Fit the seal face together in the rear of the back housing. Make sure that the pins in the spring
assembly fit into the notches in the seal face.
The pins need to match the according notches to prevent the part from rotating.
l
The seal face is in place once a catching can be noticed and the seal face stays in place.
l
A higher force might be required.
Check for compression of the spring assembly.
l
Install the back housing with the assembled seal system on the end shield. Make sure you install it in
the required orientation. (See See Possible pump orientations on page 16 .)
l
Tighten the screws by turning them clockwise.
The first part of the back seal system installed in the pump back housing.
l
Carefully assemble the support unit with the installed seal face.
l
Tighten the screws on the support at the back of the housing, by turning them clockwise using a
wrench.
View into the open area showing the back seal system installed.
For an explanation of the assembly procedure for the front seal assembly, please refer to See Assembling
the front mechanical seal on page 31.
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