VERDER PACKO ZL Series Operation & Maintenance Manual page 22

Single Mechanical Seal Maintenance
Remove the Seal ring from the rotor case & rotor (shown in
Figure 13) and inspect them. If any seal is damaged, do not re-
use and replace it.
Clean both shaft ends and the rotor case before assembling.
Push the replacing NEW Seal ring into the rotor case O-ring and
turn fit into the seal pins on the seal body after Rotor Case
Assembly (chapter 6.4).
Place the rotor case face down on the table and loosen the
wrench bolts and washers using appropriate wrench.
Pull out the single mechanical seal bases out of the rotor case.
Insert the replacing NEW seal body into the rotor case and
tighten the wrench bolts and washers.
And see 'Rotor Case Assembly' (chapter 6.4) to continue.
Double Mechanical Seal Maintenance
Remove the Seal ring from the rotor case & rotor (shown in
Figure 16) and inspect them. If any seal is damaged, do not re-
use and replace it.
Clean both shaft ends and the rotor case before assembling.
Slide and insert the replacing NEW seal ring into the rotor case
after Rotor Case Assembly (chapter 6.4).
After the rotor case has been removed (Figure 5), pull out and
remove the Double seal rotating part from the shaft and inspect
them. If any Double seal rotating part, Seal face or O-ring is
damaged do not re-use and replace it.
Clean both shaft ends and the rotor case before assembling.
Lubricate the replacing NEW Double seal rotating part O-ring
and install it in the Double seal rotating part. Slide the Double
seal rotating part on the shaft making sure to line the slot on
the Double seal rotating part to the pin in the shaft.
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
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