9.0
SEAL MAINTENANCE AND REPAIR cont.
4
7
1
5
8
2
Remove dog point set screws and TORX screw
from lock ring and discard.
Invert gland assembly and remove stationary
seal ring and discard.
Prepare a clean work surface for seal
disassembly and rebuild.
Remove lock ring from sleeve.
Remove old pipe plug if it is still installed and
discard.
Remove face gasket O-Ring (not all sizes)
discard.
Separate gland assembly from sleeve
assembly.
Disengage centering clips and remove screws,
clips, and bushings from pusher and discard.
6
3
9
Invert gland assembly. Remove shoulder
screws and discard. Lift pusher from gland
assembly.
9.2 Seal Maintenance
A correctly installed and operated mechanical seal requires little
maintenance. It is recommended to periodically check the seal for
leakage. Wearing components of a mechanical seal such as seal
faces, O-Ring, etc., require replacement over time. While a seal is
installed and operating, maintenance is not possible.
Therefore it is recommended that a spare seal unit or a spare
parts kit be held in stock to allow quick repair.
1. The following items, in addition to hex wrenches, grease and
cleaning wipes, will be required for rebuild:
• Adjustable wrench
• Flat ruler or straight edge
2. Note the condition of the parts, including elastomer surfaces
and gland springs. Analyze the cause of failure and correct the
problem, if possible, before reinstalling the seal.
3. Clean all elastomer and gasket surfaces with cleaning solvent.
9
