3
2
Cartridge Seal Installation
For proper seal installation, you must obtain the correct seal assembly drawing for your application.
2.1
Lubricate the shaft or sleeve lightly with lubricant provided with the seal.
2.2
Install gland gasket - Use lubricant provided if necessary to retain gasket.
2.3 Install the complete cartridge seal assembly on the shaft.
2.4 For overhung pumps: Position the seal close to the bearing housing with the seal oriented
toward the pump. Install the pump back-plate or seal housing and assemble the pump.
2.5
Orient ports on the seal cartridge as shown on the seal assembly drawing.
2.6 Position the cartridge gland against the seal housing face and tighten the gland stud nuts up
evenly, cross staggering the adjustment of the nuts. Follow the equipment manufacturer’s
recommendation for gland stud nut torque. In the absence of recommendations, gland stud
nuts should only be torqued to establish a leak tight seal at the gasket.
2.7 For between bearings pumps: Assemble the bearings, coupling, etc. and adjust the impeller so
that the shaft is in its operating axial position.
2.8
For end suction pumps: Adjust the bearings, coupling, and impeller so that the shaft is in its
operating axial position.
2.9 Tighten the set screws on the seal cartridge drive collar. See Section 3 if your seal is equipped
with a shrink disc drive collar
Note
Any subsequent axial adjustment of the shaft requires resetting of the seal.
2.10 Disengage or remove setting devices. Eccentric washer or slotted plate type setting devices
should be repositioned clear of rotating parts and locked to the gland in a neutral position.
Ensure that plates cannot fall back onto the sleeve as to prevent risk of contact between rotating
and static parts.
Centering type devices cap screwed to the sleeve drive collar should be removed and stored for
future seal removal and repair. All setting device types need to be reinstalled for resetting the
seal when repositioning the pump impeller.
2.11 Inspect equipment and driver alignment in accordance with coupling and / or equipment
manufacturer's instructions.
2.12 After bringing the unit up to operating conditions (pressure and temperature), recheck
pump to driver alignment. Make adjustments as necessary
2.11 See Operational Recommendations, paragraph 4 and 5, before starting pump.
Gland Stud Nuts
Setting Plate Bolts
Setting Plates
Drive Collar
Set Screws
Sleeve Gasket
Gland Gasket
!
Figure 6
