Xylem e-XC, Instruction Manual

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6.6 Reassembly
6.6.1 Pump assembly
Before assembling the pump, identify your pump configuration to ensure the correct set
of assembly instructions are adhered to. View the e-XC pump exploded view in
e-XC
exploded view on page 104 and become familiar with the general assembly layout of the
pump as well as part names. This will allow for easier understanding of assembly
instructions.
Check which of the following characteristics apply to your pump; circle the main features
within your configuration for future reference, if desired.
Characteristic Configuration Option
Casing Design
1
Drop-in stuffing box
2
Integrated stuffing box
3
Shaft Design Shaft with sleeve (Dry Shaft) Sleeveless shaft (Wet Shaft)
Sealing Option Packing Mechanical Seal Cartridge Seal
Mechanical Seal
Model
4
MR1 MR2 MR3 MR4
Cartridge Seal Model
4
MR5 MR6 MR7 MR8
Bearing Lubrication
Method
Grease Oil
1
See the e-XC Performance Curves and Technical Data document to determine which casing design applies for any
given model.
2
The drop-in stuffing box design utilizes a removable seal chamber as the fastening point for the various sealing
configurations. The stuffing box may also be known as a seal body.
3
The integrated stuffing box design incorporates the seal chamber into the upper and lower casing halves. Therefore,
sealing components fasten directly to the pump casing.
4
Row is only applicable for either mechanical or cartridge seal configurations. For more information on the MR series
mechanical seals, see the e-XC Performance Curves and Technical Data document.
WARNING:
• Always disconnect and lock out power to the driver before you perform any installation
or maintenance tasks. Failure to disconnect and lock out driver power will result in
serious physical injury.
NOTICE:
All bearings, O-rings, gaskets and seals should be replaced with new parts during
assembly. All reusable parts should be cleaned of foreign matter before assembly.
6.6.2 Pump assembly for pumps with drop-in stuffing box and sleeve over shaft (dry shaft)
design
• All bearings, O-rings, seals and gaskets should be replaced with new parts during
reassembly. Any other parts that are reused should be thoroughly cleaned before
reassembly.
• The main casing joint gasket should be trimmed according to the parting flange
profile of the lower casing. Ensure the gasket is flush with the inside edges of the
casing. Spray 3M Super 77 adhesive on the lower casing parting flange for better
gasket adhesion.
• For all assembly instructions, assemble from the outboard (non-drive end) of the pump
unless stated otherwise.
6 Maintenance
e-XC INSTRUCTION MANUAL 65