Note: The rotating face of the metal pusher seal should be assembled onto the shaft or
shaft sleeve before the shaft assembly is lowered into the casing. Ensure the seal set
screws are fastened to the shaft or shaft sleeve before closing the pump.
2. The upper casing must be fastened to the lower casing before installing the stationary
head of the mechanical seal and seal gland.
MR5, MR6, MR6, and MR8 Cartridge Seals
1. When following the drop-in stuffing box assembly instructions for seal installation,
lower the impeller and shaft assembly, with shaft sleeves (if applicable), into the lower
casing before attempting to install the cartridge seal.
2. Close the casing before installing the cartridge seal.
Packing
1. When following the drop-in stuffing box assembly instructions for packing installation,
lower the impeller and shaft assembly, with shaft sleeves, into the lower casing and
close the pump before attempting to install the packing pings, lantern ring, and
packing glands.
Note: The flush line port for packing configuration feeds through the upper casing.
6.6.6 Assemble the hex coupling guard for guards with vertical supports
Figure 33: Fully assembled coupling guard
1. Identify the parts of the coupling guard. The following instructions will reference items
in the following figure and table.
6 Maintenance
92 e-XC INSTRUCTION MANUAL
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