Each ring must be installed separately.
a) Firmly seat each ring.
b) Use the stuffing box gland to push the packing and lantern ring into the stuffing box.
c)
Stagger the joints in each ring by 90 degrees.
Make sure the center of the lantern ring lines up with the flush tap in the stuffing box. Any extra
rings are spares.
1
2
1.
Gland
2.
packing
6.
Hand-tighten the gland nuts evenly but not tight.
7.
To remove the packing from the stuffing box, do the following:
a) Remove the gland assembly.
b) Remove the packing with a packing hook.
c)
Remove the lantern ring by inserting a wire hook into the ring on the outer edge.
d) Clean the stuffing box.
An alternate method of removing the packing is to remove the upper-half casing (see the Mainte-
nance chapter). Remove the packing and lantern ring, and then inspect the sleeves or the shaft.
Replace the sleeves or the shaft if either is deeply grooved.
5.10 Mechanical seal options
WARNING:
The mechanical seal used in an ATEX classified environment must be properly certified.
When mechanical seals are furnished, the description and identification are indicated on the order forms.
Installation drawings from the seal manufacturer are attached to pump. Most seals are installed and ad-
justed at the factory. File these drawings for future use in maintenance and adjustment of the seal when-
ever the pump is disassembled.
Prepare the seal for operation
To properly prepare the seal for operation, various cooling and flushing flows may have to be connected.
In some cases, these flows are recirculated from pump casing. In other cases, liquid from an outside
source may be used. Connect cooling and flushing flows to the seal as directed in instructions supplied
by the manufacturer.
5.10 Mechanical seal options
46
Model 3410 Installation, Operation, and Maintenance Manual
Содержание GOULDS PUMPS 3410
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