5.6.3 Lubricating-grease requirements
Precautions
NOTICE:
Avoid equipment damage or decreased performance. Never mix greases of different con-
sistencies (NLGI 1 or 3 with NLGI 2) or with different thickeners. For example, never mix a
lithium-based grease with a polyurea based grease. If it is necessary to change the grease
type or consistency, remove the rotor and old grease from the housing before regreasing.
Grease quality requirements
Use a high-quality grease lubricant corresponding to NLGI Grade 2.
Grease lubrication
Consider this information when you lubricate with grease:
•
Pumps are delivered from the manufacturer with lubricated bearings and are ready to be used.
•
The bearings are filled with lithium-based grease, which is suitable for a temperature range
from -30°C to 90°C | -22°F to 194°F when measured at the surface of the bearing frame.
•
Make sure that bearing temperatures, measured at the bearing frame, are no more than 50°C |
122°F above the ambient temperature and never exceed 90°C | 194°F when checked weekly.
5.7 Shaft-sealing options
In most cases, the manufacturer seals the shaft before shipping the pump. If your pump does not
have a sealed shaft, see the Shaft-seal maintenance section in the Maintenance chapter.
This model uses these types of shaft seals:
•
Cartridge mechanical seal
•
Conventional inside-component mechanical seal
•
Conventional outside-component mechanical seal
•
Packed-stuffing-box option
5.7.1 Mechanical seal options
Pumps are usually shipped with mechanical seals installed. If they are not, then refer to the mechani-
cal seal manufacturer's installation instructions.
These are the mechanical seal options for this pump:
•
Cartridge mechanical seal
•
Conventional inside component mechanical seal
•
Conventional outside component mechanical seal
5.7.2 Connection of sealing liquid for mechanical seals
Seal lubrication is required
Seal faces must have liquid film between them for proper lubrication. Locate the taps using the illus-
trations shipped with the seal.
5.7 Shaft-sealing options
Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual
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