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4.4.6 Triennium Pump Maintenance
Perform the following as a minimum to maintain pump dependability and optimum performance.
• Perform the gearbox fluid change at a minimum of every three years (36 months) or more
often if conditions indicate.
4.4.6.1 Gearbox Fluid Change
Use the lubricant listed in the paragraph 7.4.4.1.1, Recommended Gearbox Lubricants, in the
Flex Series Single Stage Booster Pump OIM (FSG–MNL–00183), when lubricating the gearbox.
Lubricate the gearbox as instructed in paragraph 7.4.4.1 Fluid Change Procedure, in the Flex Se-
ries Single Stage Booster Pump OIM (FSG–MNL–00183), according to the schedule in Table 7,
Recommended Preventive Maintenance.