Bell & Gossett AC8584D Series HSCS Base Mounted Centrifugal Pumps - Manual (Page 17)

Specifications – Grease Types
Polyurea-based greases Lithium-based greases, NLGI 2
Pumps built on or after Dec 1, 2014 use Polyurea-based greases.
See date code label and lubrication label on pump or bearing
frame indicating polyurea-base grease
Pumps built before Dec 1, 2014 were built with Lithium-based
greases, NLGI 2, and do not have lubrication label on pump or
bearing frame indicating pump grease type
ExxonMobil Polyrex™ EM Shell Gadus® S2 V100 2 (was Alvania® RL 2)
Chevron SRI NLGI 2 Chevron Multifak® EP 2
Shell Gadus® S5 T100 2 ExxonMobil Unirex™ N2
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Bearing Lubrication – Oil
Oil lubrication on HSCS Series pumps is considered special. Oil
lubrication pumps are installed with Trico oilers (See Figure 11).
The oilers keep the oil level in the housings constant.
After the pump has been installed, flush the housing to remove
dirt, grit, and other impurities that may have entered the bearing
housing during shipment or installation. Then refill the housing
with proper lubricant. (The housing must be filled using the Trico
oiler.) The oil level will be maintained by the Trico oiler. (See the
SERVICE section for proper instructions.)