Bell & Gossett P81875G Series HSC-S Centrifugal Pump - Manual (Page 16)

16
Regrease the grease-lubricated bearings
It is important to lubricate pumps and motors that require regreasing
with the proper grease. See the motor service instructions and
nameplate for motor regreasing information. Pumps are to be
regreased using the grease types listed below or approved equal.
Always keep pump and motor properly lubricated.
NOTICE:
Make sure the grease container, the greasing device, and the
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the bearing housing when you regrease the bearings.
1. With fully enclosed coupling guards, regrease pump while pump
is running.
a. With old style open ended guards, stop pump, re-grease,
and hand turn shaft before re-starting.
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-PSSIV[OVM[OLNYLHZLJH]P[PLZ[OYV\NO[OLÄ[[PUNZ^P[O[OL
recommended grease. Stop when grease leaks out at shaft.
0MULLKLKZ[VWW\TWHUK^PWLVɈL_JLZZNYLHZL
5. Restart pump.
The bearing temperature usually rises after you regrease due
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about two to four operating hours as the pump runs and purges
[OL L_JLZZ NYLHZL MYVT [OL ILHYPUNZ 4H_PT\T UVYTHS ILHYPUN
OV\ZPUN [LTWLYH[\YL MVY WVS`\YLHIHZLK NYLHZL PZ  ‡-  ‡-
HUKMVYSP[OP\TIHZLKNYLHZL ‡- ‡*
Lubricating grease requirements
NOTICE:
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53.0  VY ^P[O KPɈLYLU[ [OPJRLULYZ -VY L_HTWSL UL]LY TP_
lithium-based grease with a polyurea-based grease. This can
result in decreased performance.
࠮9LTV]L [OL ILHYPUNZ HUK VSK NYLHZL PM `V\ ULLK [V JOHUNL
[OLNYLHZL[`WLVYJVUZPZ[LUJ`-HPS\YL[VKVZVJHUYLZ\S[PU
equipment damage or decreased performance.
Type of
bearing
First lubrication,
assembled
pumps and
replacement
bearing frames
First
lubrication,
replacement
bearings
Lubrication interval,
pump, polyurea-based
grease, operating hours
Grease-
lubricated
bearings Not applicable,
lubricated before
shipment Hand pack
bearings before
pressing on
the shaft. After
bearing frame
assembly,
follow relube
instructions to
lube bearings. s
conditions: dirty, wet
ANDOR
s
TEMPERATURE
s
grease
BEARING MAINTENANCE
3. Bearing lubrication schedule