LUBRICATION
LIQUID END of pump requires no lubrication. Wear rings,
packing rings, and models using a mechanical shaft seal, are
lubricated by the liquid being pumped.
Do Not Run Dry!
BRACKET: Add approximately 2 oz. of a lithium-based NLGI
No. 2 extra pressure ball bearing grease to each bearing
during quarterly inspection. Refer to pump parts drawing on
Page 24, grease fittings are labeled with a circled “L”.
Excessive grease will cause bearings to run hot.
NOTE:
Grease fitting in packing area is for priming only. See
Priming in start-up section for instruction.
The following brands of bearing grease are factory approved
by Berkeley Pumps and are recommended for use in main-
tenance operations.
• Shell Brand Alvania Grease EP2
• Mobil Oil brand Mobilith AW#2
• Exxon Ronex MP
• Atlantic Richfield Litholine EP2
• Amoco Amolith EP2
ENGINE: Refer to engine manufacturer’s operating manual
for complete maintenance instructions.
PERFORMANCE CHECK
Periodically check the output of the pump. If performance is
noticeably reduced, refer to Troubleshooting Chart.
OBSERVATIONAL MAINTENANCE
When the pump and system operation have been stabilized,
verify that pump unit is operating properly. Observe the
following:
VIBRATION: All rotating machines can be expected to
produce some vibration, however, excessive vibration can re-
duce the life of the unit. If the vibration seems excessive, dis-
continue operation, determine cause, and correct.
NOISE: When the unit is operating under load, listen closely
for unusual sounds that might indicate that the unit is in dis-
tress. Determine the cause and correct.
OPERATING TEMPERATURE: During operation, heat is
dissipated from the pump and the driver. After a short period
of time, the surface of the pump bracket near the bearings will
be quite warm (as high as 150° F), which is normal. If the
surface temperature of the pump bracket or engine is
excessive, discontinue operation, determine cause of
temperature rise, and correct. Bearings will run hotter for a
brief run-in period after packing, which is normal. However,
worn bearings will cause excessive temperatures and need to
be replaced. The pump unit is cooled by the water flowing
thorough it, and will normally be at the temperature of the
water being pumped.
STUFFING BOX. After a short period of operation, verify that
the stuffing box area and gland are not hot. If heating is
detected, loosen the gland nuts evenly until water is just
running out of stuffing box in
DROPLET form (40 to 60 drops
per minute). Water must not be streaming or spraying out.
Verify cool operation periodically. Adjust gland nuts
EVENLY
as necessary for lubrication and cooling of the packing. If
packing has been tightened to the limit of the packing travel,
additional packing is necessary.
REPACKING
Refer to illustration on Page 17.
MECHANICAL SEAL
Adjustment or maintenance is not required. The seal is
enclosed within the pump and is self-adjusting. Seal is cooled
and lubricated by the liquid being pumped.
PUMP PROTECTION – COLD WEATHER/
WET WEATHER INSTALLATIONS
SYSTEM DRAINS: Provide drain valves to empty system,
including pump case, to prevent freezing damage.
SHELTER: If possible, provide shelter for unit to protect from
weather. Allow adequate space around pump unit for service.
When effectively sheltered, a small amount of heat will keep
temperature above freezing. Provide adequate ventilation for
unit when running.
CONDENSATION: When the temperature of metal parts is
below dew point and the surrounding air is moist, water will
condense on the metal surfaces and can cause corrosion
damage. In severe situations, a space heater can be
considered to warm the unit.
Page 16
F00636
General Information
Maintenance
Summary of Contents for S.A.E.
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