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EBARA Submersible Grinder Pumps
Operating, Installation, and Maintenance
Maintenance and Service
2. Regular inspections:
(1) Monthly inspections
Measure the insulation resistance. The value should be more than 1 mega ohm. If resistance starts to fall
rapidly even with an initial indication of over 1 mega ohm, this may be an indication of trouble and repair
work is required.
(2) Every 6 months
Check the mechanical seal every six months. If you
notice water mixed with the oil or cloudy texture of
the oil, these may be indications of a defective
mechanical seal requiring replacement. The
service life of the mechanical seal can be
prolonged by replacing the oil in the mechanical
seal chamber once a year.
When replacing oil, inject turbine oil No. 32 (ISO VG-32) until it overflows (Fig. 5). Be certain to dispose of oil
residue properly.
(3) Preventive maintenance yearly
Conduct an overhaul of the pump annually. These intervals will reduce the possibility of future trouble.
3. Parts that will need to be replaced:
Replace the appropriate part when the following conditions are apparent.
Replaceable part
Replacement guide
chamber is clouded
Frequency
Above replacement schedule is based on normal operating conditions.
EBARA Fluid Handling
www.pumpsebara.com
(t) 803 327-5005 • (f) 803 327-5097
HP
2
3
5
Table 1
Mechanical Seal
Oil filler plug gasket
Whenever oil in
Whenever oil is
mechanical seal
replaced or inspected
Annually
Oil
41 ozs
43 ozs
43 ozs
Lubricating oil
Whenever clouded
or dirty
Annually
Annually
DGUII/DGFU
O-ring
Whenever pump is
overhauled
Annually
9
rev. 11/05
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