Goulds Pumps 3996 - IOM - Manual (Page 25)

OPERATION
PREPERATION FOR STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
STARTING PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
FINAL ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PREPARATION FOR STARTUP
CHECKLIST
!
When installing in a potentially explosive
environment, ensure that the motor is properly
certified.
1. Checking Rotation
$
CAUTION
Serious damage may result if pump is run in the
wrong rotation.
a. Lock out power to driver.
s
! WARNING
Lock out driver power to prevent accidental start-up
and physical injury.
b. Make sure coupling hubs are securely fastened to
the shafts and the coupling spacer has been
removed.
NOTE: Pump is shipped with coupling spacer
removed.
c. Unlock driver power.
d. Make sure everyone is clear. Jog driver just long
enough to determine the direction of rotation.
Rotation must correspond to arrow on bearing
housing.
e. Lock out power to driver.
2. Lubrication
!
Bearings must be lubricated properly in order to
prevent excess heat generation, sparks and
premature failure.
Grease Lubrication
Greased lubricated ball bearings are standard on the
Model 3996 units.
The bearings are greased at the factory.
See Preventive Maintenance section for lubrication
recommendations.
Pure Oil Mist Lubrication
Pure oil mist is an optional feature for the Model 3996.
Follow oil mist generator manufacturer’s instructions.
The inlet and outlet connections are located on the side of
the bearing frame.
See Preventive Maintenance section for lubrication
recommendations and connection locations.
s
! WARNING
Operation of the unit without proper lubrication will
cause bearing failure and pump seizure.
3. Alignment - As described in the Alignment section,
alignment is normally built-in and need not be
rechecked.
4. Stuffing Box - Pumps are shipped without packing,
lantern ring or split gland installed. These are
included with the box of fittings shipped with the
pump and must be installed before start-up.
!
Packed stuffing boxes are not allowed in an ATEX
classified environment.
!
The mechanical seal used in an ATEX classified
environment must be properly certified.
a. Packing - Stuffing box packing, lantern ring and
gland are in the box of fittings supplied with the
pump. Install 3 rings of packing, the two piece
lantern ring (notched sides facing), 2 more rings
of packing and the gland. Twist rings sideways
instead of straight out when putting them on the
shaft to avoid damaging them. Seat each ring
firmly as it is installed, and stagger the joints
90°. Gland should be drawn up only finger tight.
3996 IOM 9/2010
21
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