Goulds Pumps 4550 - IOM - Manual (Page 18)

5. Be sure the source of lubrication to the line bearings
on 4550 Series vertical pumps has been connected if
an external flush source is required. Check all fittings
at the line bearings to be sure no damage has
occurred during shipment.
6. Connect level control, if the pump is so equipped.
ASSEMBLY OF MOTOR TO MOTOR
SUPPORT
If motor is shipped from ITT Goulds' factory, both
coupling halves will be assembled on shafts in their
correct positions. If motor is shipped direct or furnished
by customer, the motor half coupling must be fitted on
motor shaft.
Place motor on motor support (240) and tighten hex cap
screws snugly.
ROTATION CHECK
Before coupling is connected, motor should be wired and
the direction of rotation checked. A rotation arrow is
located on the motor support (240).
Standard rotation for Model 4550 is clockwise (CW) as
viewed from the driver.
s
! CAUTION
Serious damage may result if pump is run in the
wrong direction.
CONNECTION OF PIPING
Connect discharge piping to discharge pipe flange (195)
above mounting plate (189). This piping should be
independently supported, should align naturally with the
discharge flange, should be as direct as possible, and
should have a minimum number of fittings. A gate valve
should be used for flow control. There should be no strain
on the piping, and a properly restrained expansion joint
must be used.
s
! WARNING
Never draw piping into place by forcing at the
flange connections of the pump. This may impose
dangerous strains on the unit and adversely affect
the operation of the pump resulting in physical
injury and damage to the equipment.
ALIGNMENT OF FLEXIBLE
COUPLING
Check for coupling alignment by laying a straight edge
across both coupling rims at four points 90 degrees apart.
When the straight edge rests evenly at all four points, the
coupling will be in correct alignment. Tighten hex cap
screws (370U).
IMPELLER ADJUSTMENT - ALL
MODELS
NOTE: All models are preadjusted before leaving
the factory. Check to see if shaft turns freely by
hand. If no binding is noted, no further adjustment
is needed. If binding is noted, follow adjustment
procedure below.
s
! WARNING
Never adjust impeller with coupling connected.
The impeller must be adjusted with the pump mounted in
the vertical position.
Impeller Adjustment for 4550 Series Vertical Sizes
1x1.5-6 3x4-8
1.5x3-6 1.5x3-10
2x3-6 2x3-10
1x1.5-8 3x4-10
1.5x3-8 4x4-10
2x3-8
1. Loosen bearing cap set screw.
2. Loosen clamping screw in adjusting collar (283A).
3. Slowly rotate adjusting collar counterclock-wise
while pushing down on shaft, and rotate shaft until
you feel the impeller touch the casing face.
4. Place a dial indicator on the end of the shaft. Rotate
the collar clockwise (CW), raising the shaft to the
clearance specified in Table 1.
NOTE: For “Quick Field” adjustment, rotate the
collar 90° clockwise, while securing the shaft.
5. Re-lock adjusting collar clamping screw (283A).
6. Tighten set screw.
7. Rotate shaft by hand to insure that there is no binding
or rubbing of parts.
Table 1
Impeller Diameter
(Inches)
Clearance
(Inches)
Up to 8" .015
8" to 10" .020
10" to 15" .025
14
4550 IOM 5/08