Goulds Pumps 3311 - IOM - Manual (Page 15)

15
5.3.7 Installation of the set
The complete set mounted on the baseplate must be
placed on the foundation with its foundation bolts
suspended. If heavy load plugs are used, first screw in the
threaded rods in the plugs.
5.4 Motor
Prior to assembly the direction of rotation of the motor
must be checked (arrow on pump bearing housing).
5.5 Alignment of the set
- Place shims under the baseplate on both sides of the
foundation bolts (see Fig.).
- Use a spirit level to align the set.
- If the foundation bolts are more than 800 mm apart,
place additional shims between the foundation bolts to
prevent the baseplate from sagging. Care should be
taken to minimize distortion of the baseplate during
installation.
- The foundation bolts should be embedded in concrete
using quick-setting grout (this is not required if heavy
load plugs are used).
- Tighten the nuts of the foundation bolts in diagonal
sequence (after the grout has set).
- Re-check alignment with a spirit level.
2
1
1 Shims
2 Additional shim, if foundation bolt distance
≥ 800 mm
Position of the shims
After aligning the set the axial clearance between the two
coupling halves measured at one point of the coupling
must be the same over the complete circumference of the
coupling, the permissible tolerance being ± 0.05 mm.
Carry out the radial alignment of the coupling using a
knife-edge straight-edge and a feeler gauge.
1
Required dimensions:
a=a1 and b=b1, tolerance:
± 0.05 mm
1 knife-edge straight-edge
Aligning the coupling
The pumps are designed for high temperature foot
fastening as standard. Therefore, the pump feet must not
be fixed to the baseplate in order to avoid distortion
caused by high temperatures of the liquid handled and the
resulting expansion of the pump casing.
Stud bolts (1) and adjusting nuts (2) are used for the high
temperature foot fastening. Install adjusting nut (2) and
turn it finger-tight only (do not use a wrench), thus
installing the washer (3) free from play; however, the
washer (3) should still be movable by light hammer taps.
Lock the adjusting nut (2) in its position by tightening the
safety screw (4).
4 1 1 2 3
1 Stud bolt 3 Washer
2 Adjusting nut 4 Safety screw