Service manual

5
D.1 TOOLS
Procedures described in this manual require common mechanics hand tools, dial indicators for
alignment and suitable lifting devices such as slings, straps, spreader bars, etc.
D.2 LIFTING OF PUMP AND PUMP/DRIVER ASSEMBLIES
All pumps and pump/driver assemblies should be lifted with appropriate devices securely
attached to whole unit. Ensure unit’s center-of-gravity is located between lifting points. See
Figure 1. This will avoid tipping of pump or pump/driver assembly. Spreader bars should be
used as necessary to insure load is properly distributed and lifting straps do not damage
equipment.
Some pumps and pump/driver assemblies have designated lifting points that are shown on their
outline drawings.
DANGER
ATTENTION
Lifting a vertical pump/driver using straps or hooks attached to the pump or pump-
to-driver bracket may be dangerous since the center-of-gravity of the assembly
may be higher than the points of attachment. Take precautions to prevent
slippage of slings and hooks. Always use properly rated lifting devices.
Max 90°
Min 60°
Max 90°
Min 60°
Max 90°
Figure 1 – Lifting Pumps and Pump/Driver Assemblies
D.3 INSTALLATION OF PUMP ASSEMBLY
To insure adequate flow of liquid to pump’s inlet port, place pump near liquid source and
preferably place pump centerline below liquid surface. Use short, straight inlet lines.
A dry, clean, well-lit and well-ventilated site should be selected for installing the pump
assembly.
Sufficient open space should be provided around pump rotor and/or gear housing to permit
routine visual inspection, on-site service and maintenance, and pump replacement. For
installation and servicing of large pump units, ample overhead clearance should be provided to
allow for lifting device maneuvering.
D.4 FOUNDATIONS AND BASEPLATES
Foundations and baseplates must be designed and installed so pump and driver alignment can
be maintained at all times. Be sure baseplates are level and rest on smooth flat surfaces.
Small pumps may be mounted on baseplates or directly to existing floors that meet the criteria
of foundations. Larger pumps and/or drivers must be mounted to baseplates and foundations.
It is recommended that pumps and their drivers be mounted on common baseplates.