Installation
Ampco Pumps Company
Page 10
Ampco Pumps Company ZP3 Manual M-004 Rev A 10.15
Strainers and Gauges
Strainers and magnetic traps should be used to prevent foreign matter from entering the pump.
It is essential to service strainers and traps regularly to prevent restriction of flow. To
determine the performance of the pump, install pressure and vacuum gauges on the inlet and
discharge piping (Figure 11).
Proper Gauging Shows:
Unusual pressure variations
Indicates flow
Changes in pump performance
Variations in the system
Differences in fluid viscosities
Figure 11: Proper Gauging
Base Alignment
Pump and base assemblies sent directly from Ampco’s factory are aligned prior to shipment.
Assemblies must be checked once they are installed and prior to operation. Misalignment may
cause unnecessary wear and shorten the life of the pump. If couplings are not specified,
Ampco will use a flexible coupling which permits minor compensation for alignment and
endplay.
To check the coupling alignment, start with checking the angular alignment by measuring the
gaps between the couplings on both the pump and motor side (Figure 12, Angular Alignment).
Shim the assembly accordingly so the gap is equal distance at all points. Next, using a
straight edge, check the horizontal and vertical alignment of the coupling. Place the straight
edge along the coupling to ensure that both sides are concentric (Figure 12, Parallel
Alignment).
Figure 12: Check Alignment
Angular Alignment
Parallel Alignment
Straight Edge