Service manual

16
E. Startup, Operation and Shutdown
CAUTION ATTENTION
Operation conditions, such as speed, liquid viscosity, temperature, inlet pressure,
discharge pressure, filtration, duty cycle, drive type, mounting, etc., are interrelated.
Due to these variable conditions, specific application limits may be different from
pump’s operating and structural limits. Equipment must not be operated without
verifying system’s operating requirements are within pump’s capabilities.
DANGER
Make sure all power equipment is disconnected and locked-out before proceeding.
E.1 ELECTRICAL CONNECTIONS
Verify electrical requirements for driver match electrical supply with respect to voltage, number
of phases and terminal connections. Also, check that driver has been wired to rotate in correct
direction.
E.2 ROTATION
Before connecting couplings, check pump rotation to be sure it matches rotation of driver.
When coupling is connected and shafts are correctly aligned, pump should turn freely by hand.
Rotation direction is indicated by an arrow cast on casing or by an attached plate showing a
rotation direction arrow. See Figure 11.
CAUTION ATTENTION
Operating pump in reverse direction may cause pump damage. Make sure
rotation direction is not confused with inlet or outlet flow direction arrows.
Rotation
Arrow
Outlet
Arrow
Inlet
Arrow
Figure 11 – Rotation Arrow
E.3 HYDROSTATIC TESTING THE SYSTEM
Before any system is hydrostatically tested, pump must be removed or isolated.
CAUTION
ATTENTION
To prevent damage to pump, it is necessary to remove or isolate it from the
system prior to starting hydrostatic testing.