Goulds Pumps VRS - IOM - Manual (Page 24)

START THE PUMP
s
! WARNING
This unit must never be used without proper
installation of the safety guards for rotating parts.
1. Make sure the liquid level is at or above the minimum.
2. Slightly open the discharge valve.
3. Start driver.
$
CAUTION
Immediately observe the discharge gauge after starting
pump. If discharge pressure is not quickly obtained,
stop the driver, check the liquid level and discharge
valve, and attempt to restart.
4. Slowly open the discharge valve.
RUNNING PUMP
GENERAL CONSIDERATIONS
Driver may overload if the pumpage specific gravity
(density) is greater than originally assumed or the rated
flow rate is exceeded.
Always operate the pump at or near the rated conditions to
prevent damage resulting from cavitation or recirculation.
New bearing housing seals may generate some heat until
broken in. Oil should be applied to them if heat becomes
excessive.
OPERATING AT REDUCED
CAPACITY
s
! WARNING
Do NOT operate pump below minimum rated flows or
with the discharge valve closed. These conditions can
quickly lead to pump failure and a possible explosion.
Damage caused by reduced flow operations includes:
1. Increased Vibration Levels - Affects bearings.
2. Increased Radial Thrust - Stresses on shaft and
bearings.
3. Heat Build Up - Vaporization causing rotating parts to
score or seize or possible explosion.
FINAL ALIGNMENT
1. Run the pump under actual conditions for a sufficient
length of time to bring the pump and driver up to
operating temperature.
2. Check the alignment per alignment procedure outlined
earlier.
18
VRS IOM - 5/08