36 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
36 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
36 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
Vertical Turbine Pumps
Commissioning and Operation
Document Name: 2001299-VTP-IOM-EN Page 36 of 67
Revision 3 Copyright © 2014, Weir Floway, Inc. All Rights Reserved. Issue Date: December 12, 2014
6.2 Initial Start-up
1. If the discharge line has a valve in it, it should be partially open for initial starting.
2. Start the lubrication liquid flow on enclosed lineshaft units.
3. Start the pump and observe for excess noise, vibration or any other difficulty. If any malfunctions occur,
stop the pump immediately and refer to “Troubleshooting” on page 55 for probable cause.
4. Ensure all air and gases are properly vented from the pump and system.
5. Open the discharge valve as desired.
6. Check the complete pump and driver for leaks, loose connections or improper operation.
7. If possible, leave the pump running for approximately half an hour on the initial start-up; this will allow
the bearings, packing or seals, and other parts to “run-in” and reduce the possibility of trouble on future
start-ups.
6.3 Packing Box Adjustment
• It is important that the packing is not tightened too much on initial start-up to prevent overheating and
damage.
• New packing must be “run in” properly to prevent damage to the shaft and shortening of the packing life.
Refer to “Start-up with New Packing” on page 41 for further information.
• The packing box must be allowed to leak for proper operation. The appropriate quantity of leakage can
be determined by checking the temperature of the leakage. The temperature must be cool or lukewarm,
not hot. Leakage of 40 to 60 drops per minute is adequate.
• When adjusting the packing gland, bring both the nuts down evenly and gradually until the leakage is
reduced to the required quantity. Tighten the nuts only about half a turn at a time, at 20 to 30 minute
intervals to allow the packing to “run-in”.
• Under proper operation a set of packing will last a long time. Occasionally a new ring of packing will
need to be added to keep the box full. After adding two or three rings of packing, or when proper
adjustment cannot be achieved, the packing box should be cleaned completely of all old packing and
repacked.
WARNING
PERSONNEL INJURY
Personnel injury or illness may result from contact with rotating parts, seal leakage or spray
from the rotating shaft.
CAUTION
EQUIPMENT DAMAGE DUE TO PUMP BLOCKAGE
The standard unit is not designed to pump large amounts of abrasives or debris. If any
unexpected debris or abrasives are present in the discharge liquid and the pumpage does
not clear up, immediately shut down the unit and eliminate the source of abrasives and
debris.
WARNING
RISK OF ENTRAPMENT
During gland adjustment, the guard needs to be removed. When the guard is removed, the
rotating shaft is exposed and may cause entrapment. Hence, only qualified personnel must
work on gland adjustment.
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