50 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
50 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
50 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
Vertical Turbine Pumps
Repairs
Document Name: 2001299-VTP-IOM-EN Page 50 of 67
Revision 3 Copyright © 2014, Weir Floway, Inc. All Rights Reserved. Issue Date: December 12, 2014
• It is recommended that bowl assembly bearings be replaced when pump bowl assembly is
disassembled, and measured diametrical clearance exceeds standard clearance indicated in bowl
repair manual (new bearings) by 0.004 maximum.
• Inspect shaft straightness. Each shaft should be straight to within 0.0005" TIR per foot of shaft length
(for example, 0.005" TIR over a 10ft shaft length).
To measure shaft straightness:
i Support the shaft on two precision rollers, each placed 1/4 of the shaft length in from both shaft
ends.
ii Rigidly mount a dial indicator to contact the shaft.
iii Slowly rotate the shaft on the rollers and record the TIR from the dial indicator.
iv Measure and record TIR readings at 1 ft increments along the shaft length.
If the shaft is not straight, it must be either straightened or replaced with a new shaft.
• Check all enclosed impeller to bowl running clearances. If the clearance exceeds the quantity of (Imp.
Ring OD in inches
12) thousandths of an inch, renewing the clearance should be considered to
achieve optimum pump efficiency. For example, if the impeller wear ring OD is 13 inches, the clearance
should be renewed if the impeller to bowl clearance is greater than 0.025" (13+12 = 25 thousands of an
inch).
8.7 Replacement Parts
Replace parts showing signs of damage, cracks or excessive wear. Use only genuine Floway parts for
replacements.
Order replacement parts as indicated in “Parts” on page 57.
8.8 Lubrication
Lubricate all bearings and impeller skirts with clean grease or oil acceptable for the application. Thoroughly
clean all threaded connections and flanges and coat with thread lubricant, oil, or pipe joint compound.
DANGER
GENUINE OEM PARTS
• Genuine OEM parts and accessories are designed, tested and incorporated into the
products to help ensure they maintain continued product quality and performance in use.
•As Trillium Pumps USA does not test the parts and accessories sourced from other
vendors, the installation of such parts and accessories may adversely affect the
performance and safety features of the products.
• The failure to properly select, install or use authorized parts and accessories is
considered misuse. Damage or failure caused by misuse is not covered by our warranty.
• In addition, any modification of Trillium Pumps USA products or removal of original
components may impair the safety of these products in their use.
CAUTION
INSPECT PARTS
When repairing a pump which has been in service, it is important to inspect the physical
condition or strength of all parts such as fasteners, bowls, threads, pressure casings, etc.,
to ensure all parts that will be reused are in good condition and fit to perform in the specific
application.
Repack the suction bearing as outlined in Pump Bowl Instruction Manual.
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