Related Manuals for MTH PUMPS T31 Series
Summary of Contents for MTH PUMPS T31 Series
- Page 1 Section T31 Page 501 Dated October 2010 97-4621-01-588 T31 SERIES Pump Manual HORIZONTAL CLOSE COUPLED FLEXIBLE COUPLED...
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Page 2: General Instructions
Page 502 T31 SERIES General Instructions CLOSE COUPLED PUMPS important when optional seal and gasket original expectations. Also, typical FLEXIBLE COUPLED PUMPS materials have been used. Protective material selection charts do not consider caps on the inlet and outlets should also all the temperature, pressure, and fl... -
Page 3: Installation
fl uid in a pump, individual type of pump. vapor pressure of the pumped liquid and consideration should be given to heating, T31 SERIES Installation CLOSE COUPLED PUMPS mended that only experienced, qualifi ed should be resolved by making inlet FLEXIBLE COUPLED PUMPS erecting engineers undertake this task. - Page 4 The standard coupling supplied by Close coupled pumps can be mounted or pump and place thin metal shims MTH Pumps has an elastomer member on a steel base prior to installation or under the motor or pump feet until between two internal serrated fl anges.
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Page 5: Operation
Combination Foot Valve and Areaof strainer 3 to 4 Strainer Times Pipe Area Figure 2-5 T31 SERIES Operation pump. A rotation arrow, refer to Figure G. Priming CLOSE COUPLED PUMPS 3-1, is located on the pump to indicate H. Starting FLEXIBLE COUPLED PUMPS the correct direction of rotation. - Page 6 Once Optional self-priming casings are avail- loosened, this material is quickly dis- able for MTH pumps allowing priming persed and the impellers will fi nd their when a vacuum pump or foot valve is hydraulic center. If these procedures not practical.
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Page 7: Maintenance
Sealed ball bearings are standard boxes. This does not, however, mean clogged, remove and replace them. in all MTH pumps. The maximum they can totally be ignored. Check a Remove the pipe plugs and reconnect continuous operating temperature new installation for seal leakage. - Page 8 Page 508 Spring Holder Spring Drive Ring Seat Seat Retainer "O" Ring Fexible Washer Washer Diaphragm Diaphragm Figure 4-1 1.250 1.047 1.047 .625 DIA. .625 DIA. .625 DIA. .625 DIA. .625 DIA. .625 DIA. BORE SEAL SEAL O.D. .547 W.H. .547 W.H.
- Page 9 The following tools and equipment are rotating element clean if it is to be shaft must be replaced. Surface cor- needed for disassembly of T31 Series reused. rosion must be removed so that seals Pumps: can slide freely during assembly.
- Page 10 Page 510 1. The seal seat (#125) must be 4. Compress and hold the seal spring 1. Connect all piping and fi ll the pump with fl uid. installed in the motor bracket (#1) slightly below the snap ring groove before the bracket is installed on the and install the snap ring (#4).
- Page 11 Page 511 T31 SERIES Service T31 CLOSE COUPLED PUMP NAME/DESCRIPTION PART NO. QTY. Motor Bracket Cover "O" Ring/Casing "O" Ring/Casing "O" Ring/Drain Plug "O" Ring/Drain Plug "O" Ring/Thru Bolt "O" Ring/Thru Bolt Snap Ring Snap Ring Impeller Impeller Seal Rotating Element...
- Page 12 Page 512 When installing or removing bearings from the shaft, the use of an arbor press is strongly recommended. To disassemble the pedestal: Refer to Figure 5-3 for reference to the numbered parts in the procedures Figure 5-6 below. 2. Place the shaft with either bearing resting on top of the jaws 1.
- Page 13 Page 513 If an arbor press is not available, the 2. Look to make sure that the lip seals bearings may be installed on the shaft on the bearings are positioned using the following procedure: properly in their grooves. Correct if necessary.
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Page 14: Troubleshooting
Page 514 T31 SERIES Troubleshooting CLOSE COUPLED PUMPS 2. Excessive suction lift — Hydrostatically test the system to Relocate pump, supply tank, or both insure that there are no leaks. A. Failure to Pump to minimize suction lift. B. Reduced Capacity 3. - Page 15 Page 515 2. Improperly installed seat or rotating time. In this case, run the pump for 6G Mechanical Problems element — a few hours before checking for tight spots. If there is suspicion of dam- 1. Short bearing life — If a seal has recently been replaced, look for a missing “O”...
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Page 16: Parts And Repair Services
7C Warranty Service found in the yellow pages or by contact- stocked at MTH and are always avail- ing MTH Pumps at 401 W. Main St. able insofar as possible for immediate Plano, IL 60545 All requests for warranty claims should shipment.
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