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Related Manuals for MTH PUMPS T51 Series
Summary of Contents for MTH PUMPS T51 Series
- Page 1 Section T51 Page 501 Dated January 2000 97-4623-01-588 T51 SERIES HORIZONTAL CLOSE COUPLED PUMPS VERTICAL FLANGE MOUNTED CLOSE COUPLED PUMPS FLEXIBLE COUPLED PUMPS MTH PUMPS 401 West Main Street • Plano, IL 60545-1436 Phone: 630-552-4115 • Fax: 630-552-3688...
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Page 2: General Instructions
Page 502 T51 SERIES General Instructions HORIZONTAL CLOSE COUPLED shipping containers are not grams on the assembly. Make PUMPS suitable for outdoor storage. In sure the motor rotation and speed VERTICAL FLANGE MOUNTED some areas, it may be necessary matches that required for the... - Page 3 Page 503 source. It should be the same size By definition, NPSH means: “net tions. Elastomer type couplings are as the pump inlet or sized based positive suction head” above the the best choice to separate motor on reasonable fluid friction losses. vapor pressure of the pumped noises from the fluid and piping A foot valve is recommended when...
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Page 4: Installation
Page 504 T51 SERIES Installation FLEXIBLE COUPLED PUMPS Place the pump so that it can be 2C Leveling (Flexible Coupled easily inspected and serviced Pumps Only, Refer to Figure 2-1) CLOSE COUPLED PUMPS during operation. Sufficient head If the unit is received with the pump room should be provided, particu- A. - Page 5 The standard coupling supplied by 5. Recheck the parallel alignment pipe and strain or distortion will MTH Pumps has an elastomer above. result. member between two internal serrated flanges. They have smooth...
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Page 6: Operation
Page 506 T51 SERIES Operation 2. On a single phase motor, change reconfirming correct rotation. FLEXIBLE COUPLED PUMPS the leads as indicated on the Select starter heaters and wiring for CLOSE COUPLED PUMPS the maximum current the motor can connection box cover. Some A. - Page 7 Page 507 This procedure will flush residue then be filled completely from an practical at lifts over twenty-two from the close fitting impeller outside source. A vent opening will feet. surfaces. If not immediately be necessary during filling to let air The best way to prime a pump and successful, refer to Section 1, 1C escape.
- Page 8 Page 508 T51 SERIES Service PUMP ENDS Exploded views of each unit, 4. Remove the impeller (#11), refer to Figure 4-1. The impeller is a Figures 4-4, 4-5, 4-11, and 4-12, A. Preliminary are provided for referencing the slip fit and, under normal condi- B.
- Page 9 Page 509 8. Remove the rotating element from planned. Note the condition of the place. Striking the sleeve too hard the sleeve. Refer to Figure 4-3. setscrew in the collar and replce if could damage the seat or rotating The element normally adheres necessary.
- Page 10 Page 510 T51 SERIES 4.Service rotating element be used for d. Slide the motor bracket straight parts that show visible wear. If the reassembly. DO NOT attempt off. Do not attempt to remove pump was not producing sufficient to remove the seal using a...
- Page 11 Page 511 carefully inspect for microscopic Check the sleeve or shaft for b. Carefully press the seat, cracks and nicks. Scratches that galling, pitting, and corrosion. If the smooth side up, into the seat might be ignored elsewhere can shaft or sleeve is corroded where cavity of the motor bracket.
- Page 12 Page 512 T51 SERIES 4.Service 3. Install the shaft sleeve and finger, slide the assembly onto the motor bracket for proper rotating element as a unit. the motor shaft. impeller operation. a. Place the sleeve in an upright g. Push the sleeve on until it 4.
- Page 13 Page 513 c. The impeller hub should be Proceed to Section 4G Testing and over the two (2) studs (#18) facing out away from the Final Adjustments. on the motor face. motor bracket. Refer to Figure 4-4 and 4-5. 4F Reassembly (C15 and P15) b.
- Page 14 Page 514 T51 SERIES 4.Service e. Holding the head assembly n. Place a second crescent wrench 1. Reconnect the electrical connec- over the nut and tighten in a between the thumb and index tions referring to the colored or clockwise direction until it is...
- Page 15 Page 515 T51 SERIES Service 1. Soft plastic or wooden mallet. BEARING PEDESTALS will be done to the bearings. 2. Arbor press or vise. 3. 3/4" X 6" piece of water pipe for A. Preliminary If an arbor press is not available, a B.
- Page 16 Page 516 T51 SERIES Service 4. Repeat step 3 for the other 4D Reassembly 3. Install the snap ring (#4) in the bearing. pump end of the pedestal. Be All parts should be visually inspect- sure the snap ring is seated properly in the groove.
- Page 17 Page 517 Figure 4-19 P3 Bearing Pedestal Figure 4-20 P15 Bearing Pedestal P3 & P15 BEARING PEDESTAL NAME/DESCRIPTION PART NO. QTY. Bearing Pedestal Snap Ring/Bearing Retainer Shaft Flinger Key Coupling Ball Bearing/Inboard Ball Bearing/Outboard Coupling Guard/Halves Capscrew...
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Page 18: Troubleshooting
Page 518 T51 SERIES Troubleshooting FLEXIBLE COUPLED PUMPS CLOSE COUPLED PUMPS VERTICAL FLANGE MOUNTED PUMPS 5B Reduced Capacity A. Failure to Pump 9. Excessive wear — If a pump had previously performed satisfactori- B. Reduced Capacity 1. Pump not up to speed — Use a ly and now gives evidence of C. - Page 19 Page 519 3. Insufficient NPSH or too much 2. Insecure mounting — Follow erode the seal faces or plate out suction lift — Relocate pump, instructions in Section 2, 2B on the faces producing an supply tank, or both to improve Foundation.
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Page 20: Parts And Repair Services
Pumps Limited Warranty statement. sales office. purchased. T51 SERIES 7.Limited Warranty MTH Tool Company, Inc. / MTH Pumps, defective after examination by the Com- Product or parts of Products which: (a) hereinafter referred to as “MTH”, war- pany. The defective Product must be...
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