MTH PUMPS T31 Series Manual

Horizontal close coupled, flexible coupled
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Distributed by PumpBiz, Inc.
www.pumpbiz.com
1-800-PumpBiz (786-7249)
T31 SERIES
Pump Manual
HORIZONTAL CLOSE COUPLED
FLEXIBLE COUPLED
Section T31 Page 501
Dated January 2000
97-4621-01-588
MTH PUMPS
401 West Main Street • Plano, IL 60545-1436

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Summary of Contents for MTH PUMPS T31 Series

  • Page 1 Section T31 Page 501 Dated January 2000 97-4621-01-588 Distributed by PumpBiz, Inc. www.pumpbiz.com 1-800-PumpBiz (786-7249) T31 SERIES Pump Manual HORIZONTAL CLOSE COUPLED FLEXIBLE COUPLED MTH PUMPS 401 West Main Street • Plano, IL 60545-1436...
  • Page 2: General Instructions

    Page 502 T31 SERIES General Instructions 1C Placing Stored Pumps Into Service horsepower. This is helpful when a non- CLOSE COUPLED PUMPS Special care must be taken when placing overloading motor is specified. It can be FLEXIBLE COUPLED PUMPS stored pumps into service. First clean the of critical importance if the system flow outside and flush out the inside.
  • Page 3 Page 503 For boiling liquids, P and P drain plugs and drain the lines to and from pump life. Under most circumstances, equal. This item then becomes zero the pump. Carefully blow out the pump regenerative turbine pumps can be made and can be omitted from the equa- with compressed air to clear all internal to self-prime as long as a small amount of...
  • Page 4: Installation

    Page 504 T31 SERIES Installation CLOSE COUPLED PUMPS sufficient mass to absorb all normal a. Place a straightedge FLEXIBLE COUPLED PUMPS vibrations. Locate the foundation along the baseplate to determine if it bolts using a layout or template in is distorted.
  • Page 5 Page 505 sleeve size, loosen the motor or pump 2E2 Piping Support CHART 1 and place thin metal shims under M a x im u m R P M & A llo w a b le the motor or pump feet until the Never allow the pump to support piping.
  • Page 6: Operation

    Page 506 T31 SERIES Operation CLOSE COUPLED PUMPS The pump inlet is located on the end 4. This should “break” the impeller FLEXIBLE COUPLED PUMPS farthest from the motor. The discharge or loose without damage, unless “outlet” can be on the top, side, or bottom foreign material has entered the A.
  • Page 7 Optional self-priming casings are priming chambers with fresh liquid. 5. Slowly close necessary valves or available for MTH pumps allowing priming Most turbine pumps will pump otherwise place the pump into service. when a vacuum pump or foot valve is not twenty-six to twenty-eight inches of practical.
  • Page 8: Maintenance

    Jog the pump to conirm 4D Lubrication Mechanical seals are used in MTH Pumps there is flow from the flushing lines. If there to eliminate the maintenance that is...
  • Page 9 Page 509 1.250 1.047 .625 DIA. BORE SEAL O.D. .547 W.H. Figure 4-3 External Seal Flushing Figure 4-2 Stadard Seal Consrtuction Figure 4-4 Internal Seal Flushing...
  • Page 10 The following tools and equipment are pedestal shaft must be replaced. needed for disassembly of T31 Series 7. Next remove the motor bracket. Surface corrosion must be removed Pumps: so that seals can slide freely during 8.
  • Page 11 Page 511 1. Connect all piping and fill the pump 1. The seal seat (#125) must be installed 4. Compress and hold the seal spring with fluid. in the motor bracket (#1) before the slightly below the snap ring groove and bracket is installed on the motor.
  • Page 12 Page 512 T31 SERIES T31 CLOSE COUPLED PUMP Service " " O " " O t l o r e l i t a o i t t l o r e l Figure 5-2 BEARING PEDESTALS 2. Unbolt the pump from the base An exploded view of the unit, Figure 5-3 is and remove.
  • Page 13 Page 513 2. Arbor press or vise. 2. Place the shaft with either 3. 3/4" X 6" piece of water pipe. bearing resting on top of the jaws 4. Internal snap ring plier. and gently tap on the end of the 5.
  • Page 14: Troubleshooting

    (Final testing is done after the pump to be replaced. 4. Repeat step 3 for the other bearing. end is in place.) T31 SERIES Troubleshooting CLOSE COUPLED PUMPS coupled pumps. Reverse two manner. If there is suspicion of...
  • Page 15 Page 515 6C Reduced Pressure 4. Mechanical damage — ment is the solution if tightening the Turn pump over by hand. After a few through bolts has no effect. 1. Pump not up to speed — days run in period, all models should Use a tachometer to determine turn over by hand with no tight spots.
  • Page 16: Parts And Repair Services

    MTH and return. found in the yellow pages or by contacting are always available insofar as possible MTH Pumps at 401 W. Main St. for immediate shipment. Warranty 7C Warranty Service Plano, IL 60545 service, as well as expert application...

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