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Section 

E41•T41

 Page 514

Dated 

June 2016

97-4622-01-588

C15 VERTICAL

FLANGE MOUNT PUMP

Figure 4-20  

125

12

14

11

15

23

60

19

2

7

1

23A

C15

4.

Service

E41•T41 SERIES

T41 BEARING PEDESTALS

A.

 Preliminary

B.

 Disassembly

C.

 Inspection of Components

D.

 Reassembly

E.

 Testing and Final Adjustments

4A Preliminary (P3 and P15)

1.  Disconnect the inlet and outlet 

piping before unbolting the pump.  

If the pipes are corroded, use pen-

etrating oil on the threads to aid in 

removal.

2.  Unbolt the pump from the base 

and remove.  Disassembly instruc-

tions for the pump are found in 

section 4, T41 PUMP ENDS.  All 

work on the unit should be per-

formed on an elevated work-bench 

whenever possible.

The disassembly and reassembly 

procedures are broken into two sec-

tions covering the following units:

4B —  Disassembly of the P3 and 

P15 Bearing Pedestals

4D —  Reassembly of the P3 and 

P15 Bearing Pedestals

Exploded views of each unit, Figures 

4-24 and 4-25  are provided for refer-

encing the numbers in the following 

procedures, i.e. flinger (#21).

4B Disassembly (P3 and P15)

The following tools and equipment 

are needed for disassembly of the P3 

and P15 units:

1. Soft plastic or wooden mallet.

2. Arbor press or vise.

3. 3/4” X 6” piece of water pipe for 

P3, 1-1/4” X 6” for P15.

4. Internal snap ring plier.

5. Penetrating oil.

When installing or removing bearings 

from the shaft, the use of an arbor 

press is strongly recommended.

To disassemble the pedestal:

Refer to Figures 4-19 and 4-20 for 

reference to the numbered parts in 

the procedures below.

NAME/DESCRIPTION

PART 

NO.

QTY.

Motor Bracket

1

1

Cover/Vertical

2

1

“O” Ring/Casing

7

1

Impeller

11

1

Seal Rotating Element

12

1

Seal Stationary Seat

125

1

Drive Sleeve/Impeller Driver

14

1

Impeller Nut

15

1

ThruBolt

19

4

Nut

20

2

Key/Impeller Drive

23

1

Key/Sleeve Drive

23A

1

Gasket

60

1

4I Testing and Final Adjustment

The pump is now ready for 

installation. 

Final adjustments will be made with 

the pump in operation.

1.  Reconnect the electrical 

connections referring to the 

colored or numbered tape used to 

mark the wires.

2.  Connect all piping and fill the 

pump with fluid .

3.  Make sure all valves are open, 

and fluid will flow through the 

system.

4.  Start the pump.

5.  Check for leaks on pump and 

piping.  Special attention should 

be given to the seal area at the 

rear opening in the motor bracket.

6.  Under pressure, the impeller will 

find its “hydraulic” balance.

7.  Using an amprobe or similar 

device, check for motor overload.

8.  While the impeller is finding its 

balanced position, it is common 

to experience some variance in 

readings.  After a run-in period the 

readings should level off.

This completes the adjustment and 

testing phase.  The pump is ready for 

service. 

Содержание E41 Series

Страница 1: ...HORIZONTAL CLOSE COUPLED VERTICAL FLANGE MOUNTED FLEXIBLE COUPLED Distributed in the UK by Pump Engineering Limited Unit B1 Riverside Industrial Estate Littlehampton West Sussex BN17 5DF United Kingdo...

Страница 2: ...ump and motor A vise grip or other plier type gripping device may be used directly on the shaft Apply ing torque to the motor fan blades is not recommended If the impeller does not break loose immedia...

Страница 3: ...quid and loss of performance will result as the liquid vaporizes Ps Pressure in the suction vessel in PSIA Pvp Vapor pressure of the pumped fluid in PSIA Hs Static height of the pumped fluid above or...

Страница 4: ...not properly primed and purged of air A dry easily accessible location is also important Allow ample clear ance around the unit for free air circulation If a dry location is not available the pump ca...

Страница 5: ...r to Figure 2 4 1 Place a straightedge across the two coupling flanges 2 Measure the maximum offset A Figure 2 4 at various points around the periphery of the cou pling DO NOT rotate the coupling 3 If...

Страница 6: ...spatter and other material found in new piping systems will bend the impeller vanes and can sometimes lock up the pump If a new pump does not oper ate properly the first thing to check for is damage...

Страница 7: ...t tapping with a plastic or wooden mallet on the outside diameter of the cover may be required to loosen it from the motor bracket Care should be taken if a screwdriver is needed to pry between the co...

Страница 8: ...odels have used a threaded shaft and differ ent procedures are required in these cases 8 Remove the rotating element from the sleeve Refer to Fig ure 4 3 The element normally adheres tightly to the sl...

Страница 9: ...the rotating element from the shaft The element normally adheres tightly to the motor shaft and some force may be necessary to remove it This is common and if care is taken the element can be reassemb...

Страница 10: ...mum the impel ler should be replaced in this case If the total side running clearance for an impeller exceeds 007 it is unlikely that pump performance will reach that of a new pump except at lower dis...

Страница 11: ...ly between the thumb and index finger of both hands refer to Figure 4 13 slide the assembly over the sleeve until the spring holder rests against the shoul der of the sleeve e The element must slide f...

Страница 12: ...seat 125 must be installed in the motor bracket before the bracket is installed on the motor To install the seat a Place the motor bracket face up on a flat surface b To make the installation of the...

Страница 13: ...lation c Carefully press the seat smooth side up into the seat cavity of the motor bracket Thumb pressure is usually sufficient to install the seat 2 Install the motor bracket This is best done with t...

Страница 14: ...P15 4 Internal snap ring plier 5 Penetrating oil When installing or removing bearings from the shaft the use of an arbor press is strongly recommended To disassemble the pedestal Refer to Figures 4 19...

Страница 15: ...per installation and to prevent bearing damage The bearings must seat against the shoulder for 1 Remove the flinger 21 located on the pump end of the bearing pedestal 3 2 Using a snap ring plier remov...

Страница 16: ...ly turns freely Turn the shaft by hand If it is tight or rough spots are encountered it is likely that at least one of the bearings was damaged during disassem bly assembly operations and will have to...

Страница 17: ...ion line Fill the system with fluid and hydrostatically test Tighten connections or replace leaky com ponents 6 Air pockets in the suction pip ing Operating the system at maximum flow conditions will...

Страница 18: ...Pump dried out and close clearance areas rusted Follow installation instruc tions for loosening the pump Foreign material in pump Flush out Disassemble if flushing is not successful 3 Pump leaks Seal...

Страница 19: ...or their safe removal storage and return 6C Warranty Service All requests for warranty claims should be made through the com pany from which the pump was purchased or supplied Complete details on what...

Страница 20: ...owed F O B the MTH factory at Plano Illinois USA MTH may in its sole discretion deny any warranty claim if shipping damage any attempted disassembly or any other action outside of MTH s control impair...

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