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Section 

E41•T41

 Page 509

Dated 

June 2016

97-4622-01-588

Figure 4-8

Figure 4-7

Figure 4-9

Figure 4-10

  d.  Care must be taken with 

the seats.  They are often a 

brittle material and are prone to 

breakage. 

 It is

 

recommended 

that a new replacement seat 

be installed during reassem-

bly.

4C Disassembly (T41- C15 and 

P15)

The following tools and equipment 

are needed for disassembly of C15 

and P15 units.

1.  Soft plastic or wooden mallet.

2.  9/16” wrench or socket.

3.  Two 10” or larger adjustable 

wrenches.

4.  Penetrating oil.

5.  1” wood dowel (Approx. 6” long).

6.  Thin blade screwdriver.

7.  Two large blade screwdrivers.

8.  Cealube G or similar glycol base 

lubricant. (DO NOT use petroleum 

products.)

To disassemble the pump:

Refer to Figures 4-16 and 4-20 for 

reference to the numbered parts in 

the disassembly below.

1.  Remove all liquid from the pump. 

2.  Remove the four (4) 3/8” X 4” bolts 

(#19) from the cover. (#2)

3.  Remove the cover.  In some 

cases, light 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 cover and motor 

bracket.  Damage to the “O” ring 

(#7) and/or impeller can result.

4.  Remove the impeller (#11), refer 

to Figure 4-7.  The impeller is a 

slip fit and, under normal condi

-

tions, can be removed by gently 

tapping on the end of the shaft 

sleeve with a mallet.  Leave the 

impeller key (#23) in place.  Strik-

ing the sleeve too hard could 

damage the seat or rotating ele-

ment.

5.  Remove the impeller drive hub, 

Refer to Figure 4-8.  Two (2) 

adjustable wrenches are used 

to remove the impeller drive hub 

(#14).

be taken not to damage the hub 

or motor shaft.

6.  Remove 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 reassembled 

and reused.  

It is recommended 

that a new rotating element be 

used for reassembly.

  DO NOT 

attempt to remove the seal using a 

screwdriver or other sharp object.  

Damage to the shaft or element 

can occur.

7.  Remove the motor bracket.  The 

motor bracket will come loose 

once the drive sleeve and rotating 

element have been removed.

8.  Remove the seat portion of the 

seal.  Refer to Figure 4-10.

  a.  Adjust one wrench to fit over 

the sleeve and engage the 

impeller key.  Adjust the second 

wrench to fit the impeller nut 

(#15).

  b.  Holding both wrenches, turn the 

impeller nut counter-clockwise.

  c.  After the impeller nut is re-

moved, the impeller drive hub 

can be removed.

  d.  The hub is keyed and can be 

removed using two large bladed 

screwdrivers.

  e.  Insert the blades of the screw-

drivers between the spring 

holder on the rotating element 

and the shoulder of the hub.

  f.  Holding the screwdrivers at 

approximately 3 o’clock and 

9 o’clock, push the handles in 

toward the motor body, using 

the motor bracket for leverage.  

Refer to Figure 4-9.  This pro-

cedure usually does not require 

excessive force.  Care should 

  a.  Place the motor bracket face 

down on a flat surface.

  b.  Look into the opening in the 

center of the bracket, you will 

see a portion of the seat.

  c.  Insert the 1” dowel, and very 

gently, tap the seat until it drops 

out.  Care must be taken with 

the seats.  They are often a 

brittle material and are prone to 

breakage.  

It is recommended 

that a new replacement seat 

be installed during reassem-

bly.

4D Disassembly D3 (E41)

The following tools and equipment 

are needed for disassembly of E41 

Series Pumps:

1.  Soft plastic or wooden mallet.

2.  Small ball peen hammer.

3.  9/16” wrench or socket

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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