MTH PUMPS E51 SERIES Скачать руководство пользователя

Страница: 15 / 20

Section

T51 • E51

Page 515

Dated

February 2014

1. The seal seat (#125) must be

installed in the motor bracket (#1)

before the bracket is installed on

the motor. To install the seat:

a. Place the motor bracket face up

on a flat surface.

b. Apply a coating of compatible

lubricant to the elastomer

portion of the seat to aid with

installation.

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 the motor standing

on end. Make sure that both the

face of the motor and the feet of

the motor bracket are clean. Slide

the motor bracket over the shaft

onto the motor.

3. Install the rotating element (#12).

Lubricate I.D. of the rotating

element. Place the rotating

element on the shaft with the

carbon end towards the seat.

Place the spring over the shaft,

with the backing plate up and

compress the spring to locate the

rotating element against the seat.

If this fails to seat the rotating

element gently push the rotating

element down with a thin blade

screwdriver being careful not to

damage the seat or the rotating

element.

4. Compress and hold the seal

spring slightly below the snap ring

groove and install the snap ring

(#4). Make sure the snap ring is

locked in the groove.

5. Install the impeller key (#23) into

the shaft keyway.

6. The impeller is a slip fit and

should slide on firmly but easily

until it stops against the impeller

wearing surface. Force should

not be required or used to install

the impeller in the correct position.

The impeller hub should be facing

out away from the motor bracket.

Refer to Figures 4-4 and 4-5.

7. Next, rotate the impeller by hand,

the impeller should move freely.

8. Place the large “O” ring (#7) into

the outside “O” ring groove in the

motor bracket.

9. Place the cover over the motor

bracket and install the two (2) nuts

(#20) and the two (2) 3/8”x4” bolts.

Tighten the bolts systematically,

alternating diagonally across the

cover. Do not over-tighten the

bolts. Final adjustment will be

made after the unit is in operation.

4I Testing and Final Adjustment

The pump is now ready for installa-

tion. Final adjustments will be made

with the pump in operation.

1. Reconnect the electrical connec-

tions referring to the colored or

numbered tape used to mark the

wires during disassembly.

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 and make the final

adjustments to the 3/8” nuts and

bolts holding the cover on. These

nuts and bolts must be torqued to

20 ft. lbs. to obtain proper perfor-

mance.

5. Check for leaks on pump and pip-

ing. 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 de-

vice, check for motor overload.

8. While the impeller is seating, it is

common to experience some vari-

ance 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 E51 SERIES

Страница 1: ...ction T51 E51 Page 501 Dated February 2014 97 4623 01 588 T51 E51 SERIES Pump Manual Distributed in the UK by Pump Engineering Limited Unit B1 Riverside Industrial Estate Littlehampton West Sussex BN17 5DF United Kingdom Tel 01903 730900 Fax 01903 730234 email sales pumpeng co uk Web www pumpeng co uk ...

Страница 2: ...ose coupled units access to the shaft is between the pump 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 immediately fill the pump with a process compatible fluid and try again in a few hours If this fails loosen only the pump cov er thru bolts clamping the ...

Страница 3: ... as possible when the pump is started This will reduce the start up load on the pump and motor Never start the pump with the discharge valve closed The inlet valving should be open when starting any pumping system Without some fluid in the pump it can gall and lock up impellers Violent pump failure will result from contin ued operation with the inlet valve closed 1D4 Priming Regardless of whether ...

Страница 4: ... properly aligned The foundation must be a perma nent rigid installation of concrete or other material of sufficient mass to absorb all normal vibrations Locate the foundation bolts using a layout or template in relation to the suction and discharge piping If concrete is being used foundation bolts of the specified size can be enclosed in a pipe sleeve two to three diameters larger than the bolts ...

Страница 5: ... the lines are ended at the pump particularly if the last piece is cut a little too short or long the pump will be forced to meet the pipe and strain or distortion will result 2E2 Piping Support Never allow the pump to support piping Other means such as pipe hangers and pipe supports should be used to carry piping to avoid misalignment and distortion Consid eration should be given to thermally ind...

Страница 6: ...he pump If a new pump does not oper ate properly the first thing to check for is damage from foreign material 3D Electrical It is important to be aware of and fol low the appropriate local and national electrical codes Do not make wiring alterations that can affect motor rotation without reconfirming correct rotation Select starter heaters and wiring for the maximum current the motor can use at fu...

Страница 7: ... valve necessary to maintain a vacuum in the suc tion line as surging occurs in the pump 2 An air eliminator used on the discharge side of the pump to separate air from liquid so the liquid can be used again as air is carried through the pump 3 A recirculating line carries liquid from the air eliminator to the suc tion 4 A fluid chamber used on the inlet side to provide a supply of fluid to speed ...

Страница 8: ...to Figures 4 4 and 4 5 for refer ence to the numbered parts in the procedures below 1 Remove all liquid from the pump Air blown through the pump will remove the water quickly 2 Remove the two 2 nuts 20 and the two 2 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 ...

Страница 9: ...s 4 11 and 4 12 for reference to the numbered parts in the disassembly below 1 Remove all liquid from the pump 2 Remove the two 2 3 8 nuts 20 and the two 2 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 n...

Страница 10: ... 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 Before the motor bracket 1 can be removed the four 4 O rings 8 located on the upper left and right studs must be removed a Gently tap on the back of the motor bracket alternating between the left and right side unt...

Страница 11: ...t 125 Refer to Figure 4 12 Place the motor bracket face down on a clean flat surface Look into the opening in the center of the motor bracket and you will see a portion of the seat Insert the 1 dowel and very gently tap the seat until it drops out Care must be taken with the seat It is often a brittle material and is prone to breakage It is recommended that a new replacement seat be installed duri...

Страница 12: ...ts should be visually inspected and cleaned or replaced as outlined in 4D above 1 The seal seat 125 must be in stalled in the motor bracket before the bracket is installed on the mo tor To install the seat a Place the motor bracket face up on a flat surface b Carefully press the seat smooth side up into the seat cavity of the motor bracket To make the installation of the seat easier apply a thin c...

Страница 13: ...impel ler wearing surface Force should not be required to install the impeller in the correct posi tion c The impeller hub should be facing out away from the motor bracket Refer to Figure 4 4 and 4 5 d If the impeller does not fit repeat steps a and b to deter mine the problem 5 Place O ring 7 into the O ring groove in the motor bracket It is helpful to stand the motor and pump assembly on end for...

Страница 14: ...placed as outlined in 4E above 1 The stationary 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 seat easier apply a thin coating of compatible lubricant to the elastomer portion of the seat prior to installation c Carefully press the seat smooth sid...

Страница 15: ...mpeller wearing surface Force should not be required or used to install the impeller in the correct position The impeller hub should be facing out away from the motor bracket Refer to Figures 4 4 and 4 5 7 Next rotate the impeller by hand the impeller should move freely 8 Place the large O ring 7 into the outside O ring groove in the motor bracket 9 Place the cover over the motor bracket and insta...

Страница 16: ...ion 4 T51 PUMP ENDS All work on the unit should be per formed on an elevated workbench 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 19 and 4 20 are provided for refer encing the numbers i...

Страница 17: ...t using the following procedure This procedure is not recommended and should only be used in an emer gency situation 1 Stand a piece of 3 4 pipe for P3 or a 1 1 4 piece of pipe for P15 with the threads cut off on a work bench or similar flat surface with the bearing placed on the correct shaft end 2 Insert the shaft into the pipe so the bearing is between the pipe and the shoulder of the shaft Ref...

Страница 18: ...system with fluid and hydrostatically test Tighten connections or replace leaky components 2 Air entering pump through inlet seal or O rings Hydrostatically test the pump and look for leaks Replace faulty seals or O rings 3 Insufficient NPSH or too much suc tion lift Relocate pump supply tank or both to improve inlet con ditions Increase suction pressure Reduce fluid temperature Select a pump with...

Страница 19: ...t If a seal has recently been replaced look for a missing O ring cup around the seat or a seat that was installed cocked or backwards The smooth surface should face the rotating element The rotating element may be in backward or improperly posi tioned Refer to the appropriate seal diagrams and instructions to confirm the correct seal orientation Rotating elements sometimes stick in the wrong posit...

Страница 20: ...thout an RGA will be refused at the dock Products authorized for return must be properly packaged to prevent further damage clearly marked with the Return Goods Authorization RGA number provided by MTH and shipped freight prepaid and allowed 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 a...

Результаты поиска

Содержание E51 SERIES

Отзывы:

Похожие инструкции для E51 SERIES

Бренды по названию

Популярные бренды

MTH PUMPS E51 SERIES, Руководство пользователя

Результаты поиска

Содержание E51 SERIES

Отзывы:

Похожие инструкции для E51 SERIES

Бренды по названию

Популярные бренды