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General installation, operation and maintenance instructionsEccentric Screw PumpsIndustrial Type | Sanitary Type

Pump manual Eccentric Screw Pumps 3

General installation, operation and maintenance instructions

After-sales service

Technical Service

Customer:

Pump:

Appendix:

Rev.: 15

For any question please contact the responsible of the after-sales service in our offices.

Parts list and sectional drawing 1instructions for PumP assembly and disassembly 2general arrangement drawing

mech. seal drawing

test rePorts

material certificates

In order to speed up the technical assistance, reparation, predictive and preventi-ve maintenance of your equipment go to our specialized service centre:

Arturo Pinto Servicios S.R.L., Bolivia 1369, (1824) Lanús Oeste, Buenos AiresTel./Fax: 0054-11-42404162 / 0054-11-42256874e-mail: [email protected]. Gregores 714, (9015) Pico Truncado, Santa CruzTel./Fax: 0054-297-4999577e-mail: [email protected]

Any question of this kind can be asked directly to them or to us, your question will be pleased received and rapidly answered.

MODEL SERIAL CARDAN JOINT

Certificates

Tüv ISO 9001:2008Tüv ISO 14001:2004LRQA ISO 9001:2000GOST R ISO 9001:2001


Indice

1 General remarks 6

2 Your pump 7

3 Reception and storage 11

4 Installation 13

5 Starting up 16

6 Cross sectional drawing and parts list 19

7 Maintenance 23

8 Troubleshooting 30

9 Warranty 31



Manual of the Bornemann eccentric screw pumps

This manual includes the general operation and maintenance conditions of

Bombas Bornemann eccentric screw pumps. Any information that is not specific

stated in this manual can be required to our after sales department.

This manual cannot cover all the situations in relation with the operation, ad-

justment, inspection, testing and maintenance of the provided equipment. We

try to provide all the design and engineering information in a precise and clear

way.

In cases where the Bornemann pump is integrated as a component part of other

equipment or machinery, this manual must be supplemented with the specific

instructions for this equipment, in order to achieve its proper operation within

the plant process.

Bombas Bornemann S.R.L. reserves the right to modify the information con-

tained in this manual, without obligation to notifying, and its contents do not

represent a commitment for the company.

This manual, should be read

thoroughly prior to pump installation,

operation or maintenance.

We recommend it to be handled to the staff that will

perform these tasks.

1.1. Safety Bombas Bornemann developed this manual, assuming that the maintenance and operation staff assigned to the equipment has the enough technical knowl-edge and experience to use it within the operation practices and security levels required by current law and company internal rules.

Along this manual, some paragraphs will be marked with signs referred to safety warnings. Depending on the sign, non observance of what is stated in the para-graph may have as consequence:

Risk of injury to persons.

Risk of electrical shock (Electric voltage).

Risk of damage to equipment and installation.

Environmental risk.

1 General remarks



2 Your pump 2.1. Principle of operationEccentric screw (or progressive cavity) pumps are volumetric displacement. This means that the flow decrease is small, and sometimes even negligible, when the differential pressure increases. The discharge pressure will be imposed by the downstream system and not by the pump itself.

These pumps are rotary, assuring a continuous flow pattern, unlike reciprocating pumps, where the flow is alternating. Dampeners are not needed. These pumps have excellent both suction and impelling capabilities. The pumping elements consist of a polished steel helical rotor that rotates inside a rubber (elastomer) stator, which is vulcanized inside a steel tube.

The screw has an eccentric rotation, and the fluid moves in the longitudinal axis. Because of its particular geometry, when the screw rotates inside the stator, it forms a series of cavities that are sealed between each other. When each cav-ity progresses from the suction to the discharge side, a new one is created on the suction. This process is repeated continuously, providing a regular and soft pumping.

2.2. The pump in the systemFrom the above mentioned, the pumps have to operate under the following in-stallation conditions:

• All upstream valves must be open and there must not be any blocking. If this line is closed, the pump generates a remarkable vacuum, producing a gase-ous phase detachment with implosion noises in the discharge or eventual air suction through the shaft seal. Both phenomenon produce dry running with the danger of erosion of the rubber.

• All downstream valves must be open and outlet line unblocked. If it is com-pletely closed, the pump can achieve a remarkable pressure, producing dam-ages on the pump internals, on the installation or on the electric motor. To avoid this, it should be installed a protection system, mechanical or electrical, such as safety relief valves, pressure switches, etc.

• The suction pipe must be completely flooded. Although the pump has good suction capability, it must not work without liquid, because it lubricates and evacuates the pumping heat.

Thank you

for trusting

our equipment

2 Your pump 2.3. Design characteristicsBornemann screw pumps are designed to handle an extraordinary quantity and type of liquids: abrasive, high viscosity, foods, delicate, with fibers, particle laden. Also it is possible to pump liquids containing air or gas, and foams.

The design of Bornemann pumps reduces the rotor diameter and increases the size of the chamber in order to create a very low slipping velocity between rotor and stator. As a result this causes a soft handling of the pumped fluid, reducing dynamic loads, wear and prolonging the life of cardan joints.

Your pump covers a great application range in regard to flow, pressure, viscosity and type of fluid.

2.4. Rotation and flow directionIn the horizontal standard version, the pump sucks through the radial connec-tion in the casing and discharges through its axial end. For this flow direction it must rotate counter clockwise, view from the motor end.

In principle, the flow direction in horizontal pumps can be inverted by simply reversing the rotation direction. In these cases you must be careful with the pres-sure, the mechanical seal, and other constructive characteristics. Please consult the technical sales department before reversing the direction of rotation.

vertical pumps (e.g.: EU, ET) discharge through the upper connection, located in the pump casing. They only rotate in clockwise, view from the motor end.

Pumps with flexible shaft, where the pump type is identified with the letter F (e.g.: EDFS, EDFSC) must only rotate in the indicated direction.

2.5. Denomination and identificationEach pump is properly identified with a serial and a model number at the refer-ence plate of your pump.



2 Your pump For each particular application exists a material and construction combination, that can be traced by means of this serial number.

The type key is explained as below:

E 2 H 1500 .4 /Ca b c d e f

a. Functional principle E Eccentric pump

b. Pressure stages 1 One stage (until 6 bar). Indication “1” is omitted. 2 Two stages (until 12 bar) 4 Four stages (until 24 bar) P High pressure (until 24/32/40/48/64/80 bar)

c. Constructive design H Horizontal industrial S Sanitary R Horizontal with hopper and endless overfeeding L Compact monoblock U vertical F With flexible shaft, ultra sanitary. D Direct Drive, compact monoblock C With CIP port T vertical drum, sanitary

d. Basic size

e. Fraction of capacity from the basic size

f. Cardan joint size

For proper maintenance read this manual carefully.

For any enquiry do not hesitate to contact to our

technical support Tel: 0054 - 11 - 47568008

or at [email protected]

2.6. Design limitsOperating conditions determined when purchasing your pump, like velocity, fluid viscosity, suction and discharge pressure, temperature, assembly, type of motor, etc. they have an important relation among each other.

All operating conditions should be informed during the original dimensioning of the pump before the purchase, and the equipment should not be used before verifying this working conditions

Please consult our technical department when any change in operating condi-tions, or construction features is required.

Under no circumstances the following parameters should be exceeded:

Maximum Up 1000000 cSt, depending on speed and suction pressure Viscosity

Maximum 6 bar for one stage pumpsPressure 12 bar for two stage pumps 24 bar for four stage pumps 24, 32, 40, 48, 64 o 80 according to EP pump type

2.7. Pump driverDue to the need of a low rotational speed, most of eccentric screw pumps are provided with a gear box reducer. Look for its lube recommendations and special instructions into the package.

The eccentric pump has a quite high starting torque. This feature must be care-fully taken into account when the electric motor is not direct on line started (DOL).

In case you have to use a reduced voltage method of starting like star delta, auto-transformer, soft starter, variable frequency drive, etc., ask our vendor the re-quired torque.

2 Your pump



3.1. InspectionWhen the equipment is received, it must be verified for possible damages caused during shipping.

The packing must be opened very carefully to avoid damages to the equipment. Remove all blocking elements of the equipment and verify the existence of spare parts or loose parts delivered together with it. visually inspect the equipment or any spare part for damages. Any damage on the equipment or the packing must be informed immediately to Bombas Bornemann.

3.2. StorageThe Bornemann pumps are supplied from the factory ready for installation and commissioning. If a storage period is required before commissioning, the pump must be stored in the original package, in a dry clean place, under normal ambient temperature. The suction and discharge flanges must be covered.

The pump must be prepared for storage as follows:

• The packing and the pump must be covered to protect against splash, dust, pollution, etc.

• Wet or spray all parts of the shaft and other parts that are not coated with paint with a suitable lubricant. Do not grease non metallic parts.

• Pumps with shaft packing: remove the packing rings and the gland without scratching the shaft. Coat the shaft and the stuffing box with suitable grease. Before start up, reassemble according the procedure in chapter 6.

• Pumps with mechanical seal: this must not be removed. Cover the ex-terior part of mechanical seal to protect it from dust, filth, slag and any other particles or contaminated elements.

• Uncover all protections at the suction and discharge, wet (or spray) the internals with a suitable lubricant. Cover back again the connections again. (This applies if the pump is not made in stainless steel material).

• Use an appropriate and approved lubricant on pumps for food applica-

3 Reception and storage

tions. In pumps with EPDM rubber, special synthetic grease should be used.

• See table of recommended lubricants 7.4

3.3. Long term storageThe following procedures should be added to the previously described, for long term storage (more than 6 months).

• Protect completely the pump with a plastic cover to avoid the air inter-change. Put inside a moisture inhibitor (e.g. silica bags).

• If the original package is in bad condition provide a new one.

• Check monthly the pump for any sign of damage or exposure. Then turn manually the pump shaft (in the correct direction) in order to prevent the screw from being stuck to the stator. (You can be helped by an ad-equate tool, do not scratch the shaft). You can also remove the stator and store it separately.

• verify the stator and look for any sign of dryness or damage. Replace it if necessary.

3.4. Previous cleaningBefore pumping your product, it is recommended to do a previous cleaning in order to eliminate dust or impurities that have been deposited during shipping, delivery or storage. Repeat this at each stator replacement.

3 Reception and storage

14 Manual de operación Bomba a tornillo excéntrico - Línea Industrial


4.1. Foundations and position

The foundations and bases must assure the alignment of the pump and they must be designed to absorb the static and dynamic loads that it generates. The support surface should be flat and leveled with a maximum horizontal de-viation of 1cm for each 3m.

Note: Most of the eccentric screw pumps can admit higher deviations even work in other position than horizontal, but it is sometimes limited by the driver re-quirements. In case of existing these kind of deviations please contact Bombas Bornemann.

4.2. Suction pipe The intake pipe should be as short as possible and pump located as close as pos-sible to the feed tank. We recommend using a suction pipe diameter equal to or greater than the pump nozzle.

This pipe must be free of leaks to prevent entry of air under vaccum (negative inlet pressure) conditions and loss of liquid during stand by.

When the fluid level is below the centerline of the pump, the emptying of the intake pipe must be avoided, in order to prevent dry running on next start up. It is recommended to position pump and piping with an arrangement in which liquid always gets trapped. Another option is to install a check valve (e.g. foot valve).

A vent plug (or valve) should be installed in the highest point of the line, for the priming of the pump.

4.3. Hydrostatic test of the pipingBefore hydrostatic test of pipe spools connected to the pump:The best practice is to remove the pump, or isolate it from the rest of the system to prevent it from being damaged;

If this is not possible, do not exceed the design pressure for suction and dis-charge. Note that the suction normally can not withstand high pressures. Any queries contact Bombas Bornemann.

4 Installation

4 Installation 4.4. Design and connections of the pipeworkExcessive loads caused by expansion, contraction or misalignment of pipes should be prevented from being transmitted to the pump. So the piping should be flexible enough and independently supported. Otherwise, these loads can originate a malfunction, with consequent damages.

In order to help stator overhaul, it is recommended to install on the discharge line, a removable spool connected to the pump axial nozzle. This supplement should be easily removed and its length should be al least the half of stator.

4.5. Instrumentation and protective devicesAmong the useful instrumentation and electrical devices to protect the pump are found:

• For monitoring pump operating pressures, fit pressure gauges in suction and discharge lines as close as possible to the pump.

• To avoid dry running, install a flow switch in suction or discharge, close to the pump. With the same aim, a level switch can be fitted to the source tank, provided this tank is located near the pump and there is no risk of line blocking.

• To avoid dry running or lack of supply in the suction, it is also possible to use a pressure switch. However its calibration must be very fine and it may not protect properly when there are changes on fluid compositions, viscosity or temperature.

• To avoid high pressures, install a pressure switch in discharge line, close to the pump port.

• To achieve an additional prevention against high outlet pressure; the triggering of the electric motor protection (e.g. thermal relay) can be set as close as possible to normal operation parameters. Consider maximum operating pressure, viscosity and speed values.



4.6. Relief or safety valve (PSV)The installation of this valve is a very recommendable mechanic protection to avoid damages due to high discharge pressure.

The valve must be located on discharge line before any other valve, as close as possible to the pump nozzle.

The set pressure should be 10 to 15% above the operating pressure (but not less than 1.5 bar above the operating pressure).

To avoid fluid overheating during prolonged openings, its outlet should be piped to the supply tank or to a far point from suction.

4.7. Applications for high and low temperaturesAvoid liquid freezing inside the pump. If liquid freezes or stops flowing at certain temperatures:

• Install a system to heat the fluid, e.g. electric tracing, heat strips, steam, etc. Ask Bornemann for special pump casing with heating jacket.

• Clean and empty the pump at the moment of stop.

The maximum allowable temperature for the NBR rubber is 90°C. Ask your sales person for alternative materials for stator in case of working at higher tempera-tures.

4.8. Leakage and drainage collectionIn order to avoid pollution and spills in the pump station, it should be provided collection and/or piping devices for usual leakage from gland packing or me-chanical seals, from auxiliary connections or even from pump process nozzles during maintenance tasks.

4 Installation

5 Starting up The following steps must be verified for the start up:

5.1. CleaningTo avoid premature wear or damage at the inner parts, before connecting pump to the system, all suction piping must be internally cleaned from debris, e.g. bolts or welding slag that can accumulate during fabrication.

5.2. Alignment(Not applicable for pumps with direct coupling, compact or monoblock)

• After being completely mounted on site installation, all pumps must be aligned before the start up, because factory alignment can be disturbed during shipping, handling or connection.

• The equipment alignment should be monitored, and eventually correct-ed, with a regular frequency, not longer than every six months.

• Proper alignment prolongs lifetime. If it is deficient, the pump and the gear motor will suffer severe loads on its bearings and internals. High vibrations and noise are indicators of a misalignment.

• Before the alignment, the pump should be connected to the piping, properly placed and firmly tightened to the base plate without register-ing any bending.

• It is necessary check alignment once the system has reached the normal operating temperature.

• The coupling halves should be mounted by soft axial push, previously, the shafts should be coated with anti-seize paste. Do not hammer to position the coupling, bearings can be damaged. verify if set screws are properly tightened.

• Alignment can be performed by the help of a ruler, a dial indicator or another appropriate device and a set of shims.



• The distance between the faces of the coupling halves should be as specified by the coupling manufacturer (inquire to Bombas Bornemann about this value).

• The maximum recommended deviation is 0.10mm; both for angular and radial misalignment, in a complete shaft turn (360°). For some couplings, the tolerance recommended by its manufacturer may be lower than this value; in this case it will prevail over the previously stated.

Precaution: Do not operate the pump without installing the protective covers or guards for coupling, pulleys and belts, etc.

5.3. FillingBefore start up, inlet piping and pump casing must be filled with the pumped fluid or with water. Allow the air to escape through any near connection placed as high as possible, in order to secure that the pump is completely filled with liquid.

After the filling, if the pump has remained stop for a long time, give a turn to its shaft by hand, with the help of some tool without scratching the shaft.

5.4. Pumps with shaft packingThe shaft packing does not eliminate totally the leakage of the fluid through the pump shaft. Drainage of 1 to 10 drops per minute is considered normal. This leakage is necessary to reduce the friction and the overheating of the shaft.

Before starting up, loosen the packing gland. Once the pump is started up, tight-en the gland gradually by hand. The temperature of the stuffing box housing must not be so high that it cannot be touched by hand; emanations of steam or smoke must not be observed. Otherwise, loosen back the gland gradually to achieve a balance between leaking and friction.

Do not over tighten the gland. An excessive tight will overheat the shaft and will wear it, together with the packing, in a premature way.

Ask your sales person for packing with oil ring or with water injection.

5 Starting up

5 Starting up 5.5. Pumps with mechanical sealIn pumps with mechanical seal, it is acceptable a seal leakage amount up to one drop per minute. If the seal is new, this rate can be even higher during the first running hours.

If the pump has a cartridge seal, double-acting seal and/ or an assistance plan (for ex.: API 11, 52, 61, etc.), ask for the seal special instructions.

5.6. Electric motor• Check if voltage and frequency correspond to those indicated on the

nameplate.

• Check if wire connections are in accordance with the correspondent connection diagram shown on the nameplate. Be sure that all terminal screws and nuts are tight.

• The motor must be properly grounded in accordance with prevalent standards for grounding electrical machines.

• If the motor has been stored in a humid place, or has been stopped for a long time, measure the insulating resistance as recommended per man-ufacturer.

• For further information read the motor manual.

5.7. Direction of rotationBefore starting up, check that the direction of rotation is the right one, according to what is indicated by the rotation arrow located on the lantern or on bearing housing.

For this verification, while the pump shaft is being watched, start the motor and immediately stop it, within a time no longer than 2 seconds. In case rotation direction is wrong, invert two terminal leads of the electrical main power supply.

See the instruction in the appendix if your pump has flexible shaft.



5.8. Pump start upBefore starting up, check again that all the valves in inlet and outlet lines are in open position, and there is not any kind of blocking along them.

As soon as the pump is started check that the pressure values in suction and dis-charge are within those allowed, also verify that vibrations and noise are normal.

verify that the seal leakage is according to 5.4 and 5.5. Check that there not exist other leakages in the installation.

6.1. Pump cross sectionalSee appendix 1.

5 Starting up

6 Cross sectional drawing and parts list


Figure 66.2. Assembly of cardan joint (200) type B, C, D, E

Lubrication quantity per joint Type [ml]

B 26 C 47 D 104 E 173

Cardan type B, C, D, E

Pos. Description14 Joint protection sleeve17 Joint pin18 Joint bush24 Joint protection boot31 Joint snap ring213 Joint block214 Lock cover

Pos. Denominación215 Zyko sleeve pin219 Straight spring pin220 Joint yoke221 O-Ring222 O-Ring272 Taper pin


Figure 76.3. Assembly of cardan joint (200) type A, F, G

Lubricant quantity per joint

Type (ml)

A0 4 A1 8 A2 32 A3 52 A4 90 A5 250 G1 400 F1 400

Cardan type A, F, G

Pos. Description14 Joint protection sleeve17 Joint pin24 Joint protection boot31 Joint snap ring213 Joint block219 Straight spring pin


81 53 4 762

Figure 86.4. Cross section of mechanical seal (56)

Núm. Description1 Seat2 Cup ring3 Rotating ring4 Drive band5 Retainer6 Bellows7 Spring8 Spring holder

Mechanical seal Bornemann std single spring.

Pump manual Eccentric Screw Pumps 2525Manual de operación Bomba a tornillo excéntrico

7 Maintenance 7.1. General InformationYour pump is a simple and reliable construction; therefore its maintenance is also easy and can be performed by your plant maintenance staff with a brief prior training. Bornemann Pumps offers this training course in company or in our own facilities.

Important: Only using Bornemann original spare parts it is guaranteed correct operation and long lifetime of your pump.

Do not use the pump if there is large leakage rate through the shaft, or if traces of excessive strain or wear are found. If so, immediately disconnect the equip-ment.

Inform Bombas Bornemann about any recurring problem, e.g. expansion or age-ing of the stator, break of shafts or cardan joints, etc.; we can work it out.

Dispose always the worn parts, grease, rubber, etc., according to the current en-vironmental regulations.

If accidentally water gets into the bearing housing; it should be disassembled, cleaned and greased back. Change bearings if necessary.

If the pump is going to remain stop for a long term, it is recommended to empty and clean it previously.

The cardan joint is hermetically sealed and lubricated for life. When overhaul-ing, verify if there is a clearance when a torsion strain is applied to the joint. If so, replace the cardan joint. Also check if there is any trace of wear or ageing on the joint protection boot (24); and eventually replace it. This part keeps the grease into the joint ensuring its life.

7.2. ToolsThe only special tools to perform the overhaul of Bornemann eccentric screw pumps are those ones required for disassembly and assembly of cardan joints. Bombas Bornemann offers a simple kit with all these special tools. Do not hesi-tate to order it to your sales person.

7 Maintenance 7.3. Before startingOnce the pump is stopped, shut off all power switches and circuit breakers. Lock electrical service panel in order to prevent it from being accidentally energized.

Shut all inlet and outlet valves, locking them conveniently.

If applicable, shut off any auxiliary supply as heating or seal plan.

Before disconnecting the pump from the piping, carefully depressurize and drain inlet and outlet lines.

Do not repair the equipment during the warranty period without prior approval of our factory or official technical service. Otherwise voids the warranty.



7 Maintenance 7.4. Recommended lubricants and lubrication intervalsWARNING!: Mineral and vegetal greases and oils are not compatible with EPDM

elastomers.WARNING!: Do not mix different greases unless you know about its compatibil-

ity properties.

7.4.1. Lubricants for cardan joints Food grade Elastomer type

certified NBR NBR

NSF/ FPM EPDM FPM EPDM

Supplier Type Products name USDA Up to 12 bar Over 12 bar

Bombas Grease 08201-00 yes • •Bornemann Grease 08202-00 yes • Grease 08203-00 no • • Grease 08204-00 no • Oil 08101-00 yes • • Oil 08102-00 no • •

Jax Grease Halo Guard FG-00 yes • Oil Flow-Guard 220 yes • •

Klüber Grease Kluebersynth UH1 141600 yes • • Grease Microlube GB 00 no • Oil Kluebersynth 4 UH1-220 yes • • Oil Kluebersynth EG4 220 no • •

Petro- Grease Purity FG 00 yes • •Canada Grease Precision Synthetic EP 00 no • • Oil Purity Synthetic EP 220 yes • • Oil Enduratex Synthetic EP 220 no • •

Mobil Grease Mobilgrease FM 101 yes • Grease Mobilgrease XPH 005 no • Grease Mobilith SHC 007 no • • Grease Polyrex SHC 005 yes • • Oil Mobilube 1 SHC 75W-90 no • •

Shell Grease Cassida Grease EPS 00 yes • • Grease Alvania GL 00 no • Oil Spirax STF 75W90 no • •

YPF Grease Grasalgon no • Oil Hipoidal Super S 75W90 no • •

verkol Grease verkofood Complex 0 yes •

Lubrication interval: At every joint disassembly and / or internal parts replace-ment. Cardan joints must remain hermetically sealed.

7 Maintenance 7.4.2. Lubricants for bearings Supplier Type Product name

Klüber Grease Centoplex 3Mobil Grease Mobilux EP 3Shell Grease Alvania RL 3YPF Grease 63 EPSKF Grease LGMT 3

Lubrication interval: On each housing disassembly or bearings replacement.

7.4.3. Lubricants for stator assembly and disassembly

You can use the same lubricant as the chosen for cardan joints or you can use neutral vaseline oil (check its non toxicity if necessary).

7.4.4. Lubricants for gearbox

Look for the card packed with the gearbox, it has specified the recommended lubricants and intervals. For further information you can contact Bombas Bornemann.



7 Maintenance 7.5. Assembly of cardan joint

7.5.1. Assembly of cardan joints type A, F and G. See figure7

Assembly 1 Fit one joint snap ring (31) approximately on the half of the cardan shaft (11). 2 Fit one joint protection sleeve (14) next to the joint snap ring mounted in step 1. 3 Assemble joint block (213) to the head of the cardan shaft (11) by means 4 of the joint pin (17). 5 verify that the joint pin (17) is properly positioned in the bodycenter of joint block (213). 6 Fit the straight spring pin (219). 7 Assemble accordingly eccentric screw (10); drive shaft (12) or joint head shaft (19) to the joint block (213) repeating steps 3 to 5. 8 Clean and then lubricate these assembled parts and the joint protection boot (24). 9 Place the joint protection boot (24) onto the joint block, do not use sharp tools. 10 Without removing the fitting tool, fill completely the joint with the apropiate lubricant (see 7.4). 11 Fit remaining joint snap ring (31) and joint protection sleeve (14).

7.5.2. Assembly and dismantling of cardan joints type B, C, D and E. See figure 67 Maintenance

Assembly 1 Fit two joint bushes (18) in the inner side of one joint yoke (220). 2 Position joint block (213) previously lubricated between joint bushes (18), verify the concentricity of the holes. 3 Fit joint pin (17). verify it is properly centered by looking through the perpendicular hole of the joint block (213). Use a soft face hammer. 4 Fasten straight spring pin (219) through joint block (213). 5 Repeat steps 1 to 4 for the remaining joint joke (220). 6 Fill the inner side of joint protection boot (24) and wet the joint yokes (220) with lubricant. Use recommended lubricant according 7.4. 7 Slide the joint protection boot (24) over the assembly. 8 Fit joint protection sleeve (14) and snap ring (31) to each joint yoke (220). 9 Fit O-ring (222) to each joint yoke (220). 10 Fit O-ring (221) to the desired rotative part; eccentric screw (10), cardan shaft (11), drive shaft (12) or joint head shaft (19). 11 Position part of step 10 into the joint yoke (220), check for the holes concentricity. 12 Fit zyko sleeve pin (215), assuring that its side with smaller inner diameter matches with the hole in joint yoke (220) that is identified with a special mark. 13 Nail taper pin (272) in the zyko sleeve pin (215). 14 Fix lock covers (214) in order to protect parts assembled in 12 and 13. 15 Repeat steps 10 to 14 for assembling the opposite end of the cardan joint.



7 Maintenance Dismantling 1 Remove the lock cover (214) located on the hole on the joint yoke (220) that is identified with a special mark. To ease this task it is recommended to use a drilling machine with a thin drill. 2 Remove taper pin (272). 3 Remove zyko sleeve pin (215). 4 Extract accordingly eccentric screw (10), cardan shaft (11), drive shaft (12) or joint head shaft (19). 5 Inspect for signs of wear or damage the iner side of joke joints (220).

Notes:•O-rings (221 and 222), lock covers (214) and straight spring pins (219) must be re-

placed in every overhaul •verify the surface of joint pins (17) and joint bushes (18). Replace them if there are signs of wear or damage •Get rid of the used lubricants according to the environment existing legislation.

Ask Bombas Bornemann for the special tools for cardan joints assembly and for demonstrative videos.

7.6 Pump dismantling: See appendix 2

7.7 Pump assembly: See appendix 2

Fig. B: Shaft mounting of cardan joint type B, C, D and E

Fig. C: Shaft mounting of cardan joint type A, F and G

Fig. D: Grease filling of cardan joint type A, F and G

Fig. A: Assembly of cardan joint type B, C, D and E

8 Troubleshooting Malfunction Possible cause Remedy

Entry of air through the seal Tighten parking gland. See 5.4. Replace seal part.

Low capacity The suction pipeline is not Check for leakage in gaskets, hermetically sealed auxiliaries and piping.

Incorrect filling (pump not primed) vent the air in the piping. See 5.3

Severe wear of the stator and/or rotor Replace the worn part.

Check fluid parameters: viscosity, Very low discharge temperature and/or vapor pressure. pressure Cavitation, lack of suction pressure Remove any obstruction on suction line. Increase inlet pipe section. Clean suction strainer (if any). Decrease pump speed.

Fluid drain through by pass or PSv line Check there isn’t any drain through these lines.

Low pump speed (rpm) Check driver.

Difficulty Pump blocked Turn the shaft by hand. Disassemble, when starting clean and lubricate stator.

Fluid frozen or below the dew point Heat pump and system.

High expansion of stator due to high Decrease fluid temperature. temperature Request an undersized rotor.

High swelling of stator due to Change rubber material of stator. chemical attack

Packing gland extremely tightened Loosen the gland.

Lack of motor torque See 2.7. In case of vFD, configure constant torque.

High noise level Cavitation, lack of suction pressure See above.

and vibrations Misalignment. Correct alignment. See 5.2

Mechanical problem Disassemble and check rotating parts.

Seal leakage Parking gland not enough tightened Tighten parking gland. See 5.4.

Wear or corrosion of shaft under Replace part. the seal position

Seal is worn or damaged. Replace mech. seal, shaft parking or lip seal accordingly.



9 WarrantyAll the equipment supplied by Bombas Bornemann S.R.L. is guaranteed, assuring to the end user that this equipment is free of defects in materials or workman-ship employed in its manufacture.

The warranty is valid for twelve (12) months after delivery ex-works and obliges us to repair or replace (at our choice), without any charge, any component part of the equipment that, to our own criteria may be defective, whenever this defect is only due to our responsibility. We are not forced to replace the entire equipment.

Repair or replacement of defective parts will be performed in our workshop. If this is required to be done at the customer facility, the costs of travel, accommo-dation, and travel hours will be billed.

The warranty does not cover:• normalwear(e.g.mech.seal,stator,etc.);• defectscausedbytransportation,inanyofitsforms;• equipment modification, or overhaul done by anyone other than our

company without prior approval of Bombas Bornemann S.R.L.;• abnormalworkingconditions;• defectiveinstallations,accidents,abuse,improperuseorwrongopera-

tion in accordance to the instructions specified by Bombas Bornemann S.R.L.;

• anyotherdamagebasedonfortuitouseventorforcemajeure.

Bombas Bornemann S.R.L. will not be responsible for the costs of equipment removal, installation, or other that may arise related to the warranty claim.

Bombas Bornemann S.R.L. will not be liable for damage, harm or any inci-dent based in the use or operation of the equipment. Any damage or loss during the delivery or shipment will be customer respon-sibility.

With regard to the gear motors, motors or any other accessories integrated in our equipment, the warranty terms of our suppliers are equivalent to ours with the only exception of names and locations.

Pumps and system engineering for industry, foods, environment, petroleum and naval industry.

ArgentinaBombas Bornemann S.R.L.Armenia 2898 - B1605CDP Munro.

Bs.As. - Argentina

Tel.: +5411 4756-8008 (líneas rotativas)

Fax: +5411 4756-5541

E-mail: [email protected]

www.bornemann-ar.com

ArgentinaBombas Bornemann S.R.L.Armenia 2898 - B1605CDP Munro.

Bs.As. - Argentina

Tel.: +5411 4756-8008 (líneas rotativas)

Fax: +5411 4756-5541

E-mail: [email protected]

www.bornemann-ar.com

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