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14

Operating manual for 

BAUER gear pump

The evacuation pump does not take anything in – the lever on the return valve can be moved easily

-

 

(a) leakage in the intake line

-

 

(b) intake line clogged

ð

 

re (a) Check intake line and seals

ð

 

re (b) Rinse separator/trap

When the evacuation pump is taken into operation, the return valve is closed because of the negative
pressure – the lever on the return valve can only be moved with great effort. In case of leakage or
clogging, no negative pressure can be built up.

Note: If the intake hose is only pushed through the surface scum of the manure cistern, or if the
content of the cistern is not properly mixed, solid components may be taken in that clog the
intake line.

The suction process takes very long and the centrifugal pump cannot deliver any more; the water column (liquid
manure) breaks down:

-

 

(a) slight leakage in the intake line

-

 

(b) suction height too high; medium too viscous

ð

 

re (a) Check intake line and seals

ð

 

re (b) Reduce suction height and/or add water

The evacuation pump is slightly more powerful than the centrifugal pump. If there are slight leakages or if
the suction head is too high, the evacuation pump may be able to fill the intake line, but the centrifugal
pump is no longer able to delivery the medium.

Note: If the liquid manure is very viscous, only half the suction height compared to water can be
achieved.

5 PUMP SHUT-DOWN

5.1  Gear pumps with and without self-priming unit

Close the stop valve in the delivery line and lower the speed until the engine stops.  Then disengage the PTO.
Now open the stop valve slowly allowing the liquid still remaining in the pipes to flow back into the pit and release
overpressure.
If only a short interruption is planned we recommend to close the valve.  This will save renewed filling of the
pump.
If the pump is moved to a different position the counter-pressure must be released as described above  When
the pump is uncoupled sufficient liquid remains in the pump and it is not necessary to fill it up again for instance
with water before putting the pump into operation again.

6  SERVICE AND MAINTENANCE

It cannot be emphasised often enough how much proper service and maintenance influence performance
reliability and service life of a machine.

Содержание Magnum SM 1000

Страница 1: ...OPERATING MANUAL for Gear Pumps Magnum SM 540 SM 1000 SM 2000 without and with self priming unit ...

Страница 2: ...y the content of the present operating manual All information contained in the present manual is based on the latest product details available at the time of printing BAUER reserves the right to change without prior notice without assuming any liability BAUER gear pumps are designed for safe and reliable operation provided they are operated in compliance with the present instruction manual In spit...

Страница 3: ...auer at com www bauer at com Owner or operator Name Address Tel Fax Note Please make a note of the type and serial number of your gear pump and its accessories Be sure to specify these details every time you contact your dealer Printing date Version July 2000 1 In all warranty claims and correspondence relating to this machine it is essential to specify the complete serial number group including a...

Страница 4: ...er is also an entrepreneur According to 9 PHG Product Liability Law liability for damage to corporeal things caused by defective products is expressly excluded This exclusion of liability also applies to parts not manufactured by BAUER itself but purchased from external suppliers Duty to furnish information Even if the customer passes on the machine later on he is obliged to hand the operating man...

Страница 5: ...r pump without self priming unit 6 4 2 Gear pump with self priming unit 9 4 3 Self vacuum system for centrifugal pumps 12 Function and design 12 5 PUMP SHUT DOWN 14 5 1 Gear pumps with and without self priming unit 14 6 SERVICE AND MAINTENANCE 14 6 1 Mounting instructions for mechanical seal Ø 50 for SM 1000 SM 2000 and SM 3500 15 6 2 Mounting instructions for mechanical seal Ø 45 for pump SM 540 ...

Страница 6: ...upling the machine stability 6 Always mount balancing weights properly at the points provided 7 Observe restrictions pertaining to axle load total weight and transport dimensions 8 Inspect and mount all items required for transport such as lighting warning signals and possible safety devices 9 Mounted or trailed machines as well as balancing weights influence road behaviour steering and braking ca...

Страница 7: ...e 2 When connecting hydraulic cylinders and motors make sure the hydraulic hoses are connected as specified 3 Before coupling the hydraulic hoses with the tractor s hydraulic system make sure that the entire hydraulic system is pressureless both on the tractor and implement side 4 Inspect the hydraulic lines at regular intervals and replace them immediately in case of defects or ageing Replaced ho...

Страница 8: ...r pressurised parts the operation of slurry handling devices may also involve danger resulting from slurry gasses These gasses carbon dioxide CO2 ammonium NH3 hydrogen sulphide H2S methane CH4 could cause poisoning as well as explosions When operating in particular mixers agitators recirculation systems stirring nozzles and slurry aeration systems one must always make sure that no gasses are allow...

Страница 9: ...ng and gearbox are sealed off by a mechanical seal 3 1 1 Suction line The suction line must be equipped with a manual lever operated foot valve Suction line and pump must be filled with water before starting up the system 3 1 2 Delivery line We recommend to mount a stop valve in the delivery line This is an advantage if pump operation is interrupted only for a short while Closing of the stop valve...

Страница 10: ... suction line with the pump s suction connection and close the foot valve Always use the shortest possible suction pipe Check that all connections are air tight and that the suction hose is in good condition Always ensure the pumped medium is homogeneous DO NOT OVER MIX Air in the slurry affects performance can cause serious pump damage by cavitation Difficult suction conditions can seriously affe...

Страница 11: ...ne and close the stop valve in the delivery line Connect tractor and pump by means of the drive shaft Use drive shafts with shear pin couplings only Refer to separate drive shaft manual for length adjustment profile tube overlap and maintenance Do not raise or lower pump on tractor hydraulic linkage while PTO shaft is turning WARNING WARNING ...

Страница 12: ...o quickly Cavitation can occur under these conditions the pump can become damaged very quickly Increase PTO speed gradually until the desired operating pressure and discharge rate are reached NOTE The pump does not always need to be operated at maximum operating speed Always choose a speed that is just sufficient to obtain the desired performance Failure to this instruction could increase fuel con...

Страница 13: ...ways use the shortest possible suction pipe Check that all connections are air tight and that the suction hose is in good condition Always ensure the pumped medium is homogeneous DO NOT OVER MIX Air in the slurry affects performance can cause serious pump damage by cavitation Difficult suction conditions can seriously affect the performance of the pump and lead to cavitation Always fill up the pum...

Страница 14: ...onnect tractor and pump by means of the drive shaft Refer to separate drive shaft manual for length adjustment profile tube overlapping and maintenance Make connection between side branch and tank quick coupling Open stop valve in the branch Engage the PTO and run the tractor at about 300 rpm drive speed WARNING ...

Страница 15: ... medium is distributed by the spreding device at the end of the delivery line Do not fill the delivery line too quickly Cavitation can occur under these conditions and the pump can become damaged very quickly Increase PTO speed gradually until the desired operating pressure and discharge rate are reached Increase PTO speed until the desired operating pressure and discharge rate are reached NOTE Th...

Страница 16: ...ge or disengage PTO abruptly to avoid shocks and pressure hammers 4 3 Self vacuum system for centrifugal pumps Function and design WARNING evacuation pump separator trap return valve lever spring not shown centrifugal pump ball valve not shown oil tank ...

Страница 17: ...pump has been switched off With the hydraulic self vacuum device the centrifugal pump need not should not run during the suction process The self vacuum system can be operated directly from the tractor Near the end of the suction process connect the centrifugal pump and switch the evacuation pump off Do not let the evacuation pump continue to run this would only cause unnecessary heating and wear ...

Страница 18: ...slightly more powerful than the centrifugal pump If there are slight leakages or if the suction head is too high the evacuation pump may be able to fill the intake line but the centrifugal pump is no longer able to delivery the medium Note If the liquid manure is very viscous only half the suction height compared to water can be achieved 5 PUMP SHUT DOWN 5 1 Gear pumps with and without self primin...

Страница 19: ...be destroyed if the pump runs dry for a short while Functional check up of the mechanical seal is limited to visual inspection of the oil level in the oil reservoir If liquid emerges from the oil reservoir while the pump is running or if the predetermined oil level cannot be reached the sealing must be checked for damage foreign objects Always replace both rotary and stationary seal ring at the sa...

Страница 20: ...e stationary seal ring in the seat To protect the O ring of the rotating element cover the sharp edge of the key groove only up to the end of the cone Spray the O rings with Molykote to reduce friction water alcohol or silicone grease are suitable too Mount the stationary seal ring Groove and anti rotation lock pin must be in alignment Preparing the rotating collar Remove the threaded bolt ...

Страница 21: ...ve are properly aligned misalignment will bend the pin when force is applied and the spring is pressed away ensuing excessive pretension of the sliding faces Press on the mechanical seal with the help of the sleeve remove the sleeve again Insert the disk Mounting the collar The disk must be positioned in such a way that the threaded bolts are accessible through the slot ...

Страница 22: ... space adjusting nut mounting length 47 5 0 5mm Tighten the nut by hand Use Allen key to tighten fix the threaded bolts that have been moistened with Loctite Remove the adhesive tape The assembly kit mentioned in the manual is available on request ...

Страница 23: ...Operating manual for BAUER gear pump 19 6 2 Mounting instructions for mechanical seal Ø 45 for pump SM 540 Part Nr 061 6551 Sectional drawing for the mechanical seal with mounted hub and impeller ...

Страница 24: ...or hub For measuring this distance it is necessary to install the hub on the gearshaft without key and fasten the nut on the shaft with torque 250 Nm Afterwards dismount the hub 4 Calculation for needed shims Distance A plus distance B minus distance C shall have a value of 45 0 5 mm When a higher value as 45 mm 0 5 mm exists it is necessary to put shims on the hub to get exactly this value This m...

Страница 25: ...gher than 150m3 h you must use a suction line size 8 HK 194 3 Attaching the delivery line The centrifugal pump must always be equipped with a control valve in the delivery line 4 Check the oil level in the gearbox and in the oil reservoir 5 Attaching the p t o shaft Always use p t o shafts with shearing pin P t o shaft should only be slightly bend additional transverse moment for inlet shaft of ge...

Страница 26: ... with mechanical self priming unit pumping against the closed valve is forbidden Note also the higher the dry matter content the lower the suction height suction capacity Bigger sized suction lines and smaller drive speeds have a positive affect to the entire pumping operation The suction capacity of the evacuating pump is sufficient for filling the suction line inspite of minor leaks rubber ring ...

Страница 27: ... start e g dry run insufficient lubrication cracks failure of the sealing Factors that influence the pump wear General information Important influential elements for the safety and the life of the centrifugal pump are operational i e ones that occur during the pump operation The pump is laid out for certain performances If operated outside its capacity you have to expect operational conditions tha...

Страница 28: ...the foot valve Open and close the flap several times Rubber on foot valve damaged Replace rubber The pump does not deliver Suction head too high Leak or blockage in the suction line Too much solids Decrease suction head Repair defective parts or remove blockage Add water Wrong direction of rotation Seal damage Reverse direction of rotation Replace the seal Discharge decreases Too much counter pres...

Страница 29: ...Operating manual for BAUER gear pump 25 Gear pump SM1000 c w self primer Gear pump SM540 c w self primer Assembly drawing for ...

Страница 30: ...lies with the relevant fundamental provisions for safety and health as stipulated in the EU directives Any modification of this machine without our prior express consent render this certificate invalid Designation of the machine BAUER gear pump Basic models MAGNUM SM 540 SM 1000 SM 2000 each without and with self primer This range of machines has been designed and built in compliance with the stan...

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