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Maintenance

Change the oil

BA-10407-02-V08

Motor-driven diaphragm dosing pump

MEMDOS LB

Operating instructions

Maintenance work to be carried

out

Frequency

Clean suction and pressure valves

Regularly

Check that electrical connections
are not damaged

Regularly

Tighten up dosing head bolts

Regularly

Before initial commissioning

After each diaphragm
change

Check diaphragm for leakage due
to rupture

Regularly (as long as no leak
monitoring system is installed)

Check that the installed accesso-
ries are functioning correctly

Regularly

Check the dosing pump for unusual
noises during operation, unusual
temperatures or smells

Regularly

Replace parts that are subject to
wear (diaphragms, valves, seals,
etc.)

When unacceptable levels of
wear are detected

Rinse out and clean the dosing
pump

Before changing diaphragms

Before taking out of service
for a long period of time

After feeding aggressive,
sticky, crystallising or con-
taminated liquids

Checking the electric servomotor

Regularly

Table 26: Maintenance information and maintenance intervals

12.2 Change the oil

Fig. 14: Draining oil on the dosing pump

Precondition for action:

A suitable oil collecting tank is held ready.

Gear oil of the viscosity class ISO-VG460 (SAE 140).

Perform the following working steps:

Unscrew the closing screw (1) from the oil outlet (3) and remove the
seal (2).

Let all of the gear oil drain from the housing.

Place the washer seal onto the oil outlet and tighten up the closing
screw.

Fig. 15: Dosing pump oil inlet

Unscrew the closing screw (1) from the oil inlet (2) and remove the
seal (3).

Fill oil in the oil inlet. Check the oil level in the oil level glass (4) at the
same time. The oil level should reach to c. the middle of the oil level
glass.

The following volumes are required:

MEMDOS LB

Filling volumes

4 - 80, 150

0.25 l

110, 160 - 1010

0.75 l

Table 27: Fill levels oil

Place the washer seal onto the oil inlet and tighten up the closing
screw.

Oil change complete.

Содержание MEMDOS LB

Страница 1: ...stems Original operating instructions Lutz Jesco GmbH 2018 BA 10407 02 V08 Motor driven diaphragm dosing pump MEMDOS LB Operating instructions Read the operating manual The user is responsible for ins...

Страница 2: ......

Страница 3: ...otor data 14 5 5 Electrical servomotors 18 6 Dimensions 19 6 1 MEMDOS LB 4 80 150 19 6 2 MEMDOS LB 110 160 1010 20 6 3 MEMDOS LB 4 80 150 with electrical servomotor 21 6 4 MEMDOS LB 110 160 1010 with...

Страница 4: ...NG Refers to a potentially hazardous situation Failure to follow this instruction may lead to death or se vere injuries CAUTION Refers to a potentially hazardous situation Failure to follow this instr...

Страница 5: ...ing the mains supply connect the dosing lines Check that all the screw connections have been tightened correctly and are leak proof WARNING Caustic burns or other burns through dosing media While work...

Страница 6: ...re parts This applies to MEM DOS LB 80 1010 dosing pumps 2 3 Hazards due to non compliance with the safety instructions Failure to follow the safety instructions may endanger not only persons but also...

Страница 7: ...work assigned to them and to recognise and avoid any potential dangers by themselves They are specially trained for their specific working environment and are familiar with relevant standards and prov...

Страница 8: ...ature of the media and the operating pres sure i Information on the suitability of materials combined with dif ferent dosing media can be found in the Compatibility Chart of the manufacturer The infor...

Страница 9: ...orrect operation n Protective equipment not functioning correctly or dismantled n Modification of the dosing pump without authority n Ignoring operational disturbances n Elimination of operational dis...

Страница 10: ...of delivery Please compare the delivery note with the scope of delivery The follow ing items are part of the scope of delivery n Dosing pump MEMDOS LB n Operating instructions n Motor operating instru...

Страница 11: ...equipment about safety or the product s way of functioning The information must stay legible for the duration of the service life of the product Material Max XXX l h XXX gph at 50 Hz Max XXX l h XXX...

Страница 12: ...8 21 7 max delivery pressure bar 12 16 12 16 12 16 10 10 5 5 Max stroke frequency rpm 50 Hz 26 26 72 72 120 120 72 120 72 120 60 Hz 31 2 31 2 86 4 86 4 144 144 86 4 144 86 4 144 Suction height for non...

Страница 13: ...ve 1000 mPa s this must be checked individually and the stroke frequency must be between 50 and 100 strokes min 5 2 1 Approved media temperature Information Value MEMDOS LB all sizes Dosing head made...

Страница 14: ...DN15 DN25 Table 12 Other data MEMDOS LB 110 160 1010 Specifications without motor For weight specifications see 5 4 Motor data on page 14 DN10 only with double ball valves 5 4 Motor data 5 4 1 230 V 1...

Страница 15: ...kW 50 Hz 0 12 0 37 0 55 0 75 60 Hz 0 14 0 44 0 65 0 90 Speed rpm 50 Hz 1360 1350 1385 1450 60 Hz 1670 1650 1685 1750 Nominal current A 50 Hz 0 49 1 08 1 44 1 75 60 Hz 0 42 1 03 1 37 1 72 Voltage V 3 5...

Страница 16: ...0 Hz 460 270 Mains voltage DIN EC 60038 Frequency Hz 50 60 Operating mode S1 Protection class IP55 Insulation class F Size 63 71 80 Flange Diameter mm 90 105 120 Shaft mm 11 x 23 14 x 30 19 x 40 Cooli...

Страница 17: ...kg 16 19 12 24 Table 16 Motors for use in Zone 1 explosive risk areas 5 4 4 2 Motors for use in Zone 2 explosive risk areas Information Value MEMDOS LB Size 4 80 150 110 160 400 510 760 1010 Power out...

Страница 18: ...consumption VA max 20 Torque Nm 8 Actuating time switch actuation path 10 turns s 240 50 Hz 200 60 Hz Service switch Manual automatic operation Protection classification IP65 with cable screw connect...

Страница 19: ...instructions 6 Dimensions 6 1 MEMDOS LB 4 80 150 Fig 3 Dimensioned drawings MEMDOS LB 4 80 and 150 Scale MEMDOS LB size 4 20 35 60 80 150 A 126 149 249 B 116 121 5 133 C 249 256 280 D 389 389 389 L D...

Страница 20: ...d drawing MEMDOS LB 110 160 1010 Scale MEMDOS LB size 110 160 210 260 310 400 510 1010 A 249 268 312 5 352 B 160 170 175 208 194 3 C 346 357 362 402 375 5 D 437 437 437 509 L Depends on the connection...

Страница 21: ...driven diaphragm dosing pump MEMDOS LB Operating instructions 6 3 MEMDOS LB 4 80 150 with electrical servomotor Fig 5 Dimensioned drawing MEMDOS LB 4 80 and 150 with electrical servomotor 6 4 MEMDOS...

Страница 22: ...ed under the ceiling n The frame of foundation for fixing the dosing pump must not be sub jected to jolts The pump must be vibration free and stable n There must be enough free space in the area of th...

Страница 23: ...Stainless steel and plastic parts particularly those made of PVC that are bolted together in a detachable connection e g the dosing head and the valves can lock This makes them difficult to release B...

Страница 24: ...when connecting the dosing lines to the dosing pump observe the alignment n Pressure valve above the dosing head n Suction valve under the dosing head 8 4 Connecting a leakage drain Lutz Jesco GmbH do...

Страница 25: ...em can return dosing medium into the suc tion line in front of the dosing pump In this case there must not be a non return valve or a foot valve in the suction line n You should install the pressure r...

Страница 26: ...n of the system demonstrates a varying suction pressure or supply pressure n Dosing pumps that are installed above dosing tanks deliver less as the tank empties since the suction head increases n Dosi...

Страница 27: ...ay result which could result in fatal injuries Earth the dosing pump drive motor and all metal parts along the suction and pressure piping route 9 1 Drive motor connection n The electrical connection...

Страница 28: ...lation instructions in the operating manual for the electric servomotor 10 Control Stroke length adjustment The desired delivery rate of the dosing pump is set using the stroke length adjustment Turni...

Страница 29: ...the pump without backpressure For this purpose we recommend in stalling a relief valve on the discharge side of the dosing pump Precondition for action The dosing pump was fitted and installed in acc...

Страница 30: ...e mains supply or activate the Emergency Stop switch in stalled in the system n Depending on the type of incident you must depressurized the hy draulic connections or locked to prevent dosing medium f...

Страница 31: ...enerate a pressure that is many times the rated one The dosing medium can escape in the case of material failure or wear on the dosing head the connection pipe or the seals that are used Carry out mai...

Страница 32: ...of time n After feeding aggressive sticky crystallising or con taminated liquids Checking the electric servomotor Regularly Table 26 Maintenance information and maintenance intervals 12 2 Change the...

Страница 33: ...and turn it out in an anti clockwise fashion If it is difficult to move use pincers on the diaphragm edge Threads which are diffi cult to move can be hit lightly on the face of the diaphragm centre in...

Страница 34: ...osing head While doing this ensure that the seals or O rings are correctly seated inside the valves and the dosing head WARNING Caustic burns or other burns through dosing media If valves are serviced...

Страница 35: ...ase the pipe diameter Current supply interrupted Reconnect the current supply The drive motor s electrical data does not match that of the mains supply Check the electrical installation System backpre...

Страница 36: ...o zero stroke Set the stroke length adjusting knob correctly Diaphragm return spring broken Contact the manufacturer Current supply interrupted Reconnect the current supply The drive motor s electrica...

Страница 37: ...match that of the mains supply Check the electrical installation Capacitor defective wrong size or connected incorrectly Connect the capacitor correctly or replace System backpressure too high measure...

Страница 38: ...ity l h Delivery capacity l h Delivery capacity l h MEMDOS LB 4 MEMDOS LB 4 HP MEMDOS LB 10 0 0l h 2 0l h 4 0l h 6 0l h 8 0l h 10 0l h 12 0l h 14 0l h 16 0l h 18 0l h 20 0l h 22 0l h 24 0l h 26 0l h 2...

Страница 39: ...0 0l h 30 0l h 60 0l h 90 0l h 120 0l h 150 0l h 180 0l h 210 0l h 240 0l h 270 0l h 300 0l h 330 0l h 360 0l h 0 10 20 30 40 50 60 70 80 90 100 1 bar 10 bar 5 bar 0 0l h 50 0l h 100 0l h 150 0l h 200...

Страница 40: ...aparato mencionado a conti nuaci n cumple con los requisitos sanitarios y de seguridad vigentes de las directivas de la U E citadas a continuaci n Esta declaraci n ser invalidad por cambios en el apar...

Страница 41: ...f delivery Reason for repair Dosing medium Description Irritating Yes No Properties Corrosive Yes No We hereby certify that the product has been cleaned thoroughly inside and outside before returning...

Страница 42: ...Sender Company Phone Date Address Contact person Manufacturer order no Date of delivery Device type Serial number Nominal capacity nominal pressure Description of fault Service conditions of the devic...

Страница 43: ...ns 6 Hydraulic accessories 25 Hydraulic installations 23 I Injection nozzle 25 Installation electrical 27 hydraulic 23 Installing the Dosing Pump 22 Intended purpose 8 Intended use 8 M Maintenance 31...

Страница 44: ......

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