Volute–Casing Centrifugal Pumps Retain for future Series ...

1 ALLWEILER1 Operating and Maintenance InstructionsVM No. 2 No.:550 129 volute casing Centrifugal PumpsRetainfor futureSeries NTT and CTTuse!Design: Drive side with regreasable groove ball bearingJob No.:Pump Ident No.:Machine No.:Pump type:Operating data of the pump according to order data sheetFor dimensions see order specific installation drawingThese instructions are to be used only together with the following operating and main-tenance instructions: Series NTT/CTTVM Nr. 550 102 These Operating and Maintenance Instructions relate to a non standard design version. The sec-tions are divided such that they can be allocated to the (standard) 2 Ident Nr.

2 550 1291 GeneralFor specific applications, volute casing centrifugalpumps of Series NTT and CTT may be designed with aregreasable bearing instead of the liftetime grease lu-bricated bearing on the drive of BearingThe nominal service life of the bearing is designed for aminimum of 2 years continuous operation, in accord-ance with DIN ISO 281. The actual usable life may belower, due to intermittent operation, high temperature,low viscosity or the running noises and the temperature in the bearingarea must be checked at regular intervals. We recom-mend monitoring bearings by means of shock pulsemeasurements.

3 If damage to a bearing is detected, thegroove ball bearing must be bearing area can become very hot. Risk of burning if touched!At the factory, the groove ball bearing was providedwith a sufficient grease bearing grease:For the lubrication of the drive side groove ball bear-ing, the below listed rolling bearing grease or an equiv-alent special grease with molybdenum disulfite portionand the following characteristics must be :The rolling bearing grease must be free from resin andacid and anti :Worked penetration265 295 mm/10 Dropping point> 200 CRange of temperatureapplication: 10 bis 150 CManufacturerBrandTotal LUBRIPLATE N 3000 Sole distributor in the Federal Republic of Germany.

4 Deutsche Total GmbHRelubrication / Grease quantitiesRelubrication is effected with a grease gun, via thegrease nipple screwed in the bearing at this pointFor relubrication, the pump must be stopped. Theinstructions in the table are valid for new and re-placed ..operatingGrease quantity in gramsfor Pumps with bearingbracket sizehours360470530650 RelubricateRelubricateRelubricateRelubri cateRelubricateRelubricateRelubricateRep lace bearing 2000400060008000100001200014000160001766 6666 30121212121212 75303030303030 160656565656565 Replace bearingFor operational safety reasons the groove ball bearingmust be replaced every 16000 operating grease filling for a new groove ball bearingmust be effected as described Carefully clean the groove ball Fill hollow spaces between the rolling bodies up toapprox.

5 40% with grease. Depending upon the bear-ing bracket size, this corresponds to the followinggrease bracket sizeGrease quantitiy3604705306506 Gramm12 Gramm30 Gramm65 Gramm3. Scrape off excessive grease (most suitably withyour fingers, do not use any metallic object).Relubrication / grease quality as above 2 Ident Nr. 550 the Centrifugal pumpBefore dismounting, the following work must be carriedout:SElectrical danger must be eliminated! The motormust be secured against being switched on. Ifnecessary, the power supply cable must bedisconnected from the motor by an all stop devices in the inlet and delivery pipe-line, and in the auxiliary the pump housing to cool to the fluid in flowable condition from the pump.

6 Note: Use a collecting pump must be depressurized and substances and/or environmentallyharmful media must be drained off and collectedsuch that no danger to life and limb is compatible disposal must auxiliary pipelines, if manometer lines, manometers and hold-ing protection against accidental pump must be dismounted by a qualifiedtechnician using the pertaining prevent damage, it is especially important to ensurethat the components are dismounted concentricallyand that they are not instructions:SThe Pumps are produced as standard in process de-sign.

7 This means that the insert unit can be dis-mounted without the need to remove the volutehousing and the pipes. SIf a coupling with a distance piece is used, the motorcan remain on the base plate during this process. SThe fitting position of all components must be accu-rately marked before the Centrifugal pumpBefore remounting check all parts for wearand aging and, as necessary, replace withoriginal replacement all parts before mounting. Always fit pump must be mounted by a qualified techni-cian using the pertaining drawings. The prescribedtightening torque must be prevent damage, it is especially important to ensurethat the components are mounted concentrically andthat they are not instructions:SThe markings applied when dismounting must beobserved.

8 The components must be put back in theiroriginal fitting position. SWhen assembling, screws and nuts must be paintedwith a suitable high temperature screw paste ( P37).SAfter fitting the insert unit, the pump shaft must lieexactly flush with the motor shaft. SAfter tightening the screws, it must be possible toturn the pump and drive manually without torqueNote: With poor and lightly greased surfaces, the va-lues must be increased by 10 15%, in order to reachthe required [Nm] 10M 12M 12M 12M 1/4G 3/8G 1 6M 8M 20 x 1,5M 24 x 1,5M 30 x 1,5M 36 x 1, 2 Ident Nr. 550 129 Following the mounting the Centrifugal pump, thefollowing operations are to be groove ball bearing with coupling (please refer to Section above).

9 SAttach protection against accidental contact andsupporting foot, if manometer pipelines, manometer and hold-ing devices to the danger must be eliminated! Power supplycables must only be connected by qualifiedelectricians. Pay attention to sense of up pump as per instructions in Section to technical AGWerk RadolfzellPostfach 1140D 78301 RadolfzellAllweilerstra e 1D 78315 RadolfzellGermany&(++ 49) 7732 86 0 Fax(++ 49) 7732 86 436E mail.