VARISCO V Series Instructions For The Installation, Use And Maintenance

Also see for V 100-2: Operating manual Operating manual Instructions for the use and maintenance

Contents

VARISCO V Series Instructions For The Installation, Use And Maintenance Manual pdf 13 page image

1312 ASSEMBLYIn general, the disassembly instructions should be followed in reverse order.12.1 Mounting the ball bearing (38)❑ Clean the seat on the pedestal (08) thoroughly.❑ Mount the bearing using a bench press.❑ Tighten the bearing lock rings (14,15). They should be adjusted when the pump iscompletely assembled.12.2 Mounting the shaft bush (36)❑ Clean the seat in the rear cover (09) thoroughly. Press the bush into place usingthe press with a continuous movement. Ensure that the bush is not damaged.12.3 Mounting the shaft and rotor (02)❑ Mount the rotor key (41) in its seat on the shaft and force the shaft into the rotorwith a press. Do not mount the shaft key (42).❑ Assemble the shaft with the rear cover, pedestal and gland or seal box. This oper-ation is easier to carry out with the pump positioned vertically resting on the rotor.12.4 Mounting the ST5, ST6 mechanical seal (cast iron pumps from V6 to V25) (fig.20)❑ Set up the shaft in the vertical position with the rotor on the bench.❑ Clean the shaft thoroughly.❑ Slip on the rotating part of mechanical seal (66.1) with the seat facing away fromthe rotor.Take care not to damage the internal gasket during this operation.❑ Make sure that the spring is locked in its seat.❑ Slip on seal box (80) wiyh the stationary face (66.2) already fitted.❑ Screw on the cover (80.6) until it is tight.12.5 Mounting the ST4, ST5, ST6 mechanical seal (fig.21)❑ Set up the shaft in the vertical position with the rotor on the bench.❑ Slip on the rear cover (09).❑ Clean the shaft thoroughly.❑ Slip on the rotating part of mechanical seal (66.1) with the seat facing away fromthe rotor. Take care not to damage the internal gasket during this operation.Lock the grub screws after positioning the seal as shown in the table below.NB: The table shows the diameter D of the shaft and the distance L betweenthe seal (66) and the rear cover (09) when the latter is not fixed in place butonly resting on the rear of the rotor (fig. 22).❑ Mount the stationary seat (66.2) carefully in the seal box (80).❑ Mount the V ring (68) in the seal box (80).❑ Mount the seal box on the shaft without fixing it, taking care not to damagethe V-ring.❑ Slide the inner bearing lock ring (15) and the sleeve (17) on to the shaft❑ Mount the pedestal and fix the rear cover temporarily to the pedestal. Screw onthe shaft lock nut with its lock washer.❑ Mount the outer bearing lock ring (14) and tighten the seal box screws.❑ Mount the casing and cover and adjust the rotor position as described in paragraph10.4.Attention: The cover (04) must be mounted correctly. The idler pin (06) must bepositioned symmetrically between the two ports in the shorter path between theports.❑ Block the security dowels (45) of the lock rings (14,15) ( models V25-2 and V30-2do not have security dowels).fig.22fig.20V6>V25Gfig.21Dimension L for standard seals ISO 3069 DIN 24960for pumps serie KPump type D (mm) L (mm)V6, V12 * 14 -V20, V25 * 18 -V25-2, V30-2 22 9V50-3 30 14V60-2 35 18V60-2 (+R) 35 17V70-2 40 25,5V70-2 (+R) 40 35,5V80-2 40 25,5V80-2 (+R) 40 35,5V85-2 40 25,5V90-2 55 22,5V90-2 (+R) 55 34V100-2 55 22,5V100-2 (+R) 55 34V120-2 70 9,5V150-2 70 9,5V151 70 9,5V180 80 40,5V200 90 35,5ISO 3069 DIN 24960 standard seals* NON standard seals

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