15
3.1.2 VM32-VM200
• Remove the motor(no need for power >5.5kw) and coupling, refer to 2.1 dismantling.
• Remove seal cover(pos.10) and four screws (pos.11).
• Slacken 3 screws of mechanical seals(pos.34) by about a quarter turn to make the mechanical seal fall
off the shaft (pos.51).
• Remove mechanical seal from pump head (pos.3)
3.2 Assembly
3.2.1 VM1,3,5,10,15,20
• Moisten the shaft end with soapy water.
• Press mechanical seal down on the shaft. Screw the mechanical seal into the pump head or lining
and tighten it.
• Fit the motor to the pump head.
• Tighten the bolts (pos.39) symmetrically.
• Fit the shaft pin (pos. 7) into the shaft pin hole and t the coupling hal ves (pos. 5) on the shaft. Tighten
the screws (pos.9) in coupling (but not tightly). Check that the gaps of either side of the coupling halves
are equal.
• Insert a suitable screwdriver between the top of the coupling and the pump head, and press the shaft/
coupling down against stop. Then Insert the screwdriver between the bottom of the coupling and the
mechanical seal, raise the shaft/the coupling to 1.5mm.
• Hold the shaft/the coupling in this position and tighten the four screws in the coupling (pos. 9) by the
required torque as per Table 2.
• Tighten the three screws of mechanical seal.
• Fit the coupling guard (pos. 1a, 1b) and fasten the screws (pos. 2).
3.2.2 VM32-VM200
• Moisten the shaft end with soap water.
• Press mechanical seal down on to the shaft, put it into pump head (pos. 3), tighten screw (pos.11) and
three screws of mechanical seal. Then lift the shaft and insert shaft height setting tool (pos.10a).
• Fit the motor to the pump head.
• Tighten the bolts (pos.39) symmetrically.
• Fit the coupling (pos.5) to the shaft. Tighten four screws(pos.9) in cou pling to torque required in Table 2.
(make sure distance of either side of cou pling halves are equal)
• Remove shaft height setting tool (pos.10a).
• Fit the coupling guard (pos.1) and tighten screws (pos.2).
4. Dismantling and assembly of bare shaft pump without motor
4.1 Dismantling
4.1.1 VM1,3,5,10,15,20
• Remove the shaft seal. See 3.1 Dismantling.
• Remove the screws together with the washers (pas. 8).
• Loosen the pump head (pas. 3) with a light blow on the edge and lift it.
• Remove lining (pos 3a)
• Remove top diffuser(pos. 50a) (Not for VM10,15,20)
• Remove the cylinder(pos. 55)
• Lift the diffuser stack off the inlet & outlet chamber (pos.26) .
• Remove inducer (pos. 5a)(Not for VM10,15,20)
4.1.2 VM32,42,65,90
• Remove mechanical sea, refer to 3.1 dismantling.
• Remove screws (pos.12).
• Remove bracket (pos.7)
• Remove nut and washer(pos.8 8a)
• Remove pump head (pos.3) by tapping at the edge of it.
• Remove cylinder (pos.55).
• Lift the diffuser stacks from inlet and outlet chamber (pos.26).
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