Running, Starting And Stopping; Assembly And Dismantling - BOMBAS IDEAL GNI Series Owner's Manual

Bombas Ideal, S.A.

9.- RUNNING, STARTING AND STOPPING

The operation of centrifugal pumps as GNI a simple and safe matter. Pump should not be used for any
purpose other than the one it was prepared for.
9.1.- Starting up.
Before starting up the following points should be taken into account:
-Check the proper priming of the pump and pipelines, as the fluid should overflow the system to
ensure that all the air has been vented, especially any contained in the suction piping.
-Make sure that the sense of rotation coincides with the direction of the arrow located on the pump
body.
Centrifugal pumps performance is simple and safe and does not require any exhaustive checking, though
to guarantee proper operation it is important to take the following points into account both the first time
this is started up and after a long period running:
Operation should be silent and vibration-free.
Check that the flow and service pressure match what is determined in the work fields (see the relevant
technical documentation from Bombas Ideal S.A.).
Check that the input current (consumption in amperes) is not over the values stated in the motor
characteristics plate.
When the equipment is to be idle for long periods, the pump and piping should be completely drained, to
prevent the risks of frost during the winter and any possible rusting of the mechanical items that might be
caused through trapped liquid

10.- ASSEMBLY AND DISMANTLING

If the pump needs to be dismantled to carry out any maintenance or repairing, proceed as described
below.
It is quite often that pump casing nº 379 does not need any repairing, so it can be left on site, connected
to suction and delivery pipes. Drain all the liquid from the pipelines and pump casing by removing the
pump drain plug nº 42.
Loose screws nº 95-96 that secure the casing cover nº 812 to pump casing nº379; You can then
dismantle the sub-assembly consisting of the motor nº 1001 with the casing cover nº 812 and the impeller
nº 726.
To disassemble the impeller nº 726, loose the impeller nut nº 828. Then dismantle the rotary part of the
mechanical seal nº 63.
When the screws nº 51 that fix the casing cover nº 812 to the motor nº 1001 have been released
proceed to dismantle the stationary seal ring nº 63.
After repairing or replacing the faulty parts you can proceed to assemble the pump proceeding as stated
in this section, inversely.
11
GB