Grundfos Fire NKF Montage- Und Betriebsanleitung Seite 18

Step
1
2
3
4
5
6
18
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Action
Aligning pump and motor
roughly. Tighten the
screws in the base frame
to the correct torque.
See section 8.1 Pump.
Mark the coupling, e.g.
with a marker pen.
Hold a straight-edge
ruler against the
coupling and determine
the inaccuracy, if any,
with a feeler gauge.
Turn the coupling by 90 °
and repeat the
measurement with a
straight edge ruler and
feeler gauge. If the
measurement for S1 is
less than 0.2 mm, then
the alignment is
complete. A slightly
larger gap is acceptable
as the pump set is not
intended for continuous
operation. Go to step 8.
Adjust the position of the
motor. Slacken the
screws fixing the motor.
Insert shims with the
required thickness.
Step
7
8
If the coupling and drive unit are not supplied by Grundfos, make
sure to follow the coupling manufacturer's instructions.
10.5.2 Pump with diesel engine
A flexible coupling connects engine and pump. See fig. 16.
Fig. 16 Flexible coupling between pump and engine
The coupling is bolted axially on the engine fly-wheel. The pump
shaft is pushed on axially and bolted radially with four bolts.
See fig. 17.
A-A
Fig. 17 Connection and alignment of pump/engine
Action
Tighten the screws to
the correct torque.
Continue with step 3 to
check the alignment
again.
Check the distance S2
both vertically and
horizontally. See the
table "Gap width S2" on
page 17.
If the gap width is within
the tolerances, the
alignment is finished.
If not, continue with
step 6.
A
A