AL-KO AT4F Series, Руководство по эксплуатации и сборке

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Subject to changes in line with technical progress!
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Commissioning
1
2
3
Fig. 62 Example for gap dimension (depending on the manufacturer)
1 Impeller 2 Inlet nozzle
3 Gap dimension gauge NW Nominal width (nozzle)
D1 Inner diameter (cover disc nozzle of the impeller) D2 Outer diameter (inlet nozzle)
s
min
With test gauge for gap width to be ensured ü Coverage
Step Action
1 Check the gap dimension between the impeller and inlet nozzle according to the fan manufacturer documentation. En -
sure that the gap dimension is not underrun during any phase of the rotary movement (turning by hand). For the valid
measured values, see the documentation of the fan manufacturer.
2 Measure the gap dimension at four points m circumference offset by 90°. Place the supplied gauge to the outer diame -
ter of the inlet nozzle. The minimum gap must not be underrun. The gauge must not jam, slight rubbing of the impeller
during rotation is permissible.
3 The fan may only be operated if the test has been passed.
Document the test results.
ATTENTION
Risk of ignition due to impermissible gap dimensions between stationary and rotating com-
ponents.
„
Ensure that the gap does not fall below the valid gap dimension at any point.
ATTENTION
Observe the manufacturer's documentation.