Colasit CMVpro 125-400 ATEX, Руководство по эксплуатации, Страница: 74 / 88

12 | Repair
74 / 88 Operating instructions CMVpro 125-400 ATEX | Version 1-en
• Feed the grounding cable through a suitable Ex cable gland and connect it
in the terminal box
_
Chap. 8.4 [
}
52].
• Connect electric motor
_
Chap. 8.5 [
}
52],
_
Chap. 8.2.3 [
}
46].
• Check motor rotation direction _ Chap. 9.2.1 [ } 56].
• Mount impeller _ Chap. 12.5 [ } 70].
• Conduct test run _ Chap. 9.2.3 [ } 57].
12.8 Check impeller
DANGER Risk of explosion due to grinding impeller
Death or serious injuries upon explosion.
▪ Overheating of possible grinding points.
u
Be mindful of grinding noises during fan operation.
u
In the event of grinding noises, switch the fan off immediately and arrange
for repair.
NOTICE Risk of damage due to grinding impeller
Damage to impeller.
u
Perform measurement checks of distance X of the impeller according to the
table.
u
If necessary, tighten the fastening screw of the hub adapter.
u Determine grinding point. Remove deposits or foreign objects present in the
casing
_ Chap. 11.3.3 [ } 62].
X
1
Y
Fig. 40: Measuring impeller position (sectional view)
The overlap Y of the inlet cover taper and the impeller cannot be measured di-
rectly. Instead, the distance X from the inlet connection to the impeller support
disc is measured according to the table below.
As an aid, place a wooden board (1, see illustration) across the inlet connection.