Xylem FLYFT P7900 Installation, Operation And Maintenance Manual page 64

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6 Maintenance
Figure 22: Screw numbers
Table 17: Screw sequence
a) Tighten the screws according to the sequence.
b) Tighten the screws again according to the sequence.
c) Tighten the screws again according to the sequence.
6. Cover the screw heads by using grease.
7. Check that the hub can be rotated by hand.
62
Order
1
2
3
4
5
6
Tightening torque: 70 Nm (52 lbf·ft)
Tightening torque: 154 Nm (114 lbf·ft)
Tightening torque: 230 Nm (170 lbf·ft)
Screw numbers
1, 2
3, 4
5, 6
7, 8
9, 10
11, 12
P7900 Installation, Operation, and Maintenance Manual

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