SPX Cooling Technologies 07-1126 user manual Installation, Rotation and Flow Direction

Installation

Rotation and Flow Direction

The rotation direction is correct when the airflow moves from the convex back (suction surface) of the blade, to the concave side (pressure surface). Figure 1 shows the conventional clockwise di- rection of rotation and normal direction of airflow as viewed from the discharge face of the rotor.

Flow Direction

Flow Direction

Figure 1

Installation Instructions

1––Remove blade pillow block and fasteners 4, 5, 6, 7, 15 from the hub disk, one set a time (Figure 2).

2––If the hub has not been supplied already assembled to the flange, install the coupling flange 2 on the disk 3, complying with torque settings, bolt orientation, tightening order, and pins as shown in the table following Figure 2.

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