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Tightening torques for screw and bolt connections (Page169)

5.5.2.3 Horizontal types of construction with 󹪞ange

The standard 󹪞ange is provided with a centering. The choice of 󹪝t for the mating 󹪞ange on the

driven machine is the system manufacturer's or the plant operator's responsibility.

If the machine is not 󹪝tted with a standard 󹪞ange, align the machine to suit the driven

machine.

Procedure

The machine axis must be horizontal when it is lifted and the 󹪞ange must be parallel to the

mating 󹪞ange, so as to avoid seizing and stressing. Otherwise damage to the centering will

result.

1. Grease the centering 󹪞ange with assembly paste to make the process easier.

2. Screw three studs into tapped holes spaced about 120° apart around the driven machine

󹪞ange. The studs act as positioning aids.

3. Position the machine so that its axis is aligned with that of the driven machine, but not yet

quite touching. Advance the machine slowly towards the driven machine; advancing too

quickly risks damaging the centering.

4. If necessary, rotate the machine into the right position so that the clearance holes in the

󹪞ange are central to the tapped holes.

5. Move the machine fully up against the mating 󹪞ange so that it is fully in contact.

6. Fix the machine using the 󹪞ange 󹪝xing bolts, 󹪝nishing by replacing the studs.

Siemens SIMOTICS XP 1MB 1 Series User Manual

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