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7.3.2 Mounting on a 48.3mm mast tube
The Superwind 350/48V can also be mounted to a stainless steel 48.3 mm mast,
(Fig, 7.3.2) provided the wall thickness is 2.0 mm and the inner diameter is at least
44.0 mm.
7.3.2.1 Preparations at the mast head:
Deburr the end of the tube carefully (inside and outside)
File off the welding seam if necessary.
Drill two 5 mm holes and tap M6. The distance to the mast top is 40 mm.
With this configuration the plastic bushing and three rubber gasketed M6 x 8
socket cap screws are not needed. For easier assembly, lubricate the two
elastomer damping rings on the wind turbine yaw shaft and the inside of the
mast tube with Vaseline® or a similar petroleum jelly product. Now gently
push the yaw shaft into the mast until reaching the stop limit at the O-ring
seal, taking care not to damage the damping rings during installation.
Next, apply a small amount of Locktite® to the threads of the two hexagon
socket button head bolts (M6 x 6), insert and tighten for axial attachment. The
bolts will extend into the groove of the yaw shaft, but will not touch it. Once
assembled correctly, this installation provides both sound and vibration
dampening (Fig. No.7.3.2).
7.3.3 Mounting on other mast tubes
If other mast sizes are used to mount the Superwind 350/48V, ensure the inside
diameter is of the required size (to prevent excessive movement). The OUTSIDE
diameter of the tube must not be greater than 70 mm (2.75”) to ensure there is
sufficient space between the mast and rotor blades. There must also be no exterior
fittings, stays, etc, which could obstruct operation of the rotor (Fig. No. 7.3.3)
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