Rutland FM1803-2
Installation & Operation
Document No: SM-146 Issue D 14.03.08
Marlec Engineering Co Ltd
13
Blade & Hub Assembly continued
Fit the 3 turbine blades to the protruding blade bolts, ensuring the flat surface of the
blades faces the front plate.
Fit the front hub plate to the shaft with the pre-fitted pins protruding outwards.
Ensure alignment with the flats on the shaft, the pins with the holes in the hub boss,
and the cutouts with the spinner fixing holes in the blades.
Fit the nuts & washers to the blade bolts & tighten using 2 x 13mm spanners. If
necessary use a flat blade screwdriver from the back of the hub assembly to push
the bolts through.
Using a suitable hammer, drive the 3 protruding pins into the corresponding holes in
the front plate & boss assy, until the pins are flush with the front plate.
Fit the centre screw, ‘D’ washer & tab washer to the assembly & tighten the screw
securely to push the assembly back against the shoulder on the shaft. Ensure there is
no gap between the rear hub plate & shaft shoulder.
Using a hammer & suitable drift, bend the edges of the tab washer against the flats
on the centre screw to prevent loosening.
Check tightness of all screws. (Do not over-tighten).
Fit the plastic spinner in position on the front of the generator hub and secure in
place with the 3 No10 x 9.5 screws provided.
Alternatively the turbine and spinner can be fitted after mounting the generator
assembly to the tower
.
Fig 4. Turbine Assembly Fixing
Insert tab washer into
slot in front hub plate
Bend a corner of the tab
washer against a flat on the
bolt head
