Grundfos AMG Serie Instrucciones De Instalación Y Funcionamiento página 17

5.3.5 Mounting the propeller blades of
AFG.xx.180/230
A
2
5
4
4
3
1
AFG.xx.180/230
Pos. Description
A Blade position
1 Pin
2 Screw
3 Screw
4 Washer
5 Nut
The fixation of the propeller blades is en-
sured by the pressure of the clamping jaws
formed by the screws (pos. 3) and nuts
(pos. 5). The function of the pin (pos. 1) is
to position the blades in the right angle be-
fore tightening the clamping jaws.
See fig. AFG.xx.180/230 for the referenced positions.
1. Check the premounted pins (pos. 1) (only for
positioning).
2. Tighten the screw (pos. 2) to widen the opening in
the clamping jaw.
3. Insert the blade from above. Turn it slightly and let
it rest on the pin. Turn it back until the blade slides
down and is leveled with the hub.
4. Remove the screw (pos. 2).
5. Put Loctite 243 threadlocker on the thread of the
screw (pos. 3).
6. Mount pos. 3, 4, and 5 in both holes and tighten
by hand.
7. Tighten both nuts (pos. 5) with a torque wrench to
100 Nm (A4-80).
8. Make sure that the blades are in the correct
position. See pos. A in fig. AFG.xx.180/230.
9. Apply silicone to the joint between the blade and
the hub.
5.3.6 Mounting the propeller blades of AFG.xx.260
4
3
2
AFG.xx.260
Pos. Description
1 Key
2 Screw
3 Cover plate
4 Washer
See fig. AFG.xx.260 for the referenced positions.
1. Drive the key (pos. 1 ) into the keyway.
2. Lubricate the blade shaft and the hole in the hub.
3. First put the cover plate (pos. 3), then the washer
(pos. 4) on the screw (pos. 2).
4. Put Loctite 243 threadlocker on the thread of the
screw (pos. 2).
5. Turn the hub and insert the blade from above.
6. Turn the blade to the correct position and let it
slide into the hub.
7. Screw-in the screw (pos. 2) by hand and tighten it
with a torque wrench to 183 Nm (A2-70).
8. Make sure that the blades are in the correct
position.
9. Apply silicone to the joint between the blade and
the hub and between the cover plate (pos. 3) and
the hub.
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