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Paddle Maintenance
Note:
Over time, you may need to adjust the mixer
paddles to account for wear.
Adjusting the Paddles
Aligning the Circumferential Drum
Wipers
1.
Rotate a paddle from the left row of paddles
around the drum and locate at the interior of the
drum the smallest distance between the drum
and the wiper of the paddle
2.
Mark the inside of the inside of the drum at the
location that you determined in step 1.
Figure 44
3.
Align the wiper of a paddle to the mark.
4.
Loosen the carriage bolts and flanged locknuts
that secure the paddle blade and wiper to the
paddle
(Figure
45).
(Figure
44).
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33
Figure 45
1. Wiper
2. Distance between
paddle-blade edge and
wiper edge—3 to 6 mm
(1/8 to 1/4 inch)
3. Wiper bar
5.
Adjust the position of the wiper so that the wiper
lightly contacts the drum across the length of
the wiper
(Figure
46).
Figure 46
1. Wiper lightly contacting the drum at the smallest distance
between the drum and the wiper of the paddle
6.
Adjust the position of the paddle blade so that
the outer edge is 3 to 6 mm (1/8 to 1/4 inch)
from the outer edge of the wiper.
7.
Torque the carriage bolts and nuts to 19 to 25
N-m (14 to 18 ft-lb).
8.
Repeat steps
4
through
for that paddle row.
9.
Repeat the procedure for the other paddle rows.
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4. Paddle blade
5. Carriage bolt and flanged
locknut
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7
for the other paddle
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