Alamarin Jet AJ 340, Operation And Maintenance Manual

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Maintenance
Operation and maintenance manual
32 KHO/340/EN/1.0.0.
Figure 30. Installing the wedge and the impeller
A Wedge
B Shaft's wedge groove
C Impeller
2. Gently push the impeller against the duct walls and use a feeler gauge to
make sure that there is a gap of 0.8–1.4 mm between the impeller blade
and the upper wall.
Note that the shaft hangs downwards due to gravity and the oil pump
belt. If the gap between the impeller and the upper wall is too small, add
more spacers on to the shaft until the correct gap (0.8–1.4 mm) is reached.
Correspondingly, if the gap is too wide, reduce it by removing spacers.
CAUTION!
If the gap is too big, it will cause loss of power and reduce
performance.
3. Install the shaft sleeve, the spacer and the screw in place in reverse to that
when removing them (figure 27).
4. Install the stator and the steering nozzle in place in reverse order to that
when removing it (section 4.8.2.
Removing the impeller
, page 27).
4.9. Intermediate shaft