| Page 67 | SEABOB Operation Manual | 7
8. Apply a small amount of Klüber Staburags NBU 30
PTM lubricating grease to the threads of the five M5
x 16 attachment screws. Insert the impeller disc. Use
the Allen key (size 4) to retighten the screws (approx.
5 Nm; torque wrench recommended). Be sure to tight
-
en the screws evenly, so that the impeller disc does
not get wedged in.
9. Slide the impeller wheel back onto the shaft. Make
sure that the keys on the shaft are positioned correct
-
ly in the corresponding slots. Use the two open-ended
spanners (size 17) to refasten the two M10 locknuts
(screw on the self-locking nut last).
10. Insert the stator. Ensure that the stator locks into
place correctly. It should be seated securely in the
housing so that it stays in the correct position.
Note: If the stator is missing or spinning freely, little or
no thrust is produced in the jet drive system with dif
-
fuser.
The protective lamellas are attached to the SEA-
BOB housing and should never be removed. Be
-
fore fastening the jet channel cover in place, check that
the protective lamellas are seated properly and securely.
Note: Removing the protective lamellas would not en-
hance the thrust of the craft.
11. Put the jet channel cover back on, and fasten it in
place as described in Chapter 7.4.
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