| Page 66 | SEABOB Operation Manual |
7
4. Use two open-ended spanners (size 17) to remove
the two M10 locknuts on the shaft. Pull the impeller
wheel off the shaft.
5. Remove the five attachment screws (M5 x 16 stain
-
less steel cheese head screws with hex socket) on the
impeller disc using an Allen key (size 4).
6. Remove the disc by pressing up against the impeller
wheel. To do this, use the Allen key to screw two of
the attachment screws into the two threaded holes
on the impeller disc. Keep turning the screws until the
disc comes off. Be sure to turn both screws evenly, so
that the impeller disc does not get wedged in.
7. Replace any damaged impeller blades. Make sure that
the new impeller blades are inserted properly into the
groove, so that the curved side of the blades is point
-
ing toward the bow of the SEABOB. Impeller blades
that are inserted backwards only produce around one
half of the normal thrust.
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