12
2933
6
2021
-
SH 240 & SH 320
Required Modifi cations After Pre-check
EN
To increase the space between the hatch and the hull the entire SRF flange and motor must be raised at the stern end.
1. With the hatch in the open position raise the stern end of the SRF flange and motor until the appropriate clearance is achieved.
(NB: continue to
raise the stern height until this is obtained.)
2. Use a wedge to keep the thruster SRF flange and motor stable.
3. Open and close the hatch multiple times to ensure:
- Clearance from the hull and hatch while open
- Hatch closes flush with the hull and extra force is still transferred to the hull and hatch surface contact edges.
4. Record the height and kept the wedges in place for future moulding of the SRF flange.
MC_0068
!
Please refer to the graphic for special considerations relating to your model
!
MG_0183
Conflict with hatch
and hull
Hatch closed with
pressure
hatch opens
without conflict
3
1
2
hatch opens
without conflict
Raise SRF flange
on stern end
Use wedge to prop
the SRF flange to
required height
