Aquair 100
TM
Manual
© Ampair
®
, 2007
www.ampair.com
Page 20 of 23
MAINTENANCE AND SPARES
Figure 17. Sectioned Drawing
KEY:
1. After-body
2. Bearing (2): 15x3 x11mm sealed
3. Stator (2) Six pole
4. 0’ ring: international size 358
5. Fore-body
6. Rotor (2) Permanent Magnet
7. Internal circlip: 35x1.5mm
8. Shaft seal 15x35x7mm rubber coated, plain
lip
9. Shaft: with two M6 tapped holes
10. Body fasteners (2): M8x25mm hex set screw
with shake-proof, fibre & plain washer
11. Cable gland with strain relief
12. Output cable: 5m of 1.5sq mm, twin-cored,
tinned copper wire, outer sheath of low
temperature grade PVC
13. Rectifiers (2): rated at 25 Amp 600v
14. Rectifier fasteners (2): M5x16mm pan head
screw & shake-proof washer
15. Rectifier cover
16. Cover fasteners (4): # 8x3/8” self tapping
screw & M4 fibre washer
Inspection
The shaft seal protecting the front bearing should be renewed regularly, particularly after long ocean
voyages. The bearings should be replaced when they become noisy.
In water mode
, regularly inspect the following: suspension lanyards, shaft connector & shackle, tow
rope attachments and gimbal pivot components.
Inspect the body and tow turbine occasionally, cleaning off any corrosion and re-painting any damaged
areas. The shaft connector has a second set of holes, which can be used once the original holes show
signs of wear or elongation.
If the tow turbine blade tip becomes bent as shown in Fig. 18, this will cause a change in pitch,
increased drag and premature surfacing. View the trailing edge of the blade, edge on, as shown. The
