ST4000+ Autopilots
22 ST4000+ Autopilots Service Manual 83115-1
4.2 Disassembly/assembly
D2395-1
1. Ram cap
2. Thrust tube
3. Lead screw assembly
4. Planet gear (x4)
5. Shim
6. 'O' ring (x3)
7. Gear annulus
8. Motor (Q114)
9. Flux ring
10. Motor sleeve
11. End cap assembly
12. Cable clamp
13. Clamp seal
14. Cable clamp nut
15. SeaTalk deck plug
1
Notes:
A. Ensure cable clamp nut (14) is unscrewed before
undoing the motor sleeve.
B. The hole in the gear annulus (7) that accepts the
drive gear of the motor (8) is of a different diameter
to that of the ST4000+ GP gear annulus.
C. Care should be taken not to cross-thread the
annulus (7) when screwing into the thrust tube (2).
3
4 (x4)
5
6
7
Notes B & C
6
8
9
6
10
11
12
13
14
Note A
15
2
ST4000+ GP
16mm diameter
End view of Annulus (7)
ST4000+
13mm diameter
Figure 12. Tiller Drive Actuator exploded view
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