Raymarine Autohelm ST6000 - Maintenance; Safety

Autohelm
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Autohelm
SeaTalk Service Manual 8
7. Product History Type 2 Linear Drive Actuators (Long
Stroke) (Z029 & Z032)
Change Serial Number Comments
Introduction 470001
Fracmo Motors
introduced
780042
Girdle Buffer/Stop
material changed
790045
E
xtended high temperature use caused
r
ubber buffer to swell giving higher back
drive
Rockford Leadscrew
introduced
100002
8. Product History Type 1 Linear Drive Actuators (Z039)
Change Serial Number Comments
Introduction 470003
Fracmo Motors
introduced
680086
Girdle Buffer/Stop
material changed
790068 Extended high temperature use
c
aused rubber buffer to swell giving
higher back drive
Rockford Leadscrew
introduced
100002
9. Product History Type 2 Linear Drive Actuators (Short
Stroke) (Z058 & Z059)
Change Serial No. Comments
Introduction 470001
Fracmo Motors introduced 780042
Girdle Buffer/Stop material
changed
790045
Rockford Leadscrew
introduced
100002
E
xtended high temperature use caused
rubber to swell giving higher backdrive.