Raymarine ST4000+ - Page 38

30 ST4000+ Wheel & Tiller Autopilots: Owner’s Handbook
4 Maintenance & Fault Finding
This procedure is usually sufficient to correct a slipping or dragging
drive belt. In some cases, however, you may need to repeat the steps
to adjust the clutch further.
Replacing the belt
The drive belt is designed to be user serviceable. If there is
insufficient adjustment to cure a slipping clutch, or if the drive belt is
damaged in any way (if it is broken, frayed or stretched), you should
replace the drive belt. You can obtain a replacement belt from any
Raymarine dealer (part number A18083). Fitting instructions are
supplied with the belt.
User serviceable parts
You can obtain the following 4000 mk2 wheel drive spare parts from
your Raymarine dealer:
Part description Part number
Front cover A18074
Clutch lever A18077
Clutch knob A18078
2
3
1
Loosen the screw
(2 turns)
Tighten the screw
(2 turns)
To tighten
the clutch
(4 clicks)
To loosen
the clutch
(4 clicks)
Adjusting the clutch
Clutch knob
screw
Clutch knob
D5349-2
81131_7.book Page 30 Wednesday, March 17, 2004 3:59 PM