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Chapter 5: Installing the ST4000+ 59
5 Installing the ST4000+
5.4 Tiller drive (tiller pilots only)
Critical dimensions
Installing the tiller drive involves mounting it between the tiller and a
fixed point on the boat’s structure. Two dimensions are critical for
correct installation:
• Dimension A = 620 mm (24.5 in): the distance from the
mounting socket to the tiller pin. Pull out the drive pushrod to this
dimension.
Note: If your installation requires a pushrod extension (see page 61)
or cantilever mount (see page 65),this dimension will increase.
• Dimension B = 460 mm (18 in): the distance from the rudder
stock’s center line to the tiller pin.
'A'
620 mm (24.5 in)
468 mm (18.4 in)
38 mm
(1.5 in)
44 mm
(1.7 in)
'B'
460 mm
(18 in)
'B' 460 mm (18 in)
D5339-1
90˚
Sloping rudderstock
Rudder axis