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2. Mounting the drive
Mounting the drive unit involves four main steps:
• ensuring correct drive alignment
• securing the drive to the boat
• connecting the drive to the steering system
• completing a steering check
Drive alignment
When mounting the linear drive unit, check that it is aligned correctly:
• The main drive assembly must be at right angles to the mounting surface (see
Figure 4
).
• The drive unit must be at right angles to the tiller arm when the rudder is amidships (see
Figure 4
).
Figure 4: Drive unit alignment
• The push rod must be accurately aligned with the tiller arm plane of rotation. The ball end
fitting only allows up to 5 degrees misalignment between the push rod and tiller arm
plane of rotation (see
Figure 5
).
CAUTION
Alignment
Accurate angular alignment is extremely important. You must not exceed this
+/- 5 degree limit under any circumstances.
A (mid stroke)
90º
D5077-1
90º
Drive A (mid stroke) B (tiller arm radius)
Type 1 700 mm (27.5 in) 250 mm (10 in)
Type 2 short 700 mm (27.5 in) 250 mm (10 in)
Type 2 long 850 mm (33.5 in) 355 mm (14 in)
B (tiller arm
radius)
Side view
Top view
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