10
Hydraulic Linear Drive - Installation Guide
Connecting to the steering system
CAUTION:
Consult the steering gear manufacturer if you have any doubt
about the strength of the existing tiller arm or rudder quadrant.
This drive produces a considerable amount of force, so you must
ensure that your tiller arm or rudder quadrant can cope with the peak
thrust specified in the Table 1, Ram specifications
Use one of these methods to attach the push rod to the rudder stock:
1. Independent tiller arm: we recommend that you attach the push
rod to the rudder stock via an independent tiller arm (Edson and
Whitlock offer a standard fitting).
2. Steering linkage tiller arm or rudder quadrant: in certain
cases, you may be able to attach the push rod to the same tiller arm
or rudder quadrant used by the main steering linkage. Consult the
steering manufacturer before you modify the rudder quadrant.
Attaching the rod end
Use the supplied tiller pin assembly to attach the rod end to the tiller
arm, at the tiller arm radius shown in Figure 4.
1. Attach the tiller pin to the tiller arm:
•
insert the tiller pin through the tiller arm hole, so the flange
remains above the arm (see Figure 7)
•
make sure that the tiller pin is a tight fit in the tiller arm
•
use the supplied lock washer and fully tighten the lock nut
Note: If necessary, you will need to drill a hole in the tiller arm at the
radius shown in Figure 4.
Figure 7: Attaching the push rod to the tiller arm
Lock
washer
Tiller arm
Flange
Drive
Hole diameter 'X'
Type 2
13 mm (0.52 in)
Type 3
20 mm (0.78 in)
D5090-1
Tiller pin
Washer
Rod end
R-clip
X
Lock nut
