INSTRUCTION FOR ONBOARD INSTALLATION - TYPE A  

APPLICATION:
Mounting platform:

The machine installation can be done in differently desired directions, for this purpose an iron or sound wood Mounting Platform must be prepared and fixed firmly to the hull at the required height and perfectly square with the rudder stock.


A : Fastening of the iron base:

Before drilling the mounting platform, with the base ( already drilled), make sure that:

    1)  The rudder is in a symmetrical position with the boat

    2)  The cylinder rod is in the intermediate position of its course (1/2 way)

    3)  The base axis in parallel with the boat axis

    4)  The base is at the correct distance from the rudder axis “Steering gear axis centre” to be respected after which it may be drilled and tightened with bolts.


B : Alignment between rudder axis and cylinder axis:
     

Before tightening the bolts, suitable thicknesses of packing should be used, (if the mounting platform could not be planed before ) in a way that the inclination between the cylinder axis and the two gudgeon pins (tiller arm base), is not above 2°; errors within this range are compensated for by the ball joints on the cylinder rods.

A good alignment is to be preferred as well as the welded stops at the base angles, after tightening the bolts.

TUBING:   Rigid tubing:

It is advisable to use steel tubing without welding (Mannesmann) of different diameters as indicated in the drawing “Hydraulic Scheme”

The various connections must be made with steel flanges to be welded electrically to the tube, or threaded steel pipe fittings or welded steel pipe fittings; do not use hemp on the threaded pipe fittings but an appropriate Teflon tape, found on sale.

Check to see that the tubes are internally clean before assembling, fasten well with brackets so that they will not vibrate and do not pass inside the cold stores, even if the oil used is at a low freezing point.

The position of the tube connections “1” and “2” which go from the hydraulic transmitter to the device and then to the actuator must not be inverted.

Flexible tubing:

The flexible tubing should be mounted with the external fitting, using two spanners so no deformation occurs.

They should be free of any contact, so no rubbing occurs during working.


FILLING THE PLANT:

Unscrew one of the air bleeder screws on the cylinder and insert a transparent plastic tubing on it and place the other end into a bucket.

Now start filling the Transmitter with oil and slowly turn the hydraulic transmitter steering wheel in the same direction as the unscrewed air bleeder screw until clean oil comes out of the tube with no air bubbles. Close the air bleeder screw.

Now  repeat the same operation with the other air bleeder screw on the cylinder, filling and turning the wheel in the opposite direction until clean oil comes out of the tube with no air bubbles.

The oil level in the transmitter should not be above the piston block inside.

Once finished filling the system, turn the wheel from hard over to hard over several times to see if the rudder responds correctly and check that there are no leaks at the connections. The transmitter plug/cap  must be vented. 



EMERGENCY:

In case of an emergency, open the By-pass valve and manoeuvre with the Emergency Tiller armi.                 

MAINTENANCE:

It is sufficient for the maintenance to periodically control the transmitter oil level, which should not be below the minimum level.
Periodically grease the device and the stainless steel piston rods.
The piston rods should be protected from eventual leaking from the top cover


OIL TO BE USED:

 

We recommend hydraulic oil with the following characteristics:

 

    Viscosity Engler 1,8 – 2,5 °E at a Temperature of 40 °C                

AGIP                      OSO 15
API             CIS 10
BP               ENERGOL HP 10
CASTROL  HYSPIN AVS 10
ELF            SPINELF 10
ESSO                     SPINESSO 10
IP                 IP HYDRUS OIL 10
MOBIL                  MOBIL DTE 21
Q8               HAYDN 10
SHELL                   TELLUS OIL C10
TOTAL  AZOLLA ZS 10

 

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