Kobelt 7012 Series, Owner'S Operation, Installation & Maintenance Manual

Page: 9 / 32

Helm pump-7012 Kobelt Manufacturing Co. Ltd.
Rev A MNL-7012 9 of 32
5 I
NSTALLATION
5.1 M
ECHANICAL
The helm pumps are supplied with a short shaft or with a long shaft. The helm pumps can be
mounted through the console or behind the console, although the short shaft version would
normally be mounted in the thru-console mode.
When deciding which way to mount the pump, attention must be paid to the method of filling
the system. Now is a good time to install your fittings in the helm pump.
Allow space for the steering wheel.
When mounted thru-console, the filler plug is accessible, but when behind the console, it is
obscured. In the behind console mounting, either arrange access to the filler plug or adopt
some form of remote filling system. The remote filling system can either be a small tank or a
tube run up from the pump to a position convenient for topping up with oil.
Helm pump Model 7012 are best installed with the shaft on a horizontal plane.
5.1.1 Thru-console
A template is provided for the cut-out to allow the front half of the pump to protrude through
the console with the flange butting up against the back or front face of the console.
The pump should be secured to the console by four bolts through the bolt holes at the four
corners of the pump flange.
5.1.2 Behind console
A template is provided for the cut-out to allow the pump shaft through the console and for the
drilling of four holes to secure the pump to the back face of the console.
Four bolts and washers are required to screw into the tapped holes in the face of the pump.
If the variable flow facility of the helm pump is to be used, cut the hole for access to the
adjusting screw.
5.1.3 Expansion Tanks
Expansion Tanks are normally supplied by the shipyard. They can also be obtained from Kobelt
and, we recommend that approximately 1 Quart (or 1 Litre) minimum volume should be used
in this application. The vent line from the Expansion Tank to the Helm Pump should protrude
approximately 1" from the bottom of the Expansion Tank into the tank itself. This avoids dirt
and condensed water from entering the steering system. The vent plug must be arranged in
such a fashion that water spray and rain cannot enter the tank. (See Figure 2)
5.1.4 Installation with adaptor plate
An adaptor plate is optionally available to simplify mounting of the pump. This plate can be
installed on either side of the console. A template is provided to drill the necessary holes.
Two bolts with washers are required in this case to secure the pump to the bulkhead.