Vetus MTC100Z Instrucciones De Instalación página 7

Connect the oil expansion tank to the steering pump's top con-
necting pipe using a hose and a hose pillar.
N.B.: This section of the steering system has virtually no pres-
sure (the pressure is related to the height of the fluid column
between the expansion tank and the steering pump).
The Vetus oil expansion tank cap has an air relief hole; when
fitting another tank, ensure that this air relief is present.
Connections
Never use Teflon tape for sealing the screw connections; the
use of a fluid sealant should be done with great care; problems
could be created if any sealant enters the hydraulic system.
One of the fittings, which is intended for attaching the pipe to
the cylinder, has already been assembled. The second fitting
still needs to be installed.
Note: When working with a Z-Drive, assemble the cylinder first.
Only then should you install the second attachment!
Installing the Hoses
The separate parts of the hydraulic steering system are con-
nected together with nylon hose (8 mm. (0.31") internal, 12 mm.
(0.47") external diameter).
Hydraulic Steering with Double Operation:
Connect the hoses from both pumps to the cylinder using
T-pieces.
Consult Diagrams '1', '2', '3', '4'.
To reduce internal resistance always keep the connecting hoses
as short as possible.
With reference to bleeding the system, it is recommended that
the horizontal hose sections should be fitted with a slope of
3 cm. per metre (3/8" per ft); the pump side higher than the
cylinder side.
Install the hoses in such a way that the risk of external dam-
age or attack by chemicals or high temperature is reduced to
a minimum.
Protect hoses which pass through a bulkhead with grommets or
use bulkhead couplings.
Bends must be absolutely free of kinks; any kink in the system
restricts the free flow of the hydraulic oil.
After installation, blow through the hoses with nitrogen, or com-
pressed air, for example, (never use water!) to check for any
blockages and remove any pollutants.
The minimum bend radius for the nylon hose is 90 mm (3.5").
Always fit the hose with brackets; distance between brackets
about 60 cm.
The hose is shortened by
cutting.
Hydraulic Cylinder for Outboard Steering and Z-Drive
Never cut the hose with
a saw (sawdust in the
hydraulic system will create
problems) or by clipping
(this deforms the hose).
Assembling the Nylon Hose in the Connection
• Nylon tube (internal radius 8 mm (0.31"), external radius
12 mm (0.47")
1 After cutting, screw the tube coupling sleeve onto the tubing
(left-handed thread), ending approximately 1.5 mm (0.06") in
front of the stop.
2 Oil the tube coupling and screw it into the sleeve.
Make sure that the internal sheathing of the tubing does not
follow while tightening the screw!
Also make sure that the internal sheathing of the tubing is not
squeezed while tightening the screw.
By changing the air bleed nipples from one side to another, it is
possible to install the nylon tube from every desired direction.
ENGLISH
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