Installation Instructions
Locate the panel position keeping in mind normal position of crew members while pump-
ing. Use a high-quality marine sealant between panel and bulkhead to prevent leaks.
Mount the separate reservoir with the hose fittings at the bottom. Be sure to leave room
above the removable cap at the top of the reservoir for filling. See Table II for reservoir
capacity and dimensions. If possible, the bottom of the reservoir should be above the pump
as pump suction will be more positive, but this is not essential for satisfactory operation.
Place the reservoir as close to the pump as possible to minimize the effect of pitch and heel.
Installing plumbing.
Connect either hose barb at the bottom of the reservoir with the pump intake hose barb
(#1), using the low pressure hose supplied. Be sure there is a plastic oil filter in this line.
(part # H0-012)
Connect the other hose barb on the bottom of the reservoir with hose barb (#2) on the
back of the panel for the return, using a second low-pressure hose.
A single high-pressure reinforced hose or stainless steel tube (rated for at least 5,000 psi)
must be run from the valve on the central panel to each operating cylinder. High-pressure
hose, cylinders and boom vangs are available from your Navtec distributor.
If the panel is single function the hose or tube runs from fitting (#3).
If multiple function, the hose runs from 1 of 4 ports on 4-way selector valve (#4).
For push-pull cylinders, when a 4-way valve is used (this is different than the 4-way selector
valve), consult your Navtec distributor or Navtec Inc. for plumbing instructions.
For the System 50 with a two speed pump you have two returns to the reservoir. One from
the manifold #2, the second from the pump #6. You will need a “t” fitting. (not included)
Information and advice on
oil and filter.
Navtec recommends the following oils: Shell Tellus T15
®
, Mobil DTE 11M
®
, Texaco Rando
HD215
®
, Royal Purple Syndraulic 15
®
. Never use brake fluid because it will attack the seals.
Oil should be checked periodically for cleanliness. Any particulate matter in the oil will
decrease the life of the moving parts and may also cause malfunctions. The oil filter should
be changed if there is any indication of pump skipping due to oil starvation. If using a
system in cold climates contact Navtec.
1
5
2
4
6
Multi-function/two speed pump
Single function/single speed pump
1
3
5
2
