HYDRAULIC COMPONENTS (cont’d)
protection against pump and motor wear. They also provide good demulsibility as
well as protection against rust.
2. Automotive type crankcase oils having letter designation "SC", "SD" or "SE".
These oils in the 10W viscosity range are excellent for severe hydraulic service
where there is little or no water present.
4.6. HYDRAULIC CIRCUIT
In order to cool the brake and remove contaminants, oil is normally circulated through
the brake housing by means of internal circulation which leaves from port "Q". The
hose from port "Q" may be a low pressure hose with "push on" fittings and must go
directly to the reservoir. Port "Q" should be located within 15 degrees of top dead
center, to ensure that the housing is filled with oil at all times.
The basic hydraulic schematic illustrated is for all applications. Review "PAY OUT
APPLICATIONS" to determine whether external oil circulation is required for your
installation.
Figure 2
**NOTE:** Configuration of external brake port shown above on Figure 2 coincides with Trouble Shooting in
Section 8. For any other brake release configurations, parts of Section 8 may not
apply.
The hydraulic schematic in Figure 2 shows a partial flow micro-filter being used to both filter
the oil and create back pressure to cause circulation through the brake housing.
The filter should be installed close to the reservoir and the circulating line to port "P" should be
connected from a point close to the oil filter as shown. Port "Q" should be connected directly
to the reservoir as shown (below the oil level).
LANTEC Product Support - Installation and Maintenance Manual
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