4. HYDRAULIC COMPONENTS
Basic components to be used with the winch (not supplied by LANTEC):
4.1. PUMP
The pump used with the winch should be capable of producing the volume of oil at the
rated pressure shown for each model in section 1.1. WINCH SPECIFICATIONS.
4.2. CONTROL VALVE
The control valve used to operate this winch should be a four-way, spring return to
neutral, open center valve having a motor spool, eg. all work ports must be open to the
reservoir when the valve spool is in the neutral position. This control valve should have
good metering characteristics in order to provide smooth winch control and have a
built-in relief valve suitable for the maximum operating pressure.
When the winch control valve is to be installed between the pump and an existing
control valve, it will be necessary to use a control valve for the winch which has a "high
pressure carryover" or "power beyond" port.
4.3. HOSES
In order to maintain maximum efficiency in the winch, select the size of hydraulic lines
according to the maximum volume oil to be used in the winch (see table). If the
hydraulic lines used are too small, they may cause excessive back pressure at the
reverse motor port sufficient to release the brake.
ø1.50” / [ø38mm]ø1.25” / [ø32mm]45-69 gpm / [170-264 l/min]
ø1.75” / [ø44mm]ø1.50” / [ø38mm]70-94 gpm / [265-359 l/min]
ø2.25” / [ø57mm]ø2” / [ø51mm]95-140 gpm / [360-530 l/min]
Return Lines Inside DiameterPressure Lines Inside diameterOil Flow (gpm) / [l/min]
HOSE REQUIREMENTS
Line from Port “Q” - ø3/4” / [ø19mm] minimum.
The sizes shown in the table are to be used as a guide only. If trouble is experienced due to the use of
long hoses, it will be necessary to use hoses which are one size larger.
4.4. FILTER
When these winches are installed with their own hydraulic system or when there is no
filter in the existing circuit, a partial flow micro-filter should be installed between the
control valve and the reservoir. This should trap particles over 10 microns in size.
4.5. HYDRAULIC OILS
LANTEC makes the following recommendations concerning hydraulic oils:
1. Anti-wear type hydraulic oils. These oils are generally developed and evaluated on
the basis of pump wear tests such as ASTM-D2882. These oils offer superior
LANTEC Product Support - Installation and Maintenance Manual
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