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172 REV.030429
RECOMMENDATIONS
HYDRAULIC FLUID:
The hydraulic fluid selected for use with PULLMASTER
planetary winches should be a high grade, petroleum
based fluid, with rust, oxidation and wear resistance.
Fluid cleanliness and operating viscosity are critical to
winch reliability, efficiency and service life.
For optimum performance, the recommended viscosity
range at operating temperature is 81 - 167 SUS (16 - 36
CS). For extreme operating conditions of short duration,
the maximum viscosity range of 58 - 4635 SUS (10 -
1000 CS) should not be exceeded.
For optimum performance, the winch recommended
hydraulic fluid temperature operating range is 80 - 150F
(27 - 66 C). For extreme operating conditions of short
duration, the maximum temperature range of -5 - 180F
(-21 - 82 C) should not be exceeded.
LUBRICATION:
The winch gear train requires oil bath lubrication. The
winch is shipped from the factory without lubricating oil.
IMPORTANT: ADD LUBRICATING OIL BEFORE
RUNNING WINCH.
Refer to INSTALLATION DRAWING for location of
lubricating oil fill port. Refer to APPENDIX A for quantity
of oil required. For normal operating temperatures use
SAE 90 lubricating oil. Consult lubricating oil supplier or
factory for temperature beyond normal operating range.
HYDRAULIC PUMP:
For maximum performance of the PULLMASTER
planetary winch, the hydraulic pump must supply the
maximum flow of hydraulic fluid at the hydraulic pressure
stated in SPECIFICATIONS.
HYDRAULIC CONTROL VALVE:
The standard control valve used for operation of the
PULLMASTER planetary winch must have a four-way,
spring return to neutral feature, which provides for open
flow from the pressure ports of the winch to the reservoir
in neutral position of the control (motor spool). It is
important to point out that good speed control, especially
when lowering a load, depends on the "metering"
characteristics of the control valve. The better the oil
flow is "metered" the better will be the speed control.
HYDRAULIC PRESSURE RELIEF:
The hydraulic circuit for the PULLMASTER planetary
winch requires a pressure relief set at the operating
pressure (see SPECIFICATIONS). Usually, a pressure
relief is part of the hydraulic control valve. Where this is
not the case, a separate pressure relief valve must be
installed and set at the recommended maximum pressure.
HYDRAULIC RESERVOIR:
It is recommended that the hydraulic reservoir has
sufficient capacity to provide good heat dissipation in
order to prevent over-heating of the hydraulic fluid. The
hydraulic reservoir should be made from clean and
scale-free material to prevent contamination of the
hydraulic fluid. In order to prevent air from being mixed
with the hydraulic fluid, the reservoir should have an
over-flow baffle separating the return lines from the
suction line and all return lines should enter the reservoir
below the fluid level. The reservoir should be mounted
close to and above the hydraulic pump in a location
which provides for free air circulation around the reservoir.
HYDRAULIC HOSES:
The following hydraulic hoses are recommended for
maximum efficiency of the PULLMASTER Model R5
planetary winch:
Pressure lines:
Equivalent to SAE 100R12-12
Hydraulic freespool line:
Equivalent to SAE 100R3-3
It is recommended that a larger size of hydraulic hose is
installed where the pressure lines or the circulation lines
are excessively long.
HYDRAULIC FILTER:
Hydraulic filter recommendations for the hydraulic circuit
of the PULLMASTER planetary winch, based on a return
line filter, are given as follows:
Average atmosphere:
10 microns
Dusty atmosphere:
5 microns
In order to prevent accidental stoppage of the return line
flow, the oil filter should have a by-pass feature.
USE OF AN E STOP:
The use of an E stop (emergency) is mandatory in the
controls circuit, the E stop is to be placed in the
operators control panel. The E stop has to be designed
and placed in line with EN 60204 and EN 418.
