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Hydraulic Hoists: General Information
NOTE: The hydraulic system diagram and
component descriptions are provided for general
reference. Consult a knowledgeable hydraulics
representative for specific recommendations on
component selection, interconnection, layout, and
best practice.
The pressure rating of the hoist motor is
determined by a) the maximum allowable
pressure at the motor inlet port and b) the
maximum allowable pressure drop across the
motor. Pressure drop is defined as the difference
between the inlet port pressure and the outlet
port pressure at the hoist motor. Exceeding the
maximum inlet pressure may damage the hoist
motor. Exceeding the maximum pressure drop
may cause failure of hoist components.
The recommended operating temperature range
of the hydraulic motor is 100ºF to150ºF (38ºC
to 66ºC). The maximum operating temperature
range is -6ºF to 180ºF (-21ºC to 82ºC). Do NOT
exceed the flow rating of the hydraulic motor.
See the product data sheet for specific hydraulic
specifications.
Installation Final
Check:
• Recheck mounting hardware for
loose bolts, etc...
• Be sure all hydraulic system
components and connections
are correct.
• Be sure all hydraulic connections
are secure.
• Check motor rotation: The drum
should rotate in the direction
indicated by the drum rotation
label on top of the drum support.
If drum rotates in opposite direction,
recheck hydraulic and electrical
connections.
Failure to observe these instructions could
lead to property damage, severe injury, or
death.
• Never exceed the maximum recommended
hydraulic pressure or flow for any of the
components used.
• Always connect the hoist to the hydraulic
system as shown in the hydraulic schematic.
• Always use the correct type of control valve
as shown in the hydraulic schematic.
• Always Stand clear of hydraulic lines
during operation.
• Always install hydraulic components
in accordance with manufacturer's
recommendations.
HYDRAULIC FLUID: The hydraulic fluid used
with the hoist must be an extreme pressure,
anti-wear hydraulic oil with oxidation and
corrosion inhibitors. It must contain a foam
suppressant, and have a viscosity rating of
100-300 SUS at 60ºF to 115ºF (15ºC to 46ºC).
The recommended nominal filtration level is 10
microns or finer.
MOTOR
10
WARN Industrial Hoists
WARNING
Hydraulic Schematic
CONTROL VALVE
3-POSITION, 4-WAY,
SPRING RETURN
(CYLINDER SPOOL)
CUSTOMER SUPPLIED
COMPONENTS
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