Diamond Products CB18BV-XL - Manual (Page 22)

with the flow control set to zero. This
unloads the unit yet circulates the oil
through the cooling system. The rate of
cooling will depend on the ambient
temperature.
Some control valves at the external tool
may create backpressure and heat even
when off. It is best to set the flow control to
zero or shut the power unit down to avoid
heating and conserve energy.
IMPORTANT: Monitor the thermometer
at the top of the hydraulic tank.
Maximum recommended oil
temperature is 180 degrees Fahrenheit
(82 deg C).
Shutting Down:
 Shift the flow control valve to zero to
unload the system.
 Turn the key to the off position.
IMPORTANT: The red emergency stop
button at the front panel will
immediately stop the engine and
radiator fan. Hydraulic pressure and
flow will go to zero. This button must
be in the out position to start the
engine.
OPERATING DRIVEN
EQUIPMENT
The operator must know the hydraulic
requirements and limitations of the driven
equipment and the appropriate
adjustments must be made on the controls.
The introduction of other control devices
may cause system heating or may render
the system inoperative.
IMPORTANT: This power unit is
equipped with a positive displacement
gear pump. All tools must be equipped
with a control valve that shunts flow
directly to return ports when not in use.
Blocking oil flow or abruptly
disconnecting the tool can send flow
over relief and potentially overheat the
system.
Instructions supplied with the driven
equipment must be followed to ensure
correct connection and operation of each
individual piece of equipment. Equipment
supplied by Diamond Products will be
capable of being connected correctly and
will be compatible with this power unit,
providing neither has been modified from
original factory configuration. With
equipment of other manufacturers, it will be
necessary to determine the following:
 Correct direction of flow through the
equipment.
 Correct pressure and flow required by
the equipment.
 Compatibility of any valves or circuitry
and quick disconnects. Some hand-
held equipment uses a trigger control,
which is operated frequently. These
valves must be of the open center type
for correct operation.
IMPORTANT: The quick disconnects
must be clean when connecting hoses
and devices. Dirty connections may
result in contamination and premature
failure of system or tool components.
MAINTENANCE
INSTRUCTIONS
 Oil Filter: change the filter when
indicated by the gage at the filter.
 Oil Change: establishing an oil analysis
program is the preferred method of
determining oil condition and when to
change it. If the oil is kept clean, dry,
and operated at moderate
temperatures, it can last for several
years. With no analysis program an oil
change every 200 hours is
recommended. See the section
Hydraulic Fluid for specifications. A ½”
pipe thread oil drain port is at the
bottom of the hydraulic tank.
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