BVA Hydraulics CVS1 - Manual (Page 3)

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Do not pull, position or move system by hydraulic
hose. Use carrying handle or other means of safe
transport.
Do not handle pressurized hoses. Never attempt
to grasp a leaking pressurized hose. Ensure to
release the system pressure before disconnecting
hydraulic hose or connections.
Hydraulic fluid can ignite and burn. Keep hydraulic
equipment away from flames and heat. Excessive
heat will soften seals, resulting in fluid leaks. Heat
also weakens hose materials.
System must be on a stable base which is able to
support the load while pushing or lifting. Use shims,
friction material or constrains to prevent slippage of
the base or load. Ensure cylinder is fully engaged
into/onto adapters, extension accessories.
Center load on cylinder. Distribute load evenly
across the entire saddle surface. Do not off-center
loads on a cylinder. The load can tip or the cylinder
can “kick out”.
Never try to disassemble relief valve, refer repairs
to qualified, authorized personal. Contact BVA
Hydraulics tech service for authorized service
center.
Do not subject hose to sharp objects or heavy
impact.
Hose material or seals must not come in contact
with corrosive materials such as battery acid,
creosote-impregnated objects and wet paint.
Never paint a coupler or hose.
• No alteration shall be made to the valve.
• Use only factory authorized fasteners, accessories
and hydraulic fluid.
Failure to comply with the following warnings
may result in personal injury as well as property
damage.
• Study, understand, and follow all instructions
provided with and on this device before use.
• The user must be a qualified operator familiar with
the correct operation, maintenance, and use of
cylinders.
Wear protective gear when
operating hydraulic equipment.
This device is NOT suitable for use as support
device! As the load is lifted, use blocking and
cribbing to guard against a falling load. Stay clear
of a lifted load before it is properly supported.
Never rely on hydraulic pressure to support a
load.
Crush Hazard. Keep hands and feet
away from cylinder and workpiece
during operation.
• Do not exceed rated capacity of any equipment
in the system. The relief valve is designed for a
max. pressure of 10,000 psi.
• Do not connect to a pump with higher pressure
rating.
• Do not subject the system shock loads (a load
dropped suddenly causing the system pressure
to exceed rated pressure).
The system operating pressure must not exceed
the pressure rating of the lowest rated component
the system. Install a pressure gauge or other load
measuring instrument to monitor the operating
pressure. Burst hazard exists if hose, connection or
any other component in the system exceed its rated
pressure.
Avoid damaging hydraulic hose. Do not allow hose
to kink, twist, curl, crush, cut or bend so tightly that
fluid flow within the hose is blocked or reduced.
Periodically inspect the hose for wear.
!
WARNING
Heavy
ADJUSTING THE PRESSURE SWITCH
The pressure switch is generally used and adjusted with the
pressure regulating valve. A pressure switch can also be
used alone for activating electrical devices such as motors,
solenoids, relays, etc.which are located elsewhere in the
circuit.
1. Loosen the locknut on the pressure switch. Turn the
adjusting screw in the clockwise direction to increase
the pressure setting and counterclockwise to decrease
pressure.
2. Connect the pump power supply and place the control
valve in the ADVANCE position. Set the motor control
toggle switch on RUN.
3. Slowly turn the pressure switch adjusting screw in
counterclockwise direction, decreasing the pressure
setting until the pump motor shuts off. Then tighten the
locknut to lock the adjusting screw.
4. Move the hydraulic flow control valve to the RELEASE
position to relieve the hydraulic pressure. Move the
control valve back to ADVANCE and start the hydraulic
pump again to check the pressure setting. It may be
necessary to make a second fine adjustment.