Gardner Bender HYDRAULIC HAND PUMPS AND CYLINDERS - Manual

Gardner
Bender
IMPORTANT: RECEIVING INSTRUCTIONS: Visually inspect
all components for shipping damage. If any shipping damage is
found, notify carrier at once. Shipping damage is NOT covered by warranty. The carrier is
responsible for all repair or replacement costs resulting from
damage in shipment.
Instruction
Sheet
HYDRAULIC
HAND PUMPS
AND CYLINDERS
IMPORTANT—USER SAFETY AND PROTECTION: In setting up systems to fit your operations, care must be taken to select the
proper components and design to insure appropriate integration with your operations and existing equipment and that all safety
measures have been taken to avoid the risk of personal injury and property damage from your application or system.
GB ELECTRICAL CANNOT BE RESPONSIBLE FOR DAMAGE OR INJURY CAUSED BY UNSAFE USE, MAINTENANCE OR
APPLICATION OF ITS PRODUCTS. Please contact GB ELECTRICAL for guidance when you are in doubt as to the proper safety
precautions to be taken in designing and setting up your particular application. To protect your warranty use only GB/Enerpac
hydraulic oil.
Make sure that the highest level of system pressure does not exceed
the lowest pressure rating of any component within the system.
The following general instructions and guides will be helpful to
determine if your system components are properly connected.
• Be sure all hydraulic connections, hoses, and fittings are rated for
the highest pressure your system is capable of generating. Always
use hoses and tubing recommended by the hydraulic component
manufacturer.
• Be sure all connections are fully tightened. Seal all pipe connections
with a high-grade pipe thread sealer.
Teflon tape is an excellent thread
sealer. If it is not properly applied,
however, pieces may enter the
hydraulic system and cause malfunctions and damage. Use 1 1 /
2
wraps of tape on each thread. Cut off all loose tape ends.
• All connections should be snug and leak-free.
Excessive tightening will strain
threads and castings which could
cause fitting failure at pressures
below rated capacity. DO NOT over-tighten any connections.
• Fully tighten hydraulic couplers (avoid excessive force).
Loose couplers will act as a
partial or complete line restriction,
causing little or no oil flow and
resulting in equipment damage or failure.
• Be sure all hydraulic hoses and fittings are connected to the correct
inlet and outlet ports of the pump, cylinder, valves, and other
system connections.
PUMP SELECTION
All hydraulic cylinders must be properly connected to the source of
hydraulic oil to operate. This source is generally a hand-operated or
power-operated pump. The choice of pump will depend upon the
requirements of your application. GB has pumps to match cylinders for
your applications.
Use the correct pump for the cylinder you have.
! CAUTION
! CAUTION
! CAUTION
RECOMMENDATION: Use
hydraulic gauges which indicate safe
operating loads in each hydraulic
system. Gauges are available for use
with all hydraulic components (some
gauges have a colored band to
indicate load ranges for each
cylinder.) DO NOT exceed the safe
limit of the lowest rated component
used within your system.
DO NOT DROP HEAVY OBJECTS
ON HOSE
A sharp impact may
bend or break
internal hose wire
strands. Applying
pressure to the
damaged hose will
cause internal
flexing which will eventually break the
hose strands, rupturing the hose.
DO NOT use the hydraulic hose to
carry a hydraulic component (pumps,
cylinders, and valves).
DO NOT OVERLOAD CYLINDER
Never attempt to lift
a load which
exceeds the
capacity of a
cylinder or jack.
Overloading causes
equipment failure and possible
personal injury.
OFF-CENTER LOADS
Avoid situations
where loads are not
directly centered on
the cylinder
plunger. Off-center
loads produce
considerable strain on cylinder
plungers and may slip or fall, causing
potentially dangerous results. Avoid
point loading–distribute loads evenly
across the entire saddle surface.
DO NOT OVEREXTEND CYLINDER
The cylinder will
take full load on the
plunger stop ring.
However, using the
full stroke does not
supply power and
only adds
unnecessary strain to the cylinder.
AVOID SHARP BENDS AND KINKS
IN HOSE
Avoid sharp bends
and kinks when
routing hydraulic
hoses. If pressure is
applied to a bent or
kinked hose, the oil
flow will be
restricted, causing sever back-
pressure. Also, the sharp bends and
kinks will internally damage the hose,
leading to premature failure.
KEEP HYDRAULIC EQUIPMENT
AWAY FROM FLAMES AND HEAT
Excessive
heat
(above
150° F) will
soften
packings
and seals,
resulting in fluid leaks. Heat also
weakens hose materials and
packings. For optimum performance
DO NOT expose equipment to
temperatures of 150° F or higher.
PROVIDE ADEQUATE
CLEARANCE
Always provide
clearance for
hoses and
couplers to
avoid moving
objects,
abrasion, or
sharp objects.