2
skid safety shoes, hard hat, and hearing protection (used
as appropriate for the conditions) will reduce the chance of
personal injuries. The use of these items may also be required
by local regulations or laws.
• Do not handle pressurized hoses. Escaping oil under pressure
can penetrate the skin. If oil is injected under the skin, see a
doctor immediately.
• Do not pressurize disconnected couplers.
• Only use hydraulic cylinders in a coupled system. Never use
a cylinder with uncoupled couplers. If the cylinder becomes
extremely overloaded, components can fail catastrophically,
causing severe personal injury.
• The pump is equipped with a hydraulic safety relief valve that
is factory preset to the pump's maximum operating pressure.
DO NOT attempt to adjust, bypass or alter the safety relief
valve. This valve is not user-adjustable.
• The system operating pressure must not exceed the pressure
rating of the lowest rated component in the system. Refer to
Section 4.1 of this manual for the maximum rated working
pressure for your pump model.
• Install pressure gauge(s) in the system to monitor operating
pressure. It is your window to see what is happening in the
system.
• Never set the pump hydraulic pressure to a higher setting than
the maximum rating of the hoses and connected devices.
The pressure setting should not exceed the setting of the
lowest rated component (pump, cylinder or other hydraulic
component) in the circuit.
• Do not exceed equipment ratings. Overloading may cause
equipment failure and possible personal injury.
• Always perform a visual inspection of the pump before placing
it into operation. If any problems are found, do not use the
pump. Have the pump repaired and tested before it is returned
to service.
• Fill the pump reservoir with hydraulic oil only to the
recommended level. Fill only when cylinders (or other hydraulic
actuators) are in their normal de-energized position.
• Never use the pump if it is leaking oil. Do not use the pump if it
is damaged, has been altered or is in need of repair.
• Always lift the pump using only the provided lifting handles.
• Allow only trained and experienced personnel to operate the
pump.
• Be certain that hydraulic pressure is fully relieved from the
cylinder (or other hydraulic actuator) before disconnecting
hydraulic hoses, loosening hydraulic fi ttings, or performing
any disassembly or repair procedures.
• If hydraulic equipment is damaged, do not touch or go near
any area where high-pressure oil is spraying. Promptly stop
usage of the hydraulic equipment and replace the damaged
parts with new ones before using the equipment again.
• Do not put your hands or body in line with the face of a
disconnected coupler. If the coupler becomes pressurized and
leakage occurs, the high-pressure oil stream could penetrate
the skin.
• Skin penetration from high-pressure hydraulic oil can result in
death or serious personal injury. If oil is injected under the skin,
see a doctor immediately.
CAUTION
Failure to observe and comply with the following precautions
could result in minor or moderate personal injury. Property
damage could also occur.
• Be careful to avoid damaging hydraulic hoses. Avoid sharp
bends and kinks when routing hydraulic hoses. Do not
exceed the minimum bend radius specifi ed by the hose
manufacturer. Using a bent or kinked hose will cause severe
back-pressure. Sharp bends and kinks will internally damage
the hose, leading to premature hose failure.
• Do not drop heavy objects on hoses. A sharp impact may
cause internal damage to hose wire strands. Applying
pressure to a damaged hose may cause it to rupture.
• Do not lift hydraulic equipment by the hoses or couplers.
• Make sure that all system components are protected from
external sources of damage, such as moving machine parts,
sharp edges and corrosive chemicals.
• Keep hydraulic equipment away from fl ames. Flames near
a hydraulic oil leak could cause the hydraulic oil to ignite,
resulting in a fi re.
• For optimum performance, do not expose hydraulic
equipment to temperatures of 150˚F [65˚C] or higher.
Excessive heat will soften packings and seals, resulting in
possible hydraulic fl uid leaks.
• Protect all hydraulic equipment from weld spatter.
• Protect the pump against rain, mud, dust, and humidity
when using it outdoors.
• Disconnect air supply hose when pump is not in use for
a prolonged period of time. NEVER remove a swivel air
connector while the air hose is pressurized.
• Immediately replace worn or damaged parts with genuine
Milwaukee Cylinder parts. Milwaukee Cylinder parts are
designed to fi t properly and to withstand high loads. Non-
Milwaukee Cylinder parts may break or cause the product
to malfunction.
NOTICE
• Hydraulic equipment must only be serviced by a qualifi ed
hydraulic technician. For repair service, contact Milwaukee
Cylinder customer service representative.
• To help ensure proper operation and best performance, use
only genuine Enerpac hydraulic oil.
2.3 Additional Safety References
Consult the applicable industry and/or government standards
in your country or region for additional safety precautions and
work rules applicable to hydraulic pumps, hydraulic devices
and related components.
3.0 PRODUCT DESCRIPTION
The Milwaukee Cylinder DuroTech Series Air Driven Hydraulic
Pump is intended for high-use, high-fl ow industrial applications.
Three diff erent maximum pressure ratings are available to suit
a wide variety of user requirements.
Each valve manifold contains four stations, allowing for up to
four control valves to be installed. Control valves are available
from Milwaukee Cylinder or Enerpac (sold separately).
The dual action pump element combines smooth operation
with maximum durability. A built in air fi lter/regulator allows
easy adjustment of pump hydraulic pressure and helps protect
the pump air components from containments.
The large 1.8 gallon [6.8 liter] hydraulic reservoir provides
ample oil capacity to power multiple hydraulic devices.
A removable metal shroud allows easy access to the pump
element for routine inspection and maintenance activities.
