Enerpac PMU-Series - Manual (Page 2)

2
WARNING: Do not exceed equipment ratings. Never
attempt to lift a load weighing more than
the capacity of the cylinder. Overloading causes
equipment failure and possible personal injury. The
cylinders are designed for a max. pressure of 700 bar [10,000
psi]. Do not connect a jack or cylinder to a pump with a
higher pressure rating.
Never set the relief valve to a higher pressure than
the maximum rated pressure of the pump. Higher
settings may result in equipment damage and/or
personal injury.
WARNING: The system operating pressure must not
exceed the pressure rating of the lowest rated
component in the system. Install pressure gauges in
the system to monitor operating pressure. It is your window
to what is happening in the system.
CAUTION: Avoid damaging hydraulic hose. Avoid
sharp bends and kinks when routing hydraulic hoses.
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 hose. A sharp
impact may cause internal damage to hose wire
strands. Applying pressure to a damaged hose
may cause it to rupture.
IMPORTANT: Do not lift hydraulic equipment by the
hoses or swivel couplers. Use the carrying handle or
other means of safe transport.
CAUTION: Keep hydraulic equipment away from
flames and heat. Excessive heat 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 65°C [150°F] or higher. Protect hoses and cylinders from
weld spatter.
DANGER: Do not handle pressurized hoses. Escaping
oil under pressure can penetrate the skin, causing
serious injury. If oil is injected under the skin, see a
doctor immediately.
WARNING: Only use hydraulic cylinders in a coupled
system. Never use a cylinder with unconnected
couplers. If the cylinder becomes extremely
overloaded, components can fail catastrophically causing
severe personal injury.
WARNING: BE SURE SETUP IS STABLE BEFORE
LIFTING LOAD. Cylinders should be placed on a
flat surface that can support the load. Where
applicable, use a cylinder base for added stability. Do
not weld or otherwise modify the cylinder to attach a base or
other support.
Avoid situations where loads are not directly centered
on the cylinder plunger. Off-center loads produce
considerable strain on cylinders and plungers. In
addition, the load may slip or fall, causing potentially
dangerous results.
Distribute the load evenly across the entire saddle
surface. Always use a saddle to protect the plunger.
IMPORTANT: Hydraulic equipment must only be
serviced by a qualified hydraulic technician. For
repair service, contact the Authorized ENERPAC
Service Center in your area. To protect your warranty, use
only ENERPAC oil.
WARNING: Immediately replace worn or damaged
parts by genuine ENERPAC parts. Standard grade
parts will break causing personal injury and property
damage. ENERPAC parts are designed to fit properly and
withstand high loads.
3.0 SPECIFICATIONS — See succeeding tables.
CAUTION: To help prevent pump failure, check
reservoir fluid level prior to pump operation. Add oil
to maintain level 1 inch below fill plug opening.
CAUTION: To prevent damage to electric pump motor,
check specifications above and motor data plate. Use
of incorrect power source will damage the motor.
4.0 INSTALLATION
1. Check oil level in reservoir. Oil level should be 1 inch
below vent/fill plug opening. (See “6.1 Adding Oil to the
Pump.”)
2. Vent reservoir by turning vent/fill plug 1 to 2 turns
counter-clockwise from fully closed position.
CAUTION: Reservoir must be vented whenever pump
is running. If not, vacuum may develop in reservoir
preventing the flow of oil through
the pump.
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SPECIFICATIONS PUMPS FOR SINGLE-ACTING TORQUE WRENCHES
Model PME10022 PME10027
Electrical Power Source 220V, 1-phase, 50/60 Hz 115V, 1-phase, 50/60 Hz
Motor Rating 0.37 kW Universal, 4 Amps 1/2 HP Universal, 9 Amps
@10,000 PSI (700 Bar) / 85-89 dBA @10,000 PSI (700 Bar) / 85-89 dBA
Shipping Weight 19 kg (42 lbs) includes packaging
Operating Pressure Up to 800 Bar/ 11,600 PSI
Flow vs. Pressure 3.3 L/min @0-50 Bar / 0.3 L/min @800 Bar
200 In3/min @0-700 PSI/18 In3/min @11,600 PSI
Max. Temperature of Oil 65°C (150° F)
Reservoir Capacity 2.8 L (0.75 Gal) total /1.9 L (0.50 Gal) usable