Enerpac AMGC41 User manual

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Table of content
1.0 IMPORTANT RECEIVING INSTRUCTIONS ....................1
2.0 SAFETY............................................................................1
3.0 DESCRIPTION .................................................................2
4.0 INSTALLATION ................................................................3
5.0 OPERATION.....................................................................3
6.0 MAINTENANCE ...............................................................3
1.0 IMPORTANT RECEIVING INSTRUCTIONS
Visually inspect all components for shipping damage. Shipping
damage is not covered by warranty. If shipping damage is found,
notify carrier at once. The carrier is responsible for all repair and
replacement costs resulting from damage in shipment.
2.0 SAFETY
2.1 Introduction
Read all instructions carefully. Follow all recommended safety
precautions to avoid personal injury as well as damage to the
product and/or damage to other property. Enerpac cannot be
responsible for any damage or injury from unsafe use, lack of
maintenance or incorrect operation. Do not remove warning
labels, tags, or decals. In the event any questions or concerns
arise, contact Enerpac or your local Enerpac distributor for
clarification.
If you have never been trained on high-pressure hydraulic
safety, consult your distributor or service center for information
about an Enerpac Hydraulic Safety Course.
This manual follows a system of safety alert symbols, signal
words and safety messages to warn the user of specific hazards.
Failure to comply with these warnings could result in death or
serious personal injury, as well as damage to the equipment or
other property.
The Safety Alert Symbol appears throughout this
manual. It is used to alert you to potential physical
injury hazards. Pay close attention to Safety Alert
Symbols and obey all safety messages that follow this symbol
to avoid the possibility of death or serious personal injury.
Safety Alert Symbols are used in conjunction with certain
Signal Words that call attention to safety messages or property
damage messages and designate a degree or level of hazard
seriousness. The Signal Words used in this manual are
WARNING, CAUTION and NOTICE.
WARNING Indicates a hazardous situation that, if not
avoided, could result in death or serious
personal injury.
CAUTION Indicates a hazardous situation that, if not
avoided, could result in minor or moderate
personal injury.
Indicates information considered important,
but not hazard related (e.g. messages relating
to property damage). Please note that the
Safety Alert Symbol will not be used with this
signal word.
2.2 Safety Precautions
WARNING
Failure to observe and comply with the following precautions
could result in death or serious personal injury. Property
damage could also occur.
• Read and completely understand the safety precautions
and instructions in this manual before operating the puller or
preparing it for use.
• Wear appropriate personal protective equipment (PPE) such
as safety glasses and face shield. The operator must take
precautions against injury due to flying debris caused by
possible failure of the tool or workpiece.
• Do not exceed equipment ratings. Overloading causes
equipment failure and possible personal injury. The manifolds
are designed for a max. pressure of 10,150 psi [700 bar]. Do
not connect a jack or cylinder to the manifold with a higher
pressure rating.
• During operation, keep hands and fingers away from the
work area to avoid personal injury.
• Use hydraulic pressure gauges to verify proper operating
pressure in the hydraulic system. Do NOT exceed maximum
pressure limits of the lowest rated component in your system.
Always use high pressure hoses and fittings.
• The system operating pressure must not exceed the pressure
rating of the lowest rated component in the system. Check
the pressure in the gauges in the system to monitor operating
pressure. It is your window to what is happening in the system.
• Always read, understand and follow all safety precautions
and instructions, including those that are contained within the
procedures of this manual.
• On double-acting cylinders be certain that hoses are
connected at BOTH couplers. Never attempt to pressurize a
double-acting cylinder if only one hose is connected.
• Fully hand-tighten all couplers. Loose coupler connections
will block the fl ow of oil between the pump and the cylinder.
• Hand-tighten adapters and attachments until full thread
engagement occurs and the item can no longer be turned by
hand. Do not use tools.
Instruction Sheet
AMGC41 & AMGC42 Manifolds
L4435 Rev.A 02/20 EN

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2.3 Additional Hydraulic Safety Precautions
WARNING
Failure to observe and comply with the following precautions
could result in death or serious personal injury. Property
damage could also occur.
• Do not remove or disable the pump relief valve. Never set
the relief valve to a higher pressure than the maximum rated
pressure of the pump.
• To avoid personal injury and equipment damage, make sure
all hydraulic components are rated for at least 10,150 psi [700
bar] working pressure.
• The system operating pressure must not exceed the pressure
rating of the lowest rated component in the system. Install
pressure gauge(s) in the system to monitor operating pressure.
It is your window to see what is happening in the system.
• Make sure that all system components are protected from
external sources of damage, such as excessive heat, flame,
moving machine parts, sharp edges and corrosive chemicals.
• Do not handle pressurized hoses. Escaping oil under pressure
can penetrate the skin. If oil is injected under the skin, see a
doctor immediately.
• Always do a visual inspection of the system before placing
it into operation. If any problems are found, do not use the
manifolds. Have the equipment repaired and tested before it
is returned to service.
• Never use a manifold that is leaking oil. Do not use a manifold
that is damaged, altered or in need of repair.
• Do not loosen plugs, relief valves or any other hydraulic
components unless hydraulic pressure is completely relieved.
• Always be sure that hydraulic pressure is fully relieved before
disconnecting hydraulic hoses, loosening hydraulic couplers,
or performing any cylinder disassembly or repair procedures.
• Always read, understand and follow all safety precautions
and instructions, including those that are contained within the
procedures of this manual.
• Shut O valves should always be closed when no hydraulic
hoses are being used on those valves.
CAUTION
Failure to observe and comply with the following precautions
could result in minor or moderate personal injury. Property
damage could also occur.
• Do not lift hydraulic equipment by the hoses or swivel
couplers. Use the carrying handle or strap.
• 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 150˚F [65˚C] or higher. Protect all hydraulic
equipment from weld spatter.
• Immediately replace worn or damaged parts with genuine
Enerpac parts. Enerpac parts are designed to fit properly and
to withstand high loads. Non-Enerpac parts may break or
cause the product to malfunction.
• Hydraulic equipment must only be serviced by a qualified
hydraulic technician. For repair service, contact the Enerpac
Authorized Service Center in your area.
• To help ensure proper operation and best performance, use of
Enerpac oil is strongly recommended.
• Use dust cap(s) when manifolds is disconnected from the
hose(s). Keep the entire manifolds clean to prolong its life.
3.0 DESCRIPTION
Portable assembly of hydraulic manifolds for single acting or
double acting cylinders up to 10,150 psi [700 bar] of pressure.
Split flow for up to 4 multi point lifting.
The manifolds have the following main elements (Refer to Figure
1, 2 & 3 for references):
1. Shut-Off valve: This valve allows to the operator open or
close the flow to the output.
2. Manometer: Every output is supplied with a manometer up
to 10,150 psi [700 bar] of pressure. The operator can check
the pressure in the outlet line.
3. Manifold outlet A: Oil flow outlet that must be connected to
the cylinder.
4. Manifold inlet P: Oil flow inlet. The HPU outlet must be
connected to this point.
5. Manifold inlet T: For double acting pumps, the HPU returning
line must be connected to this inlet.
6. Manifold outlet B: For double acting cylinders, this outlet
must be connected to the returning oil flow of the cylinder
(i.e. the small chamber for general purpose cylinders).
1
2
3
4
12
3
6
5
4
AMGC41 MANIFOLD AMGC42 MANIFOLD
KEY:
1. Shut-Off Valve
2. Manometer
3. Cylinder big chamber outlet *
4. Oil pressure line inlet
5. Returning flow inlet
6. Cylinder small chamber outlet *
* For general purpose cylinders
Figure 1, Manifolds Main Components

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In the previous paragraphs the points 5 & 6 refers only to the
manifold AMGC42. This manifold is installed for double acting
cylinders for returning oil flow purposes.
4.0 INSTALLATION
For the installation see the following steps
AMGC41:
1. Connect the hydraulic pump pressure line to the inlet P.
Refer to Figure 2
2. Connect each outlet A to the single acting cylinder coupler.
3. Fully hand-tighten all couplers. Loose coupler connections
will block the flow of oil between the pump and the cylinder
AMGC42:
1. Connect the hydraulic pump pressure line to the inlet P.
Refer to Figure 3
2. Connect each outlet A to the double acting cylinder in the
big chamber coupler (general purpose cylinder case).
3. Connect each outlet B to the double acting cylinder in the
small chamber coupler (general purpose cylinder case).
4. Connect the hydraulic pump return line to the inlet T.
5.0 OPERATION
Operate the hydraulic pump to advance and retract the cylinder.
The manifolds are designed to work up to 4 single or double
acting cylinders.
Turn the shut-off valves in the clockwise direction in order to
close completely the oil flow. Refer to Figure 4.
P
T
A
B
6.0 MAINTENANCE
Use the following advises when long term storage:
1. Use only Enerpac oil with the manifolds. The use of any
other oil may invalidate your warranty.
2. Use dust cap(s) when manifold is disconnected from the
hose(s). Keep the entire manifold clean to prolong its life.
3. Store manifold in a clean and dry place.
4. Spread metallic parts with wax oil. This will help protect the
manifold from corrosion.
Figure 4, Closing the shut valve
Figure 3, Connections Scheme for the AMGC42 Manifold
Figure 2, Connections Scheme for the AMGC41 Manifold
P
A

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