Enerpac MHV-1 User manual

Repair Parts Sheets for this product are available from the Enerpac
web site at www.enerpac.com, or from your nearest Authorized
Enerpac Service Center or Enerpac Sales office.
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.
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions, warnings and cautions
carefully. Follow all safety precautions to
avoid personal injury or property damage
during system operation. Enerpac cannot be responsible for
damage or injury resulting from unsafe product use, lack of
maintenance or incorrect product and/or system operation.
Contact Enerpac when in doubt as to the safety precautions and
operations. If you have never been trained on high-pressure
hydraulic safety, consult your distribution or service center for a
free Enerpac Hydraulic safety course.
Failure to comply with the following cautions and warnings could
cause equipment damage and personal injury.
A CAUTION is used to indicate correct operating or maintenance
procedures and practices to prevent damage to, or destruction of
equipment or other property.
A WARNING indicates a potential danger that requires correct
procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action may
cause serious injury or even death.
WARNING: Wear proper personal protective gear when
operating hydraulic equipment.
WARNING: Stay clear of loads supported by
hydraulics. A cylinder, when used as a load lifting device,
should never be used as a load holding device. After the
load has been raised or lowered, it must always be blocked
mechanically.
DANGER: To avoid personal injury keep hands and
feet away from cylinder and workpiece during
operation.
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 350 bar [5,000 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.
®
®
Instruction Sheet
MHV-1 Manual Holding Valve
L1664 Rev. A 03/03
Top View
Side View
The modular Holding Valve allows separate operation of
clamping fixtures with a single pressure source. This valve
is ideal for applications when fluid feed lines are
impractical. If system pressure is interrupted, the valve will
hold the pressure beyond the valve. To release system
pressure, rotate the valve handle in either direction 90° to
release and retract system pressure.
Plug
1/8-27 NPT Hydraulic Inlet
1/8-27 NPT
Hydraulic Inlet
Mounting
Holes

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.
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 INSTALLATION
1. The unit can be mounted in any direction. Secure the valve to
any flat surface with two 1/4" mounting bolts.
2. Connect the pressure line from your pressure source to the
hydraulic inlet port on the side of the valve.
3. Connect another line from the hydraulic outlet port at the end
of the valve to your cylinder or tool.
4.0 OPERATION
The valve will hold pressure when the lever arm is pointing to the
"CLOSED" position. It will release pressure when the arm is
turned 90° in either direction to "OPEN". The lever arm will lock in
the "OPEN" position when it is turned past 90°.
Closed
Open Open
Locked open position
Enerpac Worldwide Locations ✦
e-mail:[email protected] ✦ internet:www.enerpac.com
All Enerpac products are guaranteed against defects in workmanship and materials for as long as you own them.
For your nearest authorized Enerpac Service Center, visit us at www.enerpac.com
Australia
ENERPAC, Applied Power
Australia Ltd.
Block V Unit 3
Regents Park Estate
391 Park Road
Regents Park NSW 2143
(P.O. Box 261) Australia
Tel: [phone]
Fax: [phone]
Brazil
Power Packer do Brasil Ltda.
Rua dos Inocentes, 587
04764-050 - Sao Paulo (SP)
Tel: [phone]
Fax: [phone]
Toll Free in Brazil:
Tel: [phone]
[email protected]
Canada
Actuant Canada Corporation
6615 Ordan Drive, Unit 14-15
Mississauga, Ontario L5T 1X2
Tel: [phone]
Fax: [phone]
Toll Free:
Tel: [phone]
Fax: [phone]
Technical Inquiries:
[email protected]
China
Actuant China Ltd.
1F, 269 Fute N. Road
Waigaoqiao Free Trade Zone
Pudong New District
Shanghai, 200 131 China
Tel: [phone]
Fax: [phone]
Actuant China Ltd. (Beijing)
709A Xin No. 2
Diyang Building
Dong San Huan North Rd.
Beijing City, 100028 China
Tel: [phone]
Fax: [phone]
Greece, Central and Eastern
Europe
ENERPAC B.V.
Storkstraat 25
P.O. Box 269, 3900 AG
Veenendaal
The Netherlands
Tel: [phone]
Fax: [phone]
France, Africa
ACTUANT FRANCE S.A.
B.P. 200
Parc d’Activités
du Moulin de Massy
F-91882 Massy CEDEX
(Paris) France
Tel: [phone]
Fax: [phone]
Germany, Austria
ENERPAC
Applied Power GmbH
P.O. Box 300113
D-40401 Düsseldorf
Germany
Tel: [phone]
Fax: [phone]
India
ENERPAC Hydraulics
(India) Pvt. Ltd.
Plot No. A/571
MIDC, TTC Industrial Area
Mahape-400 701
Navi Mumbai, India
Tel: [phone]
Fax: [phone]
Italy
ENERPAC
Applied Power Italiana S.p.A.
Via Canova 4
20094 Corsico (Milano)
Tel: [phone]
Fax: [phone]
Japan
Applied Power Japan Ltd.
1-1-11, Shimomae
Toda-shi
Saitama Pref.
Japan 335-0016
Tel: [phone]
Fax: [phone]
Mexico
Grupo Industrial Baja Tec, S. A. De
C. V.
ATN.
Apdo. Postal # 1 - 147
Admon. # 1, Pachuca, Hidalgo
CP. 42001
Mexico
The Netherlands, Belgium,
Luxembourg, Sweden, Denmark,
Norway, Finland
ENERPAC B.V.
Storkstraat 25
P. O. Box 269, 3900 AG Veenendaal
The Netherlands
Tel: [phone]
Fax: [phone]
[phone]
Russia and CIS
(excl. Caspian Sea Countries)
ENERPAC
Leninsky Prospect 95A
117313, Moscow, Russia.
Tel/Fax: [phone]
Tel/Fax: [phone]
Tel/Fax: [phone]
Mobil: [phone]
Singapore
Actuant Asia Pte. Ltd.
25 Serangoon North Ave. 5
#03-01 Keppel Digihub
Singapore 554914
Thomson Road
P. O. Box 114
Singapore 915704
Tel: [phone]
[phone]
Fax: [phone]
South Korea
ENERPAC
Applied Power Korea Ltd.
163-12 Dodang-Dong
Wonmi-Ku, Buchun-shi
Kyunggi-Do
Republic of Korea
Tel: [phone]
Fax: [phone]
Spain, Portugal
ENERPAC
C/San Jos é Artesano 8
Pol. Ind.
28108 Alcobendas
(Madrid) Spain
Tel: [phone]
Fax: [phone]
Middle East, Turkey
and Caspian Sea
ENERPAC Middle East FZE
P. O. Box 18004
Jebel Ali, Dubai
United Arab Emirates
Tel: [phone]
Fax: [phone]
United Kingdom, Ireland
ENERPAC Ltd., P.O. Box 33
New Romney, TN28 8QF
United Kingdom
Tel: [phone]
Fax: [phone]
USA, Latin America
and Caribbean
ENERPAC
P. O . Box 3241
6100 N. Baker Road
Milwaukee, WI 53209 USA
Tel: [phone]
Fax: [phone]
User inquiries:
[phone]
Distributor inquiries/orders:
[phone]
Technical Inquiries:
[email protected]
06/03
ECM0306044