Enerpac V-161 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.

• Check all Coupler Connections: Make sure all coupler

connections are complete. Loose or incomplete coupler
connections will cause complete or partial blockage of oil flow.

• Check all Hose Connections: Make sure all hose connections are
properly mated and secured.

• Do Not use excessive closing torque on valve handle or use any handle
extension. This will cause unnecessary wear on valve stem and seat and
may damage the spring.

• Check for Safe System Setups: Make sure that your valve, connecting
hoses, etc. are protected from any external source of damage, such as:
excessive heat, flame, moving machine parts, sharp edges, falling
objects, corrosive chemicals, dripping, etc.

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.

WARNING: USE ONLY RIGID PIECES TO HOLD LOADS.

Carefully select steel or wood blocks that are capable of
supporting the load. Never use a hydraulic cylinder as a shim or
spacer in any lifting or pressing application.

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 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.

Instruction Sheet

Sequence Valve

V-161

L916 Rev. O 02/04

®

®

®

®

®

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.

SEQUENCING VALVE, V-161

a. Connect valve as shown, plumbing "cyl." port to sequenced

cylinder.

b. Adjust Sequence Valve to desired sequencing pressure. Turn

sequence valve handle clockwise to increase pressure, or
counterclockwise to decrease pressure.

VALVE OPERATION (Example)

With sequence valve set at desired pressure (500 psi), close valve
on pump.The main cylinder will extend and the pressure will raise to
the desired sequence pressure (500 psi). The sequence valve will
then open at which point the pressure to both cylinders will increase
until the valve on the pump is returned to neutral, or until system
relief pressure is reached. (Note: the secondary cylinder pressure
will be 500 psi less than main cylinder.) Open valve on pump and
return system pressure to zero. Both cylinders will now retract.

DO NOT use excessive closing torque on valve handle or use any
handle extension. This will cause unnecessary wear on valve stem
and seat and may damage the spring.

Valve handle can be removed (loosen cap screw at end of handle)
to reduce tampering with valve settings. When handles are
reassembled on valve stem, make sure the cap screw is contacting
flat on the stem and the cap screw is tightened securely.

PROTECT YOUR WARRANTY, USE ONLY ENERPAC
HYDRAULIC OIL.

Enerpac Worldwide Locations

✦

e-mail: [e-mail]

✦

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

Africa

ENERPAC Middle East FZE
P.O. Box 18004
Jebel Ali, Dubai
United Arab Emirates
Tel: [phone]
Fax: [phone]

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]
[e-mail]

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:

[e-mail]

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]

Central and Eastern Europe

ENERPAC B.V.
Storkstraat 25
P.O. Box 269, 3900 AG Veenendaal
The Netherlands
Tel: [phone]
Fax: [phone]

France

ENERPAC Une division de
ACTUANT s.a.
B.P. 200
Parc d’Activités
du Moulin de Massy
F-91882 Massy CEDEX France
Tel: [phone]
Fax: [phone]

Germany, Austria, Switzerland,
Russia and CIS (excl. Caspian Sea
Countries) 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 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]

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]

Technical Inquiries Europe:

[e-mail]

Singapore

Enerpac 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]

Technical Inquiries:

[e-mail]

South Korea

Actuant Korea Ltd.
3Ba 717, Shihwa Industrial
Complex, Jungwang-Dong,
Shihung-Shi, Kyunggi-Do
Republic of Korea 429-450
Tel: [phone]
Fax: [phone]

Spain, Portugal

ENERPAC
C/San José Artesano 8
Pol. Ind.
28108 Alcobendas
(Madrid) Spain
Tel: [phone]
Fax: [phone]

Middle East, Turkey ,
Caspian Sea, Greece

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:

[e-mail]

PUMP

GAUGE

V-161
SEQUENCE VALVE

"CYL." PORT

GAUGE

SECONDARY CYLINDER

MAIN CYLINDER

(Circuit 2)

(Circuit 1)