Enerpac JH Premium Bedienungsanleitung

CONTENTS:

IMPORTANT RECEIVING INSTRUCTIONS:

DESCRIPTION:

English (EN) ....................................................................1-4

Deutsch (DE) ..................................................................5-10

Français (FR) .................................................................11-16

Español (ES) .................................................................17-22

Italian (IT) ....................................................................23-28

Nederlands(NL)...............................................................29-33

Visually inspect all components for shipping damage. If any shipping damage is found, notify carrier

at once. Shipping damage is NOT covered by warranty. The carrier is responsible for all repair or

replacement costs resulting from damage in shipment.

50 and 100

Ton

Document Number Document Revision Document Revision Date

L2009 C 11/2017

AJack Base D1 Jack Beam (Speed Pump) GAir Vent/Fill Plug

BPlunger D2 Jack Beam (Load Pump) HLoad Gauge

CRelease Valve EJack Handle IGauge Port

DJack Beam FRelease Valve Wrench

JH Premium

Steel Hydraulic Jacks

Instruction Sheet

E D

JH-1.5 - JH-20 JH-306 - JH-1006

SAFETY INFORMATION

To avoid personal injury or property damage during system operation, read and follow all

CAUTIONS, WARNINGS, and INSTRUCTIONS included with or attached to each product.

ENERPAC CANNOT BE HELD RESPONSIBLE FOR DAMAGE OR INJURY RESULTING FROM

UNSAFE USE OF PRODUCT, LACK OF MAINTENANCE, OR INCORRECT PRODUCT AND SYSTEM

APPLICATION. Contact Enerpac when in doubt as to applications and safety precautions.

WARNING

JH jacks are NOT equipped with a stop ring to

retain the plunger. To prevent plunger

over-extension, a port is provided to vent the

oil out of the cylinder as the plunger reaches the

maximum stroke. When the RED LINE around the

plunger becomes visible, the plunger is at

maximum extension. Further extension could result

in the plunger being forced out of the cylinder.

WARNING

To avoid personal injury, always wear proper personal protective gear when operating

hydraulic equipment, i.e. safety glasses, gloves, etc.

WARNING

Make sure that jacks are protected from external sources of damage, such as

explosive heat, ﬂame, moving machine parts, sharp objects, and corrosive chemicals.

DO NOT expose equipment to temperatures above 150°F (65°C).

CAUTION

Use only Enerpac hydraulic ﬂuid. DO NOT use brake or synthetic ﬁre resistant ﬂuids

because they will damage the jack seals.

WARNING

Provide a solid and level foundation

adequate to support the load being lifted.

WARNING

Position the jack to distribute the load over the

entire base of the jack. The jack plunger must be

centered in the line of force of the load as it is being

lifted.

WARNING

Stay clear of loads supported by hydraulics.

Jacks are lifting devices ONLY. After the load has

been raised, it should be blocked, using material

capable of supporting the load.

WARNING

DO NOT exceed rated stroke. If you need to lift a

load further, support the load, raise the level of the

jack with a sturdy support and then continue the

lift.

WARNING

DO NOT lift a load which exceeds the capacity of

the jack. The load rating is marked on the jack

nameplate.

WARNING

If the jack is subjected to abnormal or shock loads, it should be inspected immediately

by a qualiﬁed hydraulic technician.

Red Line

SPECIFICATIONS

INSTALLATION

OPERATION

Adding Fluid

Raising the Load

Removing Air

Model No. Capacity

Tons

Stroke

in (cm)

Eective Area

in2(cm2)

Collapsed Height

in (cm)

JH-1.5 1.5 5.19 (13.2) 0.69 (4.45) 7.50 (19.1)

JHL-1.5 1.5 18.00 (45.72) 0.69 (4.45) 21.72 (55.17)

JH-3 3 5.88 (14.9) 1.23 (7.94) 8.75 (22.2)

JHL-3 3 20.00 (50.80) 1.23 (7.94) 26.31 (66.83)

JH-5 5 6.25 (15.9) 1.87 (12.1) 9.50 (24.1)

JH-8 8 6.25 (15.9) 1.87 (12.1) 9.50 (24.1)

JH-12 12 5.13 (13.0) 3.28 (21.2) 8.88 (22.6)

JH-20 20 6.50 (16.5) 5.16 (33.3) 11.00 (27.94)

JH-306 30 6.13 (16.0) 5.94 (38.3) 10.00 (25.40)

JH-506 50 6.09 (15.5) 9.62 (62.1) 10.25 (26.04)

JH-1006 100 6.06 (15.4) 20.63 (133.1) 11.31 (28.73)

WARNING

Before adding ﬂuid, make sure the plunger is fully retracted, or the system will

contain more ﬂuid than the reservoir can hold.

1. Use wrench end of jack handle to open release valve by turning counter-clockwise.

2. Place jack on its side with ﬁll plug facing up. Remove ﬁll plug.

3. Slowly add Enerpac hydraulic ﬂuid. Do not ﬁll reservoir completely. Fluid level should be below ﬁll

plug when jack is upright.

Stand jack upright, allowing excess ﬂuid to run out of ﬁll plug hole. Replace ﬁll plug. Clean o excess ﬂuid.

Check load rating on jack nameplate to make certain the jack is capable of liﬁng the load. Use a

gauge to monitor the load. Gauge adaptor kits are available for 20,30, 50 and 100 ton jacks. Use

gauge kit GF20L for JH-20 models, and gauge kit GF325 for JH-306, JH-506, and JH-1006 models.

1. On 30 - 100 ton models, open air vent.

2. Use wrench end of handle to close the release valve by turning clockwise hand tight.

CAUTION

Excessive tightening is unnecessary and will cause wear.

3. Insert handle into jack pump beam and pump until desired height is reached.

NOTE: For 50 to 100 Ton jacks, use speed (A) pump beam until plunger reaches

load. Then move the handle to load (B) pump beam to lift the load.

1. On 30 - 100 Ton models, open air vent.

2. Use wrench end of jack handle to open release valve by turning counter-clockwise.

3. Insert jack handle into jack pump beam and rapidly pump the handle.

4. Use wrench end of jack handle to close release valve by turning clockwise.

5. If jack operation is not smooth, repeat the air removal procedure.

Enerpac JH Series Jacks

These products conform with the

requirements for CE Marking.

4. Remove jack handle when not in use.

WARNING

Stay clear of loads supported by hydraulics. After the load has been raised, it

should be blocked, using material capable of supporting the load.

1. Use wrench end of jack handle to open the valve a very small amount to avoid sudden

dropping of the load. Turn release valve counter-clockwise very slowly to control the speed of

descent.

WARNING

NEVER turn release valve quickly to full open when there is a load on the jack. The

load will fall uncontrolled, leading to personal injury and/or property damage.

2. All jacks are load return. Without a load, the plunger may not retract. Adding weight to the

plunger will make it retract.

CAUTION

If you decide to stand on the jack, be sure the jack is stable and hold on to a sturdy

object to avoid injury.

1. Before storing, inspect and clean the jack.

2. Close the air vent on 30 - 100 Ton models.

3. Store jack upright to protect the seals.

4. Periodically lubricate the jack pump beam.

The following is intended as an aid in determining if a problem exists. DO NOT disassemble the

jack. For repair service, contact the Authorized Enerpac Service Center in your area.

Problem Possible Cause Solution

Jack will not rise,

rises part way, or

rises in spurts.

Load is too heavy. Do not attempt to lift more than rated capacity.

Release valve open. Close release valve.

Low ﬂuid level. Add ﬂuid. See page 3.

Air in system. Remove air as directed on page 3.

Plunger binding. Have jack serviced by a qualiﬁed hydraulic technician.

Jack rises, but loses

pressure.

Load is too heavy. Do not attempt to lift more than rated capacity.

Plunger seal leaking. Have jack serviced by a qualiﬁed hydraulic technician.

Plunger will not retract. No load on the plunger. Put weight on the plunger to help it retract.

Release valve closed. Open the release valve slowly. See "Lowering the Load".

Air vent closed.

(on 30 - 100 Ton models)

Open air vent valve.

Reservoir is over-ﬁlled. With jack in the upright position and no load, remove ﬁll

plug and allow oil to drain out of ﬁll hole.

Worn or damaged seals. Have jack serviced by a qualiﬁed hydraulic technician.

Plunger damage. Have jack serviced by a qualiﬁed hydraulic technician.

Lowering the Load

MAINTENANCE

TROUBLESHOOTING

CAUTION

In certain situations, the pump handle can kick back. Always keep body away from

the line of force of the handle.

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