HAWE Hydraulik HLU LE-X Manuale utente
Hydraulic Locking Unit (HLU) for Passenger
Restraint Systems
Translation of original assembly instruc-
tions
B 6052-21
11-2021 -1.7 en
Type:
ID no.:
System solution
HLU LE-X (M)
© by HAWE Hydraulik SE.
The reproduction and distribution of this document as well as the use and communication of its contents to others without explicit
authorization is prohibited.
Offenders will be held liable for the payment of damages.
All rights reserved in the event of patent or utility model applications.
Brand names, product names and trademarks are not specifically indicated. In particular with regard to registered and protected names
and trademarks, usage is subject to legal provisions.
HAWE Hydraulik respects these legal provisions in all cases.
HAWE Hydraulik cannot provide individual guarantees that the stated circuits or procedures (including in part) are not subject to the
intellectual property rights of third parties.
Printing date / document generated on: 15.11.2021
2/63 B 6052-21 - 11-2021 - 1.7 HAWE Hydraulik SE
Table of Contents
1 About these instructions.................................................................................................................................. 5
1.1 About these instructions.....................................................................................................................................5
1.2 Target audience................................................................................................................................................. 5
1.3 Safety instructions and symbols...........................................................................................................................6
1.3.1 Safety instructions and symbols...........................................................................................................................6
1.4 Applicable documents......................................................................................................................................... 8
2 For your safety................................................................................................................................................ 9
2.1 Intended use.....................................................................................................................................................9
2.2 Misuse.............................................................................................................................................................. 9
2.3 Residual risks.................................................................................................................................................... 9
2.4 Duties of the operator...................................................................................................................................... 10
2.5 Qualification of the personnel............................................................................................................................11
2.6 Personal protective equipment........................................................................................................................... 11
3 About this product......................................................................................................................................... 12
3.1 Structure......................................................................................................................................................... 12
3.2 Functions........................................................................................................................................................ 13
3.2.1 Type EX: Blocking against extension................................................................................................................... 14
3.2.2 Type RE: Blocking against retraction...................................................................................................................14
3.2.3 Type DL (EX): Blocking against extension with comfort lock...................................................................................14
3.2.4 Type DL (RE): Blocking against retraction with comfort lock.................................................................................. 15
3.3 Instructions for the ride manufacturer................................................................................................................ 16
3.4 Markings..........................................................................................................................................................18
4 Transport and storage..................................................................................................................................... 19
4.1 Transport equipment......................................................................................................................................... 19
4.2 Checking the delivery........................................................................................................................................19
4.3 Storage........................................................................................................................................................... 20
5 Assembly and installation...............................................................................................................................21
5.1 Mechanical connection......................................................................................................................................22
5.2 Electrical connection........................................................................................................................................ 24
6 Start-up......................................................................................................................................................... 26
6.1 Starting up the hydraulic locking unit................................................................................................................ 26
7 Operation....................................................................................................................................................... 27
7.1 Switching on and off........................................................................................................................................27
7.2 Temporary shutdown......................................................................................................................................... 28
7.3 Response in emergency..................................................................................................................................... 28
7.3.1 Opening with power supply connected................................................................................................................ 28
7.3.2 Opening with power supply disconnected............................................................................................................ 29
7.3.3 Opening under high static load..........................................................................................................................29
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8 Maintenance...................................................................................................................................................32
8.1 Maintenance plan............................................................................................................................................. 34
8.2 Cleaning and visual inspection for damage.......................................................................................................... 35
8.2.1 Locking unit.................................................................................................................................................... 35
8.2.2 Emergency override...........................................................................................................................................36
8.2.3 Piston rod....................................................................................................................................................... 36
8.2.4 Piston type accumulator....................................................................................................................................37
8.3 Mechanism.......................................................................................................................................................38
8.3.1 Check for leaks in the locking unit.....................................................................................................................38
8.3.2 Check function of emergency override button.......................................................................................................38
8.3.3 Check rod end bolt connection.......................................................................................................................... 39
8.3.4 Check pivot bearing clearance............................................................................................................................40
8.3.5 Replace pivot mounts....................................................................................................................................... 40
8.3.5.1 Rod-side rod end..............................................................................................................................................40
8.3.5.2 Base-side rod end............................................................................................................................................ 44
8.4 Electrics.......................................................................................................................................................... 47
8.4.1 Check and replace coil...................................................................................................................................... 47
8.5 Filling the hydraulic accumulator........................................................................................................................49
8.6 Functional check.............................................................................................................................................. 52
8.6.1 Locking function.............................................................................................................................................. 52
8.6.2 Opening function............................................................................................................................................. 53
8.6.3 Hold and drift function.....................................................................................................................................55
9 Disassembly and disposal................................................................................................................................56
10 Troubleshooting..............................................................................................................................................58
11 Appendix........................................................................................................................................................60
11.1 Technical data..................................................................................................................................................60
11.1.1 Operating conditions.........................................................................................................................................60
11.1.2 Weights and measures.......................................................................................................................................60
11.2 Shipping data.................................................................................................................................................. 61
11.3 System - parts list........................................................................................................................................... 62
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1About these instructions
1.1 About these instructions
This manual is part of the product and describes the safe and proper use in all operating phases.
All photos and drawings in this manual show an available product variant. For precise details concerning
the variant you have purchased, please refer to the type plate attached to the product.
Read instructions before use.
Make the manual accessible to operating and maintenance personnel at all times.
Keep this manual for the lifetime of the product.
Only pass on the product to third parties together with this manual.
Device specially designed for use at fairs and/or amusement parks
The product may only be put into operation by the fairground ride manufacturer once the higher-
level system meets the requirements of DIN 13814, the Use of Work Equipment Directive 2009/104/
EC, the Directive 89/391/EEC and the national regulations of the country of use.
The information in these instructions must be supplemented by the plant manufacturer in
accordance with the results of his own risk assessment. The plant manufacturer must decide which
information contained in these installation instructions is relevant for the operator of the plant
and must pass on the information.
1.2 Target audience
The target audience of this manual is trained and qualied personnel who are familiar with the installa-
tion, operation and maintenance of machines.
The manual provides relevant information for the machine manufacturer and machine operator as well as
for training courses.
To request further information about the product, contact HAWE Micro Fluid GmbH.
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1.3 Safety instructions and symbols
1.3.1 Safety instructions and symbols
Safety indication In these instructions, the following warning and safety notes are used:
Symbol Meaning
DANGER
Draws your attention to a hazardous situation that can lead directly to serious injury
or death if not avoided.
WARNING
Draws your attention to a hazardous situation that can indirectly lead to serious
injury or death if not avoided.
CAUTION
Draws your attention to a hazardous situation that can indirectly lead to light to
moderate injury if not avoided.
Notice to prevent environmental and material damage.
Information to ensure the correct use of the product.
Safety symbols General safety symbol
Draws your attention to additional safety information.
Slipping hazard Dragging hazard from moving parts
Harmful substances Tripping and falling hazard
Fire accelerants Falling loads
Burn hazard Crushing hazard
Electrical voltage Suspended loads
No access to persons with pacemakers
and defibrillators
Mandatory signs Protective equipment
Safety boots
Wear appropriate safety boots to protect your feet against mechanical hazards
Work gloves
Wear suitable work gloves to protect your hands against chemical and mechanical
hazards.
Safety goggles
Wear safety goggles to protect your eyes against chemical and mechanical hazards.
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Protective equipment
Protective clothing
►Wear tted clothing without protruding parts.
►Follow the safety data sheet of the hydraulic uid.
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1.4 Applicable documents
The locking unit has been designed and manufactured in compliance with engineering practice
according to the Pressure Equipment Directive (PED 2014/68/EU Article 4, paragraph 3), and is
safe to use. No EU Declaration of Conformity may be issued for pressure equipment and assemblies
classied in the Pressure Equipment Directive according to Article 4 (3). No CE mark may be afxed.
Standard Name
DIN EN 13814 Fairground and amusement park machinery and structure - Safety of
amusement rides and amusement devices
ASTM F2291 Standard Practice for Design of Amusement Rides and Devices
F 698-94 Standard Specification for Physical Information to be Provided for
Amusement Rides and Devices
F 846-92 Standard Guide for Testing Performance of Amusement Rides and
Devices
F 893-10 Standard Guide for Inspection of Amusement Rides and Devices
ISO 17842-01 Safety of amusement rides and amusement devices -- Part 1: Design
and manufacture
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2For your safety
The product is built according to the state of the art and recognized safety regulations.
Nevertheless, there is a risk of personal injury and damage to property if this chapter and the safety
instructions in this manual are not observed.
2.1 Intended use
■The product is a technical work tool and intended for commercial and industrial use only.
■The product may only be operated in accordance with the technical data, operating conditions and
performance limits specied in this manual.
■Only use original accessories and original spare parts approved by the manufacturer.
■The product may be used outdoors and indoors.
■The product is used for the infinitely variable locking of passenger restraint systems on seats in
amusement rides and ying structures.
■Any rides that are operated as ying structures on the territory of the United States of America are
excluded from said use.
■Forces may only be transmitted to the locking unit by way of articulated lugs.
■Use the product only after undergoing training by the seat or ride operator.
Partly completed machinery
The product is a partly completed machine according to the EC Machinery Directive 2006/42/EC and
is intended exclusively for installation in a machine or system. The product is controlled via the
manufacturer's machine / plant control.
►Comply with the manufacturer’s operating instructions.
2.2 Misuse
■Use in other operating modes than specied in the intended use
■Using the product beyond the specied performance limits
■Do not convert the product or modify it in any way.
■Do not paint over elastic sealing parts, bearings of moving parts and hose lines.
■Do not use this product in potentially explosive atmospheres.
2.3 Residual risks
When handling hydraulic uid, comply with the safety data sheet of the manufacturer of the
hydraulic uid.
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DANGER
Risk to life due to explosive combustion
Hydraulic uid and its associated mists and vapours are oxidizing. Contact with ignition sources will
lead to explosive combustion. Risk of serious injury or death.
►Avoid re and open light and do not smoke anywhere near the product.
►Immediately dispose of any ammable materials moistened with hydraulic uid as hazardous waste.
►Do not use any ammable or corrosive cleaning agents.
WARNING
Electrical and magnetic elds
Electrical and magnetic elds impair the functionality of cardiac pacemakers and implanted defibrilla-
tors.
►People with pacemakers or implanted defibrillators must maintain a sufcient distance from
magnets.
►Advise people with pacemakers or implanted defibrillators against approaching magnets.
►Cordon off the area around the drive system and afx suitable warning signs to the barriers.
WARNING
Risk of injury through crushing or cutting
Body parts might get trapped or cut off between the machine frame and hydraulic system in the event of
careless transport, installation and de-installation.
►Never reach between the hydraulic system and the machine frame.
►Ensure that other people cannot enter the danger area.
►Wear gloves and work shoes.
2.4 Duties of the operator
Observe and comply with regulations:
►Do not put the product into operation until the complete machine or system complies with the
country-specic regulations, safety regulations and standards of the application.
►Observe and apply regulations for accident prevention and environmental protection.
Operate product safely:
►Despite safety devices, the product still poses residual risks. Observe the safety instructions in this
manual to reduce health hazards and avoid dangerous situations.
►The operator must ensure that the operating conditions (see general, hydraulic and electrical data)
are within the operating limits of the product.
►Keep all instructions / signs on the product in legible condition and observe them.
Instruct personnel:
►Regularly train the personnel in all points of these instructions and ensure that they are observed.
►Ensure the terms of the industrial safety and operating instructions are observed.
►Only use qualied personnel. Due to their training and experience, the qualied personnel must be
able to recognize risks and avoid possible hazards.
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