HAWE Hydraulik HLU Series Assembly Instructions Manual

Hydraulic locking unit
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Hydraulic locking unit (HLU) series HLU LE25 and HLU
LE32
Assembly instructions
Hydraulic locking unit (HLU) for personal restraint systems.
(Translation of the original instructions)
B 6052
02-2024    -2.3 en

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Summary of Contents for HAWE Hydraulik HLU Series

  • Page 1 Hydraulic locking unit (HLU) series HLU LE25 and HLU LE32 Assembly instructions Hydraulic locking unit (HLU) for personal restraint systems. (Translation of the original instructions) B 6052 02-2024    -2.3 en...
  • Page 2 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.
  • Page 3: Table Of Contents

    Switching on and off............................28 Temporary shutdown............................29 Response in emergency............................. 29 7.3.1 Opening with power supply connected........................ 29 7.3.2 Opening with power supply disconnected......................30 7.3.3 Opening under high static load..........................30 HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  3/61...
  • Page 4 Hold and drift function.............................52 Disassembly and disposal..........................54 Troubleshooting..............................56 Annex................................58 11.1 Technical data..............................58 11.1.1 Operating conditions............................58 11.1.2 Weights and measures............................58 11.2 Shipping data..............................59 11.3 System - parts list............................60 4/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 5: About These Instructions

    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. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  5/61...
  • Page 6: Safety Instructions And Symbols

    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 6/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 7: Applicable Documents

    Safety of amusement rides and amusement devices -- Part 1: Design and manufacture Documents Designation D 6052 G,A,E,K,RL,RD Data sheet: Characteristics and applications for this product R 2020/16 Information: HAWE load case denition HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  7/61...
  • Page 8: For Your Safety

    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. ■ 8/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 9: Residual Risks

    The operating company must ensure the operating conditions (see the technical data) are within the limits for use of the product. Keep all instructions/signs on the product in legible condition and observe them. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  9/61...
  • Page 10: Qualification Of The Personnel

    In the instructions, safety instructions with mandatory symbols indicate the wearing of special protective equipment for special activities. The supply of PPE, and instruction in its proper use, is carried out by the operator. 10/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 11: About This Product

    The hydraulic locking unit (HLU) (2) is a closed hydraulic system, including hydraulic uid, for the infinitely variable locking of passenger restraint systems (1) on seats in amusement rides and ying structures. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  11/61...
  • Page 12 Since November 15, 2018, the emergency override buttons have been tted with rubber caps to better protect the emergency override valve against environmental effects. Design of type A, type E, type K Design of type RL 12/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 13: Functions

    If valves V1 and V2 are energized while the ride is running, the restraint system might release and passengers might suffer fatal injury. Valves V1 and V2 must remain deenergized during operation. Observe the switching logic from page (18). HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  13/61...
  • Page 14: Type A: Blocking Against Extension

    ✓ 2/2-way directional valves are opened. ✓ The piston rod can be moved in the retraction and extension direction. 2. Open restraint system with additional system (e.g. gas spring, leg spring). 14/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 15: Type K: Blocking Against Extension With Comfort Lock

    An additional system (such as a gas spring or leg spring) is therefore required to drive the opening motion and keep the restraint system open. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  15/61...
  • Page 16: Control

    Monitor the emergency override button on (V1) and (V2) so that the lock cannot be released uninten- ■ tionally. The control system must ensure that the 2/2-way valve is prevented from being energized, and ■ thereby opening, while the ride is running. 16/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 17 2/2-way directional valve (= emergency actuation) (page 11). For hydraulic locking units of the types A, E and RL. For hydraulic locking units of the types K and RD. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  17/61...
  • Page 18 Do not use the end positions of the hydraulic locking unit as limiters for the bar movement. This would mean it would not be possible to briey retract the cylinder piston while simultaneously energizing V1 for unlocking. 18/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 19: Transport And Storage

    NOTICE Preventing damage in transit Remove the hydraulic locking units individually from the packaging. Do not subject gas valves to any load. Protect gas valves for shipping by padding. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  19/61...
  • Page 20: Scope Of Delivery

    HAWE Micro Fluid GmbH Borsigstraße 11 93092 Barbing email: service@hawe-microfluid.com Claims for damages can only be addressed within the applicable complaint periods. HAWE does not accept any liability for subsequent complaints. 20/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 21: Storage

    Protect from sunlight (UV radiation) and corrosion (such as very salty water). ■ Protect from mechanical damage and damp. ■ Do not store near ignition and heat sources. ■ Note all additional specifications by the ride manufacturer. ■ HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  21/61...
  • Page 22: Assembly And Installation

    Use suitable aids when lling or bleeding. Check all connecting elements that convey oil for leaks before switching on the motor in the parent system. Wipe up leaked hydraulic uid with suitable aids. 22/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 23: Set-Up - Positioning - Attachment

    3. Ensure that the hydraulic locking unit does not touch the seat construction or other system components in retracted or extended state and in any position during operation. The connection may only be made by the mounting points (ball joint). ■ HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  23/61...
  • Page 24 (such as a rubber buffer/stop in the seat kinematic unit). 7. Ensure that unintentional triggering of the emergency actuation is prevented at all times if triggering mechanisms are also installed. 24/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 25: Electrical Connection

    Material damage due to kinks or crushing of the power cable Kinking or crushing of the power cable can result in cable breaks and cable res. Do not kink or crush the cable. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  25/61...
  • Page 26 Insert the plug on the cable into the socket of the coil and connect the cable to the electric power supply. 3. Check the electrical connection after a week’s operating time. Example: Electrical connection of the HLU LE 32K 26/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 27: Start-Up

    ("Instructions for the ride manufacturer", page 16). 7. Check the locking and opening function ("Functional test", page 50 onwards) 8. Check bolt connections after one week of operation at the latest. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  27/61...
  • Page 28: Operation

    1. Check mechanical connections according to the maintenance plan. starting rides 2. Check locking, opening and holding function as well as the drift as per "Functional test", page 50 and maintenance plan. 28/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 29: Temporary Shutdown

    3. Energize the check valve V1 and, for type K and RD hydraulic locking units, also energize valve V2. ✓ The restraint system is open. 4. Ensure that persons can exit safely. 5. Check locking, opening and holding function as per chapter ("Functional test", page 50). HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  29/61...
  • Page 30: Opening With Power Supply Disconnected

    3. Ensure that persons can exit safely. 4. Check locking, opening and holding function as per chapter ("Functional test", page 50). 5. If the restraint system does not open, carry out measure 2. 30/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 31 8. Properly dispose of the hydraulic uid, hydraulic uid container and any cloths contaminated with hydraulic uid. Draining the hydraulic uid will depressurize the hydraulic locking unit, and the restraint system can be Action 3: Unscrew opened. Minimess hose connections HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  31/61...
  • Page 32 4. Clean the area soiled with hydraulic uid immediately. 5. Replace the hydraulic locking unit. Contact HAWE. 6. Properly dispose of the hydraulic uid, hydraulic uid container and any cloths contaminated with hydraulic uid. 32/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 33: Maintenance

    Depressurize the hydraulic system including the pressure tank. Secure the hydraulic system against unintentional restart. Check components for correct assembly before pressure is applied. Observe maximum pressure load for ttings and lines. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  33/61...
  • Page 34: Maintenance Plan

    uid. High solid contamination is due to lack of maintenance of the hydraulic system. Select hydraulic uid according to specifications. Carry out the activities described in this section carefully and in due time. 34/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 35 "Functional test", page Electrics Check electrical contacts In the event of a malfunction (AMP Superseal 1.5 series) Check solenoid and In the event of a malfunction replace if necessary HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  35/61...
  • Page 36: Cleaning And Visual Inspection For Damage

    It must be ensured that any damage, such as spalling or scratches and the accompanying corrosion, are identied reliably. None of the above issues may be present on the sliding surface in particular. 36/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 37: Emergency Override

    7. Then clean the area around the emergency actuation button with brake cleaner again. 8. Recommission hydraulic locking unit in the system (see "Start-up", page 27). 8.2.3 Piston rod Inspection interval specied by ride manufacturer. Maintenance intervals HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  37/61...
  • Page 38: Diaphragm Accumulator

    2. In the event of corrosion, use listed care agents to protect the hydraulic locking unit. 3. The hydraulic locking unit must be replaced in the event of damage. Contact HAWE Micro Fluid GmbH. 38/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 39: Mechanism

    3. Switch on hydraulic locking unit and establish hydraulic pressure as noted in the table Function sequences on page HLU type A and K: Retract piston rod HLU type E, RL and RD (E): Extend piston rod HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  39/61...
  • Page 40: Check Pivot Mount Bolt Connection

    4. If the paint marking is damaged or rod ends/nuts should become loosened: immediately shut down hydraulic locking unit. Then perform the steps mentioned in chapter ("Bar-side pivot mount", page 42) or chapter ("Foot-side pivot mount", page 45). 40/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 41: Check Pivot Bearing Clearance

    3. Replace the rod end (3) if gap between the ball joint (1) and the bearing case (2) exceeds 0.2 mm. ✓ HAWE-approved pivot mount used. ✓ Rod end replaced in accordance with "Replace pivot mounts", page HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  41/61...
  • Page 42: Replace Pivot Mounts

    3. Clamp the hydraulic locking unit in a vise so that the pivot mount is freely accessible. Use protective jaws. Do not damage the connection block. 4. Remove the red rubber cap to gain access to actuate the emergency release. 42/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 43 LE 25: wrench size 19 (1); wrench size 22 (2) LE 32: wrench size 22 (1); wrench size 24 (2) 8. Unscrew the pivot mount from the piston rod so that the nut stays on the piston rod. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  43/61...
  • Page 44 Fill at least one turn of the female thread with adhesive. 11. Screw the pivot mount onto the thread of the piston rod as far as it will go. 44/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 45: Foot-Side Pivot Mount

    Heating-up of the foot-side pivot mounts will damage seals and cause leaks in the hydraulic system. Never heat the base-side rod ends. Use the listed open-end wrenches to unscrew the rod ends. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  45/61...
  • Page 46 5. Unscrew the pivot mount bearing from the cylinder base using the open-end wrench. 6. Clean adhesive residues and dirt from the female thread of the cylinder base with the tap. LE 25: M 14 LE 32: M 16 46/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 47 Distribute the adhesive visibly in the rst thread turns. Fill at least one turn of the female thread with adhesive. 10. Screw the pivot mount with nut into the thread of the cylinder base. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  47/61...
  • Page 48 14. Mark the nut and the articulated lug with threadlocker. 15. After 24 hours of curing time, the hydraulic locking unit can be used again and commissioned in the system "Start-up", page 48/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 49: Electrics

    9. Place the assembly aid (1) on the solenoid housing (2) and x the solenoid housing carefully with light knocks with a plastic hammer on the assembly aid. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  49/61...
  • Page 50: Functional Test

    Ensure that no external force acts on the hydraulic locking unit so that the check valve can open in the event of load. Close the restraint system. For the type K hydraulic locking unit, open the electromagnetic spool valve V2. 50/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 51: Opening Function

    Do not disconnect the pressure accumulator from the hydraulic locking unit. Never modify the hydraulic locking unit with pressure accumulator. Never perform any maintenance on the hydraulic accumulator yourself. daily Interval Aids, tools, materials None ■ HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  51/61...
  • Page 52: Hold And Drift Function

    V1 energised and V2 not energised. b) V1 not energised and V2 energised. 2. Adjust the restraint system with the auxiliary device. 52/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 53 Calculate by how many mm the restraint system can be adjusted with 1 mm extension/retraction of the piston rod. Take into account seat kinematics and bar relationship. 5. Replace faulty hydraulic locking unit. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  53/61...
  • Page 54: Disassembly And Disposal

    Arrange the access to the hydraulic system in such a way that hot surfaces are not accessible to the user. Wait until the hydraulic system has cooled down before servicing or disassembling. 54/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 55 uid according to the regional waste disposal requirements. Dispose of the electronic components at approved collection points or with approved disposal companies according to local regulations. Dispose of metal with approved specialist disposal companies. HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  55/61...
  • Page 56: Troubleshooting

    Using non-approved aids to heat the hydraulic system will damage seals and cause leaks in the hydraulic system. Never use heaters, gas burners or other similar heating devices to heat the system. Operate the hydraulic locking unit within the permissible operating temperatures. 56/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 57 HAWE.) Piston rod can be moved Permanently trapped air in the Hydraulic locking unit must be permanently in locking direction hydraulic locking unit. replaced. Contact HAWE. (permanent loosening). HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  57/61...
  • Page 58: Annex

    Note the following exceptions: IMDG code (Chapter 2.2 in 2.2.2.5 Class 2.2) IATA/DGR (Section 3 in 3.2.2.4 Division 2.2), exemption in ADR regulations (in 1.1.3.2). Note: The Material Safety Data Sheet (MSDS) is available on request. 58/61 B 6052 - 02-2024 - 2.3 en  HAWE Hydraulik SE...
  • Page 59: Shipping Data

    Air Transport Association Dangerous Goods Regulations (IATA-DGR): A114. Not restricted as per special provision IATA-DGR: A114. Class None Danger label number None Packaging group None Packaging specification None HAWE Hydraulik SE B 6052 - 02-2024 - 2.3 en  59/61...
  • Page 60: System - Parts List

    Only use original spare parts from HAWE. Exact order information can be taken from the external additional information, the technical data sheet. Contact details Headquarters Manufacturer HAWE Hydraulik SE HAWE Micro Fluid GmbH Einsteinring 17 Borsigstraße 11 85605 Aschheim 93092 Barbing...
  • Page 61 Further information HAWE Hydraulik SE is a responsible development partner with application expertise and experience in more than 70 areas of mechanical and plant engineering. The product range includes hydraulic power packs, constant and variable pumps, valves, sensors and accessories.

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