MAHA RGA UC Original Operating Instructions
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RGA UC
Mobile Column Lift
Original Operating Instructions
BA492401-en
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2
Manufacturer
Service
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BA492401-en
2019-06-12
© MAHA Maschinenbau Haldenwang GmbH & Co. KG
The reproduction, distribution and utilization of this document as well as the 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 the grant of a patent, utility model or design. The contents of this edition have been checked with great care. However, errors cannot be
fully excluded. Subject to technical change without notice.
MAHA Maschinenbau Haldenwang GmbH & Co. KG
Hoyen 20
87490 Haldenwang
Germany
Phone: +49 8374 585 0
Fax: +49 8374 585 590
Mail: maha@maha.de
Web: www.maha.de
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MAHA SERVICE CENTER
Maybachstraße 8
87437 Kempten
Germany
Phone: +49 8374 585 100
Fax: +49 8374 585 491
Mail: service@maha.
de
Web: www.mahaservicecenter.de
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Contents
1
Safety .................................................................................................................... 5
2
Description .......................................................................................................... 10
3
Operation ............................................................................................................. 13
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1.1 Introduction .............................................................................................................. 5
1.2 Symbols and Signal Words ...................................................................................... 5
1.2.1 Personal Injury .......................................................................................................... 5
1.2.2 Property Damage ..................................................................................................... 5
1.2.3 Information ............................................................................................................... 5
1.3 Intended Use ........................................................................................................... 6
1.4 Inappropriate Use ..................................................................................................... 6
1.5 Requirements on Operating and Service Personnel .................................................. 6
1.6 Safety Instructions for Commissioning ...................................................................... 6
1.7 Safety Instructions for Operation............................................................................... 7
1.8 Safety Instructions for Servicing ................................................................................ 7
1.9 What to Do in the Event of Defects or Malfunctions .................................................. 8
1.10 What to Do in the Event of an Accident .................................................................... 8
1.11 Safety Features ........................................................................................................ 9
1.11.1 Locking Device ......................................................................................................... 9
1.11.2 Braking Motor .......................................................................................................... 9
1.11.3 Phase Sequence Relay ............................................................................................ 9
1.11.4 Thermal Overload Protection .................................................................................... 9
1.11.5 Safety Shutdown after Motor Overload ..................................................................... 9
1.11.6 Warning and Information Labels ............................................................................... 9
2.1 Design and Operating Principle .............................................................................. 10
2.2 Specifications ......................................................................................................... 11
2.3 Sample Nameplate ................................................................................................. 12
3.1 Handling / Moving the Columns .............................................................................. 13
3.2 Controls and Indicators .......................................................................................... 14
3.3 Main Switch ........................................................................................................... 16
3.4 Initial Operation ...................................................................................................... 16
3.5 Positioning, Logging in and Interconnecting the Columns ....................................... 17
3.6 Switching over to Group Mode ............................................................................... 18
3.7 Switching over to Single Mode ............................................................................... 18
3.8 Raising and Lowering ............................................................................................. 19
3.9 Shutdown .............................................................................................................. 19
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4
Maintenance ........................................................................................................ 22
5
Service Lifetime .................................................................................................... 34
6
Dismantling .......................................................................................................... 34
7
Disposal ............................................................................................................... 34
8
Contents of the Declaration of Conformity ............................................................. 34
3.10 Emergency-down Function, Mechanical ................................................................. 20
3.11 Adjustment of Support Forks .................................................................................. 21
4.1 Annual Inspection ................................................................................................... 22
4.2 Care Instructions .................................................................................................... 22
4.3 Maintenance by the Operator ................................................................................. 23
4.3.1 Lubricants .............................................................................................................. 23
4.3.2 Recirculating Ball Nut ............................................................................................. 23
4.3.3 Moving Gear .......................................................................................................... 24
4.3.4 Options .................................................................................................................. 25
4.3.5 Thrust Washers ...................................................................................................... 26
4.4 Setting the Hydraulic Jack ...................................................................................... 29
4.5 Battery Charge Condition ....................................................................................... 30
4.6 Troubleshooting ..................................................................................................... 31
4.7 Spare Parts ............................................................................................................ 33
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1
Safety
1.1
Introduction
1.2
Symbols and Signal Words
1.2.1
Personal Injury
DANGER
WARNING
CAUTION
1.2.2
Property Damage
NOTICE
1.2.3
Information
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Thoroughly read this manual before operating the equipment and comply with the
instructions. Always display the manual in a conspicuous location.
Personal injury and property damage incurred due to non-compliance with these
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safety instructions are not covered by the product liability regulations.
indicates an immediate hazard which, if not avoided, will result in death or severe
personal injury.
indicates a potential hazard which, if not avoided, could result in death or severe
personal injury.
indicates a potential hazard which, if not avoided, could result in moderate or minor personal injury.
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indicates a potentially harmful situation which, if not avoided, could result in damage to the equipment or surrounding objects.
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indicates important information notes.
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1.3
Intended Use
1.4
Inappropriate Use
WARNING
1.5
Requirements on Operating and Service Personnel
WARNING
1.6
Safety Instructions for Commissioning
WARNING
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• This lift is to be used exclusively for the safe lifting of commercial and agricultur-
al vehicles such as trucks, buses, tractors etc. Observe the rated load capacity.
• The lift may not be modified without the express written consent of the manu-
facturer. In case of non-compliance the declaration of conformity becomes
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void.
Any use other than described is inappropriate, for example:
• Climbing on the lift supports
• Transporting persons on the lift supports
• Usage as mobile work platform or for other lifting operations
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All persons employed in the operation, maintenance, installation, removal and disposal of the device must
• be at least 18 years old,
• be mentally and physically suited for these activities,
• be demonstrably trained and instructed in writing,
• have read and understood the operating instructions, especially the instructions
what to do in the event of defects or malfunctions,
• be on record as having been instructed in safety guidelines,
• have practical experience in working with vehicle lifts and the hazards inherent
in such equipment.
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• Use the lift on a hard, level surface only.
• The standard lift version must not be installed and commissioned in the vicinity
of explosives or flammable liquids.
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1.7
Safety Instructions for Operation
WARNING
1.8
Safety Instructions for Servicing
WARNING
• Ensure that ecologically harmful substances are disposed of only in accordance
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• Read the detailed operating manual.
• Use personal protective equipment.
• The lift owner/operator must provide a tidy and clean workplace.
• Carry out a visual and functional check of the equipment every day before start-
ing work.
• Do not exceed the rated load capacity per column as indicated on the lift
nameplate.
• Ensure an unobstructed movement of lift and vehicle.
• The vehicle doors must be closed during lift operation.
• After raising the vehicle briefly, stop and check the lift supports for secure con-
tact with the vehicle.
• Closely watch lift and vehicle during raising and lowering cycles.
• The working area which cannot be overviewed by the operator should be moni-
tored by a second person.
• When operating the lift in single or group mode, make sure the vehicle is not
tilted.
• Do not allow anyone to stay in lift area during raising and lowering cycles.
• Do not allow anyone to climb on lift or inside raised vehicle.
• Keep lift and vehicle free of tools and parts.
• When using the lift outdoors, lower the vehicle and stop operation when the
wind velocity exceeds 6 m/s.
• Push the support forks completely under the wheels or lift points of the vehicle
to be raised.
• Do not drive over or pinch electrical cables.
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• Service work may be done by authorized service technicians only.
• Turn off and padlock the main switch before doing any repair, maintenance or
setup work.
• Disconnect the mains plug before opening the control box.
• Work on the electrical equipment may be done by service technicians or certi-
fied electricians only.
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with the appropriate regulations.
1.9
What to Do in the Event of Defects or Malfunctions
WARNING
1.10
What to Do in the Event of an Accident
• Do not use high pressure or steam jet cleaners or caustic cleaning agents for
cleaning the lift,
• Do not replace or override the lift safety devices.
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• In case of defects or malfunctions such as uncontrolled lift movement or defor-
mation of the superstructure, support or lower the lift immediately.
• Turn off the main switch and secure it against unauthorized usage. Contact
service.
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• The injured person is to be removed from the danger area. Find out where
dressing and bandages are kept. Seek first-aid.
• Provide first-aid (stop bleeding, immobilise injured limbs), report the accident
and seal off the accident site.
• Immediately report any accident to your supervisor. Make sure a record is kept
of every occasion first-aid is provided, e.g. in an accident book.
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• Remain calm and answer any questions that may arise.
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1.11
Safety Features
1.11.1
Locking Device
1.11.2
Braking Motor
1.11.3
Phase Sequence Relay
1.11.4
Thermal Overload Protection
1.11.5
Safety Shutdown after Motor Overload
≥ 15 %
1.11.6
Warning and Information Labels
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The locking device serves to prevent inadvertent lowering motions
caused by gear, load nut or lifting screw failure. The carriage is
blocked by safety wedge (1) and counterwedge (2).
The motors are equipped with AC spring pressure brakes. Once
the motors are switched off, the brakes prevent any further
movements.
The phase sequence relay in the power supply unit ensures safe
and independent operation.
Overload protection via electronically monitored thermoswitches.
The motor load is permanently monitored by the control PCB. If an overload of
occurs, the system will switch off automatically. In this case the lift cannot
be raised any more, but it can be normally lowered to bottom position.
Do not change or remove the warning and information labels. Order replacement
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for defective labels.
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2
Description
2.1
Design and Operating Principle
Complete System
Column
Control
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The complete system of the Mobile Column Lift consists of individual columns,
which can be interconnected (e.g. 4, 6, 8 columns) and used to raise commercial
vehicles. A maximum number of 8 columns per lift system can be logically interconnected. A maximum number of 8 lift systems can be operated parallel, with information exchange on different radio channels.
The complete system can be operated from each individual column. The columns
interact via radio communication, with each lift system using its own channel.
The columns are mechanically designed for engaging the wheels of commercial
vehicles.
They are all identical and interchangeable from system to system. Power supply is
effected via rechargeable batteries.
Each column is equipped with a control unit made up of the following components:
• Operating panel with display
• Microprocessor
• Pulse generators and sensors
• Watchdog monitoring
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• Radio transmitter / receiver
• Drive unit
• Emergency stop switch
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2.2
Specifications
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