Maha Rga uc User manual

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RGA UC

Mobile Column Lift

Original Operating Instructions

BA492401-en

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BA492401-en

2019-06-12

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

sign. The contents of this edition have been checked with great care. However, errors cannot be

fully excluded. Subject to technical change without notice.

Manufacturer

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

Service

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

Safety ....................................................................................................................5

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

Description ..........................................................................................................10

2.1 Design and Operating Principle ..............................................................................10

2.2 Specifications.........................................................................................................11

2.3 Sample Nameplate.................................................................................................12

Operation.............................................................................................................13

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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3.10 Emergency-down Function, Mechanical .................................................................20

3.11 Adjustment of Support Forks..................................................................................21

Maintenance ........................................................................................................22

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

Service Lifetime....................................................................................................34

Dismantling..........................................................................................................34

Disposal...............................................................................................................34

Contents of the Declaration of Conformity.............................................................34

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Safety

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1.1

Introduction

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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

safety instructions are not covered by the product liability regulations.

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1.2

Symbols and Signal Words

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1.2.1

Personal Injury

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DANGER

indicates an immediate hazard which, if not avoided, will result in death or severe

personal injury.

WARNING

indicates a potential hazard which, if not avoided, could result in death or severe

personal injury.

CAUTION

indicates a potential hazard which, if not avoided, could result in moderate or mi-

nor personal injury.

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1.2.2

Property Damage

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NOTICE

indicates a potentially harmful situation which, if not avoided, could result in dam-

age to the equipment or surrounding objects.

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1.2.3

Information

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indicates important information notes.

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1.3

Intended Use

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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

void.

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1.4

Inappropriate Use

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WARNING

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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1.5

Requirements on Operating and Service Personnel

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WARNING

All persons employed in the operation, maintenance, installation, removal and dis-

posal 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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1.6

Safety Instructions for Commissioning

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WARNING

•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

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WARNING

•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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1.8

Safety Instructions for Servicing

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WARNING

•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.

•Ensure that ecologically harmful substances are disposed of only in accordance

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with the appropriate regulations.

•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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1.9

What to Do in the Event of Defects or Malfunctions

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WARNING

•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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1.10

What to Do in the Event of an Accident

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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.

•Remain calm and answer any questions that may arise.

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1.11

Safety Features

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1.11.1

Locking Device

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).

1.11.2

Braking Motor

The motors are equipped with AC spring pressure brakes. Once

the motors are switched off, the brakes prevent any further

movements.

1.11.3

Phase Sequence Relay

The phase sequence relay in the power supply unit ensures safe

and independent operation.

1.11.4

Thermal Overload Protection

Overload protection via electronically monitored thermoswitches.

1.11.5

Safety Shutdown after Motor Overload

The motor load is permanently monitored by the control PCB. If an overload of

≥15 %

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.

1.11.6

Warning and Information Labels

Do not change or remove the warning and information labels. Order replacement

for defective labels.

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Description

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2.1

Design and Operating Principle

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Complete System

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 inter-

connected. A maximum number of 8 lift systems can be operated parallel, with in-

formation 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.

Column

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.

Control

Each column is equipped with a control unit made up of the following compo-

nents:

•Operating panel with display

•Microprocessor

•Pulse generators and sensors

•Watchdog monitoring

•Radio transmitter / receiver

•Drive unit

•Emergency stop switch

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2.2

Specifications

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Load capacity per column 7500 kg

Full travel 1750 mm

Raising / Lowering time 113 s

Raising speed 920 mm/min

Tyre diameters 550…1500 mm

Motor power 1.5 kW

Protection class IP 54

Control voltage 48 V

Charging voltage 230 V

Net weight per column 545 kg

Surface load 0.5 N/mm2

Noise emission < 70 dB(A)

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2.3

Sample Nameplate

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Lifts of this model series have one nameplate at the lifting carriage of each column

and also on the supply unit (if present).

In the event of customer complaints, hotline requests or spare parts orders, serial

number and YoM of the lift should always be indicated.

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MOBILE COLUMN LIFT

Ser. No./ Date of Production: ***

Project: ***

Type: ***

Charging Voltage ***

Operating Voltage ***

Net weight per column ***

Load capacity per column ***

System of Protection ***

WEEE Reg. No. ***

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Operation

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3.1

Handling / Moving the Columns

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Screw a lifting-eye bolt M16 into the tap hole on the motor plate of the column.

Insert a chain or strap through the ring and lift the column using a hoist or forklift.

Close hydraulic valve by putting valve lever in position 3.

Pump with handle to raise the moving gear. Move column to desired position.

To lower the moving gear, open the hydraulic valve by putting the valve lever in

position 1. The column is ready for operation.

Position 2 is the neutral position.

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3.2

Controls and Indicators

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A LED Display: Operating Status

Red, yellow and green LEDs indicate the operating status. See also section

"Troubleshooting".

B Button: Raise

When button is pushed, lift raises until button is released or upper end position

is reached.

C Button: Lower

When button is pushed, lift lowers until button is released or lower end position

is reached.

D LED Display: Number of Columns

Number of LEDs represents number of columns in a column unit. Flashing LED

indicates next free column number in an open column unit.

E Button: Open/Close Column Unit

Use this button to open a closed column unit or to close an open unit.

F LED Display: Column Unit

LED lighting up indicates that the column unit is closed. LED also lights up

when operating mode is changed (see below).

G LED Display: Channel Number

LED lighting up indicates current channel number.

H Button: Select Channel Number

Use this button to switch on to the next available channel. Occupied channels

are skipped, channel 10 is followed by channel 1 and so on.

I LED Display: Operating Mode

Current operating mode is indicated by LED.

J Button: Select Operating Mode

Use this button to switch on to the next mode. "Single" (one column), "Auto" (all

columns of a column unit) and "Group" (several columns) can be selected.

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BA492401-en

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BA492401-en

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3.3

Main Switch

Pos: 57 /Produktfamilien/Hebetechnik/- Arch iv -/00 Hebetechnik Alle/Inhalte/Inhalt: GEFAHR - Hauptschalter mit Not-Aus-Funktion HBZ_12pt @ 54\mod_15349226183 84_75.doc x @ 3081665 @ @ 1

DANGER

The main switch is used as emergency switch. In case of emergency immediately

turn it to position 0!

Main switch in position 0

Lift is disconnected from power supply

Main switch in position 1

Lift is ready for operation

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3.4

Initial Operation

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Place the receiving antennae in an upright position before operating the columns.

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BA492401-en

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3.5

Positioning, Logging in and Interconnecting the Columns

Pos: 63 /Produktfamilien/Hebetechnik/COLUMNLIFT/491901 RGA/BA/Inhalt:49 19Hubsäulen aufstellen, anmelden und verbinden_12pt @ 56\mod _1560324806433_75.d ocx @ 3147418 @ @ 1

1 Push the support forks completely under the wheels or lift points of the vehicle

to be raised. Use the lift on a hard, level surface only.

2 Turn the main switch to position 1.

The "Auto" LED flashes.

3 Select the transmission channel. All

columns belonging to the same unit

must be set to the same channel.

4 Confirm using the operating mode

button.

The "Auto" LED lights permanently.

5 Repeat the procedure for all columns.

Number of columns within the unit is displayed.

Before closing the unit check the number of logged-

in columns. After closing verify

that it corresponds with the number of columns appearing on the display.

6 Once all columns are logged in, close the unit

using button "0/1".

The "Column unit" LED lights up, lift is ready for

operation.

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BA492401-en

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3.6

Switching over to Group Mode

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1 Switch to Group mode using the op-

erating mode button on the desired

columns.

The "Group" LED lights permanently.

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3.7

Switching over to Single Mode

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1 Switch to Single mode using the op-

erating mode button on the desired

column.

The "Single" LED lights permanently.

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BA492401-en

Pos: 70 /Produktfamilien/Alle Geräte/Überschriften/Überschriften1.1/H/Überschrift1.1: Heben und Senken@ 6\mod_ 1178521944593_75.d ocx @ 91237 @ 2 @ 1

3.8

Raising and Lowering

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WARNING

When operating the lift in Group or Single mode, make

sure the vehicle is not tilted. Otherwise the vehicle may

fall off the lift!

•Before operating the lift, check that the number of columns appearing on the

display corresponds to the number of columns actually logged in.

•All columns belonging to the same unit must be set to the same channel.

•If the unit is opened there may be interference problems with other

transmission

channels.

1 Press "Raise" or "Lower" button.

Lift stops once button is released or end position is

reached.

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3.9

Shutdown

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1 Before shutting down the lift, open

the column unit using button "0/1".

"Column unit" LED goes off.

2 Turn main switch to position 0.

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BA492401-en

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3.10

Emergency-down Function, Mechanical

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WARNING

Authorised personnel only! Do not restart the lift before the error has been reme-

died.

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In case of power failure or defects the lift can be lowered manually.

Once the locking device is in engagement, manual lowering is no longer possible.

The following components are required for manual lowering:

A Lever at brake motor B Locking device

1 Pull or shake the safety wedge downward on each column.

2 First push onto the latch using a long screw driver, then additionally push the

manual release lever (in arrow direction).

Intermittently lower the columns in increments of approx. 50 mm, until the lift is

in bottom position.

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