MAHA RGA Operating instructions

Brand: MAHA

Model: RGA

Type: Operating instructions

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RGA

Mobile Column Lift

Original Operating Instructions

BA491901-en

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Contents

1 Safety ...................................................................................................................... 5

1.1 Introduction ......................................................................................................................................... 5

1.2 Symbols .............................................................................................................................................. 5

1.3 Intended Use ....................................................................................................................................... 5

1.4 Inappropriate Use ................................................................................................................................ 5

1.5 Requirements on Operating and Service Personnel ............................................................................. 5

1.6 Safety Instructions for Commissioning ................................................................................................. 5

1.7 Safety Instructions for Operation ......................................................................................................... 6

1.8 Safety Instructions for Servicing ........................................................................................................... 6

1.9 What to Do in the Event of Defects or Malfunctions ............................................................................. 6

1.10 What to Do in the Event of an Accident ............................................................................................... 6

1.11 Safety Features ................................................................................................................................... 7

1.11.1 Locking Device .................................................................................................................................... 7

1.11.2 Braking Motor ..................................................................................................................................... 7

1.11.3 Thermal Overload Protection ............................................................................................................... 7

1.11.4 Safety Shutdown after Motor Overload ................................................................................................ 7

1.11.5 Warning and Information Labels .......................................................................................................... 7

2 Description ............................................................................................................... 8

2.1 Design and Operating Principle ........................................................................................................... 8

2.2 Specifications ...................................................................................................................................... 9

2.3 Sample Nameplate ............................................................................................................................ 10

2.4 Noise Emission .................................................................................................................................. 10

3 Operation ............................................................................................................... 11

3.1 Initial Operation ................................................................................................................................. 11

3.2 Main Switch....................................................................................................................................... 11

3.3 Control Unit ....................................................................................................................................... 12

3.4 Positioning, Logging in and Interconnecting the Columns ................................................................. 14

3.5 Switching over to Group Mode .......................................................................................................... 15

3.6 Switching over to Single Mode .......................................................................................................... 15

3.7 Raising and Lowering ........................................................................................................................ 15

3.8 Shutdown .......................................................................................................................................... 16

3.9 Emergency-down Function, Mechanical ............................................................................................ 16

3.10 Handling / Moving the Columns ........................................................................................................ 17

3.11 Transverse Beam for Semitrailers ...................................................................................................... 18

4 Maintenance .......................................................................................................... 19

4.1 Annual Inspection .............................................................................................................................. 19

4.2 Care Instructions ............................................................................................................................... 19

4.3 Lubrication ........................................................................................................................................ 19

4.3.1 Lubricants ......................................................................................................................................... 19

4.3.2 Recirculating Ball Nut ........................................................................................................................ 20

BA491901-en

4.3.3 Moving Gear ...................................................................................................................................... 21

4.3.4 Options ............................................................................................................................................. 21

4.3.5 Thrust Washers ................................................................................................................................. 22

4.4 Setting the Hydraulic Jack ................................................................................................................. 25

4.5 Battery Charge Condition .................................................................................................................. 26

4.6 Troubleshooting ................................................................................................................................ 27

4.7 Spare Parts ....................................................................................................................................... 29

5 Service Lifetime ...................................................................................................... 29

6 Dismantling ............................................................................................................ 29

7 Disposal ................................................................................................................. 29

8 Contents of the Declaration of Conformity .............................................................. 29

9 Company Information ............................................................................................. 30

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BA491901-en

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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

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Important safety instructions. Failure to comply with instructions could result in personal injury or

property damage.

Important information.

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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 agricultural 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 manufacturer. In case of

non-compliance the declaration of conformity becomes void.

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1.4

Inappropriate Use

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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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All persons employed in the operation, maintenance, installation, removal and disposal of the de-

vice must

• be at least 18 years old,

• be trained and instructed in writing,

• have read and understood this manual

• be on record as having been instructed in safety guidelines.

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1.6

Safety Instructions for Commissioning

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• Use the lift on a hard, level surface only.

BA491901-en

• The standard lift version may 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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• Read the detailed operating manual.

• Lift operation by trained personnel over 18 years only.

• Do not exceed the rated load capacity per column as indicated on the lift nameplate.

• Ensure an unobstructed movement of lift and vehicle.

• After raising the vehicle briefly, stop and check the lift supports for secure contact with the ve-

hicle.

• Closely watch lift and vehicle during raising and lowering cycles.

• The working area which cannot be overviewed by the operator should be monitored by a sec-

ond 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 ex-

ceeds 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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• 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 certified electricians

only.

• Ensure that ecologically harmful substances are disposed of only in accordance with the ap-

propriate regulations.

• Do not use high pressure or steam jet cleaners. Use of caustic cleaning agents may damage

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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• In case of defects or malfunctions such as uncontrolled lift movement or deformation of the su-

perstructure, 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 band-

ages are kept. Seek first-aid.

BA491901-en

• 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 occa-

sion 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

Thermal Overload Protection

Overload protection via electronically monitored thermoswitches.

1.11.4

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.

1.11.5

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 inter-

connected (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 differ-

ent 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 a

standard three-phase connection.

•

Control

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

• Radio transmitter / receiver

• Drive unit

• Emergency stop switch

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2.2

Specifications

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RGA

RGA T

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BA491901-en

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RGA

RGA T

Load capacity per column 7500 kg 5000 kg

Full travel 1750 mm 1750 mm

Raising / Lowering time 113 s 113 s

Tyre diameter 900…1250 mm 600…2000 mm

Motor power 1.5 kW 1.5 kW

System of protection IP 54 IP 54

Control voltage 48 V 48 V

Charging voltage 230 V 230 V

Net weight per column 545 kg 637 kg

Surface load 0.5 N/mm2 0.5 N/mm2

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The properties indicated apply to lifts running at operating temperature.

Specifications are subject to change without notice.

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2.3

Sample Nameplate

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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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2.4

Noise Emission

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The sound pressure level is lower than 70 dB(A) in the working area of the operator.

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BA491901-en

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Operation

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3.1

Initial Operation

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

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3.2

Main Switch

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The main switch is used as emergency switch. In case of emergency turn it to position 0.

• Main switch in position 0: Power supply is interrupted

• Main switch in position 1: Lift is ready for operation

• When in position 0, the main switch can be protected against tampering

by means of a padlock.

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3.3

Control Unit

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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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3.4

Positioning, Logging in and Interconnecting the Columns

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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 Connect all columns to be used with the power supply.

It is possible to plug in either each column separately or a combination of not more than four col-

umns.

3 Turn the main switch to position 1.

 LED "Auto" flashes.

4 Select the transmission channel. All columns

belonging to the same unit must be set to

the same channel.

5 Confirm using the operating mode button.

 LED "Auto" lights up permanently.

6 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 corre-

sponds with the number of columns appearing on the display.

7 Once all columns are logged in, close the unit using button

"0/1".

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

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BA491901-en

3.5

Switching over to Group Mode

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1 Switch to Group mode using the operating

mode button on the desired columns.

 LED "Group" lights up permanently.

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3.6

Switching over to Single Mode

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1 Switch to Single mode using the operating

mode button on the desired column.

 LED "Single" lights up permanently.

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3.7

Raising and Lowering

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• 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 prob-

lems with other transmission channels.

• When operating the lift in Single or Group mode,

make sure the vehicle is not tilted. Otherwise the ve-

hicle may fall off the lift!

1 Press "Raise" or "Lower" button.

 Lift stops once button is released or end position is reached.

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BA491901-en

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3.8

Shutdown

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1 Before shutting down the lift, open the col-

umn unit using button "0/1".

 LED "Column unit" goes off.

2 Turn main switch to position 0.

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3.9

Emergency-down Function, Mechanical

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Authorized personnel only! Do not restart the lift before the error has been remedied.

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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 (2 in), until the lift is in bottom

position.

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1 2

BA491901-en

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3.10

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 col-

umn is ready for operation.

Position 2 is the neutral position.

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BA491901-en

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3.11

Transverse Beam for Semitrailers

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A Support plate with location hole for central pivot of semitrailer

B Lift points for support forks

1 Position transverse beam under central pivot (C) of semitrailer.

2 Lower semitrailer until central pivot is approx. 20 mm above support plate (A).

Do not load the rollers of the transverse beam with the weight of the semitrailer.

3 Check for alignment of central pivot and location hole. Adjust if required.

4 Position the columns.

5 Raise the semitrailer being sure the central pivot engages the location hole.

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BA491901-en

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Maintenance

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Danger! Electric shock hazard!

Before doing any maintenance work, turn off the main switch and protect it against tampering.

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4.1

Annual Inspection

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• The maintenance interval prescribed by the manufacturer is

12 (twelve) months

This maintenance interval refers to normal workshop usage. If the equipment is used more fre-

quently or under severe operating conditions (e.g. outdoors), the interval must be reduced ac-

cordingly.

• Maintenance work shall be done only by authorized and trained service technicians provided by

the manufacturer, licensed dealers or service partners.

• In case of non-compliance the manufacturer's warranty becomes void.

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4.2

Care Instructions

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• Periodically clean the equipment and treat it with a care product.

• Repair damage to the paintwork immediately to prevent corrosion.

• Usage of caustic cleaning agents or high pressure and steam jet cleaners may lead to equip-

ment damage.

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Regular care and maintenance is the key condition for functionality and long life expectancy of the

equipment!

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4.3

Lubrication

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4.3.1

Lubricants

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For lubrication use a mineral-oil based grease which is suitable for rolling bearings.

Do not use greases containing solid lubricants (such as graphite or MoS2.).

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BA491901-en

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4.3.2

Recirculating Ball Nut

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Twice a year grease the recirculating ball nut with 4…7 strokes from a grease gun. The lubricator is

located at the recirculating ball nut inside the carriage.

To make the lubricator accessible, remove the

screws (1 and 3). Then remove cover plate (4)

and fastening strip of rubber cover (2).

Fold down the rubber cover.

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