MAHA MCL Operating instructions

Brand: MAHA

Model: MCL

Type: Operating instructions

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MCL

Mobile Column Lift

Original Operating Instructions

BA491201-en

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Contents

1 Safety ...................................................................................................................... 4

1.1 Introduction ......................................................................................................................................... 4

1.2 Symbols .............................................................................................................................................. 4

1.3 Intended Use ....................................................................................................................................... 4

1.4 Inappropriate Use ................................................................................................................................ 4

1.5 Requirements on Operating and Service Personnel ............................................................................. 4

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

1.7 Safety Instructions for Operation ......................................................................................................... 5

1.8 Safety Instructions for Servicing ........................................................................................................... 5

1.9 What to Do in the Event of Defects or Malfunctions ............................................................................. 5

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

1.11 Safety Features ................................................................................................................................... 6

1.11.1 Locking Device .................................................................................................................................... 6

1.11.2 Braking Motor ..................................................................................................................................... 6

1.11.3 Thermal Overload Protection ............................................................................................................... 6

1.11.4 Safety Shutdown after Motor Overload ................................................................................................ 6

1.11.5 Warning and Information Labels .......................................................................................................... 6

2 Description ............................................................................................................... 7

2.1 Design and Operating Principle ........................................................................................................... 7

2.2 Specifications ...................................................................................................................................... 8

2.3 Sample Nameplate .............................................................................................................................. 9

2.4 Noise Emission .................................................................................................................................... 9

3 Operation ............................................................................................................... 10

3.1 Handling / Moving the Columns ........................................................................................................ 10

3.2 Initial Operation ................................................................................................................................. 11

3.3 Main Switch....................................................................................................................................... 11

3.4 Control Unit ....................................................................................................................................... 12

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

3.6 Switching over to Group Mode .......................................................................................................... 15

3.7 Switching over to Single Mode .......................................................................................................... 15

3.8 Raising and Lowering ........................................................................................................................ 15

3.9 Shutdown .......................................................................................................................................... 16

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

3.11 Transverse Beam for Semitrailers ...................................................................................................... 17

4 Maintenance .......................................................................................................... 18

4.1 Annual Inspection .............................................................................................................................. 18

4.2 Care Instructions ............................................................................................................................... 18

4.3 Spare Parts ....................................................................................................................................... 18

4.4 Maintenance by the Operator ............................................................................................................ 19

4.4.1 Checking the Load Nut for Wear ....................................................................................................... 19

BA491201-en

4.4.2 Greasing the Load Nut ...................................................................................................................... 20

4.4.3 Greasing the Support Bearing of the Lifting Screw and the Moving Gear .......................................... 21

4.5 Setting the Hydraulic Jack ................................................................................................................. 22

5 Troubleshooting ..................................................................................................... 23

6 Service Lifetime ...................................................................................................... 24

7 Dismantling ............................................................................................................ 24

8 Disposal ................................................................................................................. 24

9 Contents of the Declaration of Conformity .............................................................. 24

10 Company Information ............................................................................................. 25

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BA491201-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

device 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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BA491201-en

1.6

Safety Instructions for Commissioning

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

• 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

vehicle.

• 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

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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• 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

appropriate 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

superstructure, support or lower the lift immediately.

• Turn off the main switch and secure it against unauthorized usage. Contact service.

BA491201-en

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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

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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BA491201-en

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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 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.

•

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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BA491201-en

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2.2

Specifications

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MCL/RGB

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BA491201-en

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MCL / RGB

Load capacity per column 5500 kg

Full travel 1750 mm

Raising / Lowering time 150 s

Tyre diameter 900…1250 mm

Fuse protection per column 5 A

Motor power 2.2 kW

Protective system IP 54

Supply voltage 3~ 380/220 V; 50 Hz

Net weight per column 400 kg

Surface load 0.3 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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BA491201-en

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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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BA491201-en

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3.2

Initial Operation

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

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3.3

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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BA491201-en

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3.4

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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BA491201-en

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BA491201-en

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3.5

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

columns.

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

corresponds 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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BA491201-en

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3.6

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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3.7

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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3.8

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

problems with other transmission channels.

• When operating the lift in Single or Group mode,

make sure the vehicle is not tilted. Otherwise the

vehicle 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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BA491201-en

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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".

 LED "Column unit" goes off.

2 Turn main switch to position 0.

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3.10

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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Pos: 76 / Techn ische Dokument ation/ Hebetech nik/ 49 Radgr eifer-H ebebü hnen/12 01 MCL/ BA/I nha lt: 49 12 No tab-F unkt ion, m ech anisc h (T ext) MCL / RG B @ 15\mod_1243953772273_75.docx @ 384941 @ @ 1

In case of power failure or defects the lift can be lowered manually. The lift may only be lowered,

not raised.

1 Remove the fan cowl from the motor.

2 Screw a hex head cap screw M8x10 into the thread inside the motor shaft.

3 Place a suitable socket on the screw and turn it in clockwise direction using a hand drill, until

the carriage has lowered approx. 50 mm.

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

position.

5 After the error has been remedied, perform an emergency-down to reinitialize the control, or

contact your service representative.

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BA491201-en

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3.11

Transverse Beam for Semitrailers

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Pos: 80 / Techn ische Dokument ation/ Hebetech nik/ 49 Radgr eifer-H ebebü hnen/00 01 Rad greifer-H ebebü hnen A lle/Inh alte/In halt: Auf nahmetr aver se für Sattela uflieger (Tex t) @ 15\mod_1243954387004_75.docx @ 384993 @ @ 1

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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BA491201-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

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

accordingly.

• 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

equipment 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

Spare Parts

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To ensure safe and reliable operation, only use original spare parts supplied by the equipment

manufacturer.

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BA491201-en

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4.4

Maintenance by the Operator

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4.4.1

Checking the Load Nut for Wear

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 Maintenance interval: 12 months

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Shut down and lock the lift until the worn-out load nut has been replaced.

Pos: 97 / Techn ische Dokument ation/ Hebetech nik/ 49 Radgr eifer-H ebebü hne n/12 01 MC L/BA/I nha lt: 4912 Tr agmu tter ver schlei ß pr üfen M CL/ RGB @ 6\m od_11 78543 83751 5_75. docx @ 91 396 @ @ 1

1 Lower the carriage to bottom position.

2 Remove the cap plug from the inspection window (arrow).

3 Check the clearance between check screw (A) and safety nut (B). New load nuts have a

clearance of approx. 2 mm. If no clearance can be detected, the load nut is worn out and must

be replaced together with the safety nut.

4 At completion of wear check reinstall the cap plugs.

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The correct setting of the clearance between wear check screw and safety nut is imperative for

proper functionality and safety of the lifting screw and load nut system.

If the clearance is not set properly when installing the new load nut, the wear and tear on the load

nut can no longer be reliably checked. In this case, the safe operation of the lift can no longer be

guaranteed.

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BA491201-en

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4.4.2

Greasing the Load Nut

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 Maintenance interval: 6 months

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1 Lower the carriage to bottom position.

2 Remove the cap plug from the lubricating window (arrow).

3 Grease the load nut through the lubricating nipple using a grease gun.

4 Run the lift through a full raising and lowering cycle to distribute the grease evenly on the lifting

screw.

5 Repeat the lubrication procedure twice or three times.

6 At completion of lubrication reinstall the cap plugs.

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