MAHA TWIN F IV 3.0 Series User manual

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TWIN F IV 3.0 | 3.5
Scissors Lift
Original Operating Instructions
BA083101-en
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TWIN F IV 3.0 A
TWIN F IV 3.0 U
TWIN F IV 3.5 A
TWIN F IV 3.5 U
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Contents
1Safety ......................................................................................................................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................................................................................................. 6
1.7 Safety Instructions for Operation ......................................................................................................... 6
1.8 Safety Instructions for Servicing........................................................................................................... 8
1.9 Safety Instructions for Handling Hydraulic Fluid ................................................................................... 8
1.10 Additional Safety Instructions for Lifts with Transport Frame for Mobile Use ........................................ 9
1.11 What to Do in the Event of Defects or Malfunctions........................................................................... 10
1.12 What to Do in the Event of an Accident ............................................................................................. 10
2Description.............................................................................................................11
2.1 General Information ........................................................................................................................... 11
2.2 Specifications .................................................................................................................................... 11
2.3 Sample Nameplate............................................................................................................................ 13
3Transport and Storage ...........................................................................................14
4Installation and Initial Operation ..............................................................................14
5Operation...............................................................................................................15
5.1 Main Switch....................................................................................................................................... 15
5.2 Controls and Indicators ..................................................................................................................... 15
5.3 Display Codes ................................................................................................................................... 16
5.4 Saving and Deleting the Maximum Lifting Height............................................................................... 16
5.5 Driving onto the Lift ........................................................................................................................... 17
5.6 Using Support Blocks........................................................................................................................ 17
5.6.1 Stacking Two Blocks on Top of Each Other ...................................................................................... 20
5.7 Raising and Lowering ........................................................................................................................ 20
5.8 Adjusting the Ramp........................................................................................................................... 21
5.9 Bleeding the Hydraulic System .......................................................................................................... 21
5.10 Manual Lowering............................................................................................................................... 21
5.11 Lift with Transport Frame for Mobile Use ........................................................................................... 22
6Maintenance ..........................................................................................................24
6.1 Maintenance Schedule ...................................................................................................................... 24
6.2 Care Instructions ............................................................................................................................... 24
6.3 Annual Inspection.............................................................................................................................. 25
6.4 Checking the Fluid Level.................................................................................................................... 25
6.5 Troubleshooting ................................................................................................................................ 26
6.6 Spare Parts ....................................................................................................................................... 26

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7Service Lifetime......................................................................................................27
8Dismantling ............................................................................................................27
9Disposal.................................................................................................................27
10 Contents of the Declaration of Conformity ..............................................................27
11 Company Information.............................................................................................28
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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 shall be used exclusively for the safe lifting of motor vehicles. Observe
the rated load capacity and load distribution.
•The lift shall 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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•The lift can be re-positioned on-site adhering to the mandatory ambient
conditions.
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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 mentally and physically suited for these activities,
•be at least 18 years old,

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•be 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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•The lift shall be installed and commissioned by authorised service personnel
only.
•Use personal protective equipment.
•All safety features must be checked for proper function at commissioning.
•The control desk (if present) shall not be installed in the danger zone of the lift.
•The standard lift version shall not be installed and commissioned in hazardous
locations, outdoors, in moist rooms (e.g. car wash) or outside a temperature
range of 5…40 °C (41…104 °F).
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1.7
Safety Instructions for Operation
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•Observe the detailed operating instructions.
•Observe all accident prevention regulations.
•Use personal protective equipment.
•The standard lift version shall not be operated in hazardous locations, outdoors,
in moist rooms (e.g. car wash) or outside a temperature range of 5…40 °C
(41…104 °F).
•To ensure safe operation, check the functionality of all safety devices before
using the lift.
•The control desk (if present) must be positioned in such a way that there is an
unobstructed view to the complete working area and the emergency stop can
be accessed at all times.
•All structural parts of the equipment must be visually checked at regular
intervals.
•Supply of suitable illuminating devices is the owner's/operator's responsibility.
•Do not allow anyone to stay in the danger zone when driving on or off the lift.
•Lifts with cylinder and runways: when lifting vehicles with a short wheelbase,
make sure that one axle is in front of the lifting cylinder, the other behind it.
•Lifts with wheel-free jack: before driving on or off the lift or wheel-free jack,
make sure the jack is in bottom position.
•If the operator is unable to see all parts of the danger zone, a trained second
person must monitor such areas.

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•Center the vehicle on the lift when it is in fully lowered position.
•After positioning the vehicle on the lift secure it against roll-off.
•Lifts with runways: make sure the vehicle tyres do not contact the roll-off
protection when raising or lowering the lift.
•Lifts with runways: modifications (such as usage of extensions) are permissible
only under the condition that the functionality of the roll-off protection is
maintained (protective position of ≥0.1 m above the runways).
•The load rating on the identification plate must not be exceeded.
•Keep the path of movement free of obstructions.
•Only use the vehicle manufacturer's recommended lift points.
•Only use lifting supports approved by the vehicle manufacturer.
•The vehicle must be lifted as a whole. usage of external hoisting and support
devices in combination with the lift must be approved by the manufacturer.
•Do not use the lift for transporting persons.
•Lifts with support arms or wheel-free jack: when raising the lift, all support
points at the vehicle body must be engaged at the same time.
•Lifts with support arms or swing arm jack: use one additional extender or one
support block only for each support point.
•Lifts with support arms or swing arm jack: check arm restraints for secure
engagement as soon as support arms contact vehicle lift points.
•Lifts with wheel-free jack: secure engagement of the vehicle must be ensured
by using appropriate means (e.g. lashing straps).
•After raising the vehicle briefly, stop and check the lift supports for secure
contact.
•Make sure the vehicle doors are closed during raising and lowering cycles.
•Make sure the parking brake is applied during raising and lowering cycles.
•Closely watch lift and vehicle during raising and lowering cycles.
•Do not allow anyone to stay in lift area during raising and lowering cycles.
•Lifts with support arms or wheel-free jack: after setting down the vehicle, check
the lift supports for secure contact before raising the vehicle again.
•Axle lift (if present): observe the installation instructions. Use both hands when
moving the axle lift. The axle lift must be in park position during raising and
lowering cycles.
•Axle lift (if present): the vehicle must be additionally secured against rolling off
while one axle is in a raised position.
•Do not allow anyone to climb up the lift or the raised vehicle.
•Before leaving the lift, fully lower the vehicle or secure it against accidental
lowering.
•Keep lift and vehicle free of tools and parts.
•Keep the lift and lift area clean. Risk of slippage on oily floors!

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•The main switch serves as emergency stop switch. In case of emergency turn it
to "0".
•Protect the lift against unauthorized usage by padlocking the main switch.
•Protect all parts of the electrical equipment from humidity.
•Use caution with operating vehicle engines. Danger of poisoning!
•When removing heavy vehicle components, the centre of gravity can change. In
such circumstances appropriate action must be taken as required.
•Residual risk: Tripping over runways of surface mounted lifts, tripping over
tools.
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1.8
Safety Instructions for Servicing
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•Use personal protective equipment.
•Service work must be done by authorized service technicians.
•Turn off and padlock the main switch before doing any repair, maintenance or
setup work.
•The system must be unpressurized during maintenance work.
•Work on pulse generators or proximity switches must be done by authorized
service technicians.
•Work on the electrical equipment must be done by service technicians or
qualified electricians.
•Ensure that ecologically harmful substances are disposed of in accordance with
the appropriate regulations.
•Do not use high pressure or steam jet cleaners. Do not use caustic cleaning
agents.
•The lift's safety devices must be set by authorized service technicians.
•Do not replace or override the safety devices.
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1.9
Safety Instructions for Handling Hydraulic Fluid
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•Neutralize hydraulic fluid spills with binder.
•Remove contaminated clothing immediately.
•Inhalation: If symptoms persist, seek medical treatment.
•Skin contact: Wash skin immediately with soap and water. If skin irritation
persists, seek immediate medical advice.
•Eye contact: Rinse thoroughly with water and seek medical advice.
•Ingestion: Do not induce vomiting. Seek immediate medical attention.
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1.10
Additional Safety Instructions for Lifts with Transport Frame for Mobile
Use
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•The lift shall not be exposed to direct, external weather conditions (snow, rain,
etc.).
•The lift shall not be erected, stored and commissioned in explosion- and fire-
endangered operating halls or in moisture-endangered rooms (wash halls).
Above and beyond this, storage is only allowed in enclosed rooms.
•The lift shall only be positioned and operated on an even surface.
•The maximum permissible inclination of the surface is 2 %.
•The underground surface shall be paved (cement, blacktop) and have sufficient
solidity to bear the load of the pressure forces that are created.
•The static friction between the underground and the lift contact surface shall be
sufficient to prevent sudden slipping. The lift shall not be used on snow-
covered, icy underground surfaces. The lift shall not be positioned and
operated on surfaces which have been contaminated with oil, gasoline or
lubricants.
•It is forbidden to operate the lift on unpaved surfaces (e.g. grass, gravel etc.).
•Clean up the underground surface which may endanger the solid stance of the
lift before erection (e.g. gravel, stones).
•No objects (wooden boards etc.) shall be laid under the lift to compensate for
uneven surfaces. In this case, another, safer erection spot shall be chosen.
•The lift’s erection surface shall be cleared and kept clean of any objects sticking
to it or any other impurities (gravel, oil).
•Before lifting a vehicle, the lift stability shall be checked by the operating
personnel.
•Vehicles shall only be lifted if the lift has been removed from the transport unit
(forklift, brakable dolly).
•An additional stroke length extension or lifting of the loaded lift is forbidden.
•The lift shall only be moved with suitable lifting and transport devices (ground
conveyor). The supports of the lifting and transport units shall fit to the supplied
transport frame. Only forklifts and dollies designed to meet valid machinery
directives shall be used.
•The forks of the used lifting and transport unit (ground conveyor) shall be
placed at least 1000 mm deep in the transport frame.
•The lift shall only be lifted using the transport frame. A different form of lifting is
not allowed.
•The proper securing of the operating unit for transport shall be done as shown
in the operating manual.
•The operating unit shall only be transported in the shown position.
•During transport the side of the control cabinet with a label attached to it shall
be in an up position.

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•Immediately after transport the control cabinet shall be placed in an upward
position. The lift shall not be stored with the control cabinet in a horizontal
position.
•Only one lift shall be transported at a time.
•The lift shall only be transported in its retracted position.
•The supplied retaining bracket shall be attached for the lift transport.
•No other objects shall be placed and/or transported on the lift during transport.
•The valid accident prevention and safety regulations of the respective transport
device shall be adhered to for the load security and transport.
•Movable forks which are part of the transport unit shall be locked.
•Only lifting and transport units (e.g. manual dolly, forklift) with driving and
parking brakes for controlled driving shall be used.
•The lifting and transport unit shall have a load capacity of at least 1000 kg.
•Using manual force the lift shall only be moved on an even surface (maximum
inclination 2 %).
•Secure the lift against unintended movement using the parking brake if it
remains on the lifting and transport unit after transporting.
The lift shall not be stored for a longer time period in a raised position on the
transport unit.
•It is prohibited to move the lift on slippery (e.g. snow-covered) ground.
•When moving the lift or during normal operation never pinch or kink the
hydraulic hoses.
•Never drive over the hoses with a vehicle, dolly etc.
•No objects shall be placed on the hoses.
•Damaged or leaking hoses shall be replaced immediately.
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1.11
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.
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1.12
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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Description
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2.1
General Information
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This lift model is equipped with two support plates mounted to a scissors
structure. The drive system consists of four hydraulic cylinders with hydraulic
power unit. The lift is operated via an electric dead man's type control using
pushbuttons, synchronization is achieved through a cable control system.
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2.2
Specifications
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3.0 A 3.5 A
Fuse (time-delay) 16 A
Working temperature range 5…40 °C
Support plate width 605 mm
Support plate length 1550 mm
Support plate length max. 2100 mm
Working pressure, hydraulic 260 bar
Overall width (recommended) 1955 mm
Shipping weight 800 kg
Lifting height max. 1900 mm
Raising time, load-dependent approx. 40 s
Hydraulic power unit 3.6 kW
Hydraulic fluid qty. 9 l
Noise emission < 70 dB(A)
Mains frequency 50 Hz
Mains voltage 400 V
Phases 3
Pinch point protection Audible warning signal
Lowering time, load-dep. approx. 40 s
Load capacity 3000 kg 3500 kg
Drive-over height 105 mm
Shipping dimensions W x H x L 750 x 700 x 1960 mm

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3.0 U 3.5 U
Fuse (time-delay) 16 A
Working temperature range 5…40 °C
Support plate width 605 mm
Support plate length 1550 mm
Support plate length max. 2100 mm
Working pressure, hydraulic 260 bar
Installation depth 115 mm
Overall width (recommended) 2000 mm
Shipping weight 800 kg
Lifting height max. 1885 mm
Raising time, load-dependent approx. 40 s
Hydraulic power unit 3.6 kW
Hydraulic fluid qty. 9 l
Noise emission < 70 dB(A)
Mains frequency 50 Hz
Mains voltage 400 V
Phases 3
Pinch point protection Audible warning signal
Lowering time, load-dep. approx. 40 s
Load capacity 3000 kg 3500 kg
Shipping dimensions W x H x L 750 x 700 x 1960 mm

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2.3
Sample Nameplate
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Lifts of this model series have one nameplate each at the control desk and on the
bottom side of both support plates. 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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SCISSORS LIFT
Ser. No. / Date of Production: ***
Project: ***
Model and Version: ***
Supply Voltage: ***
Frequency: ***
Rated Current: ***
Fuse Protection: ***
Load Capacity: ***
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14
BA083101-en
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3
Transport and Storage
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Check package to ensure it is complete, in accordance with the order
confirmation. Report any transport damage to the carrier immediately.
During loading, unloading and transport always use suitable lifting equipment,
material handling equipment (e.g. cranes, forklifts, etc.) and the right load handling
attachments and slings. Always ensure that the parts to be transported are
suspended or loaded properly so that they cannot fall, taking into account size,
weight and the centre of gravity.
Store the packages in a covered area, protected from direct sunlight, at a low
humidity and with temperatures between 0...+40 °C (32…104 °F). Do not stack
packages.
When unpacking, take care to avoid any possibility of injury or damage. Keep at a
safe distance when opening the package strapping, do not allow any parts to fall
out.
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4
Installation and Initial Operation
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Installation and commissioning of the equipment must be carried out by specially
trained personnel, authorised for the task. Specialist personnel includes
authorised, trained skilled staff from the manufacturer, the dealer and the relevant
service partners.
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5
Operation
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5.1
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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5.2
Controls and Indicators
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A LED Display: Operating Status
The operating status is indicated by
red, yellow and green LEDs. See also
section "Troubleshooting".
C Button: Lower
When this button is pushed, lift
lowers until button is released or
lower limit stop is reached.
B Button: Raise
When this button is pushed, lift raises
until button is released or upper limit
stop is reached.
D Button:
used for saving/deleting the
maximum lifting height
E Main Switch
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5.3
Display Codes
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LED Code
RED
YEL
LO
W
GRE
EN
--- --- Lighting Ready for operation
Lighting Flashing 4x --- Undervoltage
Lighting Flashing 5x --- Height offset too large
Lighting Flashing 6x --- Internal keyboard defective
Lighting Flashing 8x
to 30x --- Contact service
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5.4
Saving and Deleting the Maximum Lifting Height
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Saving the Maximum Lifting Height
Optional, with software V2.26 and higher.
1
Position lift at desired height.
2
Main switch OFF.
3
+
Push and hold these buttons, then main switch ON.
Green LED flashing, maximum lifting height is saved.
Deleting the Maximum Lifting Height
Optional, with software V2.26 and higher.
1
Main switch OFF.
2
+
Push and hold these buttons, then main switch ON.
Green LED flashing, maximum lifting height is deleted.
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5.5
Driving onto the Lift
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1 Make sure the ramps are locked
before driving onto the lift!
2 Approach and exit the lift very slowly!
The chassis of low vehicles may hit
the floor.
3 Observe correct approach direction!
Do not engage the vehicle
perpendicular to lift!
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5.6
Using Support Blocks
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1 The support blocks are approved for usage on lifts with a rated load capacity of
3,500 kgs.
2 Always use four original MAHA support blocks of identical size and shape.
3 Do not use support blocks with cracks, broken-off pieces or other damage.
4 Check that all support blocks and rubber pads are free of oil, grease, dirt or
debris.
5 Place the support blocks under the vehicle manufacturer‘s recommended lift
points.
6 Note correct positioning of the support blocks.
7 Raise the vehicle until the tyres clear the floor. Stop and recheck the lift
supports for secure contact with the vehicle body.
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The support block must be placed fully on the surface without extending byond
the edges.
A Extension B Support surface; available are:
– Granulate coating
– Granulate foil
– Rubber plate
C Support block
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A
C
B
B
A
C

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Diagonal positioning is permissible only with granulate coated surfaces (a). If
knobbly pads are used, these must mesh with the support blocks (b).
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a
a
b

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5.6.1
Stacking Two Blocks on Top of Each Other
Only the “DUO“ hard rubber blocks (VZ 975074) and the ductile plastic blocks (VZ
970045) may be stacked on top of each other, but not more than two blocks per
lifting point.
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5.7
Raising and Lowering
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1 Turn the main switch to position 1.
•Lift is ready for operation.
2 Push and hold the RAISE button until the lift reaches the desired height.
•Lift stops once button is released or upper limit stop is reached.
3 Push and hold the LOWER button until the lift reaches the desired height.
•Lift stops once button is released or CE-Stop is reached.
4 To lower the lift completely, release the LOWER button and push it again.
•The remaining lift travel to the lower limit stop is accompanied by an audible
indicator.
Risk of injury!
Before lowering the lift to bottom position, verify that there are no persons or
obstructions in the danger area.
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