Würth 0900705158 Instructions for use

1
Art - 0900705158
Art - 0900705161
USER MANUAL
INSTRUCTIONS AND MAINTENANCE MANUAL
Art. No. 0900705158
Art. No. 0900705161
HYDRAULIC SCISSORS LIFT,
ON GROUND

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Catalog
Chapter 1 General Information 3
Chapter 2 Structure And Working Principle 4
Chapter 3 Installation Tools And Unpacking 6
Chapter 4 Installation 9
Chapter 5 Test 13
Chapter 6 Safety Rules for Electrical Control System 11
Chapter 7 Operation Instruction 15
Chapter 8 Troubleshooting 17
Chapter 9 Maintenance 18
Chapter 10 Storage and Scrapping 20
Chapter 11 Spare Parts 21

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Catalog
Chapter 1 General Information 3
Chapter 2 Structure And Working Principle 4
Chapter 3 Installation Tools And Unpacking 6
Chapter 4 Installation 9
Chapter 5 Test 13
Chapter 6 Safety Rules for Electrical Control System 11
Chapter 7 Operation Instruction 15
Chapter 8 Troubleshooting 17
Chapter 9 Maintenance 18
Chapter 10 Storage and Scrapping 20
Chapter 11 Spare Parts 21
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1 General Information
1.1 Application
This lift is designed for the purpose of lifting light vehicles under 3.5 tons for
vehicle test, service and cleaning。
1.2 Features
⚫The lift features advanced design, durability, compact layout.
⚫Surface installation and saving space.
⚫Hydraulic system keeps both platforms level.
⚫Mechanical protection device throughout the travel distance.
⚫Automatic lubricating system and oil-less bearings.
1.3 Specifications
Max
lifting
weight(k
g)
Max
lifting
height(
mm)
Up
time(s
)
Down
time(
s)
Power
(kw)
Numb
er of
platfor
m(pcs
)
Size for
platform
(mm)
Dead
weight(k
g)
Synchron
ization
Precision
(mm)
Height
differen
ce
(mm)
3500 1930
≤60 ≥20 2.2 2
1485x21
05×660 875 ＜40
≤8
Electric specifications:
Motor (Optional): 2.2kw
Voltage options according to different voltage
Single-phase/3-phase 220v/380v 50Hz
Noise
Noise: ≤70dB (A)
Hydraulic System
Max. Working Pressure: 28 MPa, Flow rate: ≥4.5L/min.
Pneumatic System
Working Pressure: 5 kgf/cm2
！Notice: At the bottom position, the max load of the lift is 1T。
1.4 Environment requirements
Temperature: 0℃~ +40℃
Relative Humidity: ≤80% at 30℃
Transportation/Storage Temperature: -25℃～+55℃
Altitude:≤2000m(78740″)

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2 Structure
2.1 Layout

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2 Structure
2.1 Layout
5

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2.2 Electrical Diagram
Pic.2
Lifting：press the up button SB1,the motor will drive the gear pump to provide the oil .and
then the cylinder will push the lift up.Loosen the button SB1,the lift will stop going up.If continue
press the SB1 button,the lift will raising to the Max height,the lift protect by the usage by the limit
switch or lowing valve
Insurance procedure:Press the insurance button SB3 ,the solenoid valve combine the line
YV1 and YV2,then the lift begin to go down.
Lowing procedure:Press the up button SB1,the lift will be up,then press the down
buttonSB2,solenoid valve combine the line YV1 and YV2, the lift begin to down

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2.2 Electrical Diagram
Pic.2
Lifting：press the up button SB1,the motor will drive the gear pump to provide the oil .and
then the cylinder will push the lift up.Loosen the button SB1,the lift will stop going up.If continue
press the SB1 button,the lift will raising to the Max height,the lift protect by the usage by the limit
switch or lowing valve
Insurance procedure:Press the insurance button SB3 ,the solenoid valve combine the line
YV1 and YV2,then the lift begin to go down.
Lowing procedure:Press the up button SB1,the lift will be up,then press the down
buttonSB2,solenoid valve combine the line YV1 and YV2, the lift begin to down
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2.3 Hydraulic working principle
Pic.3
Diagram of the hydraulic system
Pic.4
Connect the hose as Pic.4

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3 Install tools and unpacking
Please prepare the following regular tools to complete the installation and commissioning smoothly.
tools Specification
Iron Level meter L=400（15.7″）
Chalk line 10mm （0.4″）
Rotary hammer drill
Hammer 1.5 kg (3 lb)
Adjustable wrench 40mm（1.6″）
Open-end wrench kit 11mm-23mm（0.43″-0.9″）
Six square wrench set 2mm～12mm
Flat head screwdriver 150mm（5.9″）
Rotary hammer 20mm（0.8″）
Concrete drill-bit Φ18mm（0.71″）
frame level（JB3239-83）LxWxH＝300x40x300(11.8″x 0.16″x 11.8″)
3.1 Open the box
⚫Packed in one package,the control box ,oil hose ,and platform are all connected and tested.
⚫Open the package,remove the packing material to check the lift for any damage during the
transportation
⚫Place the packing material away from children to prevent any danger. Properly dispose of the
packing materials that may cause pollution

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3 Install tools and unpacking
Please prepare the following regular tools to complete the installation and commissioning smoothly.
tools Specification
Iron Level meter L=400（15.7″）
Chalk line 10mm （0.4″）
Rotary hammer drill
Hammer 1.5 kg (3 lb)
Adjustable wrench 40mm（1.6″）
Open-end wrench kit 11mm-23mm（0.43″-0.9″）
Six square wrench set 2mm～12mm
Flat head screwdriver 150mm（5.9″）
Rotary hammer 20mm（0.8″）
Concrete drill-bit Φ18mm（0.71″）
frame level（JB3239-83）LxWxH＝300x40x300(11.8″x 0.16″x 11.8″)
3.1 Open the box
⚫Packed in one package,the control box ,oil hose ,and platform are all connected and tested.
⚫Open the package,remove the packing material to check the lift for any damage during the
transportation
⚫Place the packing material away from children to prevent any danger. Properly dispose of the
packing materials that may cause pollution
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4 Installation
4.1 General Installation
Install the lift as the following steps
⚫The lifting machine can only be installed on the concrete floor, the minimum thickness of the
concrete slab is 200mm, and the minimum curing time is 7 days.
⚫The strength of the concrete ground should exceed 3000PSI (2.1kgf/mm2。
⚫the tolerance of the concrete floor levelness should not exceed 5mm (0.2”). Slight slope can
be corrected with shims. Excessive slope on the ground will greatly affect the performance of
the lift. In this case, new concrete slab should be made
⚫Inspect for possible hindrance such as low ceiling, overhead pipelines in the work area,
passageways and escapes. The working area of the lift should be 4.2m(165.4”) high to give
enough space.
⚫Allow enough space (1.5m/59”) at the front electrician.
⚫Power should be prepared before install. Electrical wiring should be conducted by certified
electrician.
Pic.5

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⚫It is default installation, the control unit could be installed at the right side of lift as well. The
installation should be performed by qualified people
⚫Program of ditch-type installation
4.2 Base Frame Installation
⚫Layout plan: Refer to the Total width 2120mm, drawing two parallel lines (1# and 2#) on the
concrete floor, the tolerance should less than 3mm (0.1”)
⚫Draw four parallel lines (a, b, c, d), vertical with 1# and 2#
⚫Follow the drawing, put two platforms into the frame. Pic.5
Attention ：
The base is the edge of Floor plate
The tolerance should less than 6mm (0.24”)
Drawing the frame is very important. Poor drawing will cause many problems about
assembly and operation
4.3 Control Desk Installation
⚫Place the control desk in place according to the ground layout.
⚫Use cover plate to protect the wires if there is no wire channel on the concrete floor
⚫Fill hydraulic oil into he oil tank (using oil dipstick to check the level). Pay special attention to
avoid dust and contaminants into the oil。
4.4 Control Desk Installation
⚫Open the control desk, connect the wires according to the electrical diagram。After check the
connection, switch on the power. Turn on the power supply switch which is on the panel of
control desk. The indict light will turn on.
⚫Power switch is needed, and installed near control desk. Cut the power when maintenance or
emergency. The damage
which is caused by wrong wire connection is not covered by warranty.
⚫Make sure the oil level is above the standard level. DO NOT operate the lift if oil tank is empty
⚫Fix all the oil hoses and press UP button, test the electrical parts: if motor does not operate,
abnormal sound, platform does not rise, motor is hot, STOP operating immediately and check
the wire connection.

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⚫It is default installation, the control unit could be installed at the right side of lift as well. The
installation should be performed by qualified people
⚫Program of ditch-type installation
4.2 Base Frame Installation
⚫Layout plan: Refer to the Total width 2120mm, drawing two parallel lines (1# and 2#) on the
concrete floor, the tolerance should less than 3mm (0.1”)
⚫Draw four parallel lines (a, b, c, d), vertical with 1# and 2#
⚫Follow the drawing, put two platforms into the frame. Pic.5
Attention
：
The base is the edge of Floor plate
The tolerance should less than 6mm (0.24”)
Drawing the frame is very important. Poor drawing will cause many problems about
assembly and operation
4.3 Control Desk Installation
⚫Place the control desk in place according to the ground layout.
⚫Use cover plate to protect the wires if there is no wire channel on the concrete floor
⚫Fill hydraulic oil into he oil tank (using oil dipstick to check the level). Pay special attention to
avoid dust and contaminants into the oil。
4.4 Control Desk Installation
⚫Open the control desk, connect the wires according to the electrical diagram。After check the
connection, switch on the power. Turn on the power supply switch which is on the panel of
control desk. The indict light will turn on.
⚫Power switch is needed, and installed near control desk. Cut the power when maintenance or
emergency. The damage
which is caused by wrong wire connection is not covered by warranty.
⚫Make sure the oil level is above the standard level. DO NOT operate the lift if oil tank is empty
⚫Fix all the oil hoses and press UP button, test the electrical parts: if motor does not operate,
abnormal sound, platform does not rise, motor is hot, STOP operating immediately and check
the wire connection.
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ATTENTION ：
High voltage in control desk, ground lead must be safe.
ATTENTION
8L oil is needed in the first use, fill the oil and make sure the oil level is above the standard
level.
4.5 Install anchor bolts
⚫Wrap the oil fittings, cable connections and joints of the lift to prevent dusts from getting in
⚫Raise the platforms to 1.5m, then install the anchor bolts
⚫Rotate the adjusting bolts, adjust the platform to same level, the equalization should less than
3mm (0.1”). Choose a right shim and place it under frame. Insert the shims at both sides of
anchor bolt
⚫Tighten out the nuts to fix the base frames on the floor
ATTENTION
Cautions: To ensure safety and performance, follow the installation procedures step by step
⚫Wear safety goggles。
⚫Use strong alloy drill bit with a diameter of 18mm（0.71″）. Do not use worn-out drill bit。
⚫Keep the hammer drill upright with the surface of the hole。
⚫Keep hammer drill going by itself. Do not apply extra pressure。
⚫The depth of the hole depends on the length of the bolt. It is advisable that the bolts above

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the base frames should be around 30mm (1.2”)。
⚫Remove the dust from the holes。
⚫Ta p the bolt into the hole, insert and hit the core until the bolt fully expands
Pic.9
⚫Adjust lever and height of platform,insert the right blots
⚫Tighten the nut using a torque wrench, and move the hand torque to 50n.m。

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the base frames should be around 30mm (1.2”)。
⚫Remove the dust from the holes。
⚫Ta p the bolt into the hole, insert and hit the core until the bolt fully expands
Pic.9
⚫Adjust lever and height of platform,insert the right blots
⚫Tighten the nut using a torque wrench, and move the hand torque to 50n.m。
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5 Test
5.1 Preparation before test
⚫Lubricate the moving surface of the roller with #2 lithium lubricant. Lubricant should be applied
evenly from left to right。
⚫Lubricate the joints of the lifts with #2 lithium lubricant。Fill tank full with Oil N32 or N46
5.2 Test step
⚫Check if all the connection bolts are tightly fastened。
⚫Press UP button, the platforms are raising; release the UP button, the platforms stop raising.
Press DOWN button, the platforms are lowering。
⚫If there is air in hydraulic system due to new installation, air bleeding performance is needed.
The air in the master cylinder can be bled after the platform goes up and down several times.
The air in the slave cylinder can be bled by following steps: lift Master Platform close to the
maximal height; unscrew the two exhaust screws severally. Screw the exhaust screw when
the all the air are ejected(Pic.9)
Attention：
Attention should be paid to the position of oil pipes and hydraulic hose when the
platforms move to the minimal height for the first time. Make sure they don not get
stuck with platforms moving downward
In order to clean up all the air in the cylinders, please raise the piston rod to the top line
for several times,Then the left and right platform will be just flatted

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6 Safety Rules for Electrical Control System
⚫Only personnel who are properly trained and have adequate knowledge and skill should
undertake all electrical/electronic troubleshooting and repair。
⚫Do not alter or bypass protective interlocks。
⚫Before starting, read and observe all warning labels。
⚫When trouble shooting make sure the power source has been disconnected and main switch
has been locked。
⚫Take extra precautions in damp areas to protect you from accidental grounding。
⚫Before applying power to any equipment it must be established, without a doubt, that all
persons are clear。
⚫Do not open the electrical control panel unless it is necessary to check the electrical
equipment。
⚫Do not alter the electrical circuits unless authorized to do so by the manufacturer。
⚫When replacing electrical components, make sure they conform to the manufacturer’s
specifications, including proper color coding。
⚫Do not wear metal frame glasses, metallic necklaces or chains while working on any electrical
equipment. Also do not wear any ring, watch or bracelet while operating electrical equipment。

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6 Safety Rules for Electrical Control System
⚫Only personnel who are properly trained and have adequate knowledge and skill should
undertake all electrical/electronic troubleshooting and repair。
⚫Do not alter or bypass protective interlocks。
⚫Before starting, read and observe all warning labels。
⚫When trouble shooting make sure the power source has been disconnected and main switch
has been locked。
⚫Take extra precautions in damp areas to protect you from accidental grounding。
⚫Before applying power to any equipment it must be established, without a doubt, that all
persons are clear。
⚫Do not open the electrical control panel unless it is necessary to check the electrical
equipment。
⚫Do not alter the electrical circuits unless authorized to do so by the manufacturer。
⚫When replacing electrical components, make sure they conform to the manufacturer’s
specifications, including proper color coding。
⚫Do not wear metal frame glasses, metallic necklaces or chains while working on any electrical
equipment. Also do not wear any ring, watch or bracelet while operating electrical equipment。
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7 Operation
7.1 Operation panel
Operation Instruction
Lifting process: Press UP button ,left right platform raising , Release the button ,
the platform will stop raise. .If continue press the button, the lift will raising to the limited
height then stop
Insurance procedure: Press the insurance button until reach to the limited height.
The platform will fall some distance, the insurance gear meshing to make safe
Lowering process: Press UP button , platform raise a little, safety claw is
unlocked, then press DOWN button , the platform begin to lower.
7.2 Preparatory Inspections
⚫Check for the synchronized and steady movement of the platforms
⚫Make sure the platforms would automatically stop when they reach the max lifting
height
⚫Check two if two platform up and down movement are consistently and smoothly
⚫Check for possible leakage in the cylinder, hoses and fittings Check for possible air
leakage in the solenoid valve, cylinder, pressure regulator valve and fittings
⚫Check for any abnormal action and sound in pump and motor

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7.3 Operational Procedures
⚫Keep speed below 5km/h when driving on the platforms。
⚫Stop the vehicle when the platforms are between its front and rear wheels
⚫Press UP button to lift the vehicle to 200mm~300mm from the floor
⚫Make sure that the two platforms are leveled and nothing unusual is found
⚫Keep pressing UP button until the vehicle rises to the required height
⚫After the maintenance is done, keep the work area clear and safe before lowering
lift
7.4 Safety Precautions
⚫The hydraulic relief valves are well-adjusted before leaving factory. The
manufacturer will not be responsible for any damage caused by unauthorized
adjustment。
⚫The lifts should be secured before personnel do under car job
⚫If the continuous rising height less than 1000 mm when raising, should be press
the button interval 30 s to vehicle and fell to the ground, otherwise the hydraulic
buffering device not to full effect.
⚫Place rubber pads on the platforms and spread them for maximal support
⚫In case of any leakage in the hydraulic system, fix the problem and refill the oil to
the proper level 。
⚫In the mesa distance base about 450 mm in height, lifting machine in decline
process will automatically stop once. This phenomenon is not lifting machine fault

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7.3 Operational Procedures
⚫Keep speed below 5km/h when driving on the platforms。
⚫Stop the vehicle when the platforms are between its front and rear wheels
⚫Press UP button to lift the vehicle to 200mm~300mm from the floor
⚫Make sure that the two platforms are leveled and nothing unusual is found
⚫Keep pressing UP button until the vehicle rises to the required height
⚫After the maintenance is done, keep the work area clear and safe before lowering
lift
7.4 Safety Precautions
⚫The hydraulic relief valves are well-adjusted before leaving factory. The
manufacturer will not be responsible for any damage caused by unauthorized
adjustment。
⚫The lifts should be secured before personnel do under car job
⚫If the continuous rising height less than 1000 mm when raising, should be press
the button interval 30 s to vehicle and fell to the ground, otherwise the hydraulic
buffering device not to full effect.
⚫Place rubber pads on the platforms and spread them for maximal support
⚫In case of any leakage in the hydraulic system, fix the problem and refill the oil to
the proper level 。
⚫In the mesa distance base about 450 mm in height, lifting machine in decline
process will automatically stop once. This phenomenon is not lifting machine fault
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8 Troubleshooting
Symptoms Reasons Solutions
The motor does
not work.
Check the molten core is
burned Voltage is not correct.
Fuse burning.
Motor is broken.
Reset molten core
Supply power of correct
voltage.
Change Fuse.
Change motor.
The motor works,
but the platforms
do not move.
The motor rotates in the wrong
direction.
Oil level is too low.
Oil leak.
Change wiring of motor to
change direction.
Add oil.
Check the oil hose.
The motor works,
but the platforms
can not lift the
vehicle.
The voltage to the motor is too
low.
Pressure of relief valve is not
right.
The lift is overloaded
The hydraulic pump is
damaged.
Supply motor with correct
voltage.
Adjust the pressure of relief
valve.
Check the weight of the
vehicle.
Replace the hydraulic pump.
Lowering speed is
slow.
There is foreign substance in
the lowering solenoid valve.
Lowering speed valve is turned
too low.
Clean the lowering solenoid
valve.
Turn the lowering speed
valve up.
Lifting speed is
slow or oil spill.
Oil and air are mixed. Change oil or eject air.
The platforms are
not synchronized.
One cylinder has much more oil
than another.
Adjust the oil in both
cylinders according to
manual.

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9Maintenance
9.1 Daily Maintenance
⚫Keep the lift clean. Make sure power is cut off before cleaning the lift。
⚫Keep the working area clean. Excessive dust in the work area will shorten the
lifespan of the lift。
⚫Before operation, inspect and keep all the safety devices of lift in order. If any
problems are found, adjust, maintain or replace the parts timely。
⚫Make sure that the pits are kept dry and clean。
⚫Inspect if there is leakage in the air valve and if it is well-lubricated
9.2 Monthly Maintenance
⚫Refasten the anchor bolts。
⚫Check all the hoses and fittings for possible wearing and leakage. If any leakage
is found to be caused by worn sealing parts, replace with parts meeting the
specifications。
⚫Check if the moving parts are well-lubricated with high-quality #2 lithium
lubricant。
⚫Apply #2 lithium lubricant on a monthly basis
9.3 Biannual Maintenance
⚫Check all the moving parts for possible wearing, interference and damage。
⚫Inspect the lubrication of all the rollers. If the roller is dragged along in lifting or
lowering, apply lubricant to the roller shaft。
⚫At the end of the first six months, clean the hydraulic system and replace the
hydraulic oil. Replace the hydraulic oil with N32 hydraulic oil in winter and N46 in
summer
9.4 Maintenance for 3 Years or 5000 Times Operations
⚫Replace the bushings at all joints。
⚫Replace all seals。
⚫Replace sliding blocks。

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9Maintenance
9.1 Daily Maintenance
⚫Keep the lift clean. Make sure power is cut off before cleaning the lift。
⚫Keep the working area clean. Excessive dust in the work area will shorten the
lifespan of the lift。
⚫Before operation, inspect and keep all the safety devices of lift in order. If any
problems are found, adjust, maintain or replace the parts timely。
⚫Make sure that the pits are kept dry and clean。
⚫Inspect if there is leakage in the air valve and if it is well-lubricated
9.2 Monthly Maintenance
⚫Refasten the anchor bolts。
⚫Check all the hoses and fittings for possible wearing and leakage. If any leakage
is found to be caused by worn sealing parts, replace with parts meeting the
specifications。
⚫Check if the moving parts are well-lubricated with high-quality #2 lithium
lubricant。
⚫Apply #2 lithium lubricant on a monthly basis
9.3 Biannual Maintenance
⚫Check all the moving parts for possible wearing, interference and damage。
⚫Inspect the lubrication of all the rollers. If the roller is dragged along in lifting or
lowering, apply lubricant to the roller shaft。
⚫At the end of the first six months, clean the hydraulic system and replace the
hydraulic oil. Replace the hydraulic oil with N32 hydraulic oil in winter and N46 in
summer
9.4 Maintenance for 3 Years or 5000 Times Operations
⚫Replace the bushings at all joints。
⚫Replace all seals。
⚫Replace sliding blocks。
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Hydraulic Oil Data
#2 Lithium Lubricant
Item Specifications
Conical degree（1/10mm）278
Dropping point ℃185
Erosion（T2 Copper Plate，100 ℃，24h）No Change
Copper Screening（100℃，22h）% 4
Evaporation（100℃，22h）% 2
Oxidizing Stability （99℃，100 h）0.2
Non-corrosibility（52℃，48）Grade 1
Foreign substance（Microscopic
method）/（number/cm³）
Above 10µm
Above 25µm
Above 75µm
Above 125µm
No more than 5000
No more than 3000
No more than 500
0
Relative Viscosity
（-15℃，10s-1 ）
,/(Pa·s)
＜800
Humidity Loss（38℃，1h）(%)
≤8
N32 Mechanic Oil (for winter)
Item Specifications
Moving Viscosity 40℃28.8～35
Pour /℃≤-15
Flash point /℃≥175
N46 Mechanical Oil (for summer)
Item Specifications
Moving Viscosity 40℃41.4～50.6
Pour /℃≤-9
Flash point /℃≥185

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10 Storage and Scrapping
10.1 Storage
When the lift needs to be stored for a long time
⚫Unplug from power socket
⚫Lubricate all the parts, including all the contact surface of the rollers。
⚫Bleed oil from tanks。
⚫Cover the lift with plastic hood。
10.2 Scrapping
When the lift has exceeded its lifespan and can not be used any more, disconnect it
from the electrical supply and dispose of as required by the local regulations