twin busch TW S3-18U Guide

Installation, Operation and Parts Manual
TW S3-18U
Short Platform Scissor Lift
In-ground Installation
Manual Leveling
Lifting Capacity 3000KG
Please read the entire manual before installation and operation

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INDEX
1. Important safety instructions………………………………………….……………...3~4
1.1 Important notices
1.2 Qualified personnel
1.3 Danger notices
1.4 Training
1.5 Warning signs
2. Overview of the lift………………………………………………….……………………….5
2.1 General descriptions
2.2 Technical data
2.3 Construction of the lift
3. Installation instructions………………………………………………………………..….6~7
3.1 Preparations before installation
3.1.1 Tools and equipments needed
3.1.2 A list for parts checking
3.1.3 Ground conditions
3.2 Precautions for installation
3.3 Installation
3.4 Items to be checked after installation
4. Operation instructions………………………………………………………………….….8~10
4.1 Precautions
4.2 Descriptions of control box
4.3 Flow chart for operation
4.4 Operating instructions
4.5 Emergency lowering in case of no power
5. Trouble shooting………………….…………………………………………………………….. 11
6. Maintenance……………………………………………………….……………………………….12
7. Annex…………………………………………………….……………………………………….13~28
Annex1, Packing list of the whole lift
Annex2, Overall diagram
Annex3, Floor plan
Annex4, Diagram for oil hose connection
Annex 5, Hydraulic working system
Annex6, Wiring diagram
Annex7, Diagram for air supply connection
Annex8, Separated drawings for the lift
Annex9, Spare parts list
Please read this entire manual carefully and completely before installation or operation of the lift.

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IMPORTANT SAFETY INSTRUCTIONS
1.1 Important notices
We will offer one-year's quality warranty for the whole machine，during which any quality problem will be properly solved to the user's satisfaction.
However, we will not take any responsibility for whatever bad consequence resulted from improper installation and operation, overload running or
unqualified ground condition. This model is specially designed for lifting motor vehicles that weighs within its outmost lifting capacity. Users are not
allowed to use it for any other purposes. Otherwise, we, as well as our sales agency, will not bear any responsibility for accidents or damages of the lift.
Make sure to pay careful attention to the label of the lifting capacity attached on the lift and never try to lift cars with its weight beyond. Read this manual
carefully before operating the machine so as to avoid economic loss or personnel casualty incurred by wrong operation. Without our professional advice,
users are not permitted to make any modification to the control unit or whatever mechanical unit.
1.2 Qualified personnel
1.2.1 Only these qualified staff, who have been properly trained, can operate the lift.
1.2.2 Electrical connection must be done by a competent electrician.
1.2.3 People who are not concerned are not allowed in the lifting area.
1.3 Danger notices
1.3.1 Do not install the lift on any asphalt surface.
1.3.2 Read and understand all safety warnings before operating the lift.
1.3.3 Do not leave the controls while the lift is still in motion.
1.3.4 Keep hands and feet away from any moving parts. Keep feet clear of the lift when lowering.
1.3.5 Only these properly trained personnel can operate the lift.
1.3.6 Do not wear unfit clothes such as large clothes with flounces, tires, etc, which could be caught by moving parts of the lift.
1.3.7 To prevent evitable incidents, surrounding areas of the lift must be tidy and with nothing unconcerned.
1.3.8 The lift is simply designed to lift the entire body of vehicles, with its maximum weight within the lifting capacity.
1.3.9 Always insure the safety locks are engaged before any attempt to work near or under the vehicle. Never remove safety related
components from the lift. Do not use if safety related components are damaged or missing.
1.3.10 Do not rock the vehicle while on the lift or remove any heavy component from vehicle that may cause excessive weight shift.
1.3.11 Check at any time the parts of the lift to ensure the agility of moving parts and the performance of synchronization. Ensure regular
maintenance and if anything abnormal occurs, stop using the lift immediately and contact our dealers for help.
1.3.12 Lower the lift to its lowest position and do remember to cut off the power source when service finishes.
1.3.13 Do not modify any parts of the lift without manufacturer’s advice.
1.3.14 If the lift is going to be left unused for a long time, users are required to:
a. Disconnect the power source;
b. Empty the oil tank;
c. Lubricate the moving parts with hydraulic oil.
1.4 Training
Only these qualified people, who have been properly trained, can operate the lift. We are quite willing to provide professional training for
the users when necessary.
Attention: For environment protection, please dispose the disused oil in a proper way.

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1.5 Warning signs
All safety warning labels are clearly depicted on the lift to ensure that the operator is aware of dangers during operation.
Warning labels should be kept clean and replaced when damaged or missing.
Please read the instruction
manual and saftey warnings
before using!
Repairs and maintenancem
only by qualied personnel,
do not tamper with lift
safety devices!
Always keep escape
routes free!
Use of the lift by qualied
personnel only!
No persons under the lift
(when lifting or lowering)!
No persons under the lift
(when lifting or lowering)!
Danger of crushing
by lifting or lowering!
Avoid excessive
shaking of the vehicle!
No obsticles under the
lift when in use!
Never try to lift using
only one side of the lift!
Ensure that the vehicle
weight displacement
is correct!
ATTENTION!
Danger of shock!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!
ATTENTION!

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OVERVIEW OF THE LIFT
2.1 General descriptions
This model is in-ground mounted and is mainly composed by two lifting platforms, two base plates, two oil cylinders and a set of power
unit. The gear pump works when power supply is connected and meanwhile oil in the pump will push upwards the pistons of oil cylinders.
Thus, scissor brackets of the lift rise accordingly. In the process of rising, the mechanical lock will automatically engaged so as to avoid
sudden drop down caused by failure of hydraulic system.
Besides, designs like, 24V working voltage of control box and limit switch, low-height alarming buzzer, anti-surge valves, etc have fully
considered your personal security.
Safety structure:
2.2 Technical data
Model
Lifting capacity
Lifting time
Lifting height
Electrical requirement
TW S3-18U
3000kg
50 Sec
1820mm
400V, Three Phrase
2.3 Construction of the lift

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INSTALLATION INSCTRUCTIONS
3.1 Preparations before installation
3.1.1 Tools and equipments needed
√ Electrical drill
√ Open wrenches
√ Screw drivers
√Adjustable spanner
3.1.2 List for parts checking ---Annex 1（Packing list）
Unfold the package and check if any parts missed as per Annex 1. Do not hesitate to contact us in case any parts missed, but if you do not
contact us and insist installing upon the lack of some parts, we as well as our dealers will not bear any responsibility for this and will
charge for any parts subsequently demanded by the buyer.
3.1.3 Ground conditions
The lift should be fixed on a smooth and solid concrete ground with its strength more than 3000psi, tolerance of flatness less than 5mm
and minimum thickness of 200mm. In addition, newly built concrete ground must undergo more than 28days’ cure and reinforcement.
3.2 Precautions for installation
3.2.2 Joints of oil hose and wiring must be firmly connected in order to avoid leakage of oil hose and looseness of electrical wires.
3.2.3 All bolts should be firmly screwed up.
3.2.4 Do not place any vehicle on the lift in the case of trial running.
3.3 Installation
Step1: Choose installation site.
Use a fork lift to place the machine at installation site as required. See Annex 3 for space requirements on the installation site.
Step 2: Connect oil hoses.
Connect oil hoses as per the diagram for oil hose connection and the following pictures. (This step is very important and it is quite
necessary to understand the diagram of oil hose connection in Annex 4 before operation)

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Step 3: Connect the pneumatic release system by referring the following pictures.
Connect the pneumatic release system by referring the following pictures.
Notes: Air hose 1 is to be connected between the compressed air supply and air filter.
Air hose 3 is to be connected between two pneumatic solenoid valves on the control box and the drive oil cylinder.
Air hose 4 is to be connected with the pneumatic solenoid valve on the other cylinder.
Step 4: Connect limit switch.
Connect the power supply and the two quick plugs of the limit switch.
Step 5: Fill hydraulic oil.
Pour 16 liters of anti-abrasion hydraulic oil into the oil tank. The level of oil shall be 10mm to 40mm distance from the top of the tank.
(You may measure by the feeler attached on the cover of the tank)
Step 6: Leveling
Manual leveling：
1) Connect the power supply and switch on the power button on the control panel until the green indicator light shines.
2) Switch the option switch in the control box to working condition and press the “UP” button for 30 seconds. Normally at least one of
the platforms will rise at this movement. (In the case the machine is equipped with three phase power supply and the motor works but
the platform does not move upwards after the “UP” button has been pressed for 30 seconds, the operators needs to change the phase
order of the motor’s wiring)
3) Manually open the valve in the control box by moving the handle pointing opposite to the hydraulic block and then you can press the
“UP” or “DOWN” button to adjust the height of the assistant platform until it reached the same height as the main platform. Close the
valve by removing the handle to its initial position and press the “UP” and “DOWN” button to check the synchronization of the two
platforms. If synchronization is still not achieved, repeat the above leveling steps until synchronization reached.
3.4 Items to be checked after installation.
S/N
Check items
YES
NO
1
Are two platforms adjusted with the same level?
2
Are oil hose tightly connected?
3
Are all electric connections correct?
4
Are valves of the pump unit oil tight?
OPERATION INSTRUCTIONS

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4.1 Precautions
4.1.1 Check all the joints of oil hose. Only when there is no leakage, the lift can start work.
4.1.2 The lift, if its safety device malfunctions, shall not be used.
4.1.3 The machine shall not lift or lower an automobile if its center of gravity is not positioned midway of the rising platforms. Otherwise,
we as well as our dealers will not bear any responsibility for any consequence resulted thereby.
4.1.4 Operators and other personnel concerned should stand in a safety area during lifting and lowering process.
4.1.5 When platforms being raised to the desired height, switch off the power at once to prevent any wrong operation done by
unconcerned people.
4.1.6. Make sure the safety lock of the lift is engaged before start working under the vehicle and no people under the vehicle during
lifting and lowering process.
4.2 Descriptions of control box

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Turn on the power switch
Press UP button
Motor drives the gear pump work
The lift is raised
Cylinder piston drives the platform move up
Press the DOWN button
The lift is lowered
Turn on the power switch
4.3 Flow chart for operation
4.4 Operation instructions
Raise the lift
1. Make sure that you have read and understood the operation manual before operation.
2. Drive and park the vehicle midway between two platforms.
3. Place the four rubber pads under the prop-points of the vehicle and ensure car’s gravity have fallen on the rubber pads.
4. Press the “UP”button on the control box until rubber pads have touched the prop-points of vehicle.
5. Keep on pressing the ”UP” button to lift the vehicle a bit higher from the ground and check again if the vehicle is in a safe position.
6. Having raised the vehicle to the required height, operators must press down the safety lock button to ensure the mechanical safety lock
is engaged. Press the “Emergency Stop ”until the power indicator is off and check again the stability before performing maintenance or
repair work,
Lower the lift
1. Switch on.
2. Press the “DOWN I “button to lower the lift. It will stop lowering when clearance between the platforms and the ground reached to
500mm.
3. Press “DOWN II”button to continue lowering the platforms. Alarming buzz will be heard unless you stop pressing”DOWN II”.
4. Drive the vehicle away
4.5 Emergency lowering in case of no power
Pneumatic lock is not engaged
1. Pull up the safety teeth with steel rope to release the safety lock.
Raising
Lowering

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2. Screw loose the core of the solenoid unloading valve fixed on the hydraulic block.
Pneumatic safety lock is engaged.
1. Take down the removable plug from the hydraulic block.
2. Connect the optional hand pump to hydraulic block at the point where the removable plug used to be fitted.

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3. Press the handle of the optional hand pump to raise the platform to have the safety teeth unlocked. Then, pull up the safety teeth with
steel rope to release the safety lock.
4. Screw loose the core of solenoid unloading valve fixed on the hydraulic block.

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TROUBLE SHOOTING
ATTENTION: If the trouble could not be fixed by yourself, please do not hesitate to contact us for help .We will offer our service at the
earliest time we can. By the way, your troubles will be judged and solved much faster if you could provide us more details or pictures of
the trouble.
TROUBLES
CAUSE
SOLUTION
Motor does not run and
will not raise
The wire connection is loose.
Check and make a good connection.
The motor is burnt
Replace it.
The limit switch is damaged or the wire
connection is loose.
Connect it or adjust or replace the limit
switch.
Motor runs but will not
raise
The motor run reversely.
Check the wire connection.
Overflow valve is loose or jammed.
Clean or adjust it.
The gear pump is damaged.
Replace it.
Oil level is too low.
Add oil.
The oil hose became loose or dropped off.
Tighten it.
The cushion valve became loose or jammed.
Clean or adjusts it.
Platforms go down slowly
after being raised
The oil hose leaks.
Check or replace it.
The oil cylinder is not tightened.
Replace the seal.
The single valve leaks.
Clean or replace it.
The overflow valve leaks.
Clean or replace it.
Electrical unloading valve leaks.
Clean or replace it.
Raising too slow
The oil filter is jammed.
Clean or replace it.
Oil level is too low.
Add oil.
The overflow valve is not adjusted to the right
position.
Adjust it.
The hydraulic oil is too hot (above 45°).
Change the oil.
The seal of the cylinder is abraded.
Replace the seal.
Lowering too slow
The throttle valve jammed.
Clean or replace.
The hydraulic oil is dirty.
Change the oil.
The anti-surge valve jammed.
Clean it.
The oil hose jammed.
Replace it.

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MAINTENANCE
Easy and low cost routine maintenance can ensure the lift work normally and safely. Following are requirements for routine maintenance.
You may choose the frequency of routine maintenance by consulting your lift’s working conditions and time.
The following parts need to be lubricated.
6.1. Daily checking items before operation
The user must perform daily check. Daily check of safety system is very important –the discovery of device failure before action could
save your time and prevent you from great loss, injury or casualty.
·Check whether oil hose well connected. No leakage is allowed.
·Check the electric connections .Make sure all connections are in good condition.
·Check whether the expansion bolts well anchored.
·Check if safety teeth and safety block matched well or not.
6.2. Weekly checking items
·C heck the flexibility of moving parts.
· Check the working conditions of safety parts.
· Check the amount of oil left in the oil tank. Oil is enough if the carriage can be raised to highest position. Otherwise, oil is insufficient.
·Check whether the expansion bolts well anchored.
6.3. Monthly checking items
·Check whether the expansion bolts well anchored.
· Check the tightness of the hydraulic system and screw firm the joints if it leaks.
·Check the lubrication and abrasion circumstance of moving parts.
6.4. Yearly checking items
·Empty the oil tank and check the quality of hydraulic oil.
·Wash and clean the oil filter.
If users strictly follow the above maintenance requirements, the lift will keep in a good working condition and meanwhile accidents
could be avoided to a large extent.
S/N
Description
1
Pin shaft
2
Pin shaft B
3
Rotor shaft
4
Rotor shaft
5
Pin shaft B
6
Shaft
7
Shaft

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ANNEX
Annex 1, Packing List of the whole lift
1
Scissor lift
FL-8802-0
Assembly
1
2
Expansion bolt
M16*120
Standard
8
3
Control unit
Assembly
1
Annex2, Overall diagram
Annex3, Floor plan

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Annex 4, Diagram for oil hose connection

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Annex 5, Hydraulic working system
Manual leveling

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Annex6, Wiring diagram
Single phase
1. Drive oil cylinder
2. Oil cylinder
3. Solenoid valve(use manually or
electrically)
4. Lowering throttle valve
5. Motor
6. Coupling
7. Gear pump
8. Single-way valve
9. Over-flow valve
10. Anti-surge valve
11. Cushion valve
12. Emergent unloading valve
13. Oil supplementing valve

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Three phase

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