twin busch TW SA 42 U V2 General instructions

2

3
INDEX
1. Important safety instructions 4-5
1.1 Important notices
1.2 Qualified personnel
1.3 Danger notices
1.4 Training
1.5 Warning signs
2. Overview of the lift 6-7
2.1 General descriptions
2.2 Technical data
2.3 Construction of the lift
3. Installation instructions 8-9
3.1 Preparations before installation
3.1.1 Tools and equipments needed
3.1.2 A list for parts
3.1.3 Ground conditions
3.2 Precautions for installation
3.3 Installation
3.4 Items to be checked after installation
4. Operation instructions 10-11
4.1 Precautions
4.2 Flow chart for operation
4.3 Operating instructions
5. Trouble shooting 12
6. Maintenance 13
7. Annex 14-28
Annex 1, Packing list of the whole lift
Annex 2, Overall diagram
Annex 3, Diagram for oil hose connection
Annex 4, Hydraulic working system
Annex 5, Diagram for air supply connection
Annex 6, Wiring diagram
Annex 7, Separated drawings for the lift
Annex 8, Spare parts list

4
IMPORTANT SAFETY INSTRUCTIONS
1.1 Important notices
Twin Busch offers a one year quality warranty for the whole machine, during which any quality problem will be properly
solved .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 qualified staff, who have been properly trained, can operate the lift.
1.2.2 The electrical connection must be done by a qualified 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 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 The lift is only to be operated in a dry indoor area.
1.3.15 If the lift is going to be left unused for a long time, users are required to:
a. Disconnect the power;
b. Empty the oil tank;
c. Lubricate the moving parts with hydraulic oil.
1.4 Training
Only 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.

5
1.5 Warning signs
All safety warning labels are clearly depicted on the lift to ensure that the operator is aware of and avoids the dangers of using
the lift in an incorrect manner. The labels must be kept clean and they have to be replaced if detached or damaged. Please read
carefully the meaning of each label and memorize them for future operation.
Read the manual
before use
Repairs and service only
through authorized
personel, never tamper
with the safety devices
Only trained personnel
should use the lift
No unauthorized persons
under the lift when in use
Always leave escape
routs clear
Please take care not
to trap your feet
Danger of crushing when
letting down
Never use only one
side oft he lift
Avoid shaking
Vehicles should be
evenly balanced
No obstcles under the lift
High voltage

6
OVERVIEW OF THE LIFT
2.1 General description
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, 24 V 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
Rated capacity
4000 kg
8818,49 Lbs
Full raised height
1900 mm
74.80 in
Full lowered height
180 mm
7.08 in
Full raised time (with rated load)
≤55s
Full lowered time (with rated load)
≤55s
Hydraulic working pressure ( Bar )
200 Bar
2900,75 PSI
Pneumatic working pressure (Bar)
6-8 Bar
87-116 PSI
Rated capacity of the secondary lift
4000 kg
8818,49 Lbs
Full raised height of the secondary lift
450 mm
17,71 in
Oil tank volume
18 L
4,75 Imp.gal

7
2.3 Construction of the lift

8
INSTALLATION INSTRUCTIONS
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 are missing 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, Twin Busch 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 3000 psi, tolerance of flatness less
than 5 mm and minimum thickness of 200 mm. In addition, newly poured concrete must dry for 28 days.
3.2 Precautions for installation
3.2.1 Joints of oil hose and wiring must be firmly connected in order to avoid leakage of oil hose and looseness of
electrical wires.
3.2.2 All bolts should be firmly screwed up.
3.2.3 Do not place any vehicle on the lift the first time the lift is operated.
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 the oil hose as per the diagram for oil hose connection. (This step is very important and it is quite necessary to
understand the diagram of oil hose connection in Annex 4 before operation)
Step 3: Connect air hoses.
Connect the pneumatic release system by the diagram of air hose connection in Annex 6.
Step 4: Connect wires.
Connect the power supply and the quick connections of limit switch.
Step 5: Fill with 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 cap of the tank)
Note: As the running speed of the lift is mainly decided by the density hydraulic oil, we suggest using NO.46 hydraulic oil when
average temperature of the location is above 18 degree Celsius and using NO.32 hydraulic oil when temperature is below 18
degree Celsius.
Step 6: Leveling - Manual leveling of runways of the main lift.
1) Connect the power supply and switch on the power switch on the control panel until the green indicator light shines.
2) Press the “UP” button for 30 seconds. Normally at least one of the two runways will rise at this movement. (In the case the
lift is equipped with three phase power supply and the motor works but the runway 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) Open the ball valve in the control unit and then press “UP” or “DOWN” button to adjust the height of one runway until it
reaches the same height as the other.
4) Close the ball valve.
5) Repeat the above leveling steps if synchronization not achieved.

9
Manual leveling of jacking beams
1) Turn the option switch on the panel to the position of “Jack”.
2) Open the manual ball valve for the” Jack” on the hydraulic block in the control unit.
3) Press the "UP” button until both runway of the jack go utmost top to vent air in cylinders.
4) Close the ball valve.
5) Press DOWN I, until jacks lower to the lowest position.
PRESS UP BUTTON TO CHECK. THE JACKS SHOULD BE SYNCHRONIZED BY THIS STEP.
IF NOT,
Again open the ball valve, and press UP button.
Stop pressing, when two runways are at same level.
Close the ball valve.
Press the UP button to check the synchronization.
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?

10
Turn on the power switch
Press UP button
The lift is raised
Turn on the power switch
Press down I button
The lift is
lowered
Lift rais and unlock safety
automatic, then down
The lift stop under 800 mm height, change
2 button and continue to down the lift.
Cylinder piston drives the runway move up
Motor drives the gear pump work
OPERATION INSTRUCTIONS
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 It shall not lift or lower an automobile if its center of gravity is not positioned midway of the runways. 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 runways 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 Flow chart for operation
Raising
Lowering

11
4.3 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. Press the “UP” button on the control box to lift the vehicle a bit higher from the ground and check again if the vehicle
is in a safe position.
4. 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” 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 500 mm.
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.

12
TROUBLE SHOOTING
ATTENTION: If the problem can 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.
PROBLEM
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.

13
MAINTENANCE
It is advised to change the hydraulic oil three month after initial use and once per year thereafter for which could
prolong the service life of the pump.
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 Check
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 Check
· 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 Check
· 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 Check
· 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
Name
1
Shaft
2
Rotor shaft
3
Rotor shaft
4
Rotor shaft
5
Rotor shaft
6
Rotor shaft
7
Pin shaft
8
Rotor shaft
9
Rotor shaft

14
ANNEX
Annex 1, Packing List of the whole lift
S/N
Name
Desk.
Qty
1
8806T vehicle lift
Assembly
1
2
Expansion bolt M16*120
Standard
12
3
Control cabinet
Assembly
1
Annex 2, Overall diagram
(1) Without jack

15
(2) With jack

16
Annex 3, Diagram for oil hose connection

17
Annex 4, Hydraulic working system
1. Emergent unloading valve
2. Electrical unloading valve
3. Single-way valve
4. Overflow valve
5. Lowering throttle valve
6. Coupling
7. Solenoid valve
8. Cushion valve
9. Gear pump
10. Motor
11. Oil filter
12. Oil cylinder
13. Oil cylinder
14. Ball valve of body lift
15. Ball valve of jack

18
Annex 5, Diagram for air supply connection

19
Annex 6, Wiring diagram

20