Jema Autolifte JA3000S User manual

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JA3000S
Service scissor Lift
Lifting Capacity: 3000KG
INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
ORIGINAL INSTRUCTION
Read this entire manual carefully and completely before installation and operation of the lift.
Original

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INDEX
1. Important safety instructions……………………………….…5~8
1.1 Important notices
1.2 Qualified personnel
1.3 Danger notices
1.4 Condition notices
1.5 Warning signs
1.6 Sound level
1.7 Training
2. Overview of the lift………………………………………………..8
2.1 General descriptions
2.2 Technical data
2.3 Construction of the lift
3. Installation instructions………………………………………….9~11
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…………………………………………11~14
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………………….…………………………… 15
6. Maintenance……………………………………………………..16
7. Annex…………………………………………………….………..17~28
Annex1, Packing list of the whole lift
Annex2, Overall diagram
Annex3, Hydraulic working system
Annex4, Wiring diagram
Annex5, Separate diagrams for the lift
Annex6, Spare parts list
Annex7, Size and weight requirements on vehicles

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User’s Records
Fill the following blanks with the information on the nameplate.
Model No. : ____________________________ _
Serial No. :___________________________
Production Date:______________________ __
The following specially trained people are permitted to operate
and maintain this lift.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

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Installation Records
Model No. : _________________________ ___
Serial No. : _ _ _______________________ ___
Customer’s Name:______________________ ___ ___
Installation Date: __________________ __________
Declaration
The above mentioned lift has been correctly installed and all its
functions including the reliability of safety locks have passed strict
tests. Therefore we hereby declare that this lift is in normal working
condition when installation finished.
Installation date Installer’s signature
------------------ ----------------
User’s signature
----------------

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1. IMPORTANT SAFETY INSTRUCTIONS
1.1 Important notices
JEMAAUTOLIFTE will offer one-year's quality warranty，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 service scissor lift is especially fit for tire service or other quick service around vehicles. Users must always bear in mind
that this JA3000S is specially designed for lifting cars or other vehicles, so never 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 Condition notices
Generally, this machine will be installed on the following conditions:
1.4.1 supply voltage:0.9-1.1 nominal supply voltage
1.4.2 source frequency:0.99-1.01 nominal frequency

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1.4.3 Ambient temperature: 50°C - 400°C
1.4.4 Altitude:shall be at altitudes up to 1000m above mean sea level
1.4.5 Relative humidity: not exceed 50% at 400°C
1.4.6 Atmosphere: Free from excessive dust, acid fume, corrosive gases and salt.
1.4.7 Avoid exposing to direct sunlight or heat rays which can change the environmental temp.
1.4.8 Avoid exposing to abnormal vibration.
1.4.9 Electrical equipment shall withstand the effects of transportation and storage temperature within a range of -25°C to 55°
C and for short periods not exceeding 24 hours at up to +70°C
Attention: For environment protection, please dispose the disused oil in a proper way.

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1.5 Warnings (Read and understand all safety warnings before operation)
All safety warning signs attached on the machine are for the purpose of drawing the user’s attention to safety operation. The
labels must be kept clean and need to be replaced when they are worn-out or have dropped. Read the explanations of the
labels carefully and try to memorize them.

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1.6 Sound Level
The sound emitted from the lift should not exceed 65DB. For the sake of your health, we suggest putting a noise detector in
your working area.
1.7 Training
Only properly trained people are allowed to operate the lift. We are quite willing to provide professional training for the users
when necessary.
2. Overview of the lift
2.1 General descriptions
The lift is driven by an electro-hydraulic system. The gear pump delivers hydraulic oil to oil cylinders and pushes upwards their
pistons to raise the platforms. For this model, we offer two safety solutions: one with anti-surge valve in hydraulic system to
prevent sudden drop down of platform in case the oil hose broke, the other with anti-surge valve and an extra pneumatic safety
lock.
Pneumatic safety lock.
2.2 Technical data
Model
Lifting capacity
Lifting time
Lifting height
Power supply
JA3000S
3000KG
30S
1000mm
220V/240V,single phase
Weight on JA3000S = 500 KG
2.3 Construction of the lift

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3. Installation instructions
3.1 Preparations before installation
3.1.1 Tools and equipments needed
√ Electrical drill
√ Open wrenches
√ Screw drivers
√Adjustable spanners
√Inner hexagon spanners
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, JEMAAUTOLIFTE 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
3.2.1 Joints of oil hose must be firmly connected in order to avoid leakage.
3.2.2 All bolts should be firmly screwed up.
3.2.3 Do not place any vehicle on the lift in the case of trial running.
3.3 Installation
Step 1: Remove the packaging and take the two mechanical assemblies and the control box to the designated
installing place. Please do read and understand this manual thoroughly before next step.
Step 2: Connect the oil hose to the pump assembly with a proper wrench, it has no effect which side the oil hoses are
connected to. ( Make sure the hose end is clean).

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Step3: Connect the limit switch wires to the wiring terminals in the control box. Make sure to connect NO.1 wire with
NO.1 terminal , NO.2 wire with NO.2 terminal and so forth.
Step4: Link the air hose to compressed air source. (This step is only for the type with pneumatic safety lock)
Step5: Adjustment of lowering speed
Before the lift is used, the user must be sure to adjust the lowering speed properly according to user's request.
It is important to bear in mind that the lift has a maximum capacity of 3000 kg. Which means the lift is not lower
too fast with max capacity.
Lowering speed is adjusted on the screw on the right hand side of the engine. The adjustment is done as follow,
the user rise the lift, and then starts to lower the lift when the screw is screwed in the lower speed will decrease and if the user
screw the screw out the lowering speed will increase NB. Remember to adjust before load of car and it is important to
remember the lift will lower much faster when there is load on the lift.
A explanation video how to adjust lowering speed and pump pressure can be found here:
jemaautolifte.dk/adjustment_of_220V_engine.wmv
Step 6: Fix the base frame. (Optional )
8mm connection direct to compressor
6mm connection for the lift

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JA3000S is portable. In other words users may use it without having it placed and fixed on the ground. Nevertheless, if you want
to have it fixed, do fix it on a smooth and solid concrete surface.
Step 7: Trial testing with load. (Do not use cars for trial testing)
Load applied shall not exceed 2500KG. Add 10L of hydraulic oil when all oil hose are gathered.
This step is of particular importance for it can check if the oil hose and air hose are well connected. Connections are qualified
when there is no abnormal sound or leakage after having been tested for 2 or 3 times.
3.4 Items to be checked after installation
S/N
Check items
YES
NO
1
Are two platforms on the same level?
2
Are oil hoses well connected?
3
Are electrical connections correct?
4
Do valves on the pump assembly leak?
4. 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 The machine shall not lift or lower an automobile if its center of gravity is not positioned midway of the rising platforms
Otherwise, the JEMAAUTOLIFTE 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 rise 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.

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Start
Turn on the power switch
The lift is raised
Press the UP button
Motor drives the gear pump work
Cylinder piston drives the platform move up
Start
Turn on the power switch
Press the DOWN button
The lift is lowered
Press the DOWN button
Press the UP button
4.2 Descriptions of control box
4.3 Flow chart for operation

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4.4 Operation instructions
Remark: Only authorized staff can adjust the system pressure on the power unit.
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 check again the safety issue before performing maintenance
or repair work,
Lower the lift
1.Switch on.
2.Press the UP button release the safety lock, then press the DOWN to lower the lift, to the wanted height.
3.If the lift is on minimum drive away the vehicle.
4.5 Emergency lowering in case of no power
The safety lock is not engaged :
a. Tie up the safety teeth on both sides with rope; pull upward the rope making the safety teeth unlocked.
b. Having the safety teeth unlocked, manually loose the core of electro-magnetic valve on the pump assembly. This screw
decides the lowering speed. The screw is going in, the lift will lower slower, the screw is going out the lift will lower faster.
The safety lock is engaged:
a.Screw off the fitting (opposite to the oil out-let) to connect a hand pump.(Optional)

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b.Connect the hydraulic assembly with the optional hand pump. Press down the handle of the pump to raise the platforms
to have the safety teeth unlocked.
c.Pull up the safety teeth and tie up them up.

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5. 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.
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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6. 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 lock system is very important –the discovery of device failure before
action could save your time and prevent you from great loss, injury or casualty.
·Before operation, judge whether the safety lock is engaged by sound.
·Check whether oil hose well connected and whether it leaks or not.
·Check the electrical system.
·Check whether plug bolts firmly screwed.
·Check if safety teeth and safety block matched well or not.
6.2.Weekly checking items
·Check 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 platforms can be raised to highest position.
Otherwise, oil is insufficient.
·Check whether plug bolts firmly screwed.
6.3. Monthly checking items
·Check whether plug bolts firmly screwed.
·Check the tightness of the hydraulic system and screw firm the joints if it leaks.
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
Small idler wheel
2
Rotor shaft
3
U-shape block
4
Safety shaft
5
Rotor shaft of oil tank
6
Slider

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7. ANNEX
Annex 1，Packing List of the whole lift
S/N
Name
Qty
1
JA3000S Mechanical Assembly
2
2
Movable control box with hydraulic system
1
2.1
Wheel
2
2.2
Connection kit
1
2.3
All directional wheel
1
3
Feet protector
2
4
Connection pipe
2
5
Inside hex screw
32
6
Rubber pad
4

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Annex2，Overall diagram

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Annex3，Diagram for pneumatic system.
Annex 4，Hydraulic working system
1. Driving cylinder
2. Assistant cylinder
3. Electrical release valve
4. Lowering throttle valve
5. Motor
6. Coupling
7. Gear pump
8. One-way valve
9. Over-flowing valve
10. Anti-surge valve
11. Cushion valve
12. Emergent unloading valve
1. Air filter
2. Pneumatic solenoid valve
3. Pneumatic cylinder for the main platform
4. Pneumatic cylinder for the assistant platform

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Annex5, Wiring diagram
Single phase