Jema Autolifte JA5500F Manual

Jema Autolifte A/S
JA5500F
FOUR POST LIFT
Electrical Release
INSTALLTION, OPERATION
AND MAINTENANCE MANUAL
Read this entire manual carefully and completely before installation and operation of the lift.

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INDEX
1. Important safety instructions……………………………….…..5~7
1.1 Important notices
1.2 Qualified personnel
1.3 Danger notices
1.4 Warning signs
1.5 Sound level
1.6 Training
2. Overview of the lift……………………………………………….……..7~8
2.1 General descriptions
2.2 Construction of the lift
2.3 Optional parts
3. Installation instructions………………………………………….……8~11
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………………………………………………..12~15
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………………….…………………….………….….17
6. Maintenance……………………………………………………………18
7. Annex…………………………………………………….…………...…19~39
Annex1, Packing list of the whole lift
Annex2, Overall diagram
Annex3, Floor plan
Annex4, Steel cable connection
Annex5, Hydraulic working system
Annex6, Wiring diagram
Annex7, Separate diagrams for the lift
Annex8, Spare parts list
Annex9, Size and weight requirements on vehicles
8. CE Certificates and EC DECLARATION OF CONFORMITY….…38~41

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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
Jema autolifte A/S 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.
Users must always bear in mind that this lift 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 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 properly trained personnel 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 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 raise the entire body of vehicles, with its maximum weight within the lifting capacity.
1.3.9 Always ensure the safety latches 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.
Attention: For environment protection, please dispose the disused oil in a proper way.

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1.4 Warnings (Read and understand all safety warnings before operation)
All safety warning signs attached on the lift 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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1.5 Sound Level
The sound emitted from the lift should not exceed 75DB. For the sake of your health, we suggest putting a noise detector in your
working area.
1.6 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
This four-post lift is generally composed by four posts, two beams, two platforms, a hydraulic oil cylinder and a set of power unit. It
is driven by an electro-hydraulic system. Up and down of platforms is controlled by the to and fro movement of the oil cylinder. To
ensure ultra safety of operators, it is equipped with mechanical safety locks in the four posts, which will automatically engaged in
the process of lifting so as to prevent the platforms from sudden dropping down in case the hydraulic system fails to work.
Safety construction:
2.2 General construction of the lift
Weight for JA5500F = 1550 KG
1. Platform A
2. Platform B
3. Main post 1
4. Post2
5. Post3
6. Post4
7. Main beam
8. Assistant beam
9. Ramps
10. Control box
11. Hydraulic pump

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2.3 Optional parts
1. Jacking beam light
3. Installation instructions
3.1 Preparations before installation
3.1.1 Tools and equipments needed
✓Appropriate lifting equipment
✓Anti-abrasion hydraulic oil.
✓Rotary Hammer Drill with 3/4’’ drill bit.
✓Chalk and tape measure, magnetic plump, 8 meters ø15 level pipe.
✓Sockets and open wrenches, a set of inside hex wrenches, cross and straight screw drivers.
✓Hammer, 4pounds, sharp nose pliers, ø17,ø19,ø22 socket 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, Jema Autolifte A/S 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 Make sure the four posts stand paralleled and are vertical to the ground. No slanting.
3.2.2 Joints of oil hose and steel cable must be firmly connected in order to avoid the looseness of steel cable and leakage of oil
hose.
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.

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3.3 Installation instructions
Step1: Choose a proper site
Location requirement
If not specifically stated, our lifts are only for indoor use. It should be fixed on a smooth and solid concrete ground. Do not install
this lift on expansion beams of concrete or on a second or an elevated floor without first consulting building architect. Make sure
that the space around or over the lift should be free of obstructions like heaters, building supports, electrical lines etc.
Step 2: Fix the installation layout
Once the installation site is determined, mark first the standing point of the four posts by a tape measure and chalk. Ensure two
diagonal lines are of the same length.
Step 3: Remove the packing materials
1. Place some wooden battens on the ground and then use a crane to have the packing rack removed on to the battens so as to
make its base is of some clearance from the ground.
2. Have the platforms of the lift suspended by a crane and then screw off the upside bolt and remove the first platform on to the
wooden battens initially prepared.
3. Screw off the downside bolt and take away the packing rack on both sides.
4. Remove the shock absorption plastic film with a knife.
Step 4: Use a crane to have the general parts positioned in accordance with following layout.
For convenient installation, it would be better to pad something supporting under the platform.
Oil cylinder, steel cable and oil hose have already been fixed in the main platform before packing.
Wires rope, oil hose, safety lock etc, have already been fixed in the beams before packing.
Step5: Connect the platforms and beams
Firstly, connect the main beam with two platforms. Align accurately the screw sockets on the platform and the beam. Installers can
adjust the distance between two platforms on basis of practical needs. Once the distance was adjusted, fasten the beam and
platforms with M12*30 hex bolt with spring and flat washer padded. Connect the other beam in the same way.

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Step6: Separately insert the four rods of safety teeth fixer into the four ends of cross beams. Please refer to the diagram
of safety construction and insert along the inside surface of the post’s blanking plate. Have an M20 nut screwed on the end of the
fixer which is to fix the rod of safety teeth fixer.
Step 7: Elevate the post a bit and insert the bolt for fixing the safety teeth fixer into the diamond hole on the top of the
main post and tighten it with a M20 screw. Then plug the post into the beam and adjust the post and beam to a proper
position. Pull the steel cable out and insert it through the reserved Ф21 hole on the top of the post and then screw on the M20 nut.
Step8: Fit on 8 nylon sliders (see the following diagram)
Step9: Fix the ramps.
Align the end of the platform and the hole on the ramp and connect them with shaft and cotter pins.
Step10：Fit on four covers on top of the four post and four beam protectors at both ends of the two beams.
Step11: Mount the control box and hydraulic pump onto the main post.
Pull out the oil hose and air hose (if applicable) from the main platform and have them connected to the hydraulic block. Fix the
plate (on which the hydraulic pump will be fitted) on to the main platform by four M8*20 bolts. (FourФ9 holes for the bolts are
previously reserved). Then fix the hydraulic pump on to the plate by M10*30 hex bolts, spring and flat washers.

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Step 12：Connect the electrical system.
Attention: electrical connection must be done by a licensed electrician.
Connect the wiring as per the wiring diagram and do pay careful attention to the number tubes attached on each thread of wire.
Wires of with the same number shall be connected.
Step 13: Mounting of top and bottom stop
When top and bottom stops are mounted in the main post, it is important that they are mounted correctly as otherwise they can
break when the lift is tested. See picture below how to place them in the main post. Also remember to adjust the arm on the top
and bottom stops.
Bottom stop Top stop
Step 14: Leveling
No vehicle on platforms when leveling.
Switch on and press the UP button when the green power indicating light is on. When the steel cable has been tightened,
measure if the two platforms are of the same height from the ground. If not, adjust the tightening screw fixed on top of the main
post.
Step14: Fix the expansion plug.

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3.4. Items to be checked after installation.
S/N
Check items
YES
NO
1
Are the posts vertical to the floor?
2
Is the oil hose well connected?
3
Is the steel cable well connected?
4
Are two platforms well connected?
5
Are electrical connections, right?
6
Are the rest joints firmly screwed?
7
Are all items need lubricating added with grease?
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 platforms. Otherwise,
the Jema Autolifte 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 the platforms rise to the desired height, switch off the power at once to prevent any mal 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
Description
Function
Alarm buzzer
Low height alarm
Power switch
Control power connection
Power indicator
Show if power is connected
UP button
Control the UP movement
Safety lock
Safety lock engaged
DOWN I button
Control down movement
DOWN II button
Control down movement
EMG.Stop
Ensure safety in emergency conditions

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Switch on
Press the DOWN button
Platforms are lowered
Lowering
Switch on
Press the UP button
Motor drives the gear pump
work
Platforms are raised
Raising
The piston goes back to oil cylinder
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. Park the vehicle on the platforms to ensure its gravity is positioned midway of the platforms.
3. Switch on. When the power indicator is on, press the UP button until platforms rise to the desired height.
4. Before performing any service around or under the vehicle, operators must press the safety lock button to ensure the
mechanical safety lock is fully engaged, turn off the power so as to avoid any wrong operation done by irrelevant personnel
and check again the stability of the vehicle.
Lower the lift
1. Switch on. When the power indicating light is on, press the DOWN I and DOWN II button and then platforms of the list will
go down gradually.
2. Drive away the vehicle when platforms have lowered to the lowest position.
3. Turn off the power.

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4.5 Emergency lowering in case of no power
In the case the safety lock is not fully engaged：
1. Push the front rod of the four electric magnets under the cross beam to have the four safety blocks released from the safety
rods.
2. Press and screw loose counter-clockwise the unloading valve to lower the platform.
In the case the safety lock is fully engaged：
1. Remove the fitting as show in the following pictures and connect the tie-in with hand pump. Pull and push the handle of the
hand pump to supplement oil to the oil cylinder so as to have the safety teeth released.
Unloading valve
Safety block and safety rod
Front rod of electric magnet

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2. Push the front rod of the four electric magnets under the cross beam to have the four safety blocks released from the safety
rods.
3. Press and screw loose counter-clockwise the unloading valve to lower the platform.
Unloading valve
Safety block and safety rod
Front rod of electric magnet

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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
Abnormal noise
Abrasion exists on insider surface of the
posts.
Grease the inside of the post.
Trash in the post.
Clear the trash
Motor does not run and
will not rise
The wire connection is loose.
Check and make a good connection.
The motor is blown.
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
rise
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.
Manual unloading valve or electrical unloading
valve leaks.
Clean or replace it.
Rising 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.
Inside surface of the posts is not well greased.
Add grease.
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.
The steel cable is
abraded
No grease when installation or out of lifetime
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 decide 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 latch 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 latches are engaged by sound.
·Check whether oil hose well connected and whether it leaks or not.
·Check the connections of chain and steel cable and check the power unit.
·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 carriage 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.
·Check the lubrication and abrasion circumstance of axial pins, carriages, lifting arms and other related parts and replace in time
with new ones if they failed to work well.
·Check the lubrication and abrasion circumstance of steel cable.
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
Name
1
Slider
2
Steel cable
3
Side slider
4
Sliding wheel
5
Safety block A1(A2)
6
Safety block B1(B2)
7
Spring
8
Shaft

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7. Annex
Annex1：Packing list of the whole lift
S/N
Name
Drawing#/size
Qty
1
Main platform
JA4000FN-A4
1
2
Assistant platform
JA4000FN-A5
1
3
Beam A
JA4000FM-A2
1
4
Beam B
JA4000FM-A7
1
5
Ramp A
JA4000FN-A8
2
6
Ramp B
JA4000FN-A10
2
7
Post
JA4000FN-A1-B1
4
8
Post
JA4000FN-A6-B1
9
Bar for safety lock
JA4000FN-A1-B2
4
10
Control box
JA4000FC
1
11
Pump
JA4000FM-A3-B33
1
12
Slider
JA4000FN-A2-B3
8
13
Slider holder
JA4000FN-A2-B2
8
14
Manual rod
JA4000FM-A29
1
15
Pump assembly holder
JA4000FN-A13
1
16
Protector
JA4000FN-A2-B5
4
17
Post cover
JA4000FN-A11
4
18
Shaft
JA4000FN-A8-B2
2
19
Handle
JA4000FM-A26
1
20
Handle fixer
JA4000FM-A27
1
21
Reset plate
JA4000FM-A28
1
22
Hex bolt
M12*25
12
23
Hex bolt
M10*30
5
24
Hex bolt
M8*15
16
25
Spring washer
Ф12
8
26
Spring washer
Ф10
4
27
Flat washer
Ф12
8
28
Nut
M10
5
29
Nut
M12
4
30
Nut
M20
16
31
Open pin
3*40
4
32
Flat washer
Ф10
4
33
Flat washer
Ф8
16
34
Cross round headed bolt
M5*10
4
35
Cross round headed bolt
M6*12
2
36
Cross round headed bolt
M6*30
1

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Annex2：Overall diagram

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Annex3：Floor plan
Annex 4: Steel cable connection