Castex QJY3.2-1 User manual

Underground Scissor Lift QJY3.2-1
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HYDRAULIC SCISSOR LIFT
OPERATION MANUAL
QJY3.2-1

Underground Scissor Lift QJY3.2-1
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Content
1. Safety..........................................................................................................................3
1.1 Introduction....................................................................................................3
1.2 Symbols.........................................................................................................3
1.3 Intended Use.................................................................................................4
1.4 Safety Instructions for Commissioning.... .....................................................4
1.5 Safety Instructions for Operation...................................................................4
1.6 Safety Instructions for Servicing....................................................................5
2. Purpose and characteristics.......................................................................................5
3. Main technique parameters........................................................................................5
3.1 Storage................................................................................................................7
3.2 Opening the crates..............................................................................................7
3.3 Disposal of crates................................................................................................7
4. Transportation.............................................................................................................7
5. Unpacking....................................................................................................................8
6. Installation and testing.................................................................................................8
7. Maintenance................................................................................................................8
7.1 Maintenance Schedule.........................................................................................9
8. Operation.....................................................................................................................9
8.1 Defects / Malfunctions....................................................................................... ..10
8.2 Controls................................................................................................................10
8.2.1 Control Unit..........................................................................................10
8.3 Operation..............................................................................................................11
8.3.1 Preparations.........................................................................................11
8.3.2 Raising.................................................................................................11
8.3.3 Vehicle in Raised Position...................................................................12
8.3.4 Lowering..............................................................................................12
8.4 Protection against Unauthorized Usage...............................................................12
9. Troubleshooting...........................................................................................................13
10. Electrical Systems.......................................................................................................13
11. Hydraulic System.........................................................................................................15
12. Pneumatic System.......................................................................................................16

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1 Safety
1.1 Introduction
Thoroughly read this manual before operating the lift and comply with the instructions. Always display
the manual in a conspicuous location.
Personal injury and property damage incurred due to non-compliance with these safety instructions are
not covered by the product liability regulations.
1.2 Symbols
Failure to comply with instructions could result in personal
injury.
Failure to comply with instructions could result in property
damage.
Important information
1.3 Intended Use
The lift is designed for the safe lifting of automotive vehicles. Observe the rated load capacity and load
distribution of the lift.
Load Distribution Front: rear
Minimum
Maximum
QJY3.2-1
3200kg
1:2
2:1
In principle, the lift is designed for one approach directions.

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1.4 Safety Instructions for Commissioning
The lift may be installed and commissioned by authorized service personnel only.
The standard lift version may not be installed and commissioned in the vicinity of
explosives or flammable liquids, outdoors or in moist rooms (e.g. car wash).
1.5 Safety Instructions for Operation
Read the operating manual.
Lift operation by authorized personnel over 18 years only.
Always keep the lift and lift area clean and free of tools, parts, debris etc.
Once contact the lift points, check for safety engagement.
After raising the vehicle briefly, stop and check for secure contact.
Make sure the vehicle doors are closed during raising and lowering cycles.
Closely watch the vehicle and the lift during raising and lowering cycles.
Do not allow anyone to stay in lift area during raising and lowering cycles.
Do not allow anyone on lift or inside raised vehicle.
Only use the lift for its intended purpose.
Comply with the applicable accident prevention regulations.
Do not overload the lift. The rated load capacity is indicated on the lift nameplate.
Only use the vehicle manufacturer’s recommended lift points.
After positioning the vehicle apply the parking brake.
Use caution when removing or installing heavy components (center-of-gravity
displacement).
The main switch serves as emergency switch. In case of emergency turn to position OFF.
Protect all parts of the electrical equipment from humidity and moisture.
Protect the lift against unauthorized usage by padlocking the main switch.
1.6 Safety Instructions for Servicing
Maintenance or repair work by authorized service personnel only.
Turn off and padlock the main switch before doing any maintenance, or repair work.
Work on pulse generators or proximity switches by authorized service personnel only.
Work on the electrical equipment by certified electricians only.
Ensure that ecologically harmful substances are disposed of only in accordance with the
appropriate regulations.
Do not use high pressure / steam jet cleaners or caustic cleaning agents. Risk of damage!
Do not replace or override the safety devices.
The MSDS of the hydraulic oil shall be obtained and kept at the easily accessible place for
reference in the emergency situation.

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Friendly attention SAFETY FIRST!
1. Please check lift before work. If the lift is not balanceable, please adjust the lift and
check the safety catch.
2. You must enhance the lift above mechanical lock, and then begin your work.
3. Please check the parts of transmission and slippage frequently. Please infuse the oiling
on the shaft between the axles every 5 to 7 days.
4. Work please refers to the instruction and safe guide picture.
5. Please change the oil upon the season(summer 46# / winter 32#)
2 Purpose and characteristics
QJY3.5-2L scissor hydraulic car lift suits for the checking maintenance of different kinds of light
automobile especially for working outside.
The lift uses the platforms to support the car.
For steady running good quality chinese pump and electronic unit, mechanical racks self-lock and
hydraulic pressure are adopted, safe and credible. No need the preparation of the basement, place it to

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the ground is ok.
This machine is composed of lifting and hydraulic system.
3 Main technique parameters

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3.1 Storage
Packed machinery nut always be kept in a covered, protected place, at a temperature between –10℃
and +40℃and must not be exposed to direct sunlight.
3.2 Opening the crates
When the crates arrive, check that the machine has not been damaged during transport and that all
parts listed are present. The crates must be opened using all possible precautionary measure to avoid
damaging the machine or its parts. Make sure that parts do not fall from the crate during opening.
3.3 Disposal of crates
The wood of the crates may be reused or recycled.
4 Transportation
For transport easily, the PACKAGE are in carton box, and control unit is packed into a wooden box. It
must be moved by suitable capacity forklift truck at the middle of package.
Moving and positioning operation can be very dangerous if not performed with the utmost
caution. Check the integrity and suitability of the available means.
ALL PACKING, LIFTING, HANDLING, TRANSPORT AND UNPACKING ORERATIONS ARE
TO BE PERFORMED EXCLUSIVELY BY EXPERT PERSONNEL WITH KNOWLEDGE OF
THE LIFT AND THE CONTENTS OF THIS MANUAL.
The PACKAGE may be lifted and moved with a lift truck (Fig. 1). If either of the latter two is used, crates
must be hamessed with at least 2 slings.
Fig. 1 Fig. 2
The equipment chosen must be suitable for safe lifting and moving, bearing in mind the dimensions and
weight.

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5 Unpacking
Check that the equipment is in perfect condition, making sure that no parts damaged or missed. Use
below figure for reference. If in doubt, do not use the machine and contact your retailer.
6 Prepare before installation
1. Take out the machine from the packing and place it on the ground, then connect the oil tube.
2. The lift has provision for being bolted down and the manual should instruct that it must be
bolted down. This ensures stability. It must be installed on a strong, flat, level surface.
3. Fill the hydraulic oil:
Fill 10 liters of hydraulic oil into oil box (hydraulic oil provided by user).
4. Adjust the machine:
Turn on power supply, press “ascend”button UP to 100-200mm, then press “descend”button.
Redo it for 4-5 times, and add the height 100-200 each time. That can be use if it runs normally.
Adjust level of either primary or second platforms of the lift with turning on the filling switch and
opening the corresponding refueling valves manually. Run the hydraulic system to get an ideal
result of platforms levels.
5. Working conditions
Regarding ambient temperature shall be 5-40℃?
Regarding humidity shall be 30-95%.

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Regarding transportation and storage temperature shall be between 25-55 and short
period no exceeding 24 hours at up to 70℃?
Regarding installation altitude max 1000m.
In the end of the machine life, the hydraulic fluid shall be drained and then dispose as
normal industrial scrap according to local laws.
7 Maintenance
Turn off and lock the main switch before servicing the lift.
The maintenance intervals indicated below apply to average workshop use. The lift should be
inspected more frequently for severe use applications.
7.1 Maintenance schedule
Establish a periodic preventive maintenance procedure to ensure trouble free operation and long
service life.
Interval
Maintenance to be performed
on
Items
1 week
Support frame/pads
1.check pad for engagement.
2.Add oil with oil pot on all branch hinge axes of
this machine.
3.Up and down wheels should be kept clean,
added lubricant.
6 months
Greasing points
1.Check and lubricate as required: - Slide tracks
Nuts of anchor bolts
1.Check all nuts for correct torque and retighten
them as required.
12 months
Hydraulic system
1.Check fluid level.
2.Change hydraulic oil. Clean the oil box and oil
filter while changing oil. Keep oil level on upper
limit for long time.
3.Check tightness of hoses and fittings.
8 Operation
Lift operation by authorized personnel over 18 years only.
Apply the parking brake after positioning the vehicle on the lift.
Do not allow anyone to stay in lift area raising and lowering cycles.
Closely watch the vehicle and the lift during raising and lowering cycles.

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Observe the rated load capacity and load distribution.
Do not allow anyone to climb on lift or stay inside vehicle.
After raising the vehicle briefly, stop and check adapters for secure contact.
Once contact the lift points, check safety engagement. Make sure the vehicle doors are
closed during raising and lowering cycles.
Remove obstacle around before working.
Weight of lifted car should not be over the lifting capability.
Before lifting, please set well the car’s manual handle; underlay the slip protective plastic
board.
Be attentive while ascending or descending. Stop the machine if any abnormity, check and
exclude failure.
When equipment is not under work or at night, descent it to the lowest position, and drive
the car away, then turn off power supply.
8.1 Defects / Malfunctions
In case of defects or malfunctions such as jerky lift movement or deformation of the
superstructure, support or lower the lift immediately.
Turn off and padlock the main switch. Contact qualified service personnel.
8.2 Controls
8.2.1 Control unit

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The main switch is used as emergency switch. In case of emergency turn it to position OFF.
Main switch in position OFF: Power supply is interrupted
Main switch in position ON: Lift is ready for operation
POWER SWITCH
Turn on the POWER SWITCH to position ON, lift is ready for operation.
Up button
Once any button is actuated, the lift moves until the button is released or the limit position is reached.
DOWN button
Lift stops once switch is released. During lowering cycles the platform automatically stop at
a height above the bottom position.
LOCK button
Press the LOCK button to place the lifting load on the mechanical locking device for releasing loading
pressure of hydraulic system before service operation.
8.3 Operation
8.3.1 Preparations
8.3.2 1 Fully lower the lift.
2 Slowly position vehicle midway between platforms. Apply the parking brakes.
3 Position pads under vehicle manufacturers recommended lift points.
4 Leave vehicle and remain clear of lift.
5 If heights of two platforms, of primary or secondary lift, are not in a even level, make
adjustion.
Always lift the vehicle on the platforms.
8.3.2 Raising
During raising and lowering cycles: Closely watch the vehicle and the lift, do not
allow anyone to stay in lift area and make sure the vehicle doors are closed.

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1 Turn the main switch to position ON. Lift is ready for operation.
2 Push and hold UP button until lift reaches desired height.
Lift stops once button is released or upward travel limit is reached.
3 When the lift raised at a required height, push the LOCK button to place the lifting load on the
mechanical locking device for releasing loading pressure of hydraulic system before service
operation.
8.3.3 Vehicle in Raised Position
Observe all accident prevention regulations.
Do not allow unauthorized persons to stay under the raised Vehicle.
Avoid rocking of vehicle.
Keep lift free of tools, parts, etc.
8.3.4 Lowering
During raising and lowering cycles: Closely watch the vehicle and the lift, do not allow
anyone to stay in lift area and make sure the vehicle doors are closed.
1 Remove tools, stands or other objects from lift bay.
2 Turn the main switch to position ON.
Lift is ready for operation.
3 Push DOWN button and lowering the lift to a desired height.
Lift stops once switch is released or downward travel limit is reached.
4 To lower the platforms completely, release the “DOWN”button, press the “DOWN”button
again.
8.4 Protection against Unauthorized Usage
When in position OFF, the main switch can be protected against tampering by means of a padlock.

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9 Troubleshooting
Failure
Cause
Solution
Engine doesn’t
rotate
□ Bad contact of wires
Check and joint the wires
□ contact device doesn’t work
Check or change contact device
□ bad action of limited switch
Adjust or change limited switch
Engine rotates but
not ascend
□ have dust in the center of the
electromagnetism valve
Check
the electromagnetism valve and
clean it
□ the line pole is loose
Fix it
□ falling short of hydraulic oil
Makeup hydraulic oil
The ascend speed
is slow
The oil seal hole is leak
Change the oil seal
Shake in the
running
Air in the hydraulic pressure loop
Release the air by redo the ascend
and decent
Air leak at the top connect oil tube
mouth of the pump
Check the seal of the oil tube mouth
Filtrate net is jam
Clean it
Only ascend ,can
not descend
□ electromagnetic damage
Check it and mend it
□ connect invalidation in the button
Check the button
□ electromagnetic valve blocked
Check or change electromagnetic
valve
□ descending
electromagnetic valve unopened
Check or change electromagnetic
valve
□ hydraulic oil too dense (in winter)
Add oil according to the manual
Oil leak
Loose tie-in
Screw the tie-in
Mangled oil seal on tie-in
Change oil seal

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10 Electrical systems
10 Hydraulic systems
No
code
Name
1
QF
Power switch
2
KM
Contactor
3
TC
Transformer
4
VD
rectifier
5
FU
Fuse
6
HL
Power
instruction
7
SB1
Stop
8
SB2
Up
9
SB3
Down
10
SB4
lock
11
SQ
Limit switch
12
KT
Time relay
13
YA
Lower
solenoid
14
DQ
Release
solenoid

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No
Parts name
1
Main cylinder
2
Vice cylinder
3
Solenoid valve
4
Relief valve
5
Motor
6
Connector
7
Gear pump
8
One way valve
9
Overflow valve
10
Anti-explosion valve
11
Cushion valve
12
Release valve
13
Refill valve

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11. exploded drawing

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No
.
Parts
Qty
No.
Parts
Qty
1
Bottom frame
2
20
Upper pulley axle
2
2
axle
8
21
platform
2
3
Oiless bearing
16
22
Extended ramp
2
4
Circlip for shaft
24
23
Upper outer scissor arm
2
5
Bottom pulley axle
2
24
Upper inner scissor arm
2
6
Bottom pulley
4
25
upper axle
2
7
Oiless bearing
16
26
cover
2
8
Spacer bush
4
27
Fast connector
2
9
Oiless bearing
8
28
Air cylinder
2
10
Vice cylinder condom
1
29
Main cylinder
1
11
nut
8
30
Main cylinder cover
1
12
washer
8
31
fitting
1
13
Flat washer
8
32
Throttle valve
2
14
washer
8
33
Bottom axle
2
15
Oiless bearing
16
34
Circlip for shaft
2
16
axle
8
35
Bottom outer scissor arm
2
17
Arm axle
8
36
Bottom inner scissor arm
2
18
Oiless bearing
4
37
Vice cylinder
1
19
Upper pulley
4