293227 Power Double Scissor Lift Table
POWER DOUBLE SCISSOR LIFT TABLE
Model No. 293227, 293228, 293229
The Power Double Scissor Lift Table is a movable lifter designed
to lift or lower rated load. The lift table is not self-supporting
and must be fixed to the floor/ground by means of expander bolts or
similar. The maximum load refers to the load being uniformly
distributed over the entire platform area.
Installation
For double or triple vertical scissors tables, it is recommended
to fix the table to the floor/ground by means of expander bolts or
similar. All other lift table types (except mobile units) must also
be securely affixed on the floor to prevent unintentional movement.
The flooring must be flat, stable, and well-drained. Utilize a
lifting sling through the scissor package to tie the base frame to
the platform or the scissor mechanism. Check the operation of the
safety frame on all sides. The control device should be positioned
so that the operator has a clear view over the lift table and the
load at all times when the lift is operated.
Caution and Daily Inspection
Do not use the lift table for any purpose other than lifting or
lowering a rated load. Do not allow a person to operate the lift
table who does not understand its operation. It is forbidden to
change the lift table without manufacturer’s written admission. It
is necessary to use spare parts designated by the manufacturer.
Daily inspection is effective to find any malfunction or fault on
the lift table. Before operation, check all terms of warning and
caution, scratches, bending or crack on the lift table, smooth
movement of the table, hydraulic oil leakage, vertical creep of the
table, and if all bolts and nuts are firmly tightened.
Operating the Lift Table
Load should be distributed on the lift table equably. To lift
the table, operate it properly according to the instructions
provided. If operating the lift table improperly, a person may be
seriously injured.
USER MANUAL
POWER DOUBLE SCISSOR LIFT TABLE
MODEL NO. 293227, 293228, 293229
Owner/Operator must read and understand this manual
1. WARNING! If operating the lift table improperly, a person may be seriously injured. Therefore, operate properly according to the following instruction
. Read & thoroughly understand the Instruction Manual completely before using. Follow all safety instructions strictly. It is necessary to check all safety devices before operation. Make sure that there are no obstacles in the working area. Do not put foot or hand in scissors mechanism or through frame. Screw the lifting eyes on the base frame before working on the lift table. Do not overload the lift table. Load should be distributed on the table according to relevant load distribution chart. Pay attention if local voltage and frequency is as same as the input specification of the lift table. Use the lift table on flat and solid ground. All the electrical connection and disconnection operations must be carried out by skilled and competent personal. While operation, it is forbidden to contact the moving parts of the lift table. While the lift table moving, it is forbidden to adjust or to move the load. It is forbidden to lift the load, which perhaps does harm to a person or other object. It is forbidden to operate the lift table while a person is under the table. Do not adjust the safety valve of hydraulic power pack. It is forbidden to operate the lift table even if there is small structure distortion. Do not use in an explosive or flammable place.
1
NoteMaximum load refers to the load being uniformly distributed over the entire platform area.
In accordance with EN1570, Safety Requirements for Lifting Tablesthe basic requirements are:
100% of the rated load(maximum load) uniformly distributed over the entire platform area.
or 50% of the rated load(maximum load) uniformly distributed over half the length of the platform.
or 33% of the rated load(maximum load) uniformly distributed over half the width of the platform.
2. INSTALLATION OF LIFT TABLE ON THE FLOOR/GROUND OR IN A PIT
Double or triple vertical scissors tables must be fixed to the floor/ground by means of expander bolts or similar We also recommend that all other lift table typeswith the exception of mobile unitsare securely affixed on the floor to Prevent unintentional movement
MECHANICAL/ELECTRICAL INSTALLATION
1.The base frame of the lift table is not as standard self -supporting .It is important that the flooring is flat and stable and that the installation area or pit, when necessary, is well drained.
2
2. Utilize a lifting sling through the scissor package. Tie the base
frame to the platform or the scissor mechanism. Locate the table
into the desired position. Turn the fixed arm end to the side where
the load will be moved on or off at upper level. See picture below.
3. Check the operation of the safety frame on all sides.
4.The control device should be positioned so that the operator has
a clear view over the lift table and the load at all times when the
lift is operated.
Loading/unloading at the fixed
PIT DRAWING
arm end
A. Pit length=a+30mm
B. Pit width=b+30mm
H. Pit depth=closed
height of table+5mm
a. Platform length
b. Platform width
c. Drainage hole (when required)
d. Tube for external cables and hoses 60mm
h. Lowest height
3. CAUTION! If operating the lift table improperly, a person may be injured. Therefore, operate properly according to the following instruction.
The lift table is a movable lifter designed to lift or lower rated load. Do not use it for other purpose. Do not allow a person to operate the lift table, who does not understand its operation. It is forbidden to change the lift table without manufacturer’s written admission. It is necessary to use the spare parts designated by manufacturer.
3
Make sure to keep a distance between the table and ambient objects enough to operate the lift table safely. Keep the hydraulic system under clean and safe condition. The hydraulic power pack features an electric lowering control. The coils must be fed with the required voltage as described on those coils. The power supply voltage should not exceed ±10% of the rated required voltage. Always do maintenance and routine check while the lift table is unloaded. The lift table is not waterproof and should be used in a dry environment. 4. DAILY INSPECTION
Daily inspection is effective to find the malfunction or fault on the lift table. Before operation, check the lift table according to the following points.
CAUTION! Do not use the lift table if any malfunction or fault is found.
Check all the terms of WARNING and CAUTION. Check scratches, bending or crack on the lift table. Check smooth movement of the table. Check if there is any hydraulic oil leakage. Check the vertical creep of the table. Check if all the bolts and nuts are firmly tightened.
4
5. OPERATING THE LIFT TABLE LOADING
Load should be distributed on the lift table equably. LIFTING THE TABLE
CAUTION! Do not overload the lift table. Ensure the balance of loading. Do not load partially or concentrically.
Screw and loose emergency stop switch. Push the UP button and power pack starts to work to lift the load. Loose the UP button and power pack stops working. LOWERING THE TABLE
WARNING! Do not put foot or hand in scissors mechanism.
Push the DOWN button and the table will lower. Loose the DOWN button and the table will stop. NOTE The table is equipped with an aluminum guard to avoid accidental danger. If aluminum guard strikes an object while the table lowers, stop operation and check the lift table. After making sure no any abnormality, strike the UP button slightly and then the electric system will function as before. EMERGENCY STOP There are two methods of emergency stop as follows. Push down the emergency stop switch and the movement of table stops. Strike aluminum guard upward and the movement of table also stops.
5
TRANSPORTATION If necessary, the lift table can be transported with attached ringbolts. Pay attention to the maximum capacity of lifting equipment to be used. Keep the ringbolts with reasonableness. 6. HYDRAULIC CIRCUIT & ELECTRIC PRINCIPLE DIAGRAM See Figure 1 & Figure 2.
Fig. 1 Hydraulic circuit
6
No
Type
1 LB01
Name
Description
Qty
Control power transformer DF30-110V-460V/0-24V 50VA
1
2 F1 F2
Fast melter
5A
2
3 VD1
Rectifier
RS-2510
1
4 VDR1
Voltage dependent resistor 10K/471 10K/821
1
5 R1
Resistor
1.8K/1W
1
6 C1
Electrolytic condenser 470uF/50V
1
7 KM01
AC contactor
BC-30-10
1
8 KA1 KA2
Middle relay
SRC-24VDC-SH
2
9 D1 D2 D3 D4 D5 D6 D7 Silicon rectifying diode IN4007
7
10 DF01
Electromagnetic valve DC24V
1
11 SB3
Emergency stop button XB2-ES542C+ZB-BY9101
1
12 SB2
Down button
XB2-BA21C
1
13 SB1
Up button
XB2-BA21C
1
14 SQ1
Up limit switch
D4V-8108Z
1
15 SQ2 16 SQ9
safety switch Down limit switch
2 D4V-8108Z(Prepared by customer) 1
17 M101
Pump motor
1
7
18 QF101
Circuit breaker
C45N3P 25A(Prepared by customer) 1
19 R6
Resistor
100/0.5w
1
20 R4
Resistor
10K/0805
1
21 R5
Resistor
1K/0805
1
22 RW01
Rheostat
50K
1
23 WD01
Stabilovolt tube
3.3V
1
24 C3 C4 C7 C8
Electrolytic condense 10uf/50V 10uf/16V
3
25 IC01
Integrated circuit
LM358
1
26 U04
Integrated circuit
KA7812
1
27 U02 U03
Electric dipole
P521
2
28 TA01
Current transformer
20A
1
29 R9 R10
Resistor
24K/0805
2
30 R8
Resistor
5.1K/0805
1
31 R11
Resistor
300K/0.5W
32 C5 C6
Electrolytic condenser 0.015uF/1000V 0.01uF/1000V
2
Fig. 2 Electric Principle Diagram3 P
8
No
Type
Name
Description
Qty
1 LB01
Control power transformer DF30-110V-460V/0-24V 50VA
1
2 F1 F2
Fast melter
5A
2
3 VD1
Rectifier
RS-2510
1
4 VDR1
Voltage dependent resistor 10K/471 10K/821
1
5 R1
Resistor
1.8K/1W
1
6 C1
Electrolytic condenser 470uF/50V
1
7 KM01
AC contactor
BC-30-10
1
8 KA1 KA2
Middle relay
SRC-24VDC-SH
2
9 D1 D2 D3 D4 D5 D6 D7 Silicon rectifying diode IN4007
7
10 DF01
Electromagnetic valve DC24V
1
11 SB3
Emergency stop button XB2-ES542C+ZB-BY9101
1
12 SB2
Down button
XB2-BA21C
1
13 SB1
Up button
XB2-BA21C
1
14 SQ1
Up limit switch
D4V-8108Z
1
15 SQ2
safety switch
2
16 SQ9
Down limit switch
D4V-8108Z(Prepared by customer) 1
17 M101
Pump motor
1
18 QF101
Circuit breaker
C45N3P 25A(Prepared by customer) 1
19 R6
Resistor
100/0.5w
1
20 R4
Resistor
10K/0805
1
21 R5
Resistor
1K/0805
1
22 RW01
Rheostat
50K
1
23 WD01
Stabilovolt tube
3.3V
1
24 C3 C4 C8
Electrolytic condense 10uf/50V
3
25 IC01
Integrated circuit
LM358
1
26 U04
Integrated circuit
KA7812
1
27 U02
Electric dipole
P521
1
28 TA01
Current transformer
20A
1
29 R9
Resistor
24K/0805
1
30 R8
Resistor
5.1K/0805
1
Fig. 2 Electric Principle Diagram2 P
9
7. SERVICE INSTRUCTIONS
Do routine check of fasteners, packing and oil leaking. Do routine check of the function of the lift table. Before service the lift table, make sure to turn off the AC power
supply. After service it is necessary to check the function of the lift
table again. ONLY qualified personnel can do service work. Do routine check of the micro-switches on the safety guard. Do routine check of the hydraulic system by listening its noise,
touch motor’s surface. Caution: It is necessary to turn off the AC power supply before
touch motor’s surface. Pay attention to clear or even replace the oil filter after
operating for a long time. Appropriate lubrication is necessary to make the lift table work
easily and have a prolonged service life. Following table is recommended to service the lift table periodically.
Content
After every 500 hours’ After every 2000
working or every 3 hours’ working or
months later
every year
Check oil level of oil tank
Check the cleanliness of oil filter
Fasten all the connecting parts again
Check wear and tear of pressure oil pipes
Check hydraulic cylinder
Fix main parts tightly again
Check the function of micro-switches
Check whole working state of the lift table
Lubricate all the joints and pivot points
Check wear and tear of all axial bushes
Replace hydraulic oil for the first time
Accumulated working ten hours’
Replace hydraulic oil
Check oil leaking
Remark: stands for proceeding the item.
10
8. GREASING POINTS
1.Piston rod bearing 2.Lower running wheel 3.Lower arm fixing 4.Arm center 5.Upper arm fixing 6.Upper running wheel When greasing the bearings,
the Lift Table must not be loadedWhen determining oil levels, bear in mind that the tank
contains the greatest amount when the lift table is in its lowest position. Hydraulic oil must be treated as dangerous waste
9. TROUBLE SHOOTING
Note: Before service it is necessary to put down the prop lest the table lowers accidentally.
Trouble
Cause
Remedy
Table cannot lift while motor works normally
Eyebolt has not been
removed AC voltage phrases
mistake Electromagnetic
dysfunctions The table is overloaded
Remove eyebolt Correct AC voltage phrase Check the function of
electromagnetic valve and repair it Remove excessive load
Table cannot lift and motor does not work
Table cannot lower
Table’s legs go over limit position (if existed) while table lowers
Lowering limit switch (if existed) damaged
Lowering limit switch or micro-switch on safety guard damaged Electromagnetic valve dysfunctions Safety guard works Something wrong with electric circuit board
Internal leaking in electromagnetic valve Packing damaged in hydraulic cylinder
Replace limit switch
Replace lowering limit switch or micro-switch. Check the function of electromagnetic valve and repair it
Strike the UP button slightly
Replace electric circuit board
Repair electromagnetic valve and if necessary replace it Check and replace packing
Table cannot reach the highest position
Oil not enough Limit switch damaged
Fill enough oil Check and repair limit
switch. If necessary, replace it
The brand of oil is ISO HL32(such as Rando oil RO32D.T.E.oil
lightTurbo32)
11
10. SPECIFICATIONS
Model
Capacity
(lbs)
Lowered Height
(in.)
Raised Height
(in.)
Platform Length
(in.)
Platform Width
(in.)
Lift Time
(S)
Motor
Horsepower (HP) Voltage (V)
Net Weight
(lbs)
293227 2200
12 70 51 32 28~38 2P/1.5KW
541
293228 4400
14 70 51 33 35~45 2P/1.5KW 110 730
293229 8800 15.7 80.7
67 47 40~50 3P/2.2KW
1219
12
MODEL NO. 293227 13
PARTS LIST: MODEL NO. 293227
NO
DESCRIPTION
QTY NO
DESCRIPTION
1 Grease cup
2
42 Travel switch
2 Bearing GE25ZS
2
43 Bolt M5×10
3 Piston rod
2
44 Hexagon bolt M12×60
4 Retaining ring 55
2
45 Axle bearing
5 Cylinder cover
2
46 Bushing
6 Dust cover
2
47 Inside scissor (lower)
7 Snap ring 60
2
48 Spring washer 12
8 O-ring 55×2.65
2
49 Nut M12
9 O-ring 25×2.65
2
50 Outside scissor (lower)
10 Snap ring 25
2
51 Roller
11 Piston
2
52 Prop
12 Composite packing
2
53 Bushing
13 Cylinder welding
2
54 Washer 12
14 T joint
1
55 Hexagon head bolt M12×70
15 Steel tube
2
56 Bolt
16 O-ring 6×1.8
1
57 Axle bearing
17 Hose break valve
2
58 Axle bearing
18 Seal ring 16
2
59 Long pin
19 Pin for cylinder
2
60 Hexagon head bolt M8×20
20 Hexagon bolt M8×12
2
61 Short pin
21 Spring washer 8
14
62 Washer
22 High pressure hose
1
63 Hex bolt M6×20
23 Joint
1
64 Pin for piston rod
24 Compositepackingwasher 14
2
65 Inside scissor (upper)
25 Hydraulic power pack 26 Bolt M6×12
1
66 Outside scissor (upper)
1
67 Safety frame
27 Spring washer 6
1
68 Fixed-board
28 Washer 6 29 Connector lug 6-4 30 Indicator 6
1
69 Connected-board
1
70 Safety frame
1
71 Table
31 Pump pack base
1
72 Buffer-board
32 Spring washer 10
2
73 Self-locking nut M8
33 Hex screw bolt M10×20
2
74 Spring
34 Bolt M8×10
4
75 Nut M4
35 Control switch
1
76 Safety switch
36 Electric box
1
77 Fixed-board
37 Bolt M5×10
4
78 Lifting bolt M10
38 Chassis
1
79 Lifting bolt M16
39 Washer 6
2
80 Axle bearing
40 Bolt M6×10
2
81 Washer 5
41 Frame of travel switch
1
82 Spring washer 5
14
QTY
1 4 6 8 8 1 8 8 1 4 2 2 2 2 2 8 8 2 8 4 6 12 2 1 1 2 4 4 2 1 4 4 4 2 2 2 4 1 2 4 4
MODEL NO. 293228 15
PARTS LIST: MODEL NO. 293228
NO
DESCRIPTION
QTY NO
DESCRIPTION
1 Grease cup
2
41 Travel switch
2 Bearing GE30ZS
2
42 Bolt M5×10
3 Piston rod
2
43 Bolt
4 Retaining ring 60
2
44 Bushing
5 Cylinder cover
2
45 Bushing
6 Dust cover 48×40×6.5
2
46 Inside scissor (lower)
7 Snap ring 65
2
47 Washer 14
8 Guide-ring 2×20
2
48 Self-locking nut M14
9 Snap ring 40
2
49 Outside scissor (lower)
10 Piston
2
50 Roller
11 Composite packing
2
51 Prop
12 Cylinder welding
2
52 Bushing
13 T joint
1
53 Bolt
14 Steel tube
2
54 Bolt
15 O-ring 6×1.8
1
55 Axle bearing
16 Hose break valve
2
56 Axle bearing
17 Seal ring 16
2
57 Long pin
18 Pin for cylinder
2
58 Hexagon head bolt M8×20
19 Hexagon bolt M8×12
2
59 Short pin
20 Spring washer 8
26
60 Washer
21 High pressure hose
1
61 Pin for piston rod
22 Joint
1
62 Inside scissor (upper)
23 Composite packing washer 14 24 Hydraulic power pack
2
63 Outside scissor (upper)
1
64 Safety frame
25 Bolt M6×12
1
65 Fixed-board
26 Spring washer 6 27 Washer 6 28 Connector lug 6-4 29 Indicator 6
1
66 Connected-board
1
67 Safety frame
1
68 Table
1
69 Spring
30 Pump pack base 31 Spring washer 10
1
70 Buffer-board
2
71 Self-locking nut M8
32 Hex screw bolt M10×20
2
72 Nut M4
33 Bolt M8×10 34 Control switch 35 Bolt M5×10
4
73 Safety switch
1
74 Fixed-board
4
75 Lifting bolt M10
36 Electric box
1
76 Lifting bolt M16
37 Chassis 38 Washer 6 39 Bolt M6×10
1
77 Axle bearing
2
78 Washer 5
2
79 Spring washer 5
40 Frame of travel switch
1
16
QTY
1 4 6 8 8 1 10 8 1 4 2 2 2 2 8 8 2 20 4 6 2 1 1 2 4 4 2 1 4 4 4 2 2 2 4 1 2 4 4
MODEL NO. 293229 17
PARTS LIST: MODEL NO. 293229
NO
DESCRIPTION
1. Grease cup M6
2. Bearing GE40ET
3. Piston rod
4. Seal cover 52×40×7
5. Retaining ring 75
6. Cylinder cover
7. O-ring 40×2.65
8. Snap ring 80
9. O-ring 75×2.65
10. Snap ring 40
11. Piston
12. Seal ring 80×60×22.3
13. Cylinder
14. Hose break valve
15. Seal ring 16 16. Bushing 34×30×25
17. Pin 18. Hex bolt M8×20 19. Spring washer 8
20. T joint
21. Steel tube 22. O-ring 6×1.8
23. High pressure hose 24. Joint
25. Seal ring 18 26. Hydraulic power pack
27. Bolt M5×10
28. Electric box 29 Control switch 30 Pump pack base
31 Spring washer 10 32 Hex bolt M10×20 33 Bolt M8×12 34 Indicator 6 35 Connector lug 6-4
36 Washer 6 37 Spring washer 6
38 Bolt M6×12
39 Chassis 40 Washer 6 41 Bolt M6×10
QTY
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 9 13 1 2 1 1 1 2 1 4 1 1 1 2 2 4 1 1 1 1 1 1 2 2
NO
DESCRIPTION
42 Frame of travel switch
43 Travel switch
44 Bolt M5×10
45 Bolt
46 Bushing 34×30×20
47 Bushing
48 Inside scissor (lower)
49 Washer 18
50 Lock-nut M18
51 Outside scissor (lower)
52 Roller
53 Prop
54 Bushing
55 Bolt
56 Bolt 57 Bushing 50×45×20 58 Bushing 50×45×50 59 Pin 60 Pin
61 Washer
62 Spring washer 12 63 Hex bolt M12×20
64 Pin 65 Inside scissor (upper)
66 Outside scissor (upper) 67 Safety frame
68 Fixed-board
69 Connected-board 70 Safety frame 71 Table
72 Spring 73 Buffer-board 74 Lock-nut M8 75 Nut M4
76 Safety switch
77 Fixed-board 78 Lifting bolt M10
79 Lifting bolt M16
80 Spring washer 5 81 Washer 5
18
QTY
1 1 4 6 16 8 1 10 8 1 4 2 2 2 2 8 8 3 2 5 5 5 2 1 1 2 4 4 2 1 6 6 6 4 2 4 4 1 4 4
