Kleton MJ523 User manual

Instruction Manual
MJ523
Mobile Hydraulic Scissor Lift Table
1650 lbs. (750 kg)

WARNING!
Read this operation manual carefully and understand fully the
operating instructions. Improper use of this unit could result in injury.
• DO NOT put foot or hand in scissor mechanism.
• Keep neighbouring persons away from the unit when in use.
• DO NOT stand in front or behind of lift table when it is in use.
• DO NOT crawl under the table.
• DO NOT put foot in front of rolling wheels.
• DO NOT use lift table on slope or inclined surfaces.
• DO NOT lift or ride people on this unit.
CAUTION!
• DO NOT move this unit when lifting or lowering the bed or when the bed is in an elevated
position. (Bed must be lowered when the unit is running)
• DO NOT use this table for any purpose other than it’s intended use and do not load with more
than the rated capacity.
• DO NOT allow persons to operate this table without complete understanding of its operation.
• DO NOT lower the bed too quickly.
• During loading/unloading operation, do not release the parking brake.
• Load should be distributed on at least 80% of the table area. Stop operation of lift table if load
becomes too unstable, do not place objects protruding off edge of the bed.
• DO NOT modify lift table without manufacturers written consent.
Daily Inspection
Daily inspection of this unit is critical in order to locate any malfunction or fault.
Check the following daily before operating your lift table.
1. Check for bending or cracking of the lift table.
2. Check for any oil leakage from the cylinder.
3. Check for vertical creep of the table.
4. Check for smooth movement of the wheels.
5. Ensure that brakes are fully functional.
6. Ensure that all nuts and bolts are rmly tightened.
Assembly method
The lift table is packed in a cardboard box. Assembling of the jack up pedal is required.
WARNING: Assembly work must be done on a at surface; wheels must be choked to prevent
accidental rolling of the unit.
1. Insert the jack pedal into the pedal pipe and position the tapered side pedal end to right. Tighten
the jack pedal using the removed nut and washer with the smallest hex key supplied in the box.

OPERATING THE LIFT TABLE
How to use the brake
The brake is located next to the swivel caster on right hand side.
1. To brake the lift table, press the brake pedal.
2. To release the brake, lift up the brake pedal.
CAUTION: Put lift table in brake mode when stationary in order to prevent sudden movement.
Lifting the Table
To lift the table, press the lifting pedal several times until the table reaches the desired height. The table
lowers slightly after reaching the highest position. Maximum Capacity of this table is 1650 lbs. (750kg).
WARNING: Do not overload lift table, stay within the rated capacity.
Do not load the table on sides or ends only. Load must be distributed on at least 80% of table area.
Lowering the Table
WARNING: DO NOT put foot or hand in scissor mechanism. The rotating knob lowers the table.
NOTE: The hydraulic cylinder is designed to hold table. As is the nature of the hydraulic system, table
lowers very slowly over an extended period of time. Please note that the table does not stay at the same
height indenitely.
Specifications
Model Capacity Table Table Height Foot Pedal
Strokes to Elevate Wheel Weight
MJ523 750 kg.
1650 lbs.
1000 x 510 mm
39.4" x 20.1"
420-900 mm
16.5" x 35.4" 45 147 mm 5.75"
125 kg.
275 lbs.
Service Instructions
Change hydraulic oil every 12 months
Lubricate the following areas every month: Fitting of Cylinder/oil, Roller Friction Surface/grease,
Link Pin/oil, Pedal Fitting Point/oil, Grease Nipple/grease
Troubleshooting
If the table does not lift when pressing lifting pedal several times:
• Adjust the control valve located on
the hydraulic cylinder (A) by releasing
the set screw and locking nut (B) using a
at screwdriver and a 14mm wrench.
• Test the control lever and lifting pedal.
A B

Part
No.
Order
No. Description Qty.
101M Handle Grip 1
102 Control Handle 1
103 Elastic Pin 1
104 Nut 1
105 Bolt with Hole 1
106 Jacket 1
107 Pull Rod 1
108 Elastic Pin 1
109 Shaft 1
110 Cam 2
111 Pedal 1
112 Screw 3
113 Nut 3
114 Big Washer 2
115 Elastic Washer 2
116 Bolt 2
117 Bolt 2
118 Nut 2
119 Round Nut 4
120 Spring 2
121 Seat of Wheel 2
122 Bolt 2
Part
No.
Order
No. Description Qty.
123 Brake 2
124 Washer 4
125 MK241 Bearing 8
126 MK242 Wheel 4
127 Axle 2
128 Elastic Washer 2
129 Nut 2
130 Bearing 2
131 Washer 2
132 Retaining Ring 2
133 Frame 1
134 Bolt 1
135 Shaft 1
136 Retaining Ring 4
137 Axle of Wheel 2
138 Pump Unit 1
139 Pin 1
140 Roller 1
141 Retaining Ring 1
142 Pin 1
143 Washer 2
144 Retaining Ring 2
Part
No.
Order
No. Description Qty.
145 Connecting Rod
146 Cushion 1
147 Bolt 1
148 Washer 1
149 Elastic Washer 1
150 Nut 1
151 Protective Cover 1
152 Pedal Bar 1
153 Retaining Ring 4
154 Roller 2
156 Table 1
157 Retaining Ring 2
158 Shaft 2
159 Fork Arm 1
160 Elastic Washer 1
161 Screw 1
155 Roller 2
165 Elastic Pin 2
A MN689 Front Wheel Assembly 2
B MN688 Steer Wheel Assembly 2
LIFT TABLE PARTS LIST
B
A
MK223

Part
No.
Order
No. Description Qty.
201 Seal Washer 1
202 Pump Cylinder 1
203 MJ701 Dust Ring 1
204 MJ702 Y-Seal 1
205 Pump Piston 1
206 Spring 1
207 Spring Cap 1
208 Retaining Ring 1
209B Joint Plate 2
210 Pin 1
211B Pump Body 1
212 Elastic Pin 1
213 Spring 1
214B Strike Pin 1
215 MJ713 Seal Washer 1
216B Axle Sleeve 1
217 MJ715 O-Ring 2
218 Nut 1
219 Screw 1
Part
No.
Order
No. Description Qty.
220 Lever Plate 1
221 Nut 1
222 Elastic Washer 1
223 Washer 1
224 Bolt with Hole 1
225 Bolt with Hole 1
226 Nut 1
227 Plug 1
228 MJ726 O-Ring 1
229 Adjusting Bolt 1
230 Spring 1
231 Spindle of Safety Valve 1
232 Steel Ball 1
233 MJ731 O-Ring 1
234 Seat of Pumping Valve 1
235 Spindle of Pumping Valve 1
236 Spring 1
237 Seal Washer 1
238B MK319 O-Ring 1
Part
No.
Order
No. Description Qty.
239B MK320 Seal Washer 1
240B Cylinder 1
241B Housing 1
242 Bolt 1
243 Seal Washer 1
244 Retaining Ring 1
245B Washer 1
246B MK327 O-Ring 1
247B MK328 Cup Packing 1
248B Piston 1
249B MK330 O-Ring 1
250B Piston Rod 1
251B MK332 Seal Washer 1
252B Cylinder Cap 1
253B MK334 O-Ring 1
254B MK335 Dust Ring 1
255B Plug 1
256 Liquid Throttle Sheath 1
257 Bolt 1
258B MJ747 O-Ring 2
HYDRAULIC CYLINDER PARTS LIST