NU-LIFT ACW20S User manual

Instruction Manual
ACW Pallet Truck with Scale
Note: Owner/Operator must read and understand this instruction manual
before using the pallet truck with scale.

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Thank you for using this hand pallet truck with scale. For your safety and correct operation of the scale, please
read these instructions carefully before using it.
NOTE: (1) All of the information reported herein is based on data available at the moment of printing. The
factory reserves the right to modify its own products at any moment without notice and incurring
any sanction. So it is suggested to always verify possible updates.
(2) Prior to use this hand pallet truck with scale, the battery of scale must be charged enough.
1. GENERAL SPECIFICATIONS
Model Capacity Graduation Weighing
Accuracy
Fork size
Length Width over forks Fork Width
ACW20S 2000 kg 0.5 kg ± 0.05% 1150mm 542mm 162mm
ACW20L 2000 kg 0.5 kg ± 0.05% 1220mm 687mm 162mm
Materials and specifications are subject to change without notice.
2. TO ATTACH HANDLE TO PUMP UNIT
2.1Remove the handle component , insert it into the pump shell .
2.2Remove the axle from plastic bag
2.3Insert the axle at one end of the pump shell, then pump shell and handle components connection. Please
note axle the position of the hole, Let the steel wire and nut on the chain through the axle hole (See the
hydraulic system diagram and the handle component diagram).
2.4Spring pin fixed the axle
2.5Handle press the pump plunger, and remove the pin.
2.6Raise the crank link and put the pin on rod and chain into the groove of crank link .
3. TO ADJUST RELEASE DEVICE
On the handle of the pallet truck, you will find the control lever which can be set in three positions (See
Fig. 1): LOWER=to lower the forks; NEUTRAL=to move the load; ASCENT=to raise the forks. After
assembling the handle, you can adjust the three positions.
3.1 First tighten the setting screw on the crank link until the LOWER position function works.
3.2 If the forks elevate while pumping in the NEUTRAL position, turn the setting screw clockwise until
pumping the handle does not raise the forks and the NEUTRAL position functions correctly.
3.3 If the forks descend while pumping in the NEUTRAL position, turn the setting screw counter-clockwise
until the forks do not lower.
3.4 If the forks do not descend when the control lever is in the LOWER position, turn the setting screw
clockwise until raising the control lever lowers the forks. Then check the NEUTRAL position as per item
4.2 and 4.3.
3.5 If the forks do not lift while pumping in the ASCENT position, turn the setting screw counter-clockwise until
the forks elevate while pumping in the ASCENT position. Then check the NEUTRAL and LOWER
position as per item 4.2, 4.3 and 4.4.
4. MAINTENANCE
4.1 OIL
Please check the oil level every six months. Total oil amount is about 260 ml, add injection oil 50-100 ml,
this must be with the forks in the lowered position.
Add or change the hydraulic oil according to the table below.
Temperature Oil
-20~+40L-HV46 Hydraulic oil
4.2 HOW TO EXPELAIR FROM THE PUMP UNIT
Air may enter the unit when the seals are replaced. Lift the control lever to the LOWER position, then

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move the handle up and down for several times.
4.3 DAILY CHECK AND MAINTENANCE
Daily check of the pallet truck can limit wear and tear of the unit. Pay special attention to the wheels ,the
axles , the handle , the forks and lift and lower control.
4.4 LUBRICATION
Use motor oil or grease to lubricate all moveable parts.
5. GUIDE TO SAFE OPERATION
For safe operation of the truck, please read all warning signs and instructions here and on the truck before
using this truck.
5.1 Do not operate the pallet truck unless you are familiar with it and have been trained or authorised to do
so.
5.2 Do not operate the truck unless you have checked its condition. Give special attention to the wheels,
the handle assembly, the forks, lift and the lower control.
5.3 Do not use the truck on sloping ground.
5.4 Never place any part of your body in the lifting mechanism or under the forks or load. Do not carry
passengers.
5.5 The operator should wear gloves and safety shoes for protection.
5.6 Do not handle unstable or loosely stacked loads.
5.7 Do not overload the truck.
5.8 Do not subject to unbalanced load, either side to side or along the length of the frame (refer to Fig. 2/B).
5.9 The capacity of the truck assumes an evenly distributed load with the centre of the load being at the
halfway point of the length of the forks (refer to Fig. 2)
5.10 Make sure that length of the forks matches the length of the pallet.
5.11 Lower the forks to lowest height when the truck is not being used.
5.12 At other specific conditions or places, the operator should operate the pallet truck carefully.
6. TROUBLE SHOOTING
NO TROUBLE CAUSE ACTION
1 The forks do not lift
to maximum height. -Not enough hydraulic oil. -Add more oil.
2
The forks do not lift
up.
-Not enough hydraulic oil.
-The oil has impurities.
-Discharge valve is out of
adjustment.
-Air in the hydraulic oil.
-Pour in more filtered oil.
-Change the oil.
-Adjust the setting screw .
-Expel the air.
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The forks do not
descend.
-The rod and the pump cover
are deformed resulting from a
seriously unbalanced load.
-Apart has been broken or
been deformed resulting from
unbalanced load.
-The setting screw is not in the
correct position.
-Replace the rod or pump
cover .
-Repair or replace component.
-Adjust the setting screw
4 Leaks
-Seals worn out or damaged.
-Some parts may be cracked or
-Replace seals with new ones.
-Check and replace with new
ones.

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worn out.
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The forks descend
without being
lowered.
-Impurities in the oil cause the
discharge valve (B) to fail to
close.
-Air in the oil.
-Seals worn or damaged.
-Discharge valve (B) is out of
adjustment.
-Replace with filtered oil.
-Expel the air.
-Replace with new ones.
-Adjust the setting screw .
7. WEIGHING OPERATION
7.1 Put the control lever in the LOWER position and lower the truck to lowest position.
7.2 Press the key to turn the system on. After the start-up sequence the indicator will display the weight.
7.3 Weighing method for gross weight::
Press the ZERO key to set the gross weight to 0. Put the forks under the pallet and check that the load
is properly balanced. Put the control lever in the ASCENT position, pump the handle to make the forks
rise until the pallet has left the ground. When the indicator is stable, the gross weight of the goods (total
weight of the pallet and the goods) is shown.
7.4 Weighing method for net weight:
To display the weight of the goods without the weight of the pallet (or other container):
7.4.1 Weigh single standard pallet, for example: weight of pallet: 40kg.
7.4.2 Press the ZERO key, the indicator will display “0kg”.
7.4.3 Remove the pallet from the forks, the indicator will display “-40kg”.
7.4.4 Weigh the goods on the pallet as shown in 7.3, when the indicator is stable, the net weight of the goods
is shown.
7.5 Switch between kg and lb.
When the weight is shown in kg’s, Press on the ZERO key will soon be kg to switch to the pound.
Press on the ZERO key again and the unit shown will switch back to kg.
7.6 Turn off the Indicator
Press on the ON ／ OFF key until the indicator displays “OFF”. Releasing the key will turn off the
indicator.
8. BATTERY POWER DATAAND REPLACEMENT
8.1 How to change batteries:
8.1.1 Loosen the screws on the battery cover and remove the cover.
8.1.2 open the screw on battery and pull out battery ,out the socket.
8.1.3 put the new battery and insert the socket.
8.1.4 Screw the battery cover plate back into position.

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PARTS DRAWING OF PUMP ASSEMBLY

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PARTS LIST OF PUMP ASSEMBLY
No. Description Q’ty No. Description Q’ty
301S Spring Cap 1
302S Spring 1
303 Pump Piston 1
304 Dust Ring 1
305 Seal 1
306 Dust Cover 2
307S Locking Ring 2
309S Bearing 4
310 Loading Wheel 2
311S Elastic Pin 1
312S Elastic Pin 2
313S Thrust Plate 1
314S Retaining Ring 1
315S Bearing 1
316S Shaft of loading Wheel 1
317S Nut 1
318S Screw 1
319S Lever Plate 1
320S Elastic Pin 1
321 Valve Cartridge 1
322S Pump Body 1
323 Seal Washer 1
324S Screw Plug 1
325 Seal 1
326 O-Ring 1
327 Dust Ring 1
328 Piston Rod 1
329 Steel Ball 1
330S Spring 1
331 O-Ring 1
332S Bolt 1
333 Spring 1
334 Spindle of safety valve 1
335S Grease Cup 1
336S Cylinder 1
337S Cover of Bearing 1
339 Seal Ring 1

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PARTS DRAWING OF HANDLE
PARTS LIST OF HANDLE
No. Description Q’ty No. Description Q’ty
101S Release Rod 1 109AS Bushing 1
102S Chain 1 110S Draw-bar 1
103S Adjusting Bolt 1 112S Elastic Pin 1
104S Adjusting Nut 1 113S Blade Spring 1
105S Axle with Hole 1 115S Elastic Pin 1
106S Elastic Pin 2 116S Elastic Pin 1
107S Bushing 2 117S Control Handle 1
108S Roller Pin 1 118 Roller 1
109S Pressure Roller 1 119S Elastic Pin 1

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PARTS DRAWING OF FRAME

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PARTS LIST OF FRAME
No. Description Q’ty No. Description Q’ty
201S Fork frame 1 241S Screw shaft 2
202S Screw 1 242S The wire ring 2
203S Rock-Arm 1 243S Washer 4
204S Bushing 2 244S Screw 4
205S Shaft 2 245S Washer 8
206S Bushing 2 246S Screw 4
207S Bushing 2 247S The weighing sensor 4
208S Retaining ring 2 248S Weighing plate 1
209S Joint 2 249S Screw 8
210S Pin 2 250S Washer 8
211S Nut 2 251S The connecting plate 1
212S Pushing rod 2 252S Instrument shell 1
213S Retaining ring 2 253S Screw 4
214S Shaft 1 254 Printer 1
215S Bushing 2 255 Weighing display 1
216S Shaft 2 256 Rechargeable battery 1
217S Intermediate roller 4 257 Charger 1
218 Extending roller 2
219S Elastic pin 2
220S Elastic pin 4
221S Shaft 2
222S Frame of roller 2
223S* Shaft 4
225S Washer 8 or 4
226S Bearing 8 or 4
227S* Loading roller 4
228S* Link plate 4
229S* Shaft for roller 4
230S Elastic pin 12 or 2
231S Bolt 2
232 Enter roller 2
233S Locking nut 2
234S# Loading roller 2
235S# Shaft for roller 2
236S Washer 2
237S Grease Cup 1
240S Grease Cup 2
NOTE: *--For double wheel ; #--For single wheel

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9. WIRING DIAGRAM OF SCALE, SENSOR
10. CHANGING THE PAPER
10.1 Pull the lever to open the cover of the printer. Place the paper roll. Make sure the flap is at the top of the
printer, facing towards you. Hold on to the paper when closing the printer. Push the cover closed firmly.
L1 ～ L4
Connect sensor connector
GND silver
－ S white
＋ S green
－ E black
＋ E red
L0 － Connect meter connector
GND silver
－ S white
＋ S green
－ E black
＋ E red

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11. TROUBLE SHOOTING OF WEIGHING UNIT
NO TROUBLE CAUSE SHOOTING
1 The instrument
showsOVER
-The load is too big for the scale -Remove the load immediately.
2 Text is not printed
clearly on the
ticket
-Battery voltage is too low -Charge the batteries.
3 The scale is not
accurate
-The fork shoe is touching the
bottom part of the scale
-Cable in junction box is loose.
-1 of the load cells is broken
-Remove anything that restricts the movement of
the scale.
-Check the connection in junction box after
confirming safe.
-Stand on the 4 corners of the scale. The load cell
in the corner with a different weight should be
replaced.
4 Indicator can’t be
turned on.
-Battery voltage is too low.
-Battery life is complete.
-Charger is damaged.
-Charge the batteries.
-Replace rechargeable battery with new ones.
-Check charger output voltage replace charger
with new one.
5 Battery can’t be
charged.
-Battery is damaged.
-Charger is damaged.
-Replace rechargeable battery with new ones.
-Check charger output voltage replace charger
with new one.