Read this manual carefully and understand completely before operating stackers. Keep filing this manual for
future reference. If this copy is lost, please contact your local supplier for a replacement.

Explanation of Terms and Symbols
In this manual, 「Warning」, 「Caution」 are defined and specified as below. Notice of Warnings arevery important for safe operations. As these are very Important to protect operators from accidents
resulting in personal injury and death, and damage to property, so make sure to read thoroughly andunderstand fully before operation.

Warning

Incorrect operation may result in serious injury or death of the operator.

CautionIncorrect operation may result in injury and damage to the property.

◎ Hazard or unsafe practice which, if not avoided, may result in DEATH or SEVERE PERSONAL INJURY andPROPERTY DAMAGE.

DO NOT use lifter on slope, unlevel Always travel with forks in lowered DO NOT load one fork more than

NEVER sit, stand or ride on forks.
or soft surface. Lifter may become position. SEVERE PERSONAL
other and DO NOT load tips onSEVERE PERSONAL INJURY orINJURY and PROPERTY DAMAGE forks. SEVERE PERSONAL INJURY DEATH could result.
unstable and /or uncontrollable.
SEVERE PERSONAL INJURY and could result.
or DEATH could result.
PROPERTY DAMAGE could result.

NEVER go under forks.
SEVERE PERSONAL INJURY or
DEATH could result.

DO NOT overload lifter.
ALWAYS stay within designated

DO NOT jump start and turn steep DO NOT use in areas of multi level
floor surface that could create loss
with high speed accelaration.

capacity and load center rating.

Lifter may become unstable/ oruncontrolable.

DO NOT put hand near chainsprocket or other moving parts.
SEVERE PERSONAL INJURY
could result.

Fully attach the battery terminal
cover. Danger of fire or electric
shock from short circuit couldresult.

KEEP FEET CLEAR of rollingwheels that could result inSEVERE PERSONAL INJURY.

of control and result in SEVEREPERSONAL INJURY.

USE ONLY in areas clear of all
KEEP AWAY from open flame
personnel and objects to prevent when charging battery.
severe personal injury and property Handle battery after fully readingdamage.
the instruction manual.

SHOCK HAZARD !
Disconnect power plug before
opening Swtichboard and Control
Panel.

Replace chain every four years or if
inspection reveals excessive wear onlinks, pins, side plates and deformed,bent, rusted or broken links.

- 1 -Battery is not charged
upon delivery. Pleasecharge after reading thisOperation and Service
Manual and the manualsupplied with charging
unit.

- 2 -

Model

ST50A

Capacity (Kgs)
A

Vertical Travel (mm)B

Fork Min. Height (mm)

ST98A

500

STW38A

980

STW65A

380

1500

ST80AWW

650

ST98AWN

800

2420

980

1500

90
1590

C

Fork Max. Height (mm)D

Overall Height (Min-mm)

D'Overall Height (Max-mm)

1969

2510
1967

1590

1708

1734

2923

2949

1967

E

Overall Width (mm)

757

876

760

876

1400

941

F

Overall Length (mm)

1509

1916

1501

1816

2016

1816

H

Max. Width of forks (mm-Fork Outside)

600

726

600

726

I

Min. Width of forks (mm-Fork Outside)

232

276

232

276

G

Fork Length (mm)

600

800

600

J

Fork Width (mm)

110

125

110

K

From Front Wheel end to Fork End (mm)

34152

34

152

800

1000

800

125152

A

B＊Location of Fork at lowered position

L

Load Center (mm)

300

400

300

400

500

400

Outside distance between Arms (mm)

580

700

580

700

1400

900

Inside distance between Arms (mm)4005004005001200700

Φ70 X 73

Front Wheel (Polyurethane) OD x W (mm)Rear Wheel (Polyurethane) OD x W (mm)Φ150 X 42

Φ180 X 50

Φ150 X 42

Drive Wheel (Motor in Wheel)
Lifting Motor (KW)

0.7KW

0.9KW

0.7KW

Minimum Turning Radius (mm)Battery Capacity(12V)

0.9KW

0.9KW

1076

1287

1083

1287

64Ah/5Hr

92Ah/5Hr

64Ah/5Hr

100Ah/5Hr

92Ah/5Hr

95D31R

130E41R

EB65

EB100

130E41R

JIS Standard

Lifting Speed (Seconds)
Driving Speed (With loaded)Φ180 X 50

0.4KWDrive Motor(Motor in Wheel)OΦ200 X 42

Φ220 X 70

2235

2230

1641

1336

35

2.2km/h

2.5

Driving Speed (With unloaded) km/h

Adjustable

Lowering Speed (Seconds)
Machine Weight (Kgs.)

209338258

375

Oil Volume (Litter)

1.55

2.76

1.51

2.5

* Location of Fork at lowered position

A : On top of Arm(Leg),

Specifications are subject to change without notice- 3 -B : At side of Arm(Leg)

364
2.76

348

DO NOT use this stacker at all if repairs are required or if you suspect a malfunction.

Perform the Pre-Operation checks before operating everyday.
1. Any damage, distortion or crack in post
2. Any damage, distortion or crack in carriage and forks
3. Smooth movement of front and rear wheels
4. Any oil leak from hydraulic line or cylinder
5. Any damage, kink or crack in chain
6. Check if brake works properly
7. Any natural lowering
8. Fastening of bolts and nuts
9. Is battery liquid at adequate level ?
10. Looseness of battery terminal
11. Is battery fixed firm ?
12. Smooth movement of Lifting & Lowering Lever. Does lever return to neutral when released ?
13. Check smooth operation of handle. Any excessive over-steering ?
14. Check smooth operation of Accelarator Switch. Does switch return to neutral when released ?
Check the smooth operation for driving forward, reverse, high speed and low speed.
15. Check the operation of Main Switch and Emergency Stop Switch.
16. Check the noise, excessive wear and uneven wear of the Drive Wheel.
17. Check if the battery is charged.

(1) Preparation of the operation① Insert the Key into Key Switch and turn clockwise.
② Turn on Main Switch.

Main Switch would be turnd "OFF" in case of overload
operation to protect motor.

(2) Lifting and Lowering
Forks can be lifted and lowered by operating
Lifting & Lowering Lever.
① Forks lift up by tilting the lever towards operator② Forks lower by pushing the lever forward.
Lifting and lowering speed can be adjusted by pushing and tilting angle.

DO NOT lift up the load or anything above the rated capacity.
DO NOT lift the load only at the tip of the forks. Lift up the load within loading diagram(※) capacity.
※ Load Center is the distance from root of the fork for the max capacity available.
Refer to the loading diagram of each model.

DO NOT keep lifting with excessive slow lifting speed and continuously over 40 seconds.
Rapid lowering operation may result in load collapse and dangerous. Also rapid
lowering and sudden stop may result in impact load and damage to the unit.

(3) Driving Operation① Drive the lifter by operating Accelarator
Switch.
② Driving speed in both forward or reverse
driving can be adjusted by the operation ofAccelarator Switch.
③ Pushing Switch further would increase speed.
④ Lifter stop immediately when pushing the"Emergency Stop Switch".

DO NOT move or turn around with load kept at high position.
DO NOT jump start and turn steep which may result in uncontrolable and unstable of lifter.

- 4 -(4) HornPush the horn button.

(5) Volt Meter
Volt Meter shows the voltage of battery. Refer to for the battery remaining capacity.

Battery life will decrease if dischaged over 80% continuously.

(6) Battery and Charging■ How to Charge Battery① Make sure that battery fluid is present upto the designated fluid level.
Add purified water if the fluid is insufficient.
② Unplug the battery socket and insert the charging device into the open
socket (indicating as "charging port") to charge the battery.
③ Refer to the instruction manual supplied with the charger regarding
methods of use.

・Keep battery away from open flame when charging.
Battery may be at risk of explosion.
・Choose a well-ventilated area to charge the battery.
Hydrogen gas may be produced, creating the dangerof explosion.
・Charging the battery with insufficient battery fluid
repeatedly also could result in the risk of explosion.

Charging port

The charging port
must be connectedusing a socketwith a sealattached.

■ Battery Life
① Battery is a consumable product and is not applicablefor the product warranty.
② Battery can be used for 150 to 180 charges, butmaintenance and storage conditions also strongly
influence the life of battery.

Do not connect sockets
without a seal attached.
Connection at this port
will not charge thebattery.

Cover the battery termial completely. Electrical short circuit can cause danger of fire, orelectric shock. DO NOT overcharge or boost the charger. Also DO NOT discharge the battery

Lowering Valve

Switch Valve

ReliefValve- 5 -Battery

Power Unit

Switch Box"UP""Down"
Volt Meter
BuzzarControl Unit
Speed Order
Drive Wheel・Forward・Reverse

Emergency Stop
Electric Brake

Unit Remote Control Cable C
Buzzar

Fuse Holder
Unit Remote Control Cable B

Unit Monitoring Cable A

Unit Remote Control Cable A
CB Cable A

Unit Monitoring Cable B

Unit Cable B

Unit Cable D

SF TubeUnit Cable E

Battery Cable C
Unit Cable C
Power

Unit Cable B
Unit Cable A
Battery Connector

Handle Cable

Battery Cable A
Battery Cable B
RedWhite/BrowBlue

Drive Wheel
BatteryWhite/Gree- 6 -White White Pink White WhiteBlue Yellow Black Green BlackPerform the periodic inspections for safe operation.
Inspection Point

Loading & Hydraulic Device

Battery & Electric Device

Braking and Driving
Others

Inspection Items
・Distortion or Crack of Frame and Fork・Carriage movement in post mast・Any rust, damage, crank and tension of chain and adjustment
・Smooth movement of lifting and lowering
・Any oil leak from cylinder
・Any damage, oil leak on high pressure hydraulic hose・Oil level in oil tank and oil leak from oil tank・Operation of battery charger
・Operation of battery meter・Liquid level, capacity and cleanesss of battery・Looseness and damage of battery terminal
・Switch operation
・Connection, contact and burnout of the contactor
・Installation of terminal cover・Looseness of wiring and teminal
・Ensure that the density of each battery cell is
1,270 (at 20°) or greater・Oversteering of the handle
・Braking function
・Any oil leak from gear case・Damage and wear of the wheels
・Fixing bolts and pin
・Lubrication and greasing
・Any damage and looseness on botls and nuts
・Any damage or distortion of the overall unit and frame
・Sliding portion of rollers
・Greasing to chain■ Types of Hydraulic Oil■ Replacing Battery

Viscosity classification ISO VG32 abrasion
resistant hydraulic fluid oil;
Fluid volume : 1.6 liters
Oil BrandEssoIdemitsu
Showa Shell
MobileCosmoKygnus

Product Name
Nuto H32, HP32, Unipower SQ32
Super Hydraulic Fluid 32
Terasu Oil 32, K32
Mobile DTE24
Cosmo Hydro AW32
Unit Oil WR32

Battery used for this stacker is
JIS standard battery. Make sure to
replace with same standard spec.
Applicable Model No.
ST50A
ST80AWW, ST98A, ST98AWN
STW65A
STW38A

JIS Spec.
GR-95D31R
GX-130E41R
EB100
EB651) Make sure to remove the battery socket before work.
2)Always be cautious of a short circuit.
3) DO NOT mistake the (+) and (-) terminals.
4)Make sure to cover the (+) terminal.
5)Make sure to secure the battery with a battery clamp to prevent vibrating etc.

Perform the adjustment of the Drive Wheel when wheel has become worn
following the below procedure.

Handl1) Loosen the Hex Nut and Spring of Ⓐ
2) Install(Put) the adjustment clip plate ( Ⓑ - t3mm, or t6mm )between Handle Base and Drive Wheel depending on theabrasion condition.
3) Put the Nut and Spring of Ⓐ back and fasten.

- 7 -Driver Wheel

The below show how to deal with relatively minor malfunctions. For other further issues,please contact your supplier of this stacker.
Symptoms of malfunction

Possible Cause
Action・Key swtich and main switch
・Turn on Main and Key switch
is not turned on
Does not run, and does not ・Battery sockeet is not・Connect the battery socket
lift up and lower
connected
・Short of battery capacity ・Check and charge battery
・Fuse is blown
・Check 100A, 10A fuse, and replace
・Broken wire of Remote
・Check the wire and replace cable
Control Cable for run
Does not run
・Broken wire of Motor Cable
either forward and・Check the wire and replace cablefor runreverse・Broken wire of Brake Cable
・Check the wire and replace cablefor runDoes notrun
・Broken wire of Remote
・Check the wire and replace cable
Control Cable for run
Does run only
・Broken wire of Motor Cable
・Check the wire and replace cableforward, or reverse for run
・Defects of Accelarator
・Adjust switch or replace
SwitchCheck through 【Actual Wiring・Wiring defects
Schematic】
Motor does not run
・Battery Socket is loose
Fix the socket firmly
Does not・Defective Power Unit
Replace Power Unit
lift up・Relief Valve is not
Readjust Relief Valveadjusted Properly
Motor is running
・Power Unit(Pump) defects
Replace Power Unit (Pump)
・Hydraulic Oil is not fullFill the oil
・Defective seating of
Replace Lowering Valve
Lowering Valve
Lowers natually
・Piping defects
Repair location of leak・Battery charge is
Does lift up, but does not run
Check battery and charge
insufficient
Check through 【Actual Wiring
・Wiring defects
Schematic】
Does not lower
・Defective Lowering Valve
Replace Lowering ValveAt Cylinder
・Defective Seals
Replace Cylinder seals
Oil LeakAt Pipe or Joint ・Improper fastening
Check and Fasten
At Air Breather
・Excessive Oil
Adjust fluid to appropriate level

When disposing of this stacker, dispose of the metal, non-metal, plastic, and hydraulic oil
components separately. There are regulations for disposing of the hydraulic oil, so makesure to sourt and follow the local rules. If you have any questions regarding disposal,
please check with your supplier of the stacker.

- 8 -Should the unit malfunction within the warranty period (Within one (1) year of purchase)when it has been operated in accordance with the user manual and the warning labels on theunit, we will adjust the defective component,repair it, or send a replacement part free ofcharge. However, this does not apply in the case of secondary damage or any damage towhich any of the following apply:(1) Damage or injury resulting from incorrect operation, improper inspection, improper
storage, or any other type of negligence(2) Damage of injuries resulting from changes (modifications) that negatively impact theproduct's operation mechanism(3) Consumable parts that are damaged and need to be replaced(4) Damage or injury resulting from fires, earthquakes, wind, floods, or other natural
disasters or external factors(5) Problem resulting from specified parts not being used
(6) Error in the warranty claim process (Ex: failure to indicate Model or Serial No.etc.)(7) Damage or injury resulting from installation(8) Repairs performed not by our company or not by our authorized dealer(9) Damage confirmed to be the result of overuse, user error, or accident
Furthermore, all rubber components and other naturally degradable products used in thisproducts and its accessories, as well as all consumable products, fall outside the scopeof this warranty.
This lift is not waterproof, so rust, corrosion, short citcuits, and other damage caused by water is notcovered under warranty.

If you decide to file claim for this product based on the above, please contact your dealer.
The dealer will carry out the necessary procedures. In addition, we can not decide whether
or not any particular situation falls within the scope of this warranty.

・Product does not work properly
・Product stilldoes not work properly→→・Repairs within the warranty
period→・Repairs out of warranty period→・Availability of Spare Parts→

Review the manual and try to find solution
Contact your supplier and request repairs
The warranty is valid one year from the date ofpurchase. We will service your product inaccordance with warranty conditions.
Consult with your supplier
The spare parts are available for 8 years after
discontinuing manufacturing

Contact your lifter supplier for any information regarding after service.
When contacting your lifter supplier, provide following information.
・Model No.
・Serial No.
・Purchase Date・Conditions of trouble
Record the above information in the table below for future inquiries.
TypeSerial No.
Purchase Date
Lifter SupplierInstaller
Trouble Date and conditions

Date :
Date :
Date :
Date :- 9 -EOM-ST Battery Powered Lift & Drive 19.11