Manually Operated Hydraulic Stackers

Operation andService Manual

STS15

STS38

ST20(H)WWSTL25(H)ST25(H)

ST30(H)WWSTL38(H)

ST38(H)

ST38(H)WN

STL50(H)

ST50(H)

ST50(H)WN

STL65(H)ST65(H)

ST80(H)

ST80(H)WW

ST100(H)

ST100(H)WN

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

Warning !
◎ 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 thanNEVER 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 andcould result.

or DEATH could result.

Replace chain every four years or if DO NOT use in areas of multi levelSEVERE PERSONAL INJURY orDO NOT overload lifter.
ALWAYS stay within designatedinspection reveals excessive wear on

floor surface that could create loss

DEATH could result.

capacity and load center rating.

links, pins, side plates and deformed,of control and result in SEVERE

bent, rusted or broken links.

PERSONAL INJURY.

PROPERTY DAMAGE could result.

NEVER go under forks.

DO NOT put hand near chain

KEEP FEET CLEAR of rollingsprocket or other moving parts.

wheels that could result inSEVERE PERSONAL INJURY

SEVERE PERSONAL INJURY.

could result.

Caution !
◎ Hazard or unsafe practice which, if not avoided, may result in MINOR or MODERATE PERSONAL INJURY and PROPERTY DAMAGE.
1. READ THIS OPERATION MANUAL COMPLETELY BEFORE USING AND THOROUGHLY UNDERSTAND AND FOLLOW All SAFETY
INSTRUCTIONS. Wrongful use may result in accident.
2. This stacker lifter is designed to use on smooth floor with balanced, stable, firmly stacked load that is within capacity and loading diagram.
DO NOT use for any other purpose than its intended use.
3. Stacker lifter shall be operated by TRAINED personnel only. OPERATOR shall read "Operation Manual" completely and thoroughly
understand the controls and operation of this equipment BEFORE oeprating the lifter.
4. Do Not lower the fork with load with fast speed. Ot it may result in impact load and damage the stacker.
5. ALWAYS observe lifter and ALWAYS stay at the controls while the lifter is in motion. RELEASE controls and STOP lifter immediately if loadon the lifter appears to become unstable. NEVER leave the loaded lifter unattened unless the forks are fully lowered position.
6. Set the parking brake and park the stacker when moving the load onto the fork. Or the unit may start to move all of a sudden duringmoving of the load and may result in falling of the load.
7. DO NOT use lifter with unstable, unbalanced or loosely stacked load. Unbalanced loads may become unstable and fall.
SEVERE PERSONAL INJURY and PROPERTY DAMAGE could result.
8. Do Not handle unsecured or unstable load that could fall backwards.
9. Perform the inspection following to the instructions of Operation Manual.
10. Do Not alter or modify the stackers in any way.
11. Do Not use forks or lift as a hoist or to pull up the load.
SEVERE PERSONAL INJURY and PROPERTY DAMAGE could result.
12. Keep the forks be widened equally in operation. Or it may result in damage to the unit and falling of the load.
13. ALWAYS keep feet, hands and fingers away from casters, load wheels and all moving components. SEVERE INJURY could result.
14. ALWAYS perform maintenance and inspection with lifter unloaded.
15. Do Not use Quick Lifting device when load is on the fork.
16. Do Not use Quick Lifting device with valve open. If valve is kept open, fork will fall down with faster speed when handle is released.
And it may result in rotating of the handle and it is dangerous.
17. When Quick Lifting handle is not used, make certain handle is off the roll pin.
18. Do Not move too fast. Or it may result in the inability of the control of the unit.
19. The lifter is NOT waterproof and is intended to be used in a dry environment and at a moderate temperature range.

- 1 -1. Name of Components

Carriage

Fork
Carriage

HandleFork
HandleCarriageHandle

ForkLowering
Lever

Pumping
Pedal

QuickLifting
HandleLowering
Lever
Quick Lifting
Cable

Pumping
Pedal

Pumping
Pedal

Lift Cylinder

Lift Cylinder

Lowering
Lever

Lift Cylinder
Lowering
Cable

Lowering
Cable

Brake

Brake Pedal

Brake Pedal

2. Pre-Operation Checks
Caution !
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

3. Operation
1. Lifting① Put the fork of the unit into the center of the load
② Fork will rise by pumping the pedal. Lift up thefork up to required height.

Caution !
* 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

2. Lowering① Fork will lower by pulling the lowering lever.
② Release the lever when the fork is lowered down torequired height.

Caution !
* DO NOT lower the fork too fast. Or it may result in the falling of the load.
* DO NOT pull the lever when moving.

-2-3. Moving (Maneuvering)① Hold handle and move unit carefully.

Caution !
* DO NOT move or turn around with load kept at a high position.
* DO NOT pull the Lowering Lever when moving

4. Quick Lifting DeviceOn( applicable only with Quick Lifting Device installed model )Pulley shaft① Check if the Lowering lever is in closed position.

HandleSpring② Press the cut off part of the Qucik Lifting Handle
RollPinin and make sure it is engaged securely to the roll pin.
OffAnd then rotate the handle clockwise

HandleSnap Ring③ When Quick Lifting Device is not used, makecertain handle is off the roll pin (disengaged)

Caution !
* DO NOT use Quick Lifting Device when load is on the fork.
* When Quick Lifting Device is not used, make certain the handle is off the roll pin (disengaged).
If kept engaged, the handle will rotate and can be dangerous when lowering lift.

5. Brake① To Lock Step down the lever of the caster to lock the brake on the wheel
Release② To Release Pull up the brake lever by toe.
Loc

Caution !
* Make certain to set the brake whenever the lift is not moving.

6. Adjusting the Fork Width① Lift up the top end of fork and slide the fork.

4. Circuit Diagram【 Hydraulic Circuit 】
Standard Model

With Quick Lifting Device
Lift
CylinderLift
CylinderPump
CylinderPump
CylinderLowering
Valve

RiseLowering
Valve
RisUP
ReliefDown- 3 -UP
Relief Valve

Down

5. Specifications (Manually Operated Model)
Model

STS15

STS38

ST20WW

150

380

200

Capacity (Kgs)

750

A

Vertical Travel (mm)B

Fork Min. Height (mm)C

Fork Max. Height (mm)D

Overall Height (mm)

1225

E

Overall Width (mm)F

Oerall Length (mm)

H
I

1500

ST30WW

STL38

840

380

1500

1200

1500

1200
90

1288

1588

1590

1290

1590

1251

1966

1593

1893

1969

1666

1966

645

683

1375

645

1375

1192

1306

1499

992

1506

1099

Max. Width of forks (mm)

628

600

558

628

600

558

Min. Width of forks (mm)

125

232

J

Fork Width (mm)60K

From Front Wheel shaft to Fork End (mm)

317

269

＊

Location of Fork at lowered position

BA

27 times

37 times

28

20

Approx. Strokes to Max Height
Lifting per stroke (mm)

641

125

600
110

600

1000

60

110

117

354

154

269

B
53 times

43 times

875

232

550

1000

A
53 times

71 times

28

400

Load Center (mm)B
53 times

43 times

21

28
300

500

300

500

Outside distance between Arms (mm)

502

586

1375

502

1375

544

871

Inside distance between Arms (mm)

360

394

1175

360

1175

352

679

Front Wheel (Polyurethane) OD x W (mm)80 x 32

70 x 7380 x 3270 x 73

Rear Wheel (Polyurethane) OD x W (mm)100 x 32

150 x 42100 x 32

150 x 42

Minimum Turning Radius (mm)

822

923

822

1026

1327

57

135

159

62

Oil Volume (Litter)

0.35

0.47

0.69

0.55

Model No. with Quick Lifting Device--

ST20HWW

STL25H

ST25H

ST30HWW

STL38H

ST38H

ST38HWN

Model

STL50

ST50

ST50WN

STL65

ST65

ST80

ST80WW

ST100

ST100WN

Machine Weight (Kgs.)

500

Capacity (Kgs)

67

193

132

0.69

800

1000

1200

1500

Vertical Travel (mm)Fork Min. Height (mm)C

Fork Max. Height (mm)

1290

1590

1290

1590

D

Overall Height (mm)

1669

1969

1667

1967

E

Overall Width (mm)F

Oerall Length (mm)

1106

H

Max. Width of forks (mm)600

I

Min. Width of forks (mm)232

G

Fork Length (mm)600

J

Fork Width (mm)110K

From Front Wheel shaft to Fork End (mm)69

＊Location of Fork at lowered position

90

683

883

875

21

Load Center (mm)

300

1651

934

1451
688

275
1200

1000

800

125
395
71

Lifting per stroke (mm)

883

726

195

A

B

57

1400

1851

A

Approx. Strokes to Max Height

BA

B

127

102
12600

Outside distance between Arms (mm)

586

871

Inside distance between Arms (mm)

394

679

500

400

700

1400

700

900

500

1200

500

700

70 x 73

Front Wheel (Polyurethane) OD x W (mm)150 x 42

Rear Wheel (Polyurethane) OD x W (mm)200 x 421026

Machine Weight (Kgs.)

151

Oil Volume (Litter)

0.75

Model No. with Quick Lifting Device

1220.55

B

Minimum Turning Radius (mm)

1014

117

0.69

650
1500

1200

1413

A

O

ST38WN

1590

750

L

ST38

300

88

Fork Length (mm)

O

ST25

250

90

G

L

STL25

STL50H

1103
156

166

0.94

1484
247

252

1304

1657

1304

1353

251

276

250

260

1.230.98

ST50H

ST50HWN STL65H* Location of Fork at lowered position
A : On top of Arm,Specifications are subject to change wothout notice

B : At side of Arm- 4 -ST65H

ST80H

ST80HWW ST100H ST100HWN6. Routine Maintenance
1. Check for rust, crack and kink in chain (Monthly)
2. Grease to rail of post for roller, lubricate grease fitting of chain bracket andchain. (every 6 months)
3. Lubricate handle bracket pin and bearings (Every 6 months)
4. Replace hydraulic oil. (Every 12 months)

Required Volume of Hydraulic Oil
STS15

…………

0.35L

STS38, ST38WN…………

0.69LST20WW

…………

0.69L

STL50

…………

0.75L

STL25, STL38

…………

0.55L

ST50, ST50WN

…………

0.94L

ST25, ST30WW

…………

0.69L

STL65

…………

0.98L

STS38

…………

0.47L

ST65, ST80, ST100
…………

1.23L

ST80WN, ST100WN

Recommended Hydraulic Oil
Manufacturer

Hydraulic Oil

Manufacturer

Hydraulic Oil

Esso

Unipower SQ32, XL32,Mobil

Mobil DTE24

Shell

Tellus Oil 32, K32, W-R Oil 32 Caltex

Rando Oil A

7. Trouble Shooting
TroubleForks do not rise without load

CauseShooting

1. Lack of oil

Add the hydraulic oil

2. Air in the pump cylinder

Remove air

1. Seating failure of the Lowering Valve Replace Lowering Valve

2. Lowering Valve is not closed
Natural Lowering

Adjust the cable on theLowering Lever

3. Seating failure of steel ball

Clean or replace steel ball

4. Wear in the O Ring on the Piston or Replace the O Ring
Piston Rod
Forks do not lower by pulling

1. Lowering Valve is not open

Lowering Lever
At Pump Piston
Oil LeakAt Top Nut
At Valve Seat

Adjust the cable on theLowering Lever

1. Defective Dust Seal

Replace Dust Seal

2. Wear in the O RingReplace the O Ring

1. Defective Dust Seal

Replace Dust Seal

2. Wear in the O Ring

Replace the O Ring

1. Wear in the O Ring

Replace the O Ring- 5-8. Warranty
We warrant the products manufactured by Sugiyasu Corporation to be free from defects
in workmanship and material for 1 year after delivery of the products. Our obligation
under this warranty is limited to repair or replacement, at our option, of any parts ormaterial which, within this warranty period, are found to our satisfaction to be defective.
Note : The below are not covered by the warranty.
1 The damage or trouble caused by false operation, negligence in themaintenance and storage required.
2 The damage or trouble caused by any modification that affects the originallydesigned functions.
3 Any consumable parts that need to be replaced.
4 The damage or trouble caused by natural disaster such as fire, earthquake,flood etc.
5 The damage or trouble caused by not using genuine manufacturer parts.
6 The required information such as serial No. etc.would not be provided.
7 The damage or trouble caused by improper installation.
※ Any consumable parts are not covered under this warranty.
(Consumable Parts not to be covered under warranty)※ As this stacker is not weatherproof, trouble caused by corrosion, rust,short circuit from water are not covered under this warranty.

How To ClaimContact your supplier.

9. After Service
・ Something is wrong⇒

Check in accordance with this manual・ Something is still wrong
・ Repair under warrranty perido⇒⇒

・ Repair after warrranty perido⇒

・ Availability of Spare Parts⇒

Contact your supplier for repair
Will be repaired in accordance withwarranty rules
Contact your supplier
The spare parts is available for 8 years

・after discontinuing manufacturing

Contact your supplier for any information regarding to the after service. When contacting
your supplier, provide Model No., Serial No., purchase date etc. and conditions of trouble.

For your recoeds and future contact, fiill out below.
Model No.
Serial No.
Purchase Date
Supplier Name
Address
Tel. No.
Date :
Trouble Date

Date :and conditions Date :Date :- 6-Manufactured bySugiyasu Corporation
3-21, 4 Chome, Hongo Cho, Takahama City, Aichi Pref., Japan 444-1394
Tel. 81-566-53-1126 Fax. 81-566-53-1844 E-mail : sugiyasu@bishamon.co.jp- 7-