Presto ECOA AL Series Einrichtungshandbuch

Presto AX, AXR, AXS,

AXT & AT Series

ECOA AL Series

Scissor Lifts

Installation, Operation

and Service Manual

Model Number ___________________

Serial # _________________________

Date placed in service _____________

IMPORTANT: READ CAREFULLY

BEFORE INSTALLING OR OPERATING LIFT

Part orders are subject to a $50 minimum charge.

March 2020

Page 2 Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series

NOTICE

The air actuated tilter is not shown in this manual. But, the air

bag(s) ttings, connections and controls are very similar to the

components used on air actuated lifts. For additional detail

or related questions please contact the Presto-ECOA Service

Department or Parts Department at 800-343-9322.

This manual was current at the time of printing. To obtain the latest, most updated version,

please contact Presto-ECOA Lifts Customer Service Department or go to our website:

www.PrestoLifts.com where you will nd a complete list of current owner’s manuals to print.

This label (part # 10095524)

is required by California law.

For more information visit

www.65Warnings.ca.gov.

This label (part # 10095524)

is required by California law.

For more information visit

www.P65Warnings.ca.gov.

Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series Page 3

CONTENTS

SECTION 1: Introduction ............................................................................................................. 4

Responsibility of Owners and Users ....................................................................................... 5

SECTION 2: Safety ..................................................................................................................... 6

SECTION 3: Installation ............................................................................................................... 8

A. Inspection .......................................................................................................................... 8

B. Installing ............................................................................................................................. 8

C. Pneumatics......................................................................................................................... 9

D. Testing the Lift with No Load .............................................................................................. 9

SECTION 4: Operation .............................................................................................................. 10

A. Method of Operation........................................................................................................ 10

B. Operation Procedures ...................................................................................................... 10

SECTION 5: Maintenance ...........................................................................................................11

A. Safety Chocks ...................................................................................................................11

B. Routine Inspection and Maintenance .............................................................................. 12

C. Troubleshooting Maintenance ........................................................................................ 12

D. Removal and Installation of Air Stroke Actuator ............................................................... 12

E. Removal and Installation of Hand/Foot Control................................................................ 13

SECTION 6: Turntable ............................................................................................................... 14

SECTION 7: Pneumatic Positioning Lock .................................................................................. 14

RESTOCKING POLICY............................................................................................................... 22

ORDERING REPLACEMENT PARTS......................................................................................... 23

WARRANTY ................................................................................................................................ 24

LIST OF FIGURES:

Figure 1. Lagging down lift ........................................................................................................... 9

Figure 2. Maintenance Chocks................................................................................................... 10

Figure 3. Pneumatic Connections ...............................................................................................11

Figure 4. Pneumatic Connections with Lock .............................................................................. 14

Figure 5. Pneumatic Components.............................................................................................. 15

Figure 6. Pneumatic Components with Turntable....................................................................... 16

Figure 8. Mechanical Components............................................................................................. 18

Figure 9. Pneumatic Schematic, AX / AT.................................................................................... 19

Figure 10. Labels and Locations ................................................................................................. 20

Figure 11. General Description AL Series.................................................................................... 21

Page 4 Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series

S E C T I O N 1

INTRODUCTION

This manual attempts to provide all of the information necessary for the safe and proper installation,

operation and maintenance of AX, AXR, AXS, AXT, AT and ECOA AL Scissors Lifts.

It is important that this manual be read by all personnel involved with the installation, maintenance or

operation of the scissor lift. If the manual does not address an application, call your distributor or Presto-

ECOA Lifts for assistance. Additional manuals are available upon request at www.PrestoLifts.com.

The scissor lift has a nameplate that provides the load capacity rating, serial number and model

identication. Please refer to these numbers when ordering parts or requesting further information.

The AX, AXR, AXS, AXT, AT and ECOAAL Scissors Lifts are designed for lifting, lowering and positioning

a wide variety of loads. WHERE UNIQUE SITUATIONS ARISE, THAT ARE NOT COVERED IN THIS

MANUAL, CALL YOUR DISTRIBUTOR OR Presto-ECOA LIFTS FOR INSTRUCTIONS.

The AX, AXR, AXS, AXT, AT and ECOA AL Scissors Lifts are designed for in-plant/non-hazardous

location use only.

Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series Page 5

Responsibility of Owners and Users

Inspection and Maintenance

The device shall be inspected and maintained in proper working order in accordance with Presto-

ECOA owner’s manual.

Removal from Service

Any device not in safe operating condition such as, but not limited to, excessive leakage, missing

rollers, pins, or fasteners, any bent or cracked structural members, cut or frayed electric, hydraulic,

or pneumatic lines, damaged or malfunctioning controls or safety devices, etc. shall be removed

from service until it is repaired to the original manufacturer’s standards.

Repairs

All repairs shall be made by qualied personnel in conformance with Presto's instructions.

Operators

Only trained personnel and authorized personnel shall be permitted to operate these lifts.

Before Operation

Before using the device, the operator shall have:

• Read and/or had explained, and understood, the manufacturer’s operating instructions and

safety rules.

• Inspected the device for proper operation and condition. Any suspect item shall be carefully

examined and a determination made by a qualied person as to whether it constitutes a hazard.

All items not in conformance with Presto’s specication shall be corrected before further use

of these lifts.

During Operation

The device shall only be used in accordance with this owner’s manual.

• Do not overload.

• Ensure that all safety devices are operational and in place.

Modications or Alterations

Modications or alterations to any Presto-ECOA industrial positioning equipment shall be made only

with written permission from Presto.

Page 6 Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series

SAFETY ALERT SYMBOLS AND SIGNAL WORDS

The safety of all persons operating, maintaining, repairing, or in the vicinity of this equipment is of paramount concern. This is

a powerful machine with moving parts, and is capable of causing personal injury if proper precautions are not taken. Therefore,

throughout this manual, certain hazards have been identied which may occur in the use of the machine, and there are appropriate

instructions or precautions which should be taken to avoid these hazards. In some cases, there are consequences which

may occur if instructions or precautions are not followed. Below are the symbols and signal words along with their denitions

referenced from ANSI Z535.4 - Product Safety Signs and Labels.

4.11 Safety Alert Symbols: A symbol that indicates a hazard. It is composed of an equilateral triangle surrounding

an exclamation mark. The safety alert symbol is only used on hazard alerting signs. It is not used on safety notice and safety

instructions signs.

4.14 Signal Words: The words used in the signal word panel. The signal words for hazard alerting signs are “DANGER,”

“WARNING,” and “CAUTION.” Safety notice signs use the signal word “NOTICE.” Safety instruction signs use signal words that

are specic to the situation.

DANGER indicates a hazardous situation which, if not avoided, will result

in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION indicates a hazardous situation which, if not avoided, could

result in minor or moderate injury.

NOTICE is used to address practices not related to physical injury.

SAFETY INSTRUCTIONS (or equivalent) signs indicate specic safety-

related instructions or procedures.

NOTE: DANGER, WARNING or CAUTION should not be considered for property damage accidents unless personal injury risk

appropriate to these levels is involved.

A): for use with DANGER signal word; (safety white triangle, safety red exclamation mark, safety red background)

B): for use with WARNING signal word; (safety black triangle, safety orange exclamation mark)

C): for use with CAUTION signal word; (safety black triangle, safety yellow exclamation mark)

D) and E): for use with DANGER, WARNING, or CAUTION signal word; (D: is a safety yellow triangle with a

black border and safety black exclamation mark; E: is a safety yellow triangle with a safety black exclamation mark and a

safety yellow border around a safety black band)

NOTE: D and E are provided to allow for consistency with certain ISO standards such as ISO 3864-1 and ISO 3864-2.

Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series Page 7

WARNING!

• Do not perform any repair work on a lift with a load on the platform or with the table in a raised position.

• All personnel must stand clear of the lift when the lift is in motion.

• Do not put hands or feet under lift table.

• Do not perform any repair or maintenance work with the lift in an open position without securing it

rst with proper maintenance devices.

• Do not stand, sit or climb on the lift at any time.

• Do not use the lift on soft, uneven or unstable surfaces.

• Do not exceed the load capacity rating on the data plate.

• Do not place a load on a moving lift.

• Do not exceed load capacity.

• Place a load in the center of the lift and be sure that the load is secured properly.

S E C T I O N 2

SAFETY

The safety of all persons installing, using, servicing, or working near the unit is of paramount concern to

Presto-ECOA Lifts. The lift is a powerful machine with moving parts, and is capable of causing personal

injury if proper precautions are not taken. Therefore, throughout this manual, Presto-ECOA Lifts have

identied certain hazards, which may occur in the use of the unit, and provided appropriate instructions

or precautions that should be taken to avoid these hazards. In some cases, Presto-ECOA Lifts has also

pointed out the consequences that may occur if Presto-ECOA Lifts instructions or precautions are not

followed. Presto-ECOA Lifts use the following nationally recognized system for identifying the severity

of the hazards associated with its products:

DANGER – Immediate hazard that will result in severe personal injury or death.

WARNING – Hazard or unsafe practice, that could result in severe personal injury or death.

CAUTION – Hazard or unsafe practice, that could result in minor personal injury or property

damage.

In the interest of safety, please read the entire manual carefully. You must understand the material

in this manual before you install, use, or service the unit. If you have any question about any of

the instructions in this manual, please contact Presto-ECOA Lifts at 1-800-343-9322.

Page 8 Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series

S E C T I O N 3

INSTALLATION

A. INSPECTION

Upon receipt of the AX/AXR/AXS/AXT/AT and AL Scissor Lift, inspect the equipment completely to

determine if there is any damage that occurred during shipment and that the lift is complete. Do not

use the lift if there appears to be any damage. Check the following with the lift in the collapsed position:

1. Check for signs of damage, especially to the Airstroke Actuator™ and pneumatic components.

2. Check all connections and nuts/bolts for tightness.

3. Check base frames for atness and for bent or damaged metal parts.

CAUTION!

Do not operate the lift before performing the installation procedures specied in section

B. Severe damage to the lift may occur.

B. INSTALLING

Floor Installation

a) Make sure that the oor in the installation area is at, stable, relatively smooth and free

from dirt, obstacles or surface defects.

b) Place the lift in the exact operating position.

CAUTION!

When moving the lift never attempt to pick it up by the platform. The lift should be picked

up only by the base frame only. The use of a spreader strap/sling is suggested. If the

lift has lifting eyebolts, attach a chain spreader and raise the lift from a center position.

Be sure that the eye bolts are secured in place with locking nuts prior to lifting.

c) Make sure that the complete base of the lift is in contact with the oor. In order to provide com-

plete contact with the oor, the base may be shimmed or grouted.

CAUTION!

Do not spot shim. The complete base must be in contact with the oor or shims.

NOTICE

Machine base lag anchors need to be sized for a minimum of 5000# pull-

out force for each lag.

d) The lift frame must be anchored to the oor using four 3/4" diameter bolts, washers and nuts.

e) Locate and lag down hand control stand or foot control so as to provide easy access. Do not

obstruct the operator's work area. Make pneumatic connections according to the information con-

tained in Section 3C.

CAUTION!

Not lagging the lift base will result in structural damage to the lift.

Pit Mounted Installation

a) Build pit to standard pit dimension as outlined in gure 2, paying careful attention

to raceway, clearance and height requirements.

b) The remaining steps are the same as required for oor installation. See section 3B.

WARNING!

Do not install lifts in pits unless they have an approved bevel edge top and fully exhausting

pneumatic circuit.

Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series Page 9

WARNING!

The lift is equipped with a tamperproof pressure regulator. The regulator has been factory

preset and no attempt should be made to alter the setting. Resetting of the regulator or

replacement with a component not supplied by Presto-ECOA Lifts will void warranty and

could result in serious bodily injury.

D. TESTING THE LIFT WITH NO LOAD

1. Before testing the lift, clear the area of any loose material. Be sure the lift has no obstruction

above it or on any side. Using the controls provided, briey oper- ate the lift (5-10 seconds). If the lift

begins to rise and functions properly, continue to the full upright position.

CAUTION!

If the lift does not rise immediately, or there is any operational problem, stop it immediately.

Refer to the troubleshooting section and correct the problem before continuing.

2. After raising the lift completely, lower the lift completely. It should lower slowly and smoothly. If satised

with the lift's operation, raise and lower the lift and stop at different levels in order to familiarize yourself

with the lift’s operation.

C. PNEUMATICS

AX/AXR/AXS/AT and AL Scissor Lifts are designed

for normal factory environments. Consult the

distributor for unusual applications. If your lift is

equipped with a turntable positioning lock, refer to

Section 6B.

CAUTION!

All pneumatic connections should

be performed by qualied authorized

service personnel.

1. The lift requires a minimum of 80 PSI, 15 CFM,

and clean dry air to function correctly.

2. Be certain that supply line is turned off and

residual air has been purged from the line.

3. The lift is shipped with the control line attached

to the control valve (B) and detached from the lift

base. Route the control line safely to the base and

make the connection (C).

4. Connect the supply line to the open port of the

control valve (A).

5. Open the air supply and check the entire circuit

for leaks. Secure as needed. See Fig. 3.

Figure 1:

Lagging down lift

Page 10 Presto-ECOA Lifts AX, AXR, AXS & AT Series and AL Series

S E C T I O N 4

OPERATION

A. METHOD OF OPERATION

The control valve controls the ow of air to the Air

Stroke Actuator™. As the actuator is pressurized,

the scissor legs are forced apart causing the

tabletop to rise. As air is released from the bag,

the legs collapse and the top is lowered. A factory

preset ow control ensures a smooth descent at a

controlled speed.

CAUTION!

Do not maintain the control valve in the

open position if the lift does not move

or it has reached its up or down limits.

Damage to the pneumatic system may

result.

Figure 2: Maintenance chocks

B. OPERATION PROCEDURES

In order to operate the lift, follow these operating procedures:

WARNING!

a) Load the lift only in the collapsed position.

b) Do not stand, sit or climb onto the lift.

c) If the lift fails to move or exhibits strange movement or sound, stop immediately. Do not

operate the lift until it has been checked and repaired.

d) Do not load or unload a moving lift.

e) Obey all warning labels.

1. Read and understand all the instructions before operating. If the lift has modications or

accessories, read and understand their functions.

2. Load the lift correctly. Refer to the attached nameplate for load capacity information.

a) Load the lift only in the fully lowered position.

b) Do not load or unload the lift while it is moving.

c) Do not exceed the maximum rated load (note that load capacity is reduced due to side or end

loading).

d) Place load in the center of table.

e) If the load is unstable or may become unstable, fasten it into position.

3. Operate the lift.

a) To raise the lift, activate the hand control valve to the “up” position. Hold the valve open until the lift

reaches the desired position or the lift reaches its full extension. The valve is spring-loaded and will

return to center (closed) when the lever is released.

b) To lower the lift, activate the hand control valve to the down position. Hold the valve open until the

lift descends to the desired height or the lift reaches its fully lowered position. Move the valve briey to

the up position to stop downward movement.

4. Wait until the lift has come to a complete stop before unloading the lift.

5. Stand clear of the lift when operating in order to avoid injury.

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