Presto Lifts SizzrDok HLD Einrichtungshandbuch

HLD/SLD

SizzrDok™ Loading Docks

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 2017

2 HLD-SLD PRESTO-ECOA OWNER’S MANUAL

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.

HLD-SLD PRESTO-ECOA OWNER’S MANUAL 3

CONTENTS

INTRODUCTION (Getting Started) .................................................................................4

SAFETY ALERT SYMBOLS AND SIGNAL WORDS.......................................................5

SAFETY...........................................................................................................................8

RESPONSIBILITY OF OWNERS AND USERS .............................................................8

INSTALLATION INSTRUCTIONS ..................................................................................9

Preparation ........................................................................................................9

Positioning the Lift .............................................................................................9

Functional Description .....................................................................................10

Scissor Blocking ............................................................................................... 11

Recommended Pit Layout ...............................................................................12

OPERATING INSTRUCTIONS .....................................................................................16

ROUTINE MAINTENANCE ...........................................................................................17

HYDRAULIC SECTION.................................................................................................18

ELECTRICAL SECTION ...............................................................................................20

TROUBLESHOOTING .................................................................................................25

ORDERING REPLACEMENT PARTS ..........................................................................18

WARRANTY ..................................................................................................................26

List of Figures

Figure 1 General Layout ........................................................................................ 11

Figure 2 General Layout (drawing) ........................................................................13

Figure 3 General Specications .............................................................................14

Figure 4 Common Pit Layouts ...............................................................................15

Figure 5 Hydraulic Circuit Standard Scissor Model ...............................................19

Figure 7 Electrical Schematic (standard) ..............................................................21

Figure 11 Optional Service (460V/3PH) ....................................................................22

Figure 12 Optional Connection (230V/1PH) ............................................................22

4 HLD-SLD PRESTO-ECOA OWNER’S MANUAL

S E C T I O N 1

Getting Started

PLEASE READ THE INSTALLATION INSTRUCTIONS CAREFULLY BEFORE INSTALLING,

USING OR SERVICING THE DOCK LIFT.

The safety of all persons installing, using or servicing the Dock Lift is of utmost importance to

Presto-Ecoa. The Dock Lift is capable of supporting heavy loads and is capable of causing SE-

VERE PERSONAL INJURY if used improperly or certain safety precautions are not taken. When

properly used and maintained, the Dock Lift will provide many years of safe, trouble free service.

If you have any questions about any of the instructions in this manual or about the use of this

product, PLEASE contact your DEALER or ECOA.

Inspection

IMMEDIATELY upon receipt of the Dock Lift, remove all packing and strapping material and

visually inspect the unit for damage. Any damage to the loading dock MUST BE NOTED on the

delivery receipt. After the preliminary inspection is conducted, the loading dock should be thor-

oughly inspected for any concealed damage that was not readily apparent during the preliminary

inspection. Any concealed damage found that was not noted on the delivery receipt should be

IMMEDIATELY reported in writing TO THE DELIVERING CARRIER.

HLD-SLD PRESTO-ECOA OWNER’S MANUAL 5

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 appro-

priate 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.

6 HLD-SLD PRESTO-ECOA OWNER’S MANUAL

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.

HLD-SLD PRESTO-ECOA OWNER’S MANUAL 7

WARNING!

1. The SizzrDok loading dock is designed for use with stable, uniformly distributed loads on a

solid level oor. DO NOT concentrate the load at one point on the pallet or platform. ALWAYS uni-

formly distribute the load over the supporting surface. DO NOT use the dock lift for any purpose

other than its intended use.

2. SHEARING HAZARD. ALWAYS keep hands and feet clear of the scissor mechanism and all

moving components. DO NOT put hands or feet under the lift platform when in use. SEVERE

PERSONAL INJURY could result.

3. CRUSHING HAZARD. ALWAYS keep hands and feet clear of all moving components. DO

NOT put feet in the pit or on the base frame when in use. SEVERE PERSONAL INJURY could

result.

4. PINCH POINT HAZARD. ALWAYS keep hands and feet clear of the underside of the lift plat-

form and bridge plate. SEVERE PERSONAL INJURY could result.

5. ALWAYS ensure the handrails and safety chains are in place and secure BEFORE lifting

personnel. ALWAYS use a handrail to maintain balance while raising or lowering the lift. SEVERE

PERSONAL INJURY could result.

6. NEVER leave the loaded dock lift unattended unless the lift platform is in the fully lowered

position.

7. ALL lift servicing must be performed by qualied personnel. Unauthorized modications to

this dock lift may compromise the performance and safety of the system. UNDER NO CIRCUM-

STANCES should you attempt any repair or service that is not covered in the service manual or

authorized by Presto-ECOA.

8. ALWAYS ensure all safety warning labels are in place and legible. If not, remove the dock lift

from service and replace the required labels.

9. ALWAYS securely anchor the base frame to the oor to ensure maximum stability and the

proper operation of the lift

CAUTION!

1. DO NOT continue to operate the hydraulic pump if a squealing noise is heard coming from

the pump. The pressure relief valve is operating. Continued operation of the pump with the relief

valve operating will cause permanent damage to the pump.

2. DO NOT change the relief valve setting. The relief valve is installed to protect the operator and

the lift.

8 HLD-SLD PRESTO-ECOA OWNER’S MANUAL

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, hydrau-

lic, or pneumatic lines, damaged or malfunctioning controls or safety devices, etc. shall be re-

moved 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-ECOA 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 haz-

ard. All items not in conformance with Presto-ECOA’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-ECOA.

HLD-SLD PRESTO-ECOA OWNER’S MANUAL 9

IINSTALLATION INSTRUCTIONS

1. Check pit for conformity to installation drawing provided.

2. Locate the power unit.

Note: It is suggested that power unit be installed prior to the installation of the lift. This

allows the electrical work to be completed ahead of time. Also, it permits ushing of the

hydraulic lines with the power unit prior to connecting the lift.

Note: Hydraulic oil is not supplied with the equipment, unless the optional installation kit

has been purchased.

3. All underground hydraulic lines must be ushed with clean oil.

4. Remove the skid and all steel strapping. The unit comes with four (4)-lifting tabs tted on the

platform. These are to be used for lifting the unit with a crane or a fork truck. At this point DO

NOT remove the two (2) shipping bolts.

5. With the help of a crane or fork truck, lift the dock lift unit and position it in the pit. Note that the

hydraulic cylinder end is opposite to the end of the oil line recess in the pit.

6. Remove the two (2) shipping bolts. Lift the dock lift with the help of a fork truck. Make sure that

the base frame assembly remains on the ground and that the scissor legs open properly. Engage

the maintenance devices as explained in “Scissor Blocking Instructions” section. Check to ensure

that the maintenance safety bars are securely in place.

7. After ushing the hydraulic lines, proceed as follows:

Connect the hydraulic hose coming from the conduit to the Flare bulkhead tting on the base

frame assembly.

Note: The hydraulic hose is not typically supplied by Presto-ECOA. Hose and tubng supplied by

others must conform to manufacturer’s specications.

8. The upper travel limit switch is factory installed to the bracket on the base frame at the scissor

leg clevis hinge. Make sure the limit switch wire runs through the conduit to the control box.

Press the “UP” button until the cylinders are lled with oil and the lift rises.

9. Disengage the maintenance safety bars as explained in “Scissor Blocking Instructions” section.

Completely lower the platform by pressing the ‘’DOWN’’ button until the unit is in fully lowered

position. (Note: Motor runs only when the Lift is rising. Only the Solenoid operates when the Lift is

lowering.)

10. Position the lift so that there are proper clearances around the edges (Refer to Installation

drawing on page 9).

11. Raise the lift completely and engage the maintenance bars. Mark the base frame lag down

holes; shift the position of the lift to allow room for drilling, then drill. When complete, reposition

the lift, shim until level. Install anchors, lagging the lift securely to the oor. (Make sure that base

angles are fully supported along their entire length with shims or concrete grout.) Note: Anchoring

holes may be drilled through existing holes using the base frame as a template.

10 HLD-SLD PRESTO-ECOA OWNER’S MANUAL

INSTALLATION INSTRUCTIONS

(continued)

12. Disengage the maintenance safety bars and lower the lift to check for proper height. The plat-

form should be ush with the curb angles around the pit.

13. Operate the lift through a few cycles holding the ‘’DOWN’’ button on for 10-20 seconds after

the lift is fully lowered. This procedure will bleed any remaining air that may be in the hydraulic

lines.

14. For lifts equipped with an upper travel limit switch, raise the lift again and set the limit switch

(normally closed contact) so that the motor shuts off when the platform reaches the desired height

from the ground.

15. Note to Installer: In order to ensure a clean, trouble free, hydraulic system and to prevent the

suction lter from clogging due to foreign particles in the pipe, the installer must run the lift ‘’UP’’

and “DOWN’’ at least 15 times. Lower the lift and turn off the power supply. Remove the solenoid

valve from the valve block and clean thoroughly, making sure that the dirt does not enter the

valves. This procedure will ensure trouble free operation of the lift.

16. Check the oil level of the reservoir with the lift fully lowered. It should be approximately 1’’

below the top of the tank. Add oil if necessary.

17. Clean up spilled oil and debris from the area.

Note to installer; Spilled oil left in the area may be misinterpreted as a leak and may cause a

needless “call- back’’.

FUNCTIONAL DESCRIPTION

The SizzrDok series of lifts have been primarily designed for loading dock applications. The most

important advantage of the SizzrDok is that it is nitely adjustable in height. The installation of this

lift provides full exibility, allowing you to load and unload at any truck bed elevation within the

lift’s travel range. The general specications for the SizzrDok Series Dock Lifts are as shown in

Figure 3.

SCISSOR BLOCKING INSTRUCTIONS

To Engage the Maintenance Bars; HLD:

1. REMOVE ALL LOADS from the platform and depress the “up” button to raise the dock lift

to its fully raised position.

2. Rotate each maintenance bar until it hits the inside of the roller channel. Ensure both

maintenance bars are properly positioned against the roller channel.

3. Lower the dock lift by pressing the “DOWN” button until the rollers stop against the

maintenance bars and the lift ceases to come down any further.

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