Vestil PST User Manual

VESTIL MANUFACTURING CORPORATION

2999 North Wayne St., Angola, IN 46703 USA

Phone (260) 665-9521 • Fax (260) 665-1339

E-mail: sales@vestil.com • www.vestil.com

Ergonomic Solutions

Contents

Warning and Safety Instructions ..................... 1

Receiving Instructions ...................................... 1

Installation Instructions - EHLT & PST ....................2

Operating Instructions - EHLT ................................. 3

Instructions for Battery Unit - PST ..........................4

Maintenance & Safety Checks - EHLT & PST.......5

Power Units Operation - EHLT & PST .....................6

Motor & Transformer Connection - EHLT & PST . 7

WARNINGS & SAFETY INSTRUCTIONS

Ensure that all employees understand and follow the following instructions.

• Read and understand the owner's manual before using or serving the lift.

• The load must be removed from the platform and the maintenance props installed before any work is performed on the lift.

• For battery-powered units, review the additional warnings included elsewhere in this manual.

• Ensure that all safety and warning labels stay in place and are legible. See the labels page in this manual.

• For non-portable units, the scissor lift frame must be securely anchored to the floor. See the installation instructions.

• Do not use the lift if any damage or unusual noise is observed.

• Always watch the lift and any load on it carefully when it is in operation.

• The platform's load must be centered and evenly distributed on the platform.

• Do not perform any modifications to the lift without the manufacturer's approval. Failure to receive authorization for changes to the equipment could void the warranty.

• Maintenance and repair are to be done only by personnel qualified to perform the required work.

• Do not use brake fluid or jack oils in the hydraulic system. If oil is needed, use an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F, (ISO 32 @ 40°C), or Dexron transmission fluid.

• Use only replacement parts either supplied or approved by the manufacturer.

Revised 09-03

A company dedicated to solving ergonomic and material handling problems since 1955

OWNERS MANUAL

ELECTRIC HYDRAULIC SCISSOR TABLE Series EHLT & PST

Electrical Diagram - EHLT & PST .............................8

Hydraulic Diagram - EHLT & PST .............................9

Electric/Hydraulic Parts List - EHLT & PST ......... 10

Parts List & Drawing - EHLT ............................ 11-12

Parts List & Drawing - PST .................................... 13

Trouble Shooting Guide - EHLT & PST .......... 14-15

Limited Warranty - EHLT & PST............................. 15

Warning Label Identification - EHLT.................... 16

RECEIVING INSTRUCTIONS

Every unit is thoroughly tested and inspected prior to shipment. However, it is possible that the unit may incur damage during transit. If you see damage when unloading, make a note of it on the BILL OF LADING. Remove all packing and strapping material, inspect for damage. IF DAMAGE IS EVIDENT, FILE A CLAIM WITH THE CARRIER IMMEDIATELY! Also, check the unit size, type of power unit, etc., to ensure the unit is correct for the intended application.

MODEL NUMBER AND CAPACITY

The model number, serial number and capacities are inscribed on the nameplate. Please remember to include these numbers in any correspondence with you dealer or the factory.

EHLT PST

ELECTRIC HYDRAULIC SCISSOR TABLES

Series EHLT & PST

E N

E S P A N

F R A N Ç A

INSTALLATION INSTRUCTION - MODEL EHLT

Review this entire page before installing the lift. Consult the factory in the event there are any questions or problems at the time of installation.

The scissor-lift must be removed from the shipping wood and securely anchored to the floor before use!

• The standard model scissor lift table is suitable for use indoors in most industrial locations and many commercial locations, and is typically provided as a turnkey system. Anchoring the unit to the floor and an electrical supply is typically all that is required for installation.

• Modifications or additions to the lift without prior manufacturer's authorization may void the lift's warranty (see ANSI MH29.1, Safety Requirements for Scissor Lifts, section 12.6). The addition of ancillary equipment to the platform may necessitate that its load capacity be reduced.

• The installation must be made so that it complies with all the regulations applicable to the machine and its location. The end-user must verify that the supplied equipment is installed so it will be suited to the environment in which it will be used.

• Installation must be performed by suitably trained personnel with access to the appropriate equipment. The electrical aspects of the installation should be performed by an electrician.

Note: If the unit is to be placed into a pit, you will need to first determine how the required electrical (and possibly hydraulic) connections will be made once the unit is in place.

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For installation you will need the following:

1. A fork truck or hoisting means.

2. Lag bolts, a masonry drill, a masonry bit, a wrench to fit the lag bolt nuts, grout, and steel shims. Consult the building's architect or facility engineer to determine the best size and type of hardware with which to anchor the machine to the floor.

3. A power supply circuit matching the motor voltage and current requirements. Refer to the labels on the control enclosure and to the electrical section in this manual for more information. The end-user is responsible for supplying the branch circuit's required overcurrent and short-circuit protection.

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1. Move the lift into place with straps or forks placed under the table's frame. Use care to avoid damage to the electrical or hydraulic components inside the lift.

2. Temporarily connect the power supply to the pigtail cord supplied with the table, and raise the platform so the table's safety maintenance props can be utilized. Lower the platform so the unit is supported by the props.

3. Anchor the frame to the floor through the 3/4" holes located near the frame corners.

4. Shim and/or grout under the full length of the frame sides.

5. Make permanent connection to the power supply, using an appropriate wiring method.

6. Operate the lift through several full up/down cycles. Verify that the upper travel limit switch (mounted in the frame) and the toe guard switches (around the perimeter of the platform) function property.

7. Check the hydraulic oil level. It should be filled to within 1" to 1-1/2" of the reservoir's fill hole. If oil is needed, use an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F (ISO 32 at 40°C) or a non-synthetic automatic transmission fluid.

8. Clean up any debris or spilled oil, and verify that all of the warning and safety labels are intact.

If the platform must be raised without first having the proper power supply connected, raise the platform at the end of the table through which the power supply cord enters the frame. Use caution to avoid damage to the perimeter pinch (toe) guard! Use lifting chains with hooks fastened on each side, near the end of the platform, or insert a lift truck's forks under the end of the platform. standing on the ends of the shipping 4 x 4's on that end of the lift while the platform is raised.

Take care to not damage the hanging aluminum toe guard.

Hold the frame down by

OPERATION INSTRUCTIONS - EHLT & PST

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Consult ANSI MH29.1, Section 12 for the owner's/user's responsibilities regarding the operation, care, and maintenance of this machine.

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Ensure that all employees involved in the operation of this lift understand and follow the following instructions!

LOADING:

The load rating, in pounds, is shown on the machine dataplate located on the right corner of the hinged end of the platform. It indicates the net capacity of the lift with the load centered and evenly distributed on the platform.

Warning:

- that could cause the roller end of the platform to tip up and dump the load. For applications involving side or end edge loading, consult the factory.

Note:

determining the maximum working load to be placed on the table.

Warning:

exceeding the listed capacity.

The platform's rollers are not captured. Therefore, do not overhang any load at the hinged end of the platform

The addition of any ancillary equipment to the platform by third parties must be taken into account when

Do not exceed the lift's load ratings. Permanent damage to the lift or injury to personnel could result from

OPERATION:

Inspect the perimeter pinch point guards' operation daily.

Warning:

any part of the platform before lowering the unit.

Caution:

The lift is furnished with either a constant-pressure (dead-man style) push button (standard) or twin foot switch (optional) control.

Pressing the "UP" push-button or foot switch will turn on the power unit to raise the platform. The platform will raise only while the control is pressed. Upon releasing the control, the platform will stop and hold its position.

Pressing the "DOWN" push-button or foot switch will energize the lowering valve to allow the platform to descend by gravity (the motor does not run). Again, releasing the control will stop the platform movement, and the unit will hold its position.

Caution:

malfunctioning. Notify your supervisor or maintenance personnel if you notice anything out of the ordinary.

Keep all personnel clear of the machine when it is in operation. Be certain no part of any person or object is under

Always carefully watch the lift and any load on it when it is in operation.

Never use the lift if any damage or unusual noise is observed, if it is in need of repairs, or if it seems to be

E N G

S H

On DC-powered units, attempting to raise the lift when the battery is low will cause the motor relay protection to prevent the motor's operation. Adequate battery voltage is indicated by a green LED on the motor relay. See the next page for more notes regarding operation of battery-powered units.

Ensure that all safety and warning labels stay in place and are legible. Refer to the labels page in this manual.

ORDERING REPLACEMENT OR EXTRA PARTS:

Our company takes pride in using the finest available parts for our equipment. We are not responsible for equipment failure resulting from the use of unapproved replacement parts. To order replacement or extra parts for your equipment contact Customer Service at the factory. In any correspondence with the factory please include the Serial Number which is inscribed on the nameplate of the piece of equipment. Use only the part numbers provided in this Owner's Manual. When ordering parts for AC power units please indicate the motor phase and voltage that the equipment is operating on.

ADDITIONAL INSTRUCTIONS FOR BATTERY-POWERED UNITS - PST

• Working with or near lead acid batteries is dangerous. Batteries contain sulfuric acid and produce explosive gases. A battery explosion could result in loss of eyesight or serious burns.

• Do not smoke or allow a spark or flame near batteries. Charge batteries in locations which are clean, dry, and wellventilated. Do not lay tools or anything metallic on top of any battery. All repairs to a battery must be made by experienced and qualified personnel.

• When working with batteries, remove personal items such as rings, bracelets, necklaces, and watches. Batteries can produce enough energy to weld jewelry to metal, causing a severe burn.

• Always have fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.

• Operating the battery with a low battery voltage can cause premature motor contact failure.

• Do not expose the lift or charger to rain or adverse conditions.

• Replace defective cords or wires immediately.

• Check the battery's water level frequently.

Battery Charger Operating Instructions

Never operate the charger with either of the cables coiled. Operating the unit with the cord wrapped around itself could

cause the cord to overheat, melt, and cause a short-circuit or a fire.

Plug the charger into a standard 115V receptacle. If an extension cord must be used, keep it as short as possible. Connection: the ribbed wire of the charger's output cord must be connected to the battery's negative (-) terminal. The

non-ribbed wire must be connected to the battery's positive (+) terminal. Reversing this polarity will blow the charger's output fuse.

When properly connected, the charger will indicate the status of the charger output.

Flashing green, solid red LED - the charger is not seeing a good connection to the battery of the charger's

output fuse has blown.

Solid yellow and red LED's - the charger is providing charging current to the battery. Solid green and red LED's - the charger is maintaining a fully-charged battery.

CAUTION

cords, receptacles and other equipment.

Troubleshooting:

If unit does not operate, check all of the wiring connections to make sure they're both mechanically and electrically

sound - specifically at the battery, the motor, and at any location a wire is connected to the chassis. Also make sure the quick-connection plug on the end of the pendant control cord is plugged in correctly.

A fully-charged lead acid battery in good condition at room temperature should read 12.65 volts. At 11.9 volts it is

considered to be fully discharged and in need of charging. When check battery voltage, wait at least 1/2 hour after the charger has been turned off before checking the batter's voltage.

If the batteries don't seem to be taking a charge, check the charger's 115V supply circuit, the charger's 10A output

fuse, and the charger's output with a voltmeter. If all check okay, confirm the battery's state of charge using a hydrometer or a voltmeter.

: Remember to unplug the charger before moving the equipment. Failure to do so could cause damage to

ROUTINE MAINTENANCE & SAFETY CHECKS - EHLT & PST

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Warning: Care should be taken to identify all potential hazards and comply with applicable safety procedures before beginning work.

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Warning: Raise the platform and install the maintenance props before beginning any inspections or work on the unit. Only qualified individuals trained to understand mechanical devices and their associated electrical and hydraulic circuits should

attempt troubleshooting and repair of this equipment.

(A) BEFORE EACH USE INSPECT FOR THE FOLLOWING:

1.) Frayed wires

2.) Oil leaks

3.) Pinched or chafed hoses

4.) Damage or structural deformation to the structural members, the cylinder brackets, etc.

5.) Unusual noise or binding, or evidence thereof.

6.) Proper functioning of all limit switches, including those on the perimeter pinch point guard (if applicable).

(B) INSPECT MONTHLY FOR:

1.) The oil level. Oil should be 1-1/2" to 2" below the reservoir's fill hole with the lift in the fully raised position.

2.) Worn or damaged hydraulic hoses and electrical wires.

3.) Pivot point wear.

4.) Rollers' looseness and wear.

5.) Integrity of the retaining rings on all rollers and at all pivot points.

6.) The integrity of the frame anchor bolts, and for cracks in the concrete around them. (Non-portable table units only.)

7.) Looseness, wear, or damage to the casters' bearings, mounting hardware, or surface material. (Portable units only.)

8.) Proper functioning of any hand- or foot-operated mechanisms.

9.) Proper water level in the battery.

10.) Unusual noises or movement during operation.

11.) All the information, safety, and warning labels being in place and in good condition.

12.) The need to clean off dirt and debris.

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The oil should be changed if the oil darkens, becomes gritty, or turns a milky color (indicating the presence of water). Replace with an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F, (ISO 32 at 40°C). Ex: AW 32 or HO 150 hydraulic oil, or a non-synthetic transmission fluid. You may use a synthetic transmission fluid if you flush the system with the synthetic fluid before filling the reservoir.

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