Owner's manual

ManualsBrandsVestil ManualsEquipmentAHLT

VESTIL MANUFACTURING CORP.

2999 North Wayne St., Angola, IN 46703

Ph: 260-665-9521 Fax: 260-665-1339

Website: www.vestil.com

SAFETY PRECAUTIONS

Read owner's manual completely before operating unit! The

model number and capacity of the table is incribed on its

(green or red) nameplate. Please remember to include these

numbers with any correspondence with your dealer or factory.

Have only qualified personnel perform maintenance and repairs

on this unit.

• The lifting capacity of your unit is based on a uniformly

centered load. This capacity should never be exceeded,

as permanent damage and/or personnel injury could result.

Consult the factory for side or end loading capacities.

• Never lower the unit onto the safety maintenance prop

while the table is loaded. Never go under the platform

unless the maintenance prop is in position.

• Use AW-32 hydraulic oil (or equivalent), or Dexron II

transmission fluid in the tables reservoir. Do not use brake

fluids or jack oils.

• Check the setting and conditions of all safety switches and

stickers frequently.

• Never operate the table if it or any of its components are

in need of repair. Notify the appropriate personnel in the

event of any unusual noises, movements, or noticeable

damage to the table's understructure of controls, or if the

table doesn't respond normally to its controls.

OPERATION

The table is furnished with a remote "deadman" style

control. This type of operation, also called "push to run", allows

the operator to move the unit as much or as little as necessary.

Each press of the air control valves opens a seperate pilot-

operated valve to initaiate the desired movement, and

movement is creased when the valve is released.

The "RAISE" control opens the motor air supply valve

to run the power unit and thereby pump hydraulic fluid to the

cylinder(s). When the table raises to the previously determined

AIR HYDRAULIC SCISSOR TABLE

MODEL AHLT

OWNER'S

MANUAL

Revised 03-00

A company dedicated to solving ergonomic and material

handling problems since 1955

AIR HYDRAULIC SCISSOR TABLE

MODEL AHLT

Ergonomic Solutions

Contents

Safety Precautions .......................................... 1

Operation .................................................. 1 & 4

Installation Instructions.................................... 2

Hydaulic Circuit ............................................... 3

Loading Instructions ........................................ 4

Pneumatic/Hydraulic Diagram ......................... 5

Exploded Parts Drawing ............................... 6

Parts List....................................................... 7

Troubleshooting Guide ........................... 8 & 9

Maintenance & Safety ................................ 10

Warning Label Identification ....................... 11

Warranty ..................................................... 12

upper travel upper travel setpoint, and air valve is closed

which in turn disables the pilot-operated motor air supply valve

and causes the unit to stop.

The "LOWER" control opens a hydraulic "dump"

valve to allow that same oil in the cylinder(s) to return back to

the reservoir. When the unit has completely lowered it will

simply stop lowering.

• The power unit's air motor requires a minimum air supply

of 70 CFM at 70 PSI.

• A good quality air filter/lubricator is required for proper,

long-term operation of the table's power unit. Operation

of this machine without one will void the warranty!

• Refer to the hydraulic troubleshooting guide if problems

arise with the table's operation.

• Regular inspections should be performed on all

pneumatic and hydraulic hoses, as will as a visual

inspection of all structural members, hinges and

components. Check for cracking or scraped paint, oil

leaks, noticeable wear at any pivoting points, loose or

missing fastners and components, etc.

Summary of content (12 pages)

PAGE 1
VESTIL MANUFACTURING CORP. 2999 North Wayne St., Angola, IN 46703 Ph: 260-665-9521 Fax: 260-665-1339 Website: www.vestil.com Revised 03-00 A company dedicated to solving ergonomic and material handling problems since 1955. Ergonomic Solutions OWNER'S MANUAL AIR HYDRAULIC SCISSOR TABLE MODEL AHLT Contents Safety Precautions .......................................... 1 Operation .................................................. 1 & 4 Installation Instructions ....................................
PAGE 2
INSTALLATION INSTRUCTIONS Review Complete Owner's Manual Before Commencing Installation. For installation you will need the following: 1.) A fork truck or hoisting means. 2.) Lag bolts, masonry drill, masonry bit, wrench for lag bolt, grout, and steel shims. Move the lift with straps or forks under frame. Read all the warning labels on the lift and be sure all of the labels are on the lift. Check local codes pertaining to your application.
PAGE 3
HYDRAULIC CIRCUIT When the operator wants to raise the unit, he/she presses the "RAISE" button. This opens the air motor supply valve which turns the hydraulic pump. Oil from the reservoir is drawn in through the suction filter and into the pump. The pump delivers the pressurized oil through the check valve before entering the cylinders. The function of the check valve is to allow the oil to flow in one direction, i.e. towards the cylinders.
PAGE 4
LOADING INSTRUCTIONS The load capacity rating as inscribed on the nameplate of your unit designates the net capacity, assuming the load is centered. This capacity must never be exceeded, as permanent damage or injury may result. SAFETY INSTRUCTIONS TO THE OPERATOR 1.) Always load the unit properly. 2.) Never use the Lift if it is in need of repairs or in the case of malfunction. 3.) OPERATING INSTRUCTIONS This unit is furnished with constant pressure ("deadman" type) push button controls.
PAGE 5
PNEUMATIC/HYDRAULIC DIAGRAM HYDRAULIIC LINE AIR SUPPLY LINE AIR PILOT LINE NOTE: Operation of this machine without a filter/lubricator will void the warranty! 5
PAGE 6
AIR HYDRAULIC SCISSOR TABLE MODEL AHLT 6
PAGE 7
AIR HYDRAULIC SCISSOR TABLE MODEL AHLT ITEM NUMBER DESCRIPTION PART NUMBER 1 CYLINDER MOUNT SPRING PIN ST-SPRGPIN 1 2 CYLINDER MOUNT PIVOT PIN ST-CYLPIN 1 3 CYLINDER MOUNT BEARING ST-CYLBRG 2 4 HYDRAULIC CYLINDER ST-CYL 1 CYLINDER SEAL KIT (NOT PICTURED) ST-CYLSLKT 1 5 ROLLER PIN ST-RLPIN 4 6 ROLLER ST-RLR 4 7 ROLLER BEARING ST-RLRBRG 4 8 ROLLER WASHER ST-RLRWSHR 4 9 ROLLER SNAP RING ST-RLRNRG 4 10 HINGE PIN ST-HNGPIN 4 11 HINGE PIN BEARING ST-HNGBRG 4 12 P
PAGE 8
HYDRAULIC EQUIPMENT Trouble Shooting Quick Reference Guide (For further information contact the factory) ****BEFORE PREFORMING ANY MAINTENANCE WORK ALWAYS INSTALL MAINTENANCE SAFETY BLOCKS**** Observation 1.) Table does not raise but pump is running Possible Cause Remedy a. Hose or hydraulic line is leaking. c. Correct as necessary. b. Fluid level in reservoir is low. d. Add fluid. Refer to Owner's Manual for proper fluid levels. c. Load exceeds capacity requirements.
PAGE 9
Observation Possible Cause Remedy 6.) Table lowers too quickly. a. Leaking hoses and/or cracked fittings. a. Correct as necessary. b. Check valve is stuck open. (The combination of a stuck Check Valve and open Soleniod Valve will cause excessive speeds.) b. Remove and clean Check Valve. (Refer to Hydraulic Section of Owner's Manual ). c. Foreign material stuck in Flow Control Valve. (In this case, table lowers initially at a normal rate then speeds up as the platform descends.) c.
PAGE 10
Routine Maintenance & Safety Raise the table and install the maintenance safety prop before beginning any inspection or work on the unit. (A) Before Each Use Check For The Following: 1.) 2.) 3.) 4.) 5.) Frayed wires Oil leaks Pinched or chafed hoses Structural deformation of arms, frame, and platform Unusual noise or binding Do not use if there are any of the above! (B) Monthly Inspections 1.) Check oil level.
PAGE 11
WARNING LABEL IDENTIFICATION MAKE SURE ALL WARNING LABELS ARE IN PLACE! 6 1 ! WARNING 5 ! AVISO ! AVERTISSEMENT SECURE FRAME ASEGURE EL TO FLOOR BASTIDOR AL PISO FIXER SOLIDEMENT LE CADRE AU PLANCHER 204 1 1 2 ON HYDRAULIC TANK (NOT SHOWN) 5 ISO AW-32 HYDRAULIC OIL OR EQUIVALENT SERIAL NUMBER ACEITE HIDRÁULICO O EQUIVALENTE HYDRAULIQUE OU ÉQUIVALENT 206 FOUND ON HANDLE 3 *Product safety signs or labels should be periodically inspected and cleaned by the product users as necessary to maintain
PAGE 12
LIMITED WARRANTY ONE YEAR LIMITED WARRANTY. The manufacturer warrants for the original purchaser against defects in materials and workmanship under normal use one year after date of purchase. (Not to exceed 15 months after date of manufacture.) Airbag is warrantied for 1 year or half a million cycles, whichever comes first.