air hydraulic jacks - arihetra service manuals/floorjacks...edition 11/03 air hydraulic jacks air...

Edition 11/03

AIR HYDRAULIC JACKS

air hydraulic jackmodel WS-02300

USE AND MAINTENANCE MANUAL

7.020.0385

AUTOMOTIVE RESOURCES, INC.12775 Randolph Ridge Lane

Manassas - VA 20136(703) 359-6265

FAX (703) 359-6405www.ari-hetra.com

E-mail: [email protected]

Serial Number

CH

AP

TE

R

CONTENTS

0

Edition 11/03

air hydraulic jack model WS-02300

Table of contents 0

0 Table of contentsContents

1 Introduction1.1 Presentation1.2 Signs and warnings1.3 Manufacturer and machine identification

2 General characteristics2.1 Description of the machine and intended use2.2 Main parts2.3 Installation requirements2.4 Technical data

3 Safety rules3.1 Responsibility3.2 General safety regulations3.3 Specific safety regulations3.4 Warning and danger labels3.5 Safety devices and components3.6 Operator position3.7 Noise level

4 Shipment and transport4.1 Testing4.2 Packaging and transport

5 Controls5.1 List and description of controls

6 Installation6.1 Start-up

7 Using the machine7.1 Checks and inspections7.2 Use7.3 Stopping

0page 1

page 1page 1page 2

page 1page 1page 2page 4

page 1page 1page 2page 7page 8page 9page 10

page 1page 1

page 1

page 1

page 1page 1page 3

page 1

1

2

3

4

5

6

7

Edition 11/03


Table of contents 0

8 Maintenance8.1 Foreword8.2 Before each use of the machine8.3 Daily maintenance8.4 Weekly maintenance8.5 Monthly maintenance8.6 Annual maintenance8.7 Table of recommended lubricants8.8 Putting into storage

9 Scrapping9.1 Scrapping

10 Troubleshooting10.1 Troubleshooting

11 Warranty11.1 Warranty

12 Spare parts12.1 Ordering instructions12.2 Index of tables12.3 Frame assembly WS-0230012.4 Pump and plate assembly WS-0230012.5 Cylinder assembly WS-02300

8page 1page 1page 2page 2page 3page 3page 4page 4

page 1

page 1

page 1

page 1page 1page 2page 4page 6

9

10

11

page 2

12

CH

AP

TE

R

INTRODUCTION

1

Edition 11/03


Introduction 1

1.1 Presentation

Dear Customer,This instruction manual constitutes an essential part of the product itself and is intendedto inform the operator about the fundamental rules and criteria to be adopted whenusing and maintaining the jack.The jack’s operator must read this manual before putting it into operation.Always keep the use and maintenance manual within reach; if you are unable to under-stand any parts of this manual, consult the manufacturer.This is an essential condition for safe operation.Correct use and proper maintenance of the jack are also indispensable in maintaining itsperformance level and commercial value over time.

The regulations given in this instruction manual are not binding; ARI-HETRA thereforereserves the right to make any modifications to components or accessories it considersappropriate for improvement or due to any construction or commercial requirements, atany time.

ARI-HETRA accepts responsibility for the information given in the original version ofthe instruction manual in English; if typing or other errors are detected in it, the correctionswill be included in new versions.

This publication may not be reproduced even in part without the manufacturer’sauthorization.

1.2 Signs and warnings

A number of special symbols are used in this manual to draw the reader’s attention topossible dangers:

page 1

CAUTIONthis warning symbol identifies pointsdescribing conditions and actions whichmay put the operator in danger.

Edition 11/03


this warning symbol identifies the pointsdescribing conditions and actions whichlead to damage to the machine.

Introduction 1

page 2

CAUTION

1.3 Manufacturer and machine identification

Each jack carries a name plate with the following information:

A- ARI-Hetra’s addressB - machine modelC- machine serial numberD- year of constructionE - maximum operating loadF - operating air pressure

Correct specification of the jack’s model, serial number and year of construction willenable the ARI-HETRA after-sales service to respond quickly and accurately.

The data stated on the nameplate must never be altered for any reason.

A

F

E

C

DB

CH

AP

TE

R

GENERAL CHARACTERISTICS

2

Edition 11/03


General characteristics 2

2.1 Description of the machine and intended use

The WS-02300 air hydraulic jack is suitable for partially lifting a vehicle to allow removal/replacement of just one wheel.The jack described here is an air hydraulic machine operated by a cylinder with morethan one telescopic step.The handlebar carries the controls used to operate the jack, which is equipped with:- a safety device to prevent the load from descending if the compressed air supply fails;- a hydraulic relief valve to avoid overloads on the hydraulic lifting cylinder;- a wheeled base for easier handling;- a large supporting base for the lifting cylinder and a solid structure.The technical and dimensional characteristics of this jack are ARI-HETRA’s solution formeeting the most demanding lifting requirements generated by the continuous evolutionof vehicle design, in the highest safety conditions for the operator.

The air hydraulic jack described here is:- model : WS-02300 - having 2 step lifting cylinder.

2.2 Main parts

To aid understanding of this manual, the following is a list of the main parts which makeup the machine (see fig. 2.1):

1 - wheeled base2 - fixed casings3 - handle4 - controls zone5 - wheels6 - cylinder support base7 - lifting cylinder8 - oil tank9 - pump unit

page 1

Edition 11/03



fig.2.1

page 2

9

8

2.3 Installation requirements

ARI-HETRA urges users to install a filter-regulator unit complete with pressure gaugeand air lubricator upstream of the air hydraulic jack.An air treatment and pressure regulation unit on the main compressed air system lineallows optimization of the jack’s performance.

The compressed air supply line must also be fitted with a suitable stop valve to allow thesystem to be cut off from the workshop circuit in case of maintenance or other work onthe machine.

The compressed air supply line filter-regulator unit must comprise at least the following(fig. 2.2):

- air filter A- pressure regulator B- pressure gauge C- oil mist lubricator D- lubrication regulator screw E- condensation drain screw F

4

2

3

2 7

61

5

Edition 11/03



page 3

DA

C

F

B

E

fig.2.2

2.4 Technical data

General technical data

- operating temperature min. 14°F max. 122°F- operating air pressure min. 143 p.s.i. max. 157 p.s.i.- air consumption 110 gallons/min.- air connection female 1/4" NPT

Technical data required for the pneumatic system connection components

- air supply line in oil-resistant rubberinside diameter D = 0.31"resistance to pressure 172 p.s.i. min.max. recommended length 788"

- air filter-regulator unit flow-rate min. 220 gallons/min.air connection 1/4"NPT

- air lubricator 2-3 drops/minute

Jack lifetime:

When designing the jack, for the purposes of verification of the device’s fatigue life(structural mechanical strength) a fatigue life of 200,000 (two hundred thousand) liftingcycles was assumed. Considering a lifetime of 10 (ten) years, this corresponds to amaximum of 50 - 100 (fifty - one hundred) lifting cycles per day.

For maintenance procedures andinstructions for correct use of theelements which make up the filter-regulator unit installed, refer to therelative use and maintenancemanual supplied with the unititself.

Edition 11/03



Technical data of WS-02300 air-hydraulic jack

- lifting piston steps 2- recommended height (not including extensions) minimum 11.81"

1st step 18.03"2nd step 24,41"

- maximum operating load 1st step 66140 Lbs.2nd step 33070 Lbs.

- cylinder stroke 12.60"- operating air pressure min. 143 p.s.i. max. 157 p.s.i.- net weight 150 Lbs.- standard supply color frame and handle: safety green

cylinder: black- noise level acoustic pressure level at operator

position during loading: 73,4 dB(A)acoustic pressure level at operatorposition during discharge: 67,6 dB(A)

- force graph see graph below

- accessories supplied (on request) shim(lifting cylinder extension)

page 4

oper

atin

g lo

ad -

Lbs.

71 86 100 114 128 1430

6614055115

3307044090

1102022045

Ø 3.35"

Ø 2.36"

157 172

1 step

2 step

cylinderstroke

operating air pressure - p.s.i.

3.94

"

Ø 2.75"

1.96

"

Ø 2.75"

PL 50 PL 100

Ø 2.36"

Ø 3.35"

The lifting technical data areprovided on the nameplate (chap. 12drawing 1 item 29)

Edition 11/03


- WS-02300 operating dimensions


page 5

51.18"70.87"

7.8

7"

20.87"

12.2

0"

24

.41

"1

8.0

3"

11.8

1"

53

.94

"

33

.46

"

7.8

7"

- WS-02300 air hydraulic system diagram

1

23

4 5

B

A

7

8

9

6

11

12

F1 F

13

A - intake valveB - delivery valveF - air connection, 1/4" NPTF1 - female air connection, 1/4" NPT

8 - vacuum valve9 - control valve

10 - fluid level dipstick11 - air relief valve12 - enabling valve13 - filter-regulator

1 - cylinder2 - upward limit stop3 - lowering control valve4 - lowering safety valve5 - relief valve6 - pump7 - tank

10

12

.60

"

air circuit

hydraulic fluid circuit

Edition 11/03


CH

AP

TE

R

SAFETY RULES

3

Edition 11/03


Safety rules 3

3.1 Responsibility

The ARI-HETRA air hydraulic jack model WS-02300 is practically designed andconstructed with special attention to convenience and to the safety of operators andmaintenance staff.

ARI-HETRA declines all liability deriving:- from improper use of the jack;- from use of the jack by unauthorized/unqualified personnel;- from partial or total failure to comply with the safety and accident prevention rules

described in this manual;- from defects in the energy supply;- from inadequate maintenance;- from unauthorized modifications or repairs to the jack;- from the use of non original spare parts.

The jack’s user is also responsible for ensuring that all operators are familiar with thecontents of this manual.The user must also provide the necessary training for the staff who are to operate andmaintain the machine described, checking their suitability for the tasks.

page 1

CAUTION

Read this manual carefully before using, maintainingor doing any other work on the machine.

Take care of the operating space around the machine;it must be free of obstacles, clean and adequatelylit.

Before using the machine, ensure that any conditionhazardous for safety has been appropriatelyeliminated.

3.2 General safety regulations

Edition 11/03


Safety rules 3

page 2

Avoid improper use of the machine.

Make sure that all guards or other protective fixturesare in place and that all safety devices are presentand in good working order.

Do not allow unauthorized staff to do work on themachine.

Inform those in charge of maintenance of anymalfunctions.

Never use the machine when malfunctions arepresent.

Do not wear clothing or other items which may easilybecome tangled on moving parts.

When safety regulations require, wear approvedgarments or accident prevention devices.

Carry out checks and maintenance procedures inaccordance with the instructions provided and withsafety regulations and measures; after all operations,check that no tools or foreign bodies are left amongstthe machine’s components to avoid damage to thejack and/or injury to personnel.

CAUTION

3.3 Specific safety regulations

This section of the manual provides the guidelines for safe operation of ARI-HETRA airhydraulic jacks.

Most accidents which occur are caused by failure to comply with a few simple rules ofprudence and safety.

Edition 11/03


Safety rules 3

Remember that the safety devices which the producer supplies on its air hydraulic jacksare for the simple purpose of preventing accidents.

The air hydraulic jack’s owner must make sure that:- his staff are trained for the work assigned to them in accordance with safety regulations;- safety regulations are always complied with;- a sign carrying the safety rules is hung in the working area.

page 3

When using the air hydraulic jack comply with the following safety procedures:

The WS-02300 air hydraulic jack is constructed asa means for partially raising vehicles with thelimitations stated in this manual.

The air-hydraulic jack must only be used for thepurpose of removing/replacing the wheel of thevehicle; all other uses of the jack are improper.

CAUTION

CAUTION

The air hydraulic jack must be used by qualifiedpersonnel judged capable of doing the work in areliable manner and with the physical skills andaptitudes necessary for carrying out their tasks.The conditions of use must be such as to guaranteesafety, ensuring that the operator always remainsoutside the profile of the vehicle, including theworking areas or zones along the side of the vehicle,or underneath the raised vehicle.

The WS-02215 air hydraulic jack fulfils the essential safety standards with regard to itsdesign and construction.

Edition 11/03


Safety rules 3

CAUTION

page 4

Use of more than one jack to remove/replace morethan one of the vehicle’s wheels simultaneously isforbidden.

Use of more than one jack to completely raise thevehicle is forbidden.

Before using, check that the air hydraulic jack hasan adequate lifting capacity.

Before using, check that the instructions given byARI-HETRA (see point 2.3) have been compliedwith and all connections made correctly.

The vehicle must be on a solid flat (paved) surfacewith load-bearing capacity sufficient to support thelifted load.

The operator must operate the jack from out-side the area of the vehicle.The operator must be able to see both the jackand the load whenever the jack is in motion.Also ensure that there are no people or animalsin the vicinity of the vehicle to be raised.

Get to know the control devices and theirfunctions.

During lifting, the vehicle must be blocked in positionusing wedges or the handbrake (the vehicle shouldbe empty); in all cases, check the stability of theload.

Use of the jack in conditions with wind speeds inexcess of 30 Mph is forbidden.

Incorrect positioning of the jack may cause theraised vehicle to fall.

Edition 11/03


Safety rules 3

page 5

CAUTIONDo not do any work without prior authorization anddo not permit unauthorized personnel to work onthe machine.

Before maintenance, cleaning, etc. of the air hydraulic jack, comply with the followingsafety procedures:

CAUTION

fig.3.1

The jack must only be applied to the vehicle in thepoints indicated by the vehicle’s constructor.

After lifting, support the load with suitable equipmentwhile the operator is at work.

Lifting people is absolutely forbidden.

Performance of any type of operation under thevehicle raised using the air hydraulic jack isabsolutely forbidden.

When working on the vehicle’s wheels, raise it justfar enough to lift them above the ground.

If the contact point between the vehicle and the jackis higher than standard, a shim may be inserted ifenvisaged (see accessory provided).Use of other types of shim is not permitted.Insertion of two or more shims is forbidden (seefig. 3.1).

Edition 11/03


Safety rules 3

page 6

Any repair work must only be carried out with thejack out of use, disconnected from the compressedair supply and with the pneumatic systemdepressurized.

Comply with the information given in this manualunder the maintenance and service headings.

The zone where maintenance is carried out mustalways be kept clean and dry.

Remove any oil spills.

Never insert your body, limbs or fingers intoarticulated or sharp openings in parts of the machine;risk of crushing or cutting.

Never align holes or slots using your fingers; usesuitable tools.

Never use petroleum spirit or inflammable solventsas detergents. Always use authorized noninflammable, non toxic commercial solvents.

Never use compressed air for cleaning parts. If othersystems cannot be used, protect yourself withgoggles with side guards and keep the pressure at 29 p.s.i. or below.

Never use naked lights during checks ormaintenance.

CAUTION

Edition 11/03


Safety rules 3

page 7

CAUTIONPRESSURE

CAUTION

CAUTION

Comply with the warnings given by the signs; failureto do so may cause injury.Make sure that the signs are always present andlegible; otherwise, fit or replace them.

Never top up the fluid in the hydraulic circuit withoutfirst disconnecting the machine from the compressedair supply and bringing the pneumatic circuit to thenormal ambient pressure.

Never carry out operations such as drilling, cuts orwelding on the machine’s frame, since this mightdamage it beyond repair.

If the machine is out of use after a breakdown, forrepairs or because it is not operating safely, apply awarning label.

3.4 Warning and danger labels

The machine is fitted with labels which identify dangers or warn about residual risks towhich the operator is exposed.

fig.3.2

Edition 11/03


Safety rules 3

page 8

2 - hydraulic limit stop at maximum heightfitted inside the cylinder, it limits the workingstroke of the jack (2, fig. 3.4).

3 - check valveprevents the load from descending (3, fig. 3.3).

4 - lowering safety valveprovides a controlled load descent speed (4,fig. 3.3).

5 - lowering control valvebraking mechanism allowing the descent of theload to be controlled (5, fig. 3.3).

6 - vacuum valveallows the cylinder to descend when no load ispresent (6, fig. 3.3).

7 - relief valvestabilizes the air pressure if excessive (7, fig.3.3).

3.5 Safety devices and components

The WS-02300 air hydraulic jack is equipped with safety devices and components toprotect it from damage and allow it to operate correctly.These safety devices or components are listed below:

fig.3.3

3

4

5

6

8

7 9

fig.3.4

2

Edition 11/03


Safety rules 3

page 9

3.6 Operator position

fig.3.5

8 - compressed air connectionsthe hydraulic cylinder is operated by supplyingcompressed air; the necessary connection ismade by means of special hoses (8 fig. 3.3),meaning that there is a risk generated byconnections and pressurized pneumaticcomponents.Since the operating pneumatic pressure is 143-157 p.s.i., these connections are made usinghoses having external diameter 0.24", with asafety coefficient 3 times the operating pressure.

9 - hydraulic connectionsthe supply of hydraulic fluid from the pressuregenerator to the cylinder is provided by meansof connections using special hoses (9, fig. 3.3),conduits inside the bodies of the componentsconcerned, with O-ring seals between theirinterfaces.

CAUTION

The air hydraulic jack is designed for use by a singleoperator who must stand in the position shown infig. 3.5.This position allows the operator a good view ofthe various phases of use and also allows him touse the control devices quickly if necessary or inemergencies.

Edition 11/03


Safety rules 3

page 10

3.7 Noise level

The noise measurements on the machine have been made both during loading (lifting ofthe weight) and during discharge (descent of the load).The mean acoustic pressure value measured in the operator position for the WS-02300air hydraulic jack during the tests referred to above is:

- acoustic pressure level at operator position during loading : 73,4 dB(A)- acoustic pressure level at operator position during discharge : 67,6 dB(A)

Therefore, no special precautions are required in terms of acoustic hazard during use ofthe WS-02300 air hydraulic jack.

CH

AP

TE

R

SHIPMENT AND TRANSPORT

4

Edition 11/03


Shipment and transport 4

4.1 Testing

After production, the jack is tested to check that it operates correctly.The following tests are performed:- dynamic functional test in normal working conditions;- tightness test in critical ambient conditions;- tightness test in static conditions;- relief valve setting test;- overload test;- stability test;- lowering speed test;- maximum load test;- test on control of descent in absence of load.

4.2 Packaging and transport

The jack may be delivered as follows:

- packed in triple-corrugation cardboard into a crate;

Dimensions and weight of packaging of each carton

fig.4.1

18.0

0"

71.26"

12.60"

Model

WS-02300

Lbs.

170

page 1

Edition 11/03


Shipment and transport 4

fig.4.2

page 2

CAUTION

If a crate is used, the panels should be removed inthe order shown in fig. 4.2.

The packaging should be handled using a pallet truckor similar suitable equipment.In case of lifting, use slings with min. capacity 1100Lbs. and length 59".Always keep the load as low as possible whenhandling, for improved stability and visibility.

Once the packaging has been removed, the jack canbe handled like any trolley thanks to its side wheelsand handlebar.

On receipt of the machine, make an initial check fordamage in transit.In case of damage or if in doubt do not use themachine and contact your dealer.

Any items used in the packaging (polyethyleneguards, expanded polystyrene, nails, screws, piecesof wood, etc.) must not be left within reach ofchildren as they are potentially dangerous.Place these materials in the specific collection pointsif they are pollutant or not biodegradable.Materials must be disposed of in accordance withapplicable laws.

CH

AP

TE

R

5

CONTROLS

Edition 11/03


Controls 5

fig.5.1

1

23

5.1 List and description of controls

1 - handlebar positioning lever2 - operation enabling lever3 - lifting cylinder up/down control lever

1 - handlebar positioning levera mechanical lever operated to release the system which locks the handlebar inposition, so that it can be moved to the various working positions (see fig. 5.2):

A- rest positionB - intermediate position for moving the jack aroundC- low position, for operation

page 1

BA C

fig.5.2

Edition 11/03


2 - operation enabling leveroperated to allow compressed air to pass to the control valve, permitting use of theload lifting and lowering functions (see next point).

3 - lifting cylinder up/down levertwo-position control lever which raises and lowers the lifting cylinder (see fig.5.3):- move to position B to raise the lifting cylinder;- move to position C to lower the lifting cylinder.When the control lever is returned to the central position A, the command is disabledimmediately - stop function.

Controls 5

fig.5.3

AC

B

page 2

CH

AP

TE

R

INSTALLATION

6

Edition 11/03


Installation 6

6.1 Start-up

After transporting the machine close to the intended zone of use, removing any packagingand checking for obvious damage, following the procedures described in Chap. 4, thejack can be put into operation.

Moving the handlebar to the working position (restposition)

- pull the handlebar positioning lever - 1 - in thedirection shown in fig. 6.1 and move thehandle-bar to the “rest position” (see fig. 5.2A);

1

fig.6.1

page 1

Connecting to the compressed air system

CAUTION

The supply line must be fitted with a suitable stopvalve to allow the jack system to be cut off from theworkshop system in case of maintenance or workon the machine not directly related to normal use.

It is also essential to use a filter-regulator unitcomplete with pressure gauge and air lubricator up-stream of the air hydraulic jack in order to optimizethe jack’s performance.

Edition 11/03


Installation 6

page 2

The compressed air supply line must also be fittedwith a suitable stop valve to allow the jack systemto be cut off from the workshop system in case ofmaintenance or other work on the machine.

In order to allow the jack to operate correctly, thepressure of the compressed air supply line mustalways be 143-157 p.s.i.; at lower pressures thejack’s lifting capacity is proportional to the pressure,while at higher pressures the relief valve (see point3.5 fig. 3.3 item 7) will stabilize it on the nominalvalues without damaging the system.The machine should therefore be supplied from apoint on the compressed air line as close as possibleto the compressor (max. 788"), or if this is notpossible, a small accumulation reservoir should beinstalled immediately upstream of the filter-regulatorunit.

Make sure that the compressed air supply providedby your system satisfies the machine’s consumptionlevels (110 gallons/min.).

fig.6.2

1

CAUTION

- connect the compressed air supply line to thefemale 1/4" NPT connection on the machine (1,fig. 6.2);

- supply the pneumatic system and set the pressureat between 143 and 157 p.s.i.;

- adjust the quantity of oil while air passes throughthe lubricator of the filter-regulator unit at a valueof 2-3 drops per minute.

CH

AP

TE

R

USING THE MACHINE

7

Edition 11/03


Using the machine 7

7.1 Checks and inspections

Once the machine has been prepared for use by carrying out the steps described inChap. 6, the operator must perform a series of preliminary procedures and checks:- check that the compressed air supply to the machine is present and correct (see

point 6.1);- check that lubrication is present in the points where envisaged, especially in the

lubricator of the filter-regulator unit installed by the user upstream of the jack;- make sure that all warning and danger signs are present and legible;- carry out a number of operations without load to acquire the sensitivity needed for

safe operation, proceeding as described below;- with regard to safety, see Chap. 3.

7.2 Use

Move the jack towards the vehicle with the handlebar in the intermediate position usedfor moving the jack around (see fig. 5.2B) and then lower the handlebar into the workingposition (see fig. 5.2C) and bring the jack to the exact point where the vehicle is to belifted (see instructions in vehicle handbook).

1

fig.7.1

To move the handlebar to the working positionsmentioned above (intermediate position for moving- low position for operation):- pull the handlebar positioning lever - 1 - in the

direction shown in fig. 7.1 and move the handlebar to the desired position; operating the leverreleases the system which locks the handlebar inposition.

page 1

Edition 11/03


Using the machine 7

fig.7.2

AB

Raising

Before raising, make sure that any conditions whichrepresent safety hazards have been appropriatelyeliminated.To start raising, bring the jack to the chosen positionand operate:- the operation enabling lever - 2 - in the direction

shown in fig. 7.2;- move the lifting cylinder up/down control lever -

3 - towards side B (see fig. 7.2) - the jack startsto lift the load;

- once the desired height is reached, return the lifting cylinder up/down lever - 3 - to the centralposition A (see fig. 7.2) - the load will be held inthe position reached;

- release the operating enabling lever - 2.

If the contact point between the vehicle and the jackis higher than standard, a shim may be inserted ifrequired (see accessories provided, point 2.4).Use of other types of shim is not permitted.Insertion of two or more shims is forbidden (seefig. 3.1).If shims other than those supplied by the jack’smanufacturer are used, no liability is accepted fordamage occurring from their use.

To fit the shim provided, proceed as follows:- fit the shim into the seat provided on the top of

the lifting cylinder (see fig. 7.3).

1

2

3

CAUTION

page 2

fig.7.3

Edition 11/03


Using the machine 7

While lifting, check that no foreign bodies areinserted between the various telescopic cylinder stepsand the dust seals (see par.12.5 Tab. 3, item 72-75) since they might cause irreparable damage tothe lifting cylinder assembly.

Lowering

To start lowering the load, operate:- the operation enabling lever - 2 - in the direction

shown in fig. 7.4;- move the lifting cylinder up/down control lever -

3 - towards side C (see fig. 7.4) - the jack startsto lower the load; keep the lever in this positionuntil the lifting cylinder has been completelylowered;

- return the lifting cylinder up/down lever - 3 - tothe central position A (see fig. 7.4);

- release the operating enabling lever - 2 (see fig.7.4);

- using the handlebar, remove the jack from theworking area;

- pull the handlebar positioning lever - 1 - in thedirection shown in fig. 7.4 and return the handlebar to the rest position (see fig. 5.2A).

AC

2

3

fig.7.4

1

page 3

7.3 Stopping

In normal conditions of use, to stop the jack rising or descending simply release thelifting cylinder up/down control lever - 3 - in the central position A (see fig. 7.4).Releasing the operation enabling lever - 2 - (fig. 7.4) has the same effect, stopping alljack drive systems, since its compressed air supply is cut off.

Edition 11/03


CH

AP

TE

R

MAINTENANCE

8

Edition 11/03


Maintenance 8

8.1 Foreword

This chapter lists the routine maintenance procedures for the machine; their implementationwill keep the jack in perfect working order and prevent any malfunctions.The recommended procedures must be considered as the absolutely minimum, essentialfor keeping the machine in good condition.The user may decide to carry out other operations on the basis of his own experience,bearing in mind the workload and the environment.

All maintenance, lubrication and cleaning operationson the jack must be performed with the machinedisconnected from the compressed air system andwith the pneumatic system depressurized.Maintenance or servicing procedures other than thosedescribed in this chapter must only be carried outby qualified staff at an authorised service centre.In particular, see Chap. 3 with regard to safety.

CAUTION

8.2 Before each use of the machine

Before each use of the machine:

A- check that the pneumatic system is being supplied correctly; the compressed airmust be at 143-157 p.s.i..When setting the pressure, to obtain the correct valuealways adjust upwards.

B - drain any condensate present in the filter-regulator-lubricator unit upstream of thejack’s compressed air supply intake also check the amount of condensate collected;if there is a large amount, check more frequently and also inform otheroperatives so that appropriate solutions can be adopted.

page 1

Edition 11/03


Maintenance 8

8.3 Daily maintenance

At the end of every working day:

A- clean the machine thoroughly, particularly the lifting cylinder, removing any residuesof dust, grease or other external materials.

8.4 Weekly maintenance

At the end of every working week:

A- check the oil level in the filter-regulator-lubricator unit upstream of the jack’scompressed air intake. The oil in the cup keeps the seals of the machine’s pneumaticequipment lubricated, ensuring a long working life.For instructions on how to top up the oil level, consult the use and maintenancemanual for this device.

B - check that no hydraulic fluid leaks from the telescopic steps of the lifting cylinder; ifslight leaks are noted from the hydraulic circuit seals, check the fluid level in the tankand top up if necessary, proceeding as follows:

page 2

fig.8.1

1

2

- use the spanner provided (see 1, fig. 8.1) tounscrew the fluid filler/dipstick cap (2, fig. 8.1)and check that the fluid level is in line with themark on the dipstick;

- if a top-up is required, use a suitable fluid (seetable of recommended lubricants in point 8.7);

- screw the filler/dipstick cap of the hydraulic fluidtank back into place.

Edition 11/03


Maintenance 8

When topping up with hydraulic fluid, take care not to exceed the level indicated on thedipstick.

If leaks persist and compromise the regular operation of the jack, call in the after-salesservice; skilled staff will eliminate the problem reported.

C - clean the machine thoroughly, particularly the lifting cylinder, removing any residuesof dust, grease or other external materials.

8.5 Monthly maintenance

Make the following checks monthly:

A- clean the filter of the filter-regulator-lubricator unit upstream of the jack’s compressedair supply intake; replace it if necessary.For instructions on how to clean or replace the filter, consult the use and maintenancemanual for this device.

B - check the pneumatic system for damage.

C - check that the identification, warning, danger and maximum lifting load signs are inplace and legible (chap.12, drawing 1 - item 29).

8.6 Annual maintenance

The following maintenance work should be carried out annually:

A- change the fluid in the hydraulic circuit and tank by proceeding as follows:- use the spanner provided (see 1, fig. 8.1) to unscrew the fluid filler/dipstick cap

(2, fig. 8.1) on the top of the tank;- suck out the fluid from the tank using a suitable device;- refill with fluid of suitable type (see table of recommended lubricants in point 8.7);- screw the filler/dipstick cap of the hydraulic fluid tank back into place.

page 3

Edition 11/03


Maintenance 8

8.7 Table of recommended lubricants

Do not mix the fluid with other products.If possible, always use fluid of the same make.ARI-HETRA uses FINA lubricants when the jack is prepared in the factory.

page 4

hydraulicfluid

characteristics

viscosity 3°ENGLER at 122°F

NUTO

H 32ENERGOL

HLP 32OSO

32HYGLISS

32

ESSO BP AGIP ELF

Always keep lubricants out of the reach of children.

Always read the warnings and precautions indicatedon the containers of the lubricants.

Avoid contact with the skin, and wash yourselfthoroughly after use.

Deal with spent lubricants in accordance with thelaws on pollution prevention.

CAUTION

8.8 Putting into store

If the jack is to be out of use for a long time, proceed as follows:

A - check thoroughly, and replace any damage or worn parts.B - give the machine a thorough general cleaning.C - protect the machine and place it in a dry, sheltered place.

The procedures listed above will ensure that the equipment will be in perfect workingorder when it is put back into service.ARI-HETRA is always at your service for any technical service and parts requirements.

HYDRAULIC

32

FINA

CH

AP

TE

R

SCRAPPING

9

Edition 11/03


Scrapping 9

9.1 Scrapping

The regulations in force require the user to dispose of the machine properly; the partsmust be dismantled and sorted to allow recycling, especially metal and plastic parts.

When scrapping the jack, the regulations in force require the user to take special carewith regard to particularly pollutant materials present on the machine, such as:- plastic;- lubricating oils and greases.

There are no toxic or corrosive substances.

page 1

After separation, all parts of the machines must bedisposed of by specialist companies working inaccordance with current legislation.

CAUTION

Edition 11/03


CH

AP

TE

R

TROUBLESHOOTING

10

Edition 11/03


Troubleshooting 10

10.1 Troubleshooting

This chapter supplies a brief guide in table form for solving problems which may ariseduring operation of the machine.

If a problem occurs during operation, disconnectthe machine from the compressed air supply anddepressurize the pneumatic system immediately.Apply a sign to indicate that the machine is out ofuse due to breakdown or repair or not operatingsafely, and then identify the possible causes of theproblem.

CAUTION

FAULT CAUSE REMEDY

The lifting cylinder does notrise, or rises very slowly.

Low pressure in thecompressed air supply line.

Check and eliminate anyrestrictions or head lossesin the compressed airsupply line.

The lifting cylinder rises butdoes not complete its travelstroke.

The hydraulic fluid levelinside the tank is below theminimum.

Top up the fluid level insidethe hydraulic system tank(see instructions in point8.4).

Excessive hydraulic fluid isseen to leak through the holeon the pump unit aerationfilter (see par.12.4, Tab. 2item 125).

The hydraulic O-ring seal(see par.12.4, Tab. 2item 129) is worn.

Replace the hydraulicO-ring seal (see par.12.4,Tab. 2 item 129).

page 1

Edition 11/03


Troubleshooting 10

FAULT CAUSE REMEDY

The pump unit is operatingperfectly, but the liftingcylinder is unable to raisethe load.

Dirt in the hydraulic circuitdelivery and intake valves.

Remove the dirt from thehydraulic circuit deliveryand intake valves.

The lifting cylinder does notwork during lowering underload.

The lowering control valveis worn.

Check the lowering controlvalve and replace if neces-sary.

CAUTION

page 2

Users are advised to call in the ARI-HETRA after-sales service to correct the jack malfunctionsdescribed above; skilled staff will solve the problem.

CH

AP

TE

R

WARRANTY

11

Edition 11/03


11

11.1 Warranty

ARI-HETRA air-hydraulic jacks are guaranteed for 24 (twentyfour) months from thedate of delivery, against any defects of materials or construction.

The warranty only covers replacement free of charge on the supplier’s premises of anycomponents in which actual construction defects have been identified.ARI-HETRA declines all responsibility and the warranty becomes null and void if themachine has been tampered with, or has been subject to unauthorized modifications, orif non original components have been installed.Damage caused by negligent or incorrect or improper use or maintenance, or caused byany phenomena not deriving from normal use, are also excluded from the warranty.The machine must be used and maintained in accordance with the instructions given inthis manual.

All safety measures must be complied with and the safety devices or components mustbe checked regularly to ensure that they are not damaged and in good working order.

page 1

Warranty

Edition 11/03


CH

AP

TE

R

SPARE PARTS

12

Edition 11/03


Spare parts 12

page 1

12.1 Ordering instructions

The tables provided on the following pages indicate the main air hydraulic jack spareparts, marked with their code numbers.

Orders for parts must be accompanied by the following information:

1- Jack type;

2- Jack serial number;

3- Code number of the part required;

4- Quantity required;

5- Name of part.

ARI-HETRA declines all responsibility when shipping customers' orders which do notinclude the above references.

12.2 Index of tables

Table 1Frame assembly WS-02300

Table 2Pump and plate assembly WS-02300

Table 3Cylinder assembly WS-02300

Edition 11/03


Spare parts 12

page 2

12.3 Frame assembly WS-02300

tab.1

404

3539

5140

38

41

34

3434

400

1

50

36

40142

34

7.078.0119

Edition 11/03


Spare parts 12

page 3

tab. 1Frame assembly WS-02300

Item Code Q.ty SPARE PARTS

12356789

10111213141819202122232425262728293031323334353638394041425051

400401404

5.085.01163.095.00046.075.00183.093.00125.064.00406.011.00055.013.00145.031.01015.094.03233.095.00055.011.00085.013.00153.073.00015.066.00213.031.00083.072.01085.013.00165.066.00223.072.00103.006.00083.094.00133.072.01046.040.00035.085.01095.085.07515.085.07505.050.00033.094.02132.025.00073.070.00583.094.00053.070.00174.091.00124.091.00085.065.00173.070.00593.054.04122.055.00063.094.02183.070.00033.070.00575.085.0008

121111111111212222424411111614311111112111

UP / DOWN LABELHANDLEHANDLEPLUGSPRINGRODSPACERNUTPINHANDLERODBUSHINGWHEELPINNUTWASHERSPACERPINWASHERSEEGERSCREWWASHERFRAMENAME PLATECAPACITY PLATEMODEL PLATERUBBER PACKINGSCREWHARD TOPUNIONSCREWEXTENSIONVALVEVALVEBLOCKCONNECTORSET OF TUBESCOVERINGSCREWCONNECTORSILENCERPLATE

Edition 11/03


Spare parts 12

page 4

12.4 Pump and plate assembly WS-02300

tab.2

7.078.0041

7.078.0109

Edition 11/03


Spare parts 12

page 5

tab. 2Pump and plate assembly WS-02300

Item Code Q.ty SPARE PARTS Item Code Q.ty SPARE PARTS

CONNECTORCONNECTORWASHERBALLPLUGSEAL RINGSMALL PISTONUPPER HEADSCREWSCREWO-RINGRUBBER BUFFERSEAL RINGO-RINGPISTONPISTONWASHERSPRINGSPRINGJACKETSPRINGSILENCERFILTERSCREWSCREWRING NUTBUSHINGSEAL RINGO-RINGPUMP BODYBALLCENTERINGSPRINGO-RINGPLUGBALLCENTERINGSPRINGWASHERPLUGSCREWSCREWWASHERBALLCENTERINGSPRINGPINO-RINGPLUGSCREW

NUTUNIONNOZZLEVACUUM VALVESEALPISTONSPRINGPINO-RINGHEADO-RINGVALVE SEATO-RINGSEALSCREWCENTERINGSPRINGCENTERINGO-RINGCONNECTING PLATESLOW DOWN VALVESCREWJACKET

SET OF SEALS PLATE

SET OF SEALS PUMP

3.070.00583.070.00593.052.00033.076.00125.084.00013.053.01015.068.00675.086.00033.094.00083.094.00093.051.00725.050.00013.051.00733.051.00395.068.00445.068.00405.008.00095.064.00245.064.00255.018.00295.064.00265.093.00015.041.00053.094.00063.094.00075.045.00155.014.00123.051.00663.051.00375.028.00373.076.00115.046.00015.064.00223.051.00025.094.03093.076.00045.046.00125.064.00233.052.00045.094.03083.094.00143.094.02033.072.01033.076.00135.046.00085.064.00315.066.00133.051.00645.094.03043.094.0216

12311111511122111111111211111111111111114661111211

34415567110111112113114

114/1115116117

117/1118119120121122123124125

125/1126

126/1127128129

129/1130131132133134135136137138139140141142

142/1143144145146147148149

**

*

********

******

**

**

**

3.031.00163.070.00615.094.03115.065.00103.053.01045.068.00635.064.00345.066.00153.051.01095.086.00123.051.01075.028.00393.051.01083.005.00013.094.00155.046.00035.064.00015.046.00093.051.00405.034.00767.078.00543.094.00335.018.0734

3.054.0410

3.054.0409

11111111411122411111141

150151152153158159160161162163164165166

166/1167168169172173174183410411

*

**

*

*

*

**

*

Edition 11/03


Spare parts 12

page 6

12.5 Cylinder assembly WS-02300

tab.3

7.078.0750

3.054.0421

72

7374

76

75

82

83

69

71

68

70

80

81

63

81

48

49

50 53

79

55

108

6766

109

405 65

406

407

408

407

Edition 11/03


Spare parts 12

page 7

tab. 3Cylinder assembly WS-02300

Item Code Q.ty SPARE PARTS

BASEMENTTANKCONNECTORTELESCOPIC PIPEWASHERSEGERPISTONSCREWBALLCYLINDER LINERCYLINDER LINERHEAD PLATESCREWDUST-SCRAPERSEAL RINGO-RINGDUST-SCRAPPERSEAL RINGTELESCOPIC PIPEO-RINGO-RINGOIL LEVELCOVEREND STROKE VALVEVALVEMAX AIR VALVE SETSLIDE RINGSLIDE RINGSLIDE RING

SET OF SEALS

4849505355636566676869707172737475767980818283

108109405406407408

5.012.00035.090.07506.090.07505.013.07513.052.00035.006.01145.068.07503.094.04063.076.00125.018.07515.018.07505.033.00183.094.00133.053.01113.051.01773.051.01783.053.01103.051.01765.013.07503.051.00773.051.01406.069.02155.027.00087.078.01157.078.01217.078.01223.007.07503.007.07523.007.0751

3.054.0750

11111111111131111111211111242

*

*****

**

***

*

Edition 11/03


AUTOMOTIVE RESOURCES, INC.12775 Randolph Ridge Lane

Manassas - VA 20136(703) 359-6265

FAX (703) 359-6405www.ari-hetra.com

E-mail: [email protected]

air hydraulic jacks - arihetra service manuals/floorjacks...edition 11/03 air hydraulic jacks air...

Documents