AVANT 635 2023 Operator's Manual

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English

Operator's Manual

2023-

www.avanttecno.com

A478339 2024 1 EN 2023-

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Надежда

May 5, 2025

Давление в шинах какое должно

1 comments:

Mr. Anderson

May 17, 2025

The recommended tire pressure for the AVANT 635 2023 is not specified in the provided context. It only states to "keep tyre pressure within recommendations" but does not give a specific value.

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Summary of Contents for AVANT 635 2023

Page 1 English Operator's Manual 2023- www.avanttecno.com A478339 2024 1 EN 2023-...
Page 2: Table Of Contents
Avant 635 640 2024 1 TABLE OF CONTENTS Lights ..................76 Cabs (option) ................78 INTRODUCTION ............3 OPERATING INSTRUCTIONS ........83 Foreword ................. 3 Starting the loader ..............84 Intended use ................4 Stopping the engine (Safe stopping procedure) ....87 Make sure all relevant manuals are available.....
Page 3: Introduction
Foreword AVANT TECNO OY wants to thank you for purchasing this Avant loader. It is the result of Avant’s long experience in design and manufacturing of compact loaders. We ask you that you read and understand the contents of this Operator's Manual completely before operating the loader.
Page 4: Intended Use
Particularly the regulations concerning the use of the equipment on public road areas must be observed. Contact your Avant dealer for more information about local requirements before you operate the loader on road areas.
Page 5: Make Sure All Relevant Manuals Are Available
Always read the Operator's Manual of each attachment carefully. Contact your local Avant dealer for any questions, service, spare parts or about any problems that may occur with the operation of your loader or its attachments.
Page 6: Operator Qualification
Some equipment or options that are shown in this Operator's Manual may not be available. Pictures in this Operator's Manual may show optional equipment. Availability of optional equipment is subject to change. Some options may preclude the installation and use of some other option or options. Check with your Avant dealer for more information.
Page 7: Avant Warranty
Any repairs or modifications performed without the prior authorisation of Avant Tecno Oy will cancel this warranty. During the first two years of operation or first 1000 hours (whichever is the soonest) Avant Tecno Oy warrants to replace any part or repair any defect which may occur, subject to the terms detailed below: The product has received regular maintenance in accordance with schedules given by the manufacturer.
Page 8: Safety First
Safety First Avant 635 640 Safety First Incorrect or careless use of the loader can cause a serious accident. Before you operate the loader, familiarise yourself with the correct use of the loader. Read and understand this Operator's Manual, as well as all relevant safety instructions, local regulations, and safe working practices.
Page 9 Avant 635 640 Safety First Do not exceed the tipping load. Familiarise Risk of crushing under boom or yourself with and follow the load diagrams and attachment - Stay away from other information in this Operator's Manual. lifted boom and attachment.
Page 10 Safety First Avant 635 640 Hydraulic pressure - Risk of Risk being crushed serious injury. Hydraulic hoses moving loader - Engage parking and other hydraulic components DANGER brake before leaving the driver's may have trapped pressure to WARNING seat. Follow...
Page 11 Avant 635 640 Safety First Pay attention to other machines and persons that are Risk of crushing between tyres - moving in the area. When learning how to operate Do not turn the steering wheel the loader, drive on level ground at a clear, open while standing near the loader.
Page 12 Safety First Avant 635 640 Elevated level of carbon dioxide or carbon monoxide Exposure diesel engine in breathing air cannot be noticed without dedicated exhaust cause cancer. measuring equipment. Signs of carbon monoxide Burning diesel fuel produces poisoning include nausea, headache, dizziness, many potentially cancer-causing drowsiness, and lack of consciousness.
Page 13: Handling Of Heavy Loads
Avant 635 640 Safety First Handling of heavy loads Hot exhaust gas Handle heavy loads attachments with care - Risk of Extremely hot exhaust gas and tipping over. exhaust pipe - Never run the WARNING  engine, or park the loader after...
Page 14 Safety First Avant 635 640 Whenever you handle heavy loads or heavy Risk of overturning - Articulated attachments: frame. Turning articulated frame  Always handle heavy loads only on firm, level can lead to overturning of the WARNING ground while you drive slowly with the loader.
Page 15: Operation On Uneven Surfaces, Gradients, And Near Excavations
Avant 635 640 Safety First Operation on uneven surfaces, Load sensor system: gradients, and near excavations The loader is equipped with a load sensor system. It gives an audible warning signal and at the same time Uneven ground can cause the...
Page 16 Safety First Avant 635 640 Whenever you operate the loader on uneven Risk of tipping over on uneven ground keep the following in mind: ground Drive slowly  inclined surfaces. Always keep Handle heavy loads only on even surfaces. load close to the ground. Keep...
Page 17: Personal Safety And Protective Equipment
Avant 635 640 Safety First Personal safety and protective Stay within the space protected by equipment the ROPS safety frame. Always Wear safe clothing personal protective keep seat belt on to stay on WARNING equipment. driver's seat and to avoid getting ...
Page 18 Always fasten the seat belt in order authorised Avant representative. If you modify the loader or attachment, it can become dangerous and to stay inside the protected area of cause serious injuries or even death. Unauthorised the safety frame.
Page 19 Avant 635 640 Safety First Working near powerlines Safety of digging Electrocution hazard - Stay away Risk of serious injury or death - from electric cables. Contact with Plan all digging work ahead. DANGER or working too close to electric...
Page 20: Electric System And Handling Of The Battery
Safety First Avant 635 640 Electric system and handling of the battery The battery of the 12 volt electric system of the Lead acid batteries produce loader is located at the rear, on the right side of the flammable and explosive gases loader under the cover.
Page 21: Fire Prevention
Avant 635 640 Safety First Fire prevention If the battery must be replaced, make sure that it meets size, installation, electrical Clean the loader to avoid build-up of flammable specifications of the original battery. The battery debris, such as dust, leaves, hay, straw, etc.
Page 22: Battery Disconnect Switch
Safety First Avant 635 640 Battery disconnect switch The loader is equipped with battery disconnect switch. The switch is located at the rear of the loader, on the right side. Always switch off the main current before you leave the loader unattended, and before you do any maintenance or inspections.
Page 23: Description Of The Loader
Write down the serial number and the manufacturing week of your loader and have them ready when you communicate with your dealer or Avant dealer or service partner. The serial number together with the manufacturing week make it possible to identify the...
Page 24 The engine ID label shows information about the engine model and serial number, and type approval information. This loader meets the EU 97/68 Stage 3a emission requirements. This loader must not be used or imported to EU or USA or other regions where higher emissions requirements apply. Avant 635 / 640 Stage IIIa...
Page 25: Main Parts Of The Loader
Avant 635 640 Description of the loader Main parts of the loader The following picture shows the main parts of the loader. These general parts are the same regardless of the cab type. 1. Front frame 5. Attachment coupling plate On the front frame are mounted: driver’s seat,...
Page 26: Signs And Decals
Make sure that the following signs and decals are clean, undamaged and readable. If any of these decals is missing or is unreadable stop using the loader until decal has been WARNING replaced. Ask for new decals from your local Avant dealer. Labels on loaders with ROPS canopy Labels on loaders with Cab GT...
Page 27 Avant 635 640 Description of the loader Table 2 - List of safety labels and markings on the machine Label Location Panel in front of driver's seat Product code A441476 Symbol Safety message WARNING Wrong use, misuse, or careless use can cause hazards that could be prevented with following the instructions properly.
Page 28 Description of the loader Avant 635 640 Label Follow safe stopping procedure and information regarding maintenance and service. Always remove the ignition key from the loader, and turn the battery disconnect switch to position OFF when leaving the loader unattended.
Page 29 Avant 635 640 Description of the loader Label Message WARNING Location Read operator's manual and keep it ROPS: On available. manual storage box Store the operator's manual in its place behind seat Cab GT: behind the driver's seat. Rear window...
Page 30 Description of the loader Avant 635 640 Label Message WARNING Location Risk of tipping over - Drive carefully on Panel near uneven ground. steering wheel The loader may tip over if driving on uneven ground at too high speed or with heavy load.
Page 31 Avant 635 640 Description of the loader Label Message DANGER Location Risk of death or serious injury - Boom, on both sides Never go under lifted loader boom. Lower boom down before leaving Product code driver's seat. A417273 (2 pcs) Lowering of loader boom can crush, causing death or serious injury.
Page 32 Description of the loader Avant 635 640 Table 3 - Safety labels in engine compartment Label Message DANGER Location Risk of burns from eruption of hot steam and Engine compartment, boiling water - Never open coolant reservoir on engine coolant when engine is hot.
Page 33 Avant 635 640 Description of the loader Table 4 - Additional decals on loaders equipped with a cab The following labels are placed to the loader if the loader is equipped with Cab L or Cab GT. Label Message EMERGENCY EXIT Location Use the window hammer to break glass.
Page 34 Description of the loader Avant 635 640 Table 5 - Information labels Label Message ROPS/FOPS Approval, on Location loaders with ROPS canopy or Cab L ROPS frame, inside Product code A416355 ROPS/FOPS Approval, on Location loaders with Cab GT Cab GT, inside...
Page 35 Avant 635 640 Description of the loader Correct type of hydraulic oil Location See page 135 Near hydraulic oil filler opening. The original hydraulic oil filled by the manufacturer is shown with one of the following labels. Product codes A446611...
Page 36: Technical Specifications
Description of the loader Avant 635 640 Technical specifications Dimensions Height and width Tyre Width Height General dimensions With standard wheels 27x8.50-15" TR 1030 mm 2048 mm Length 2610 mm 23x8.50-12" Width 1290 mm 1080 mm 1955 mm TR/GR Height 2060 mm 23x10.50-12"...
Page 37: General Information
2 auxiliary hydraulic pumps Standard: Faster multiconnector system on front. Auxiliary hydraulics Optional: Extra auxiliary hydraulics coupling on front or rear. Attachment coupling Avant quick coupling attachment plate Hydraulic oil tank capacity 38 l ISO VG 46, mineral oil only Hydraulic oil type...
Page 38: Engine Specifications
Emissions level, Avant 635/640 Stage IIIa This version of Avant 635/640 comply with the EU regulation 97/68/EC Stage IIIa emission standard. This version of the 635/640 must not be sold to or otherwise imported to the EU/EEC area, USA and Canada or other regions, where Stage V /Tier 4 emissions standards are required.
Page 39: Fuel Requirements
Contact Avant service in case of problems related to fuel in cold temperatures.
Page 40 64973 26x12.00-12" 65739 2,1 bar 64973 320/60-12" 65224 4,0 bar 65603 65459 2,8 bar 320/55-15" 65506 4,0 bar 26.5x14.00-12" GR (**) (*) 65787 1,8 bar (*) Only available for Avant 635 (**) Requires 40 mm spacers on the wheel hubs.
Page 41: Drive Speed
Use only spacers recommended by Avant Tecno Oy. Too thick spacers damage hydraulic motors. Contact your Avant dealer more information.
Page 42: Auxiliary Hydraulics Oil Flow
Description of the loader Avant 635 640 Auxiliary hydraulics oil flow Ballasted tyres The following graphs show auxiliary hydraulics output flow at different engine rpm levels. The 1- Some tyres can be filled with special type of heavy pump setting is illustrated with dashed line and 2- foam that creates additional counterweight.
Page 43: Lift Capacity
Avant 635 640 Lift capacity Lift capacity Lift capacity describes the load the loader can counterweights affect handle. Lift capacity is limited by the following main stability - Also the driver. Always factors: lower the load on the ground WARNING Stability of the loader before leaving the driver's seat.
Page 44 Lift capacity Avant 635 640 Rated Operating Capacity of the loader (ROC) Definitions Rated Operating Capacity (ROC) is calculated from Any illustration, chart, table or value of tipping the tipping load. Depending on use and type of load and the ROC table are valid only when the attachment, different ROC values can be used.
Page 45: Load Charts
The load indicator is an additional device that does not remove the In this Operator's Manual there is only a load chart for the pallet forks A36589. All Avant attachments responsibility of the operator to have their own Operator's Manual which include...
Page 46: Rated Operating Capacity
Lift capacity Avant 635 640 Load chart on the left side of the label: Rated operating capacity The graphic on the left side of the label shows the To easily determine how much load the loader can distance of the load in different positions of the handle safely, a table of the tipping load and a loader boom.
Page 47 Avant 635 640 Lift capacity Rated operating capacity label A461927 A, in kilograms The ROC table is valid, when:  The ground is firm and level  Loader is stationary or driven max 2 km/h, with smooth and slow control movements ...
Page 48: Tipping Load - Load Diagram
Lift capacity Avant 635 640 Tipping load - Load diagram With the diagram the load handling capability of the How to read the load diagram loader can be evaluated, according to the distance Tipping load with the loader frame in straight between the centre of gravity of the load and the position.
Page 49 Avant 635 640 Lift capacity How to estimate actual lifting capacity The actual tipping load and stability of the loader depends on many factors that you must consider when you handle heavy loads or attachments. Listed in the table below are many factors that influence the stability of the loader.
Page 50 Lift capacity Avant 635 640...
Page 51: Controls And Options Of The Loader
Avant 635 640 Controls and options of the Loader Controls and options of the Loader This chapter describes the location and function of the controls of the loader. The location and function of controls may be slightly different in different models and cab versions. See the following pages for information about the controls and the options of the loader.
Page 52: Overview Of Controls
Controls and options of the Loader Avant 635 640 Overview of controls Reference Page Dashboard Ignition switch Multi-function display Switches on the dashboard Indicator lights Control lever of boom and bucket Control levers Hand throttle lever Control switches on the panel...
Page 53 Avant 635 640 Controls and options of the Loader Switches on the panel The number of the additional control switches depends on which options have been installed on the loader. The position and order of switches may be different than shown in this chapter.
Page 54: Dashboard
Controls and options of the Loader Avant 635 640 Dashboard Switches and indicator lights The dashboard on the right side of the driver’s seat includes multi-function display, indicator lights and Switches on the dashboard: switches for controlling the loader. There are two...
Page 55: Multi-Function Display
If this light remains lit, turn battery disconnect switch to OFF and contact Avant service. Load sensor indicator Warning: Too heavy load is being lifted. See page 43.
Page 56 Controls and options of the Loader Avant 635 640 Control buttons of the display Push this button to return to the basic dashboard view. Push again cycle through available dashboard views. Push this button to show information messages in bar.
Page 57 Avant 635 640 Controls and options of the Loader Warning and information symbols, loader Warnings and symbols on the display Symbol Colour Remarks Safety alert symbol The display also shows information and warnings When this symbol appears, related to loader and its engine.
Page 58 Follow safe shutdown procedure before restart. After shut down wait until display shuts down completely. Turn ignition key on again. Contact Avant service if the warning message persists after recommended actions and restart of the loader. Warning and information messages on display...
Page 59 Avant 635 640 Controls and options of the Loader Menu and parameter texts on display Text on display: Explanation: Reset successful! Reset of message or value has been done successfully (for example service hours). Password incorrect! User typed in wrong password.
Page 60: Control Of Loader Boom, Auxiliary Hydraulics And Other Functions
Controls and options of the Loader Avant 635 640 Control of loader boom, auxiliary hydraulics and other functions Most of the functions of the loader are controlled with the controls at the right side of the operator: Boom and bucket movements, auxiliary hydraulics (attachments), auxiliary hydraulics pump speed etc., depending on loader model.
Page 61: Hand Throttle Lever
Avant 635 640 Controls and options of the Loader 3. Telescopic boom control lever 4. Hand throttle lever The telescopic boom makes many tasks easier, also The engine running speed is controlled with the hand those that do not involve lifting. You can, for throttle lever.
Page 62: Parking Brake Switch
Controls and options of the Loader Avant 635 640 5. Parking brake switch 6. Joystick - 8 function (option) The parking brake is activated when loader is The loader can be equipped, as an option, with an 8- switched off or when hydraulic pressure is otherwise function joystick.
Page 63: Control Lever Of Extra Hydraulics Outlet (Option)
Opticontrol replaces previously available ® Attachment control switch pack option for Avant loaders. 3. Anti-slip control switch (option) When the Opticontrol is installed to the loader, there ® An optional switch on the backside...
Page 64 Controls and options of the Loader Avant 635 640 1 and 2 pump setting Operating modes of Opticontrol ® Some attachments require high oil flow of hydraulic Check the Operator's Manual of the attachment to system to work in the most effective way. The loader see how to control each attachment.
Page 65: Power Take Off Switch (Pto)
Avant 635 640 Controls and options of the Loader Risk thrown objects, Attachment control switch pack for rear mounted attachments (option) increased noise and vibration, and equipment damage - Check WARNING The functions of the attachment control switch pack the maximum oil flow of each are also available for rear mounted attachments.
Page 66: Boom Floating
Some attachments have a floating to connect to the regular 12 V outlet of the loader. linkage built in the attachment You can also contact your Avant dealer to fit an coupling, making electric plug to the attachment multiconnector.
Page 67: Smooth Drive (Option)
Avant 635 640 Controls and options of the Loader Boom self-levelling (option) Smooth drive (option) Avant 635/640 loaders can be equipped with the Self-levelling is a system that smooth drive system which is a suspension system keeps the attachment tilted in for the boom.
Page 68: Counterweights
Controls and options of the Loader Avant 635 640 Risk of release of pressurised Risk of crushing and impact - hydraulic Deactivate Heavy counterweights increase pressure accumulator before risk of tipping over and loss of WARNING WARNING servicing loader that...
Page 69 Avant 635 640 Controls and options of the Loader Risk of loss of control of loader - Additional counterweights Too much counterweight can Additional counterweights can be installed to increase the stability of loader when handling heavy make the front of the loader too WARNING loads or attachments.
Page 70: Adding Or Removing Counterweights
Controls and options of the Loader Avant 635 640 Risk of moving or falling of the Adding or removing counterweights loader - Never lift or tie down When installing removing counterweights loader from side DANGER appropriate lifting equipment must be used.
Page 71: Trailer Coupling (Option)
Trailer light connector is available as an option for The loader can be equipped with a trailer coupling for Avant loaders. When towing a trailer with the loader towing of trailers. There are two types available: on public roads, the trailer lights must be used.
Page 72: Extra Auxiliary Hydraulics Outlets, Front And Rear (Option)
Controls and options of the Loader Avant 635 640 Reverse buzzer (option) Extra auxiliary hydraulics outlets, front and rear (option) A reverse buzzer gives an audible signal whenever reversing with the loader. The buzzer alarms others In addition to the standard auxiliary hydraulics outlet, of an approaching machine.
Page 73 Avant 635 640 Controls and options of the Loader Risk of loss of control - Heavy attachment on the rear carrier can cause the loader to tip WARNING rearwards. Keep an attachment mounted on the boom to maintain balance. Remove attachment from...
Page 74: Seat - Seat Belt And Seat Adjustments
Controls and options of the Loader Avant 635 640 Seat - Seat belt and seat adjustments Risk of falling from the loader Suspension seat and getting run over by loader - The suspension seat has the following adjustments: Never carry passengers. The...
Page 75: Suspension Seat (Cab Gt)
Avant 635 640 Controls and options of the Loader Suspension seat (Cab GT) Seat heater of air suspension seat The air suspension A suspension seat with textile cover is a standard for seat is equipped with the Cab GT. A vinyl cover is an option.
Page 76: Lights
Loaders that are fitted with the road traffic light kit panel. have a multi-function control switch fitted to the steering column. Avant work lights are LED modules. There are different brightness options, check your Avant dealer. Risk of burns - Never touch the lamp units. The front surface and...
Page 77 Warning lights on Cab GT (option) On Avant 635/640 loaders with Cab GT flashing warning lights that are integrated to the cab are available as an option. There are two lights at the front and two at the back.
Page 78: Cabs (Option)
Controls and options of the Loader Avant 635 640 Cabs (option) The Avant 635 640 can be equipped with an Standard and optional equipment on different enclosed operator's cab. The Cab GT can only be cab models ordered to new loaders, it cannot be retrofitted. The...
Page 79: Cab Safety
Avant 635 640 Controls and options of the Loader Risk of breaking glass - Do Cab Safety not drive with an open cab Make sure visibility from the cab is adequate. Keep door. The door may break CAUTION all window panels clean and clear of snow, ice, etc.
Page 80: Ventilation And Heating
Controls and options of the Loader Avant 635 640 Windscreen washer and wiper (Cab L) If used for heating, switch off the air circulation as soon as the On machines with Cab L the windscreen washer is temperature in the cab is sufficient, operated with a switch on the dashboard.
Page 81 Avant 635 640 Controls and options of the Loader Risk of collision - Never drive the loader when the visibility is poor. Do not drive unless basic CAUTION visibility directions achieved. Allow the loader to warm up properly. Air conditioning (Option for Cab GT) Cab GT can be equipped, as an option, with air conditioning (cooling).
Page 82 Controls and options of the Loader Avant 635 640...
Page 83: Operating Instructions
Avant 635 640 Operating instructions Operating instructions Always remember – safety first. Test all the functions of the loader at an open and safe place. Make sure that there are no persons in the operating area of the machine and the danger zone of the attachment.
Page 84: Starting The Loader
Operating instructions Avant 635 640 Starting the loader Risk of asphyxiation - Do not Before start start the loader in enclosed Before starting the engine do the daily checks, see space - Exhaust emissions can DANGER page 117. kill within minutes.
Page 85: To Start The Engine
Avant 635 640 Operating instructions Ignition key To start the engine Perform daily checks (see Maintenance & Service on page 111) Turn the battery disconnect switch to ON Sit on the driver's seat, adjust seat and fasten seat belt. The ignition key can be switched into the The loader will not start unless driver is seated.
Page 86 Operating instructions Avant 635 640 Risk of injury to bystanders - After starting: Avoid unintended movements of After starting the engine, complete the daily checks, see page 117. the attachment: WARNING  If the auxiliary hydraulics is Make sure that all the warning...
Page 87: Stopping The Engine (Safe Stopping Procedure)
Avant 635 640 Operating instructions Stopping the engine (Safe stopping procedure) Lower the boom completely down. Place attachment firmly on the ground, engage parking brake, stop the attachment (move auxiliary hydraulics control lever to neutral position, see page 60), set engine rpm to idle.
Page 88: Drive Control
Operating instructions Avant 635 640 Drive control Principle of operation Drive pedals Avant 635/640 loader is equipped with a hydrostatic Using the drive pedals: drive system. This based variable displacement hydraulic pump in the drive circuit that is proportionally controlled with the two drive pedals.
Page 89 Avant 635 640 Operating instructions Drive speed range selection switch OptiDrive® Avant 640 is equipped with The loader is equipped with the efficient Avant two-speed hydraulic drive OptiDrive hydraulic drive system as standard. ® motors. Drive speed range can be selected with the...
Page 90 Operating instructions Avant 635 640 X-lock (Cross-lock) and anti-slip Anti-slip valve (option) X-lock (Cross-lock) If the loader is equipped with the optional anti-slip The hydraulic drive circuit has a system that allows valve, there is an additional switch on the back of the the wheels on the left and right side of the loader to joystick.
Page 91: Operation In Cold Conditions
If the loader is used constantly in high ambient temperatures, hydraulic oil type and viscosity must be suitable for these conditions. Contact Avant service. In case the braking power of the Risk of fire and electric shock -...
Page 92 The engine block heater A410648 is intended to operate with electric supply of 220 - 240 V, 50-60 Hz AC power. Do not modify the cable or use transformers. Contact your Avant dealer service point information about other types of block heaters.
Page 93: Steering Of The Loader
Avant 635 640 Operating instructions Steering of the loader Risk of collision and crushing - Steering of the loader is controlled with the steering Stay and keep hands and feet wheel. The steering system is hydraulically powered. inside the safety frame. Always...
Page 94: Material Handling
ROPS. If you do not use Operator's Manual of an Avant attachment. seat belt, there is a risk of getting thrown off from the driver's seat Risk of tipping over - Loader can...
Page 95: In Case The Loader Tips Over
Avant 635 640 Operating instructions In case the loader tips over Avoid tipping over of the loader with careful operation and with the instructions given throughout this Operator's Manual. However, it is important to know what to do in case the loader tips over.
Page 96 Operating instructions Avant 635 640...
Page 97: Working With Attachments
 Make sure that the attachment is compatible with the loader: Avant 635 640 must be specifically listed in the Operator's Manual of the attachment. Contact your Avant dealer if necessary. Incompatible attachments can cause risks of injuries resulting from eg.
Page 98 Use only Avant attachments that have been designed for your loader model. Any attachment that is fitted to the loader must be designed to be used specifically with Avant 635 640, and this must be stated in the Operator's Manual of the attachment. The manufacturer of the attachment is responsible for evaluating the risks related to coupling the attachment and using it with this loader model.
Page 99: Coupling The Attachments
Avant 635 640 Working with attachments Coupling the attachments The attachment is mounted to the loader boom by using the quick coupling plate on the loader boom and the counterpart on the attachment. As standard, the attachment is coupled with two manually operated locking pins of the coupling plate.
Page 100 Working with attachments Avant 635 640 Step 3:  Lift the boom slightly – pull the boom control lever backward to lift the attachment just off the ground.  Turn the boom control lever left to turn the bottom section of the quick coupling plate of the loader onto the attachment.
Page 101: Connecting The Hydraulic Hoses Of The Attachment
Avant 635 640 Working with attachments Connecting the hydraulic hoses of the attachment Hydraulic hoses of the attachment are equipped with the multiconnector system, which connects all hoses at the same time. Risk of movement of the attachment and ejection of hydraulic oil - Never connect or disconnect quick couplings or other hydraulic components while the auxiliary hydraulics control lever is locked on or if the system is pressurized.
Page 102: Using The Auxiliary Hydraulics
Working with attachments Avant 635 640 Using the auxiliary hydraulics Auxiliary hydraulics (hydraulically operated attachments) are controlled with the lever on the control panel, or with the buttons on the 8 function joystick (see page 60). The locking position of the lever facilitates operation of the attachments that require constant oil flow (rotary broom, backhoe etc.).
Page 103: Releasing The Residual Pressure Of Hydraulic System
Avant 635 640 Working with attachments Releasing the residual pressure of hydraulic system Make sure that there is not pressure in the hydraulic system that could cause danger during service operations. To release the pressure in hydraulic system: Lower the boom down completely and place attachment firmly on the ground...
Page 104: Coupling Adapters
Avant 635 640 Coupling adapters Avant offers coupling adapters to help the use of some specific attachments. See the Operator's Manual of each attachment if an adapter can be used. All adapter types are locked to the quick coupling plate of the loader. The adapters have similar quick coupling system to lock the attachment onto the adapter and loader.
Page 105 Avant 635 640 Working with attachments Rotating adapter A424406 The rotating adapter is intended for same kind of work as the tilting adapter. The fully rotating adapter makes it possible to turn the attachment fully upside down. This can be helpful in levelling work.
Page 106: Storage, Transport, Tie Down And Lifting
Storage, Transport, Tie down and Lifting Avant 635 640 Storage, Transport, Tie down and Lifting Before transporting or lifting the loader: Tie down points  Mount the articulation frame lock, see page 115 The loader must be tied down securely if transporting ...
Page 107 If To protect the loader during transport, transport trailer is loaded in this way, the cover is available. Contact your Avant dealer. trailer can cause loss of control of the towing vehicle. Load on the trailer coupling of the towing vehicle must never be negative.
Page 108 Storage, Transport, Tie down and Lifting Avant 635 640 Consider all additional counterweights, attachments, Tie down options and other equipment when estimating the load on the trailer. Additional counterweights, among other Optional equipment for frequent trailer transport options and equipment, may make the loader heavier than indicated in the identification plate.
Page 109: Storage
Eyelets on extra trouble-free use of the loader. side counterweights  It is recommended to have the periodic service installing or removing the side made before storage. Contact Avant service. counterweight only. Never attempt  Clean the loader carefully. lift loader from ...
Page 110: Lifting Of The Loader
Storage, Transport, Tie down and Lifting Avant 635 640 Lifting of the loader The following picture shows the principle of lifting a loader with the ROPS frame using four lifting straps: Lifting a loader with ROPS: When lifting a loader...
Page 111: Service And Maintenance
Before working on the electric system or battery, disconnect the battery.  Contact your Avant dealer or Avant service for spare parts or more information about any service procedure. Risk of burns, cuts, and sprayed oil or dirt - Use...
Page 112 Service and maintenance Avant 635 640 High-pressure ejection of fluid may penetrate skin and cause serious injuries - Never handle pressurised components. Before handling hydraulic components, make sure that the hydraulic system of the attachment and the loader are completely de- DANGER pressurised.
Page 113: Engine Compartment And Storage Spaces On The Loader
Avant 635 640 Service and maintenance Risk of burns - Allow loader to Consider the environment cool before opening covers. Engine parts, exhaust system, and The fluids in the machine are WARNING harmful environment. hydraulic parts may be extremely Never allow fluids to leak in the hot after use.
Page 114 Service and maintenance Avant 635 640 Storage inside cab There are storage areas around the driver's seat and elsewhere in the cab. Place objects so that they will not interfere with controls of the loader and will not block visibility.
Page 115: Installing Of Service Support And Frame Lock
Avant 635 640 Service and maintenance Service support in place Installing of service support and frame lock Installing boom service support: The red service support of the boom lift cylinder is located at the tip of the boom, behind the attachment coupling plate.
Page 116: Daily Inspections And Periodic Service Schedule
Follow the recommended service schedule. Keep records of services made. Contact Avant service if you are unsure about any of the service procedures, or if you need spare parts.
Page 117 Avant 635 640 Service and maintenance Daily maintenance and inspections  Do a walk-around check of the loader before each working shift. Complete the tasks listed below daily before starting to use the loader and after each 10 working hours.
Page 118: Periodic Service And Maintenance
In addition to the items listed in the daily and weekly inspections, the following service procedures must be completed periodically. Some of the listed service operations require specialized skills, equipment, and knowledge, and they are intended only for professional technicians. Contact your Avant dealer to locate your nearest Avant service. After every 400 hours of use or...
Page 119 Risk of injuries caused by incorrect parts or service - Use only original spare parts supplied by Avant. Use of wrong parts may cause serious personal injuries related to damage of the loader or premature wear of its components. Always use original Avant WARNING parts that are specifically designed for and intended to be used with this loader model.
Page 120: Daily And Routine Maintenance Procedures
Service and maintenance Avant 635 640 Daily and routine maintenance procedures 1. Add fuel Use only clean fuel and take care when refueling the loader to avoid dirt Check fuel level from fuel gauge in dashboard and fill and water from entering the fuel tank.
Page 121 Do not use the loader if you see damaged, bent, heavily corroded, or deformed metal B. Clean the interior of the loader parts. Contact Avant service for service, if necessary. Clean cab and interior with appropriate mild detergent and cleaning supplies. Keep the cab and ...
Page 122 Service and maintenance Avant 635 640 Never spray in the engine compartment with a If the optional air conditioning system is installed, pressure washer. Do not pour water on the engine. there is a cooling fan at the rear of the cab.
Page 123 Avant 635 640 Service and maintenance To remove the cover completely, unplug the electric 4. Add grease to the lubricating cable at the upper left corner. points Greasing of the pivot points is essential to avoid wear of joints. Lack...
Page 124 Service and maintenance Avant 635 640 B. Front frame and telescopic boom Greasing points are listed in the following table. Reference Number of points 1. Articulation joint Left side of loader 2. Steering cylinder Both ends of steering cylinder, near articulation joint 3.
Page 125 All pivot pins must be in good condition and secured in place. taken to Avant service for checking. Make sure that the pivot pins are not worn and It is not allowed to repair the ROPS there is no excessive slack in the joints.
Page 126: Check Wheels
Make sure that replacement hoses and fittings meet the ratings and specifications of the original hoses, and are compatible with the fittings on the loader. Contact Avant service when hoses or fittings need to be replaced. Hydraulic fittings of drive motors and hoses of...
Page 127: Check Hydraulic Oil Level
If the locking system do not work is hot. correctly contact Avant service. Never overfill the hydraulic oil tank. Oil can flow over, Use the hydraulic locking system periodically even if or foam inside tank.
Page 128 Service and maintenance Avant 635 640 Check cab air filter Now you can see the filter element inside the slot. If the loader is equipped with an enclosed cab A replaceable cab air filter can be changed from outside the cab, under the door on the left side. The cartridge should be checked and changed more often when operating the loader in dusty conditions.
Page 129: Engine Related Inspections And Routine Maintenance
The oil dipstick (1) is on the right side of the engine. routine maintenance The oil filler opening (2) is on top of the engine. Avant 635/640 loaders are equipped with a Kubota diesel engine. Service and maintenance instructions for the engine can be found in the Kubota Operator’s Manual supplied with the loader.
Page 130: Check Engine Coolant Level
If there is frequent need to add coolant, there may be a leak or other damage in the engine. Contact Avant service. Check the antifreeze properties of the coolant annually. Change engine coolant after every two years as the anti-corrosion properties of the coolant diminish over time.
Page 131 Avant 635 640 Service and maintenance remove Check engine air filter element inner air filter element. It is intended to prevent Check, and when necessary, clean or replace the air debris from entering the filter element. Replace filter after 400 hours of use or...
Page 132 Service and maintenance Avant 635 640 Make sure that the cables in the engine compartment cannot chafe against any sharp edges. Correct the routing and fastening of cables, if necessary. Replace damaged cables. Check how the cables are routed through the articulation joint of the loader.
Page 133: Inspections After Starting The Loader
Avant 635 640 Service and maintenance Inspections after starting the loader Test drive control and steering Test the movements of boom  Check operation of pedals and steering. Pedals must move freely and not get stuck or feel stiff. ...
Page 134: If You Add Or Remove Counterweights
Avant rear Loosen the bolt of one end of the load sensor weights (+/- 58 kg).
Page 135: Periodic Service
Operator's Manual in addition to the service tasks listed in this section of this Operator's Hydraulic oil type Manual. Always use correct type of clean, high-quality Contact your Avant dealer to locate your nearest hydraulic with extra lubrication additives.
Page 136 Service and maintenance Avant 635 640 5. Change hydraulic oil filters The fuel lines are connected to the main filter (2) through a pre filter (1). The fuel pre filter is located on Hydraulic oil return filter: the left hand side of the engine, near the fuel tank.
Page 137 Checking the and other hydraulic components performance of the battery requires a suitable testing tool, contact your Avant service. Check the positioning and routing of the hydraulic If necessary, replace the battery with a battery that is hoses.
Page 138 There are two pressure relief valves at the main the hydrostatic drive system and its variable speed control valve of the boom and auxiliary hydraulics. pump must be carried out by Avant service. The auxiliary hydraulics pressure can be measured from the multiconnector, but the boom pressure must...
Page 139 If you suspect that the pulling force of A hydraulic pump that is integrated in the housing of the loader has decreased contact your nearest Avant the drive pump circulates oil through the closed loop service. Also the power control valve, the hydraulic hydrostatic drive system.
Page 140 1 and 2, replace all slide Contact your Avant service if you suspect abnormal pads. engine vibration or noise. The cooling fan and parts related to the cooling To replace slide pads 3 and 4 the system have a significant effect on the engine noise.
Page 141 Avant 635 640 Service and maintenance  Check the safety frame, seat, Check that the boom control lever returns to its seat belt, lamps, and other safety center position when released. Check that the lever feels firm and there is no play in its related equipment mechanism.
Page 142 Contact Avant service if there is play in the articulation joint. Wear of the articulation joint is usually caused by lack of lubrication. Keep the loader clean and ensure adequate lubrication of the articulation joint.
Page 143 Service and maintenance Filters - list of filters To receive regular service parts easily, you can order the following service packages from your dealer. To order parts please contact your Avant dealer or authorised service. Filter kit A465386 Air filter...
Page 144: Electric System & Fuses
The electric cables or other switch (Avant 640) electric parts may be damaged causing a risk of fire. Electric cables may be damaged. Contact Avant 12 V outlet service, if necessary. If any of fuse or relay needs to be replaced, make ECU diagnostics sure to always use correct type of spare parts.
Page 145 Remove the battery Relays under the front panel: completely from the loader. Then contact authorized Avant service for thorough inspection of the electric systems of the loader. Fuses in Cab GT There is an additional fuse box in Cab GT, near the seat belt buckle.
Page 146 Service and maintenance Avant 635 640 Press the test button (2). LED11 (1) is green Vehicle Power Distribution Unit when the main fuse is intact and the PDU receives electric supply. An electric power distribution unit (PDU) is located at the right side of the engine compartment.
Page 147: Jump Start And Auxiliary Power
Charge the battery with an external give or receive power for jump charger whenever it is possible. start. The vehicle can get severely damaged when giving or receiving auxiliary starting power. Avant takes no responsibility of damages caused by giving or receiving auxiliary power.
Page 148 Service and maintenance Avant 635 640 Risk of electric shock, sparks, End of life disposal fire, and burns - Always use Recycle and dispose the loader properly when the good quality jump start cables CAUTION loader is at the end of its useful life cycle. Drain and that have good clamps and collect all fluids to applicable containers.
Page 149 Avant 635 640...
Page 150: Troubleshooting
Troubleshooting Avant 635 640 Troubleshooting Listed below are possible causes for typical problems. Further engine related causes can be found in the Operator's Manual of the engine. In case there is a trouble with the operation of the machine, check both troubleshooting lists and if the problem is not solved, contact your nearest service point.
Page 151 Avant 635 640 Troubleshooting Problem Possible cause Remedy Engine overheats Check coolant pressure reservoir cap for tightness. Check cooling Leaking cooling system system and all hoses and connections. Attachment hoses are not coupled or the multiconnector is Make sure that the multiconnector is properly connected.
Page 152 Troubleshooting Avant 635 640...
Page 153: Maintenance Log
Avant 635 640 Maintenance log Maintenance log 1. Customer 2. Loader model Serial number 3. Date of delivery Date of service Operating Serviced by: Remarks dd / mm / yyyy hours Stamp/signature _____/ 50 h ___/___/_____ _____/ 450 h ___/___/_____...
Page 154 Avant 635 640 Notes...
Page 155 Avant 635 640 Notes...
Page 156: Index
Availability of options • 6 Drive speed range selection visually • 122, 126 switch • 54, 58, 90 Avant warranty • 7 Check the general condition of the loader • 122 Check the safety frame, seat, Electric 12 V outlet • 53, 67 Ballasted tyres •...
Page 157 Avant 635 640 Falling objects protection Lift capacity • 16, 45, 50, 56, Rated operating capacity • 36, system (FOPS) • 18 38, 48 Filters - list of filters • 144 Lifting of the loader • 111 Recommended use of the loader •...
Page 158 Avant 635 640 Telescopic boom control lever • 62 Test and check engine for vibrations, noise, and general performance • 141 Test drive control and steering • 134 Test parking brake • 134 Test the movements of boom • Tie down options • 109 Tie down points •...
Page 159 Avant 635 640 635/640 EC DECLARATION OF CONFORMITY Manufacturer: Avant Tecno Oy Ylötie 1, 33470 Ylöjärvi, Finland Technical Construction File Location: Same as Manufacturer We hereby declare that the machine detailed in this document conforms to the following EC Directives...

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