ALTRAD BHB Hydraulic Breakers User Manual

: June 10, 2024
: ALTRAD

**ALTRAD BHB Hydraulic Breakers User Manual

**

How To Use This Manual

This manual has been written to help you operate and service the Altrad Belle BHB Hydraulic Breaker safely. This manual is intended for dealers and operators of the Altrad Belle BHB Hydraulic Breaker.

Foreword
The ‘Machine Description’ section helps you to familiarise yourself with the machine’s layout, controls and Decals. The ‘Safety Instructions’ sections explain how to use the machine to ensure your safety and the safety of the general public. The ‘Operating Instructions’ section helps you with the setting up and use of the machine. The ‘Service & Maintenance’ section is to help you with the general maintenance and servicing of your machine. The ‘Environment’ section gives instructions on how to handle the recycling of discarded apparatus in an environmentally friendly way. The ‘Trouble Shooting Guide’ helps you if you have a problem with your machine. The ‘Warranty’ section details the nature of the warranty cover and claims procedure.

Directives with regard to the notations.
Text in this manual to which special attention must be paid are shown in the following way:

CAUTION
The product can be at risk. The machine or yourself can be damaged or injured if procedures are not CAUTION carried out in the correct way

WARNING The life of the operator can be at risk.

WARNING

WARNING
Before you operate or carry out any maintenance on this machine YOU MUST READ and STUDY this manual.

Machine Description

Serial Plate
A. Maximum permitted Hydraulic Oil Flow.
B. Breaker Model.
C. Maximum permitted Hydraulic Pressure.
D. Serial Number.
E. Year of Manufacture.

Decals
A. Model Decal
This Decal shows the Model Name of the Breker E.g BHB 19
B. Noise Decal
This Decal shows the Noise Level of the machine.
C. CE Decal
This Decal indicates whether the machine conforms to CE Regulations. The Decal will not be found on USA machines.

Machine Components

Trigger
Trigger Lock
Head
Accumulator
Oil In (Pt)
Oil Return (T**) (Restrictor – Please see ‘Technical Data’ section)
Main Body
Nose Section
‘Steel’ Latch 10. Steel

• P = Pressure
• T = Tank

Technical Data

Model| BHB12| BHB19| BHB19 USA| BHB23| BHB23 UC| BHB25X
---|---|---|---|---|---|---
Hydraulic Flowrate (Ltrs/Min)| 20| 20| 20| 20| 20| 20
Restrictor| Open| Open| Open| Open| Open| Open
Weight (Kg)| 14| 19| 19| 23| 23| 25
Working Pressure (Bar)| 70| –| 90| 90| –| 110| 90| –| 110| 90 – 110| 90| –| 110| 90| –| 110
Max Pressure (Bar)| 160| 160| 160| 160| 160| 160
Max. Return Line Pressure (Bar)| 10| 10| 10| 10| 10| 10
EHTMA Category| C| C| C| C| C| C
Hydraulic Connections| 1/2 BSP| 1/2 BSP| 1/2 JIC| 1/2 BSP| 1/2 JIC| 1/2 BSP
Flat Faced, Quick Release, Non-Drip Couplings
Hydraulic Oil Type- Below 30ºc- Above 30ºc|
ISO VG T32
ISO VG T46
Blow Frequency (Blows/Min)| 2400| 1600| 1600| 1600| 1600| 1600
Breaking Force (Joules)| 55| 65| 65| 65| 65| 55
Accumulator Gas Pressure (Bar)| 40| 40| 40| 40| 40| 40
Steel Size (mm)| 22 x 82| 25 x 108| 32 x 152| 25 x 108| 28 x 160| 32 x 160
Recommended Power Pack| | | | | | | | | Midi| 20/140| | | | | | |
Prelimenary Vibration – Midi (m/s2)| 16.08| 11.97| 11.97| 11.97| 11.97| 6.5
Noise Level (dB(A))| 105| 107| 107| 107| 108| 108
Model| BHB25| BHB27 | BHB27X | **BHB30 USA *
---|---|---|---|---
Hydraulic Flowrate (Ltrs/Min)| 20| 20| 30| 20| 30| 20| 30**
Restrictor| 3.8| 3.4| Open| 3.4| Open| 3.8| Open
Weight (Kg)| 28| 27| 27| 30| 30| 31.5
Working Pressure (Bar)| 105| –| 125| 105| –| 125| 105| –| 125| 105| –| 125
Max Pressure (Bar)| 160| 160| 160| 160
Max. Return Line Pressure (Bar)| 20| 20| 20| 20| 20
EHTMA Category| C| C| D| C| D| C| D
Hydraulic Connections| 1/2 BSP| 1/2 BSP| 1/2 BSP| 1/2 JIC| 1/2 JIC
Flat Faced, Quick Release, Non-Drip Couplings
Hydraulic Oil Type- Below 30ºc- Above 30ºc|
ISO VG T32
ISO VG T46
Blow Frequency (Blows/Min)| 1300| 1300| 2150| 1300| 2150| 1150| 1850
Breaking Force (Joules)| 85| 85| 85| 65| 65
Accumulator Gas Pressure (Bar)| 50| 50| 50| 50| 50
Steel Size (mm)| 32 x 160| 32 x 160| 32 x 160| 32 x 152| 32 x 152
Recommended Power Pack| Midi20/140| Midi20/140| Major30/140| Midi20/140| Major30/140| Midi20/140| Major30/140
Prelimenary Vibration – Midi (m/s2)| 11.1| 11.8| 18.61| 8.2| 6.8| 10.75| 16.06
Noise Level (dB(A))| 108| 108| 108| 108| 108

Matching The Breaker To The Power Pack

Restrictor/Fitting Identification
The tank restrictors/Fittings can be identified by using this simple procedure

Check your Breaker and identify the P and T side of the body by looking for a letter stamp on the large bung. This can be found on the side of the Breaker as shown in the diagram. This stamp also corresponds to the Restrictor / Fitting on the same side of the Breaker

For example: In the image the bung on the left hand side of the Breaker is clearly stamped with the letter P. so the fitting on the left hand side will be the pressure Line and the right hand side will be the Tank / Return Line.

P = Pressure side of the Breaker
T = Tank / Return side of the Breaker

WARNING
You must only ever change the TANK Line Restrictor / Fitting as you may cause harm to your Breaker and Power Pack if the PRESSURE Line Fitting is changed.

Restrictors / Fittings

Oil Flow Rate| EHTMA Category| Part Number| Restrictor Size| Notes
---|---|---|---|---
20 Ltrs/Min| C| 971/99061| 3.4mm| Delivered with the Breaker (Loose)
30 Ltrs/Min| D| 971/99006| No Restrictor (Open)| Fitted onto the Breaker

CAUTION
Connecting the breaker to a higher oil flow rate may caude dameged to the Power pack or the the Breaker
DO NOT attempt to change the Restrictor immediately after use as the Hydraulic Oil will be hot.

Replacing The Restrictor

Disconnect the Breaker from the Power Pack.
Fix the Breaker in vertical position to a vice or in another way so that the Breaker is fixed. Do not place it on the Nose Section because the Breaker can tilt.
Remove the Tank Line Hose, leaving the Restrictor / Fitting in the Breaker body. Remember to have an oil pan ready to take the oil spill from the Breaker. Drain the oil from the T-Hose into the oil pan.
Loosen the Restrictor on the Breaker. Remember to have an oil pan ready to take the oil spill from the Breaker.
Remove the Seal from the old Fitting / Restrictor. Fit the new Restrictor using the existing Seal, ensuring that the internal Allen Key head in the Restrictor is fitted into the Breaker body first. Tighten to a Torque Setting of 90±2 Nm.
Refit the Hose and tighten to a Torque Setting of 50±2 Nm.
Reconnect the Breaker to Power Pack and check it for leakage.

NOTE:- When the Breaker is modified to another oil flow rate, do not connect a Power Pack with higher oil flow rate. We recommend that the EHTMA Label on the Breaker is changed to Category C (Green) (Supplied loose with Breaker)), if Restrictor (971/99061) is fitted. Section A of the Serial Plate (See ‘Machine Description’ section) should also be amended.

Safety Instructions

WARNING
To reduce risk of serious injury or death to yourself or others, read these safety instructions before operating the machine. Post these safety instructions at work locations, provide copies to employees, and make sure that everyone reads the safety instructions before operating or servicing the machine. Follow all safety instructions given in this manual. All the safety instructions conform to the applicable laws and directives of the European Union. You should also respect any additional national/regional directives. In countries outside the European Union, the valid local statutes and regulations shall apply. Any additional regional laws and regulations must be observed.

Machine and Tool operating Hazards

Sudden or unexpected movement of the machine may occur during operating, which may cause injuries. Furthermore, losing your bal ance or slipping may cause injury. To reduce risks:

Make sure that you always keep a stable position with your feet as far apart as the width of your shoulders, and keeping your body weight balanced out.
Do not start the machine when it is lying on the ground.
Make sure that the handles are clean and free from grease and oil

Unintentional start of the machine may cause injury!

Keep your hands away from the start and stop device until you are ready to start work.

The working tool is exposed to heavy strains when the machine is used and after a certain amount of use the tool may break due to fatigue. If the tool breaks, there may be sudden or strong movements. Such sudden or strong movements may cause serious injury.

Make sure that you always keep a stable position with your feet as far apart as the width of your shoulders, and keeping your body weight balanced.
Keep your hands and feet away from the working tool.
Do not ‘ride’ on the machine with one leg over the handle, since you could be seriously injured if the tool were to break suddenly.
Check regularly for wear to the working tool, and check whether there are any signs of damage or visible cracks.

An incorrect dimension of the working tool’s shank can result in the working tool being lost or slipping out during operation. A working tool that is lost or slips out can cause personal injury

Before inserting the work tool, make sure that the shank’s dimensions are correct for use in the machine.
Working tools without a collar may not be used.

If the tool retainer on the machine is not in a locked position, the tool can be ejected with force, which can cause personal injury.

Once the working tool has been mounted and locked, the locking function must be checked by pulling the working tool outwards forcefully.
Make sure that the tool is fully inserted and the tool retainer is in the locked position before the machine is started.
Never point the working tool at yourself or anyone else.

Starting the machine while changing the working tool may cause personal injury.

A hydraulic hose that comes loose can lash around and cause personal injury or death. To reduce risks:

Safety Instructions

Hydraulic Oil and Lubrication Hazards

Thin jets of hydraulic oil under high pressure can penetrate the skin and cause permanent damage.

Never use your hands when searching for oil leaks.
Keep your face away from any possible leaks.
Immediately seek medical attention if hydraulic oil has penetrated the skin.

Spilled hydraulic oil can cause accidents by causing slippery conditions and will also harm the environment.

Handle the hydraulic oil with care.
Take care of all spilled oil and handle it according to your local safety and environmental regulations.

Hot hydraulic oil can cause burns.

Never dismount the machine when the hydraulic oil is hot.

Hydraulic oil can cause eczema when it comes in contact with the skin.

Avoid getting hydraulic oil on your hands.
Always use protective gloves when working with hydraulic oil

Grease can cause eczema when it comes in contact with the skin.

Avoid getting grease on your hands.

Explosion and Fire Hazard

Breaking, drilling and working with certain materials can cause sparks, which may ignite explosive gases and cause explosions. Explosions may cause serious injury or death. To reduce such risk of explosion:

Never operate the machine in any explosive environment.
Make sure that there are no undetected sources of gas.

Electrical/Concealed Object Hazards

The machine is not electrically insulated. If the machine comes into contact with electricity, serious injuries or death may result.

To reduce the risk of such injury or death, never operate the machine near any electric wire or other source of electricity.
Make sure that there are no concealed wires or other sources of electricity.

During breaking, concealed wires and pipes constitute a danger that can result in serious injury.

Before you start breaking, check the composition of the material you are to work on.
Watch out for concealed cables and pipes e.g. electricity, telephone, water, gas and sewage lines etc.

Projectile Hazard

During breaking, drilling or hammering, splinters or other particles from the worked material may become projectiles and cause personal injury by striking the operator or other persons.

Use approved personal protective equipment, including impact resistant safety glasses with side protection, to reduce the risk of being injured by a projectile.

Noise Hazard

High sound levels may cause permanent hearing loss.

Use hearing protection in accordance with occupational health and safety regulations.

Silica/Dust Hazard

Use proper engineering controls to reduce the amount of silica in the air and the build-up of dust on equipment and surfaces. Examples of such controls include: Exhaust ventilation and dust collection systems, water sprays, and wet drilling. Make sure that controls are properly installed and maintained.
Wear, maintain, and correctly use approved particulate respirators when engineering controls alone are not adequate to reduce exposure below permissible levels.
Wear washable or disposable protective clothes at the worksite; shower and change into clean clothes before leaving the worksite to reduce exposure of silica to yourself, other persons, cars, homes, and other areas.
Do not eat, drink, or use tobacco products in areas where there is dust containing crystalline silica.
Wash your hands and face before eating, drinking, or using tobacco products outside of the exposure area.
Work with your employer to reduce silica exposure at your worksite.

Some dust, fumes or other airborne material created during use of the machine may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of such chemicals are:

Crystalline silica and cement and other masonry products.
Arsenic and chromium from chemically-treated rubber.
Lead from lead based paints.

To reduce your exposure to these chemicals, work in a well ventilated area, and work with approved safety equipment, such as dust.

Vibration Hazard

Normal and proper use of the machine exposes the operator to vibration. Regular and frequent exposure to vibration may cause, including debilitating and/or permanent injuries or disorders that may develop gradually over periods of weeks, months, or years. Such injury or disorder may include damage to the blood circulatory system, damage to the nervous system, damage to joints, and possibly damage to other body structures.

The following may help to reduce exposure to vibration for the operator:

Let the tool do the job. Use a minimum hand grip consistent with proper control and safe operation.
When the impact mechanism is activated, the only body contact with the machine you should have is your hands on the handles. Avoid any other contact, e.g. supporting any part of the body against the machine or leaning onto the machine trying to increase the feed force. It is also important not to keep the trigger engaged while extracting the tool from the broken work surface.
Make sure that the inserted tool is wellmaintained (including sharpness, if a cutting tool), not worn out, and of the proper size. Working tools that are not well-maintained, or that are worn out, or that are not of the proper size result in longer time to complete a task (and a longer period of exposure to vibration) and may result in or contribute to higher levels of vibration exposure. of the increased vibrations.
Comply with the recommended hydraulic pressure when operating the machine. Either higher or lower hydraulic pressure has the potential of resulting in higher levels of vibration.
Do not grab, hold or touch the inserted tool when using the machine.

NOTE!:- See the Noise and Vibration Levels for the machine, which can be found in the Technical Data section

General Safety

Machines and accessories must only be used for their intended purpose.
Release the start and stop device immediately in all cases of power supply interruption.
Always inspect the equipment prior to use. Do not use the equipment if you suspect that it is damaged.
Always use your common sense and good judgment.
Pay attention and look at what you are doing. reactions or judgment.
Participate in safety and training courses.
Never strike or abuse any equipment.
Keep the machine and tools in a safe place, out of the reach of children and locked up.
Make sure that all the attached and related equipment is properly maintained.
Decals bearing important information regarding personal safety and care of the machine are supplied with every machine.
Make sure that the decals are always legible.
New decals can be ordered from the Spare Parts list.
Make sure that no unauthorized personnel trespass into the working zone.
Keep the workplace clean and free from foreign objects.
Never point a hydraulic hose at yourself or anyone else.

PPE (Personal Protective Equipment)

Always use approved protective equipment. Operators and all other persons in the working area must wear protective equipment, including at a minimum:

Protective helmet.
Safety Goggles,
Gloves,
Ear Defenders,
Dust Mask
Steel Toe capped footwear

Recommended Hydraulic Oil

In order to protect the environment, Altrad Belle recommends the use of biologically degradable hydraulic oil.

Viscosity (preferred) 20-40 cSt.
Viscosity (permitted) 15-100 cSt.
Viscosity index Min. 100.

Standard mineral or synthetic oil can be used. When the breaker is used continuously, the oil temperature will stabilise at a level which is called the working temperature. This will, depending on the type of work and the cooling capacity of the hydraulic system, be be At working temperature, the oil viscosity must lie within the preferred limits. The viscosity index indicates the connection between vis cosity and temperature. This is the reason why a high viscosity is preferred, because then the oil can be used within a wider tempera ture range. The breaker shall not be used, if oil viscosity fails to remain within the permitted area, or if the working temperature of the oil

Storage

Disconnect the breaker’s hoses from the power source. See “Start and Stop Procedure” section
Make sure that the breaker is properly cleaned before storage. disassembled, the striking piston must be pressed upwards with the hoses mounted but the power pack unactivated.
Always store the machine in a dry place.

Environment

A used machine must be treated and disposed of in such a way that the greatest possible portion of the (21 material can be recycled and any negative influence on the environment is kept as low as possible.

NOTE:- Before a used machine is scrapped, it must be emptied and cleaned from all hydraulic oil. Remaining hydraulic oil must be deposited.

Pre-Start Checks

Pre-Start Checks
The following checks should be made each time you start to use the breaker. All these checks concern the serviceability of the breaker. Some concern your safety:

Clean all Decals. Replace any that are missing or cannot be read. These can be ordered from the Spare Parts list.
Inspect the hoses generally for signs of damage.
Inspect the working tool for wear and damage.
Do not use an excessively wom or damaged tool.
Connect the tool.
Ensure that the hydraulic couplings are clean and fully serviceable.
Do not invert the breaker without first isolating it from the power source. The working tool might be fired out while connecting it, if the breaker is connected to the power source.
Ensure that any power source you plan to use is compatible with the breaker model used (see the “Technical data” section). Altrad Belle recommends using an LED oil flow divider, if the flow from the power source can exceed the maximum allowed oil flow.

Start and Stop Procedure

Starting

Check that the Steel’ is in good condition and pressed fully home in the nose of the breaker.
Check that the latch is locked, so that the Steel’ does not fall out.
Remove the protective caps from the quick-release couplings.
Clean the quick-release couplings if needed and connect the tail-hoses to the extension hoses of the power unit.
Place the breaker at a right angle on the material to be broken and activate the trigger lever.

Stnpoing

Release the trigger. Press the breaker against the surface, until the breaker has stopped completely.
Stop the power source.
Disconnect the hoses and fit the protective caps to the quick-release couplings.

Operating Instructions

To reduce the risk of serious injury or death to yourself or others, before operating the machine, read the Safety instructions section found on the previous pages of this booklet.

Design and Function

The Altrad Belle BHB Range of handheld Hydraulic Breakers are sturdy and reliable breakers designed for working together with Altrad Belle Hydraulic Power Packs.Breakers are designed for various jobs from light brickwork and asphalt jobs to heavy duty jobs in reinforced concrete. connection to the Altrad Belle Hydraulic Power Packs.

Choosing the correct hydraulic breaker for a task
It is important to choose the correct size of hydraulic breaker for the work to be performed. A hydraulic breaker that is too small means that the work will take longer. A breaker that is too big means that there must be frequent repositioning, which is unnecessarily tiring for the operator. A simple rule for choosing the correct size of hydraulic breaker is that a normal sized piece of broken material should be removed from

If it takes less than 10 seconds a smaller hydraulic breaker should be selected.
If it takes more than 20 seconds a larger hydraulic breaker should be selected.

Installation

Quick-release couplings
The original Altrad Belle hydraulic hoses are fitted with Flat-Face quick- release couplings that are strong and easy to clean. The quick-release couplings are fitted so that the male connection supplies oil and the female connection receives oil.

Fitting and Removina the Breaker ‘Steel’
Whenever fitting/removing the ‘Steel’, the following instructions must be observed:

To prevent an accidental start, switch off the oil supply. Bleed the machine by pressing the start/stop device. Disconnect the machine from the power source.
Remove the ‘Steer by swinging the latch (C) fully down (Image A).
Fit a Steel’ by ensuring that the latch (C) is fully down. Then insert the Steel’ in the breaker as shown and swing the latch (C) fully up (Image B).

Checking for wear

Using a working tool with a worn out shank leads to increased machine vibrations. To avoid increased vibrations, check the shank for wear before the working tool is fitted in the machine.
Use the checking gauge that corresponds to the working tool’s shank dimension. If the gauge’s hole (2) can be pushed down on the working tool’s shank, this means that the shank is worn out and the working tool should be replaced.
* Note:- The Checking Gauge is not supplied with the machine.

Operating Instructions

Choosing working tool
A correct working tool is a prerequisite for good operation. To avoid unnecessary machine damage. it is important to choose working tools of a high quality.

The narrow chisel should be used for demolition and cutting work in concrete and other types of hard material.

The moll point should only be used for creating holes in concrete and other types of hard material.

The wide chisel should be used in soft materials e.g. asphalt and frozen ground.

Always use a sharp tool to be able to work effectively. A worn out tool causes increased vibrations and the operation will take longer.

Operating Instructions

STARTING A CUT

Stand steady and make sure that your feet and hands are at a safe distance from the working Breaker.
Press the machine against the surface of the workpiece before starting.
Adjust the breaking distance (A) so that the working Breaker does not get stuck.
Do not try to cut too big a bite.
Trying to loosen a working Breaker that is stuck will expose the operator to unnecessary vibrations.

OPERATION

Let the machine do the work; do not press too hard. The vibration-absorbing handle must absolutely not be pressed all the way down to the base.
Hydraulic breakers with vibration-absorbing handles: The feed force should be adapted so that the handles are pressed down “half way”. The best vibration damping and breaking effect is achieved at this position.
Avoid working in extremely hard materials e.g. granite and reinforcing iron (reinforcement bar), which would cause substantial vibrations.
Any form of idling, operating without working tool or operating without adapted feed force must be avoided.
When no feed force is applied, the start and stop device must not be activated.
Check regularly that the machine is well lubricated.

WHEN TAKING A BREAK

During all breaks you must put the machine away so that there is no risk that it will be unintentionally started.
In the event of a longer break or when leaving the workplace: Switch off the hydraulic oil supply and then bleed the machine by activating the start and stop device.

EHTMA – Code Of Practice

EUROPEAN HYDRAULIC TOOL MANUFACTURERS ASSOCIATION CODE OF PRACTICE – HYDRAULIC BREAKERS

Before Starting. Refer to manufacturer’s operating instructions

Classification| Colour Code.| Flow l/min| Max pressure Bar.
---|---|---|---
A| Yellow| 5.5 – 6.5| 180
B| Blue| 13.5 – 16.5| 172
C| Green| 18.0 – 22.0| 138
D| Brown| 27.0 – 33.0| 138
E| Red| 36.0 – 44.0| 138
F| Black| 45.0 – 55.0| 138
G| Orange| 54.0 – 66.0| 138
Z| Grey| 9.0 – 11.0| 180

Service and Maintenance

Use only authorized parts. Any damage or malfunction caused by unauthorized parts will not be covered by Warranty or Product Liability.
Change damaged parts immediately.
Replace worn components in good time.
Always clean the hose couplings before mounting or dismounting.
Always plug hoses and nipples with clean and tight plugs when dismounting.
When cleaning mechanical parts with solvent, make sure to comply with occupational health and safety regulations, and make sure that there is satisfactory ventilation.
For major service to the machine, contact the Altrad Belle or your nearest authorised dealer

NOTE! Maintenance must only be done by suitably quatified and coompetent persons. Before doing any maintenance the machine is safe and correctly sited on the ground.

Routine Maintenance| Every Week| Every 3 Months| Every 600 Hrs / Yearly
---|---|---|---
Clean and inspect the machine.| ü| |
Grease the Handle Guides with Silicone (E-Type Handles only)| ü| |
Check Hoses and Fittings for cracks or leaks. Replace if necessary.| ü| |
Inspect the ‘Steel’ for wear and damage. Do not use an worn or damaged ‘Steel’.| ü| |
Check for general damage to the machine.| ü| |
If the machine is equipped with Vibration-Absorbing handles, their function shouldbe checked.| ü| |
Check that the handles are moving freely (up – down) and do not jam.| ü| |
Check that the springs are not damaged.| ü| |
Check tightness of nuts, bolts, screws and hose fittings.| | ü|
Check the Chisel bushing in the nose for wear and damage.| | ü|
Check moving parts, seals and bolts for wear and cracks. Replace if necessary.| | | ü
Check the function of the machine.| | | ü

For the machine to maintain the specified vibration values, this should always be checked:
Too big a clearance between the working tool’s shank and the chisel bushing will generate increased vibrations. To avoid exposure to excessive vibrations, check the chisel bushing for wear every day. Use the gauge that corresponds to the working tool’s shank dimension. If the gauge´s part (A) can be pushed fully into the chisel bushing (B), the bushing is worn out and must be replaced! See also “Checking for wear” section for checking the working tool’s shank.

Troubleshooting Guide

Problem	Cause	Remedy
Breaker does not work.Pressure is not built up when trigger is activated.	No
or incorrect flow/pressure.	Check flow/pressure by means of test equipment.
P and T hoses interchanged.	Check connection. Standard connection has oil

flowing from male quick-release coupling (i.e. the tail-hose of the breaker Pconnection is fitted with female coupling).
Insufficient activation of trigger valve.| Adjust trigger lever (if adjustable) or replace defective parts.
Seals defect in spool channel ofvalve housing.| Dismount, check and replace seals.
Breaker does not work. Pressure is built up when trigger is activated| Back pressure too high.| Make direct tank connection. Max. back pressure 10-15 bar(150-200 psi) measured at breaker.
Quick-release coupling in return linedefective.| Locate and replace defective coupling.
Striking piston sticks, possibly due to thickening of cylinder.| Push the breaker hard against the Breaker ‘Steel’.
Chamfer/polish the edge slightly at the cylinder dashpot (wherethe cylinder bore changes size).
Check oil viscosity. Thin oil increases the risk of thickening.
Spool / reversing spool or auxiliaryspool sticking easily.| Dismount and check that all parts move. Polish slightly ifnecessary.
Seals defective.| Dismount, check and replace.
Breaker runs weakly orirregularly| Insufficient flow.| Check flow/pressure.
Seals defective.| Replace seals.
Wear, internal leakage.| Dismantle, check and replace defective or worn parts.
Check impurity of oil and oil viscosity at working temperature.
Thin oil = increased internal leakage.
Insufficient accumulator charge.| Recharge accumulator.
Diaphragm defective.| Replace diaphragm.
Hoses pulsate| Accumulator defective.| Replace accumulator diaphragm and charge with nitrogen.
Oil leaking from breaker.| Seals defective.| Replace seals.
‘Steel’ falls out.| Worn latch.| Replace latch and roll pins.
Worn chisel bushing or ‘Steel’.| Replace bushing or ‘Steel’.

Warranty

Your new Altrad Belle BHB Hydraulic Breaker is warranted to the original purchaser for a period of one-year (12 months) from the original date of purchase. The Altrad Belle warranty is against defects in design, materials and workmanship.

The following are not covered under the Altrad Belle warranty:

Damage caused by abuse, misuse, dropping or other similar damage caused by or as a result of failure to follow assembly, operation or user maintenance instructions.
Alterations, additions or repairs carried out by persons other than Altrad Belle or their recognised agents.
Transportation or shipment costs to and from Altrad Belle or their recognised agents, for repair or assessment against a warranty claim, on any machine.
Materials and/or labour costs to renew, repair or replace components due to fair wear and tear.

Altrad Belle and/or their recognised agents, directors, employees or insurers will not be held liable for consequential or other damages, losses or expenses in connection with or by reason of or the inability to use the machine for any purpose.
Warranty Claims All warranty claims should firstly be directed to Altrad Belle, either by telephone, by Fax, by Email, or in writing.

For warranty claims:
Altrad Belle Warranty Department, Sheen, Nr. Buxton Derbyshire SK17 OEU England.
Tel : +44 (0)1298 84606,
Fax : +44 (0)1298 84722
Email : warranty@belle-group.co.uk