SB BREAKERS Service Training 2014 Kalmar COMMITTED TO

SB BREAKERS Service Training 2014 Kalmar

COMMITTED TO SUSTAINABLE PRODUCTIVITY We stand by our responsibilities towards our customers, towards the environment and the people around us. We make performance stand the test of time. This is what we call – Sustainable Productivity.

SB HYDRAULIC BREAKERS Introduction

SB HYDRAULIC BREAKERS Small Breaker Range § SB =Solid Body § Smallest Atlas Copco breaker series - 8 breaker: 50 – 720 kg § Unique solid body concept § Carrier class: 0, 7 to - 17 to § Vibro. Silenced™ concept

SB HYDRAULIC BREAKERS Solid Body Concept § Easy to Use – Optimal impact energy/ frequency – Increased efficiency § Easy to Install – Built-in, pre-set pressure valve – Different restrictors available § Easy to Service – Quick tool change – Floating wear bushing – Integrated accumulator § Compact Design – – – Less movable parts No breaker box No separate guiding elements No side bolts Removal cylinder-liner/ & percussion piston

SB HYDRAULIC BREAKERS Technical Data

SB HYDRAULIC BREAKERS Competitors Premium Brands Value Brands § High number of basic brands influencing the market segment – – Asian brands Low quality Low performance No features/ options

SB HYDRAULIC BREAKERS Carrier Skid Steer loader Backhoe loader Wheeled excavator Crawler excavator Micro excavator Pedestal boom system Mini excavator Demolition robot

SB HYDRAULIC BREAKERS Carrier SB 52 SB 102 SB 152 SB 202 SB 302 SB 452 SB 552 SB 702 MB 750 MB 1000 MB 1200 MB 1500 MB 1700 HB 2000 HB 2500 HB 3100 HB 3600 HB 4100 HB 4700 HB 5800 HB 7000 HB 10000 0 20 40 60 80 100 120 140

SB HYDRAULIC BREAKERS Applications § Road-Construction § Light demolition § Indoor renovation § Gardening and landscaping § Mining and quarrying § Metallurgical industry (slag recycling and cleaning)

SB HYDRAULIC BREAKERS Special Applications – Underground Rock Excavation § Scaler versions – SB 302 SC, SB 452 SC § Tough scaling application – Heavy wear – Blanc firing – Dust penetration § Water nozzles to avoid dust formation § 100 - 110 bar working pressure § Air ventilation required § Reliable lubrication required § Option: Press fit wear bushing How to scale:

SB HYDRAULIC BREAKERS Special Applications – Underwater § Suitable for all SB breakers § Compressor required § Breaker may dive fully underwater A continuous 2 bar air-flushing must be provided!

SB HYDRAULIC BREAKERS Comparison – Working Principle Gas actuation + Constant impact energy - Difficult to adapt carriers - Oil pressure pulsations Oil actuation - Energy not constant without adjustment + No gas accumulator required - Large oil accumulator Oil/gas actuation + Constant impact energy - Gas accumulator required + No/small oil accumulator

SB HYDRAULIC BREAKERS Comparison – Working Principle Gas actuation NPK Oil actuation e. g. Atlas Copco SB Oil/gas actuation e. g. Atlas Copco MB/HB

SB HYDRAULIC BREAKERS Solid Body Integrated accumulator Back head Oil drainage plug Control valve Percussion Piston Cylinder liner Floating wear bushing Working tool Solid Body Double tool retainers

SB HYDRAULIC BREAKERS Solid Body Mono bloc design Traditional Design Short Head bolts Side bolts

SB HYDRAULIC BREAKERS Solid Body Design No guiding system! No tie rods! No parting lines!

SB HYDRAULIC BREAKERS Solid Body Few moving Design Parts

SB HYDRAULIC BREAKERS Working Principle A 1 A 2 A 1 > A 2 A 1 A 2 Control section

SB HYDRAULIC BREAKERS Working Principle

SB HYDRAULIC BREAKERS High Pressure Accumulator § Maintenance free § Prefilled by factory § Robust diaphragm § Reduced distortion § Easy Charging § Accumulator integrated in the body § No expansion bolts

SB HYDRAULIC BREAKERS Overload protection § Integrated Pressure Relief valve § Standard on all SB breakers § Protection against pressure peaks § Opens at 150 bar and more

SB HYDRAULIC BREAKERS Restrictor selection § Integrated Restrictor § Different diameters available § Allows optimal percussive performance § Increases the pressure at nearly constant oil flow

SB HYDRAULIC BREAKERS Restrictor selection

SB HYDRAULIC BREAKERS Connection Ports

SB HYDRAULIC BREAKERS Idle Stroke Protection § Damping oil chamber § No pressure peaks on the piston seals § Too high energy is absorbed § Stress reduction during blanc firing § Vibration reduction on carrier and breaker The Idle Stroke Protection is no 100% insurance. Blanc firing still hurts the breaker and the carrier!

SB HYDRAULIC BREAKERS Control Valve § Mounted on the side § “Revolver” design § Very less internal leakage § Separate valve cover with dust protection SB 52 – 202 SB 302 – 702

SB HYDRAULIC BREAKERS Working Tool Locking System § Double tool retainers § Oval shaped § Reduces tool rotation, torsion and wear § 2 -sided usable § High energy absorption at blanc firing

SB HYDRAULIC BREAKERS Working Tool Locking System § 1 st lock: Retainer bars § 2 nd lock: Locking pin § 3 rd lock: Lock buffer § Less wear § Easy and quick to handle

SB HYDRAULIC BREAKERS Wear Bushing § Full length wear bushing - Standard: floating fitting - Scaler version: press fitting § Only locked by the retainer bars § Quick and easy removable § Integrated dust wiper

SB HYDRAULIC BREAKERS Energy Recovery § Anvil effect § Reuse of recoiled energy § Higher percussive performance § Less vibration and stress to the breaker and carrier E KIN § Increase of impact frequency ! § Constant single blow energy !

SB HYDRAULIC BREAKERS SB 702 § 60 bar high pressure accumulator § Removable bottom wear plate § Upper press-fit wear bushing § Lower floating wear bushing § Special service tools available

SB HYDRAULIC BREAKERS Maintenance – HP Accumulator § Accumulator repair kit available § Easy refill § No special tools required § 1/8” Minimess adaptor § Service box 1 – 3 can be used

SB HYDRAULIC BREAKERS Maintenance – Wear Bushing § Floating fitting § No press necessary § Service tools available § Local sourcing. Drawings!

SB HYDRAULIC BREAKERS Lubrication § Tools, tool retainers and bushings need to be lubricated regularly § Grease always in an upright position! § Scaler rigs should be fitted with a central lubrication system § Use Atlas Copco chisel paste - High melting point - High level of graphite and copper - Stability and superior lubrication

SB HYDRAULIC BREAKERS Contilube™ II micro § Automatic lubrication pump § Optional equipment for SB breakers § Self bleeding § 150 g cartridges - Refillable - Suitable to chisel paste filling device § Working up to 35 bar back pressure

SB HYDRAULIC BREAKERS Contilube™ II micro - Mounting

SB HYDRAULIC BREAKERS Contilube™ II – Working Principle § Hydraulic grease pump § 1 grease line § 1 pressure line § Direct connected to the breaker § Working principles of Contilube™ II micro and Contilube™ II are equal !

SB HYDRAULIC BREAKERS Contilube™ II – Working Principle Small delivery piston Large delivery piston Delivery adjustment screw Counter nut Set delivery Cartridge seal Cartridge piston Self cutting thread Grease cartridge

SB HYDRAULIC BREAKERS Contilube™ II – Adjustment of the Consumption § Unscrew the counter § Turn clockwise – Delivery decreasing § Turn anti-clockwise – Delivery increasing § Tighten the counter

SB HYDRAULIC BREAKERS Contilube™ II – Adjustment of the Consumption As long as you are able to tighten up the counter nut, the maximum pump delivery is not exceeded.