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26 ► MB556

User

Manual

DIMENSIONS AND WEIGHTS

Weight w/Tool Bit, & Mounting Bracket................................................................................................752 lbs / 396 kg

Length w/Tool Bit & Mounting Bracket............................................................................................... 63 in. / 1600 mm

Tool Working Length............................................................................................................................ 15 in. / 381 mm

Tool Diameter........................................................................................................................................ 2.7 in. / 69 mm

Hydraulic Pressure (working).......................................................................................... 1600-2000 psi / 110-138 bar

Flow Range

Minimum............................................................................................................................................. 12 GPM / 45

LPM

Maximum............................................................................................................................................ 22 GPM / 83

LPM

System Relief (min. cracking).......................................................................................................... 2700 psi / 186 bar

Return Line Pressure (max.)................................................................................................................ 350 psi / 24 bar

Operating Oil Temperature (max.)........................................................................................................... 190°F / 88°C

Adapter Fitting Size............................................................................................................................ -12 SAE O-Ring

Recommended Min. Hose ID............................................................................................................................. 3/4 in.

Blows Per Minute.........................................................................................................................590 min. / 1100 max.

Impact Energy Class.......................................................................................................................... 750 ft lb / 1000 J

Sound Power Level........................................................................................................................................ 124 dBA

Carrier Size (Skidsteer)

...............................................................................................4500-10000 lb / 2043-4536 kg

Carrier Size (Mini Excavator)

.......................................................................................7000-16000 lb / 3175-7200 kg

Carrier Size (Backhoe)

................................................................................................7000-16000 lb / 3175-7200 kg

TORQUE TABLE

Item No.

Illustration

Description

Apply

Ft/Lb

Nm

10

Power Cell (4)

Hollow Hex Plug -12 SAE

Loctite™ 242

150

203

20

Power Cell (1,3)

Tie Rod

Kopr Kote™

400

542

24

Power Cell (4)

Charge Valve

Loctite™ 242

75

101

37

Power Cell (1,4)

Capscrew

Loctite™ 242

85

115

55

Housing (2)

Capscrew

Kopr Kote™

455

617

45

Housing

Nut

Kopr Kote ™

455

617

1 Tighten in a cross pattern
2 Thread into nut by hand
3 Thread tie rod into nut by hand
4 Use Loctite™

Note: Weights, dimensions and operating specifications listed on this sheet are subject to change without

notice. Where specifications are critical to your application, please consult the dealer.

SPECIFICATIONS

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Summary of Contents for MB556

Page 1: ... 2015 STANLEY Black Decker Inc New Britain CT 06053 U S A 56598 3 2020 Ver 20 USER MANUAL Safety Operation and Maintenance MB556 MOUNTED HYDRAULIC BREAKER ...

Page 2: ... Has been manufactured in conformity with Wurde hergestellt in Übereinstimmung mit Est fabriqué conformément Ha sido fabricado de acuerdo con E stata costruita in conformitá con Directive Standards Richtlinie Standards Directives Normes Directriz Los Normas Direttiva Norme No Nr Numéro No n Approved body Prüfung durch Organisme agréé Aprobado Collaudato EN ISO EN Noise Directive Machinery Directiv...

Page 3: ...arranty SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR SERVICE OF THIS TOOL REPAIRS AND OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN AUTHORIZED AND CERTIFIED DEALER For the nearest certified dealer call STANLEY Infrastructure at 503 659 5660 and ask for a Customer Service Representative SAFETY SYMBOLS 4 SAFETY PRECAUTIONS 5 TOOL STICKERS TAGS 8 OPERATION 9 TROUBLESHOOTING 15 M...

Page 4: ... messages that follow this symbol to avoid possible injury or death This safety alert and signal word indicates an imminently hazardous situation which if not avoided will result in death or serious injury This safety alert and signal word indicates a potentially hazardous situation which if not avoided could result in death or serious injury This safety alert and signal word indicates a potential...

Page 5: ...r when bystanders are in the work area On some machines carriers the breaker can enter the operator s compartment if it breaks loose and swings toward the operator Make sure that suitable impact shields are used when operating the breaker with this type of equipment Do not operate the breaker unless all safety decals described in this manual are in place The decals must be inspected periodically t...

Page 6: ...pes and dangerous terrain conditions Do not operate the breaker until you read the carrier equipment manual and thoroughly understand all safety operation and maintenance instructions The word carrier as used in this manual means a backhoe or excavator or similar equipment used to operate the breaker Ensure that all maintenance procedures recommended in this manual are completed before using the e...

Page 7: ...er Use only tool bits supplied by STANLEY Use of tool bits supplied by another manufacturer may damage the breaker and will void the warranty To avoid personal injury or equipment damage all breaker repair maintenance and service must only be performed by authorized and properly trained personnel If you do not understand how to safely operate your breaker contact an authorized STANLEY dealer for a...

Page 8: ...300 psi 74730 Excavator 74732 Skidsteer CE Specification Plate 74705 STANLEY Logo Sticker 74707 STANLEY Logo Sticker Skid Steer 47351 Composite Warning Sticker 47352 Lifting Point Decal PN 73005 72074 Grease Sticker 66219 Guaranteed Sound Power Level Decal TOOL STICKERS TAGS ...

Page 9: ...em is filtered to at least 10 micro meters Particles found in fluid should not exceed 10 micro meters in size 3 Check the hydraulic filter Replace the filter if dirty or deteriorated 4 Have your STANLEY dealer test the circuit to which the breaker will be connected to make sure that the circuit is supplying the specified flow and pressure rating for the breaker See the Specifications section of th...

Page 10: ...em and breaker are warm proceed with operation LONG TERM STORAGE 1 Remove the tool bit clean the tool stop and the lower bushing Thoroughly coat the surfaces of the tool stop and the lower bushing with grease 2 If hoses are attached to the breaker install plugs on the hose ends If hoses are removed from the breaker install plugs on the hose ends and install plugs in the breaker IN and OUT ports 3 ...

Page 11: ...s more than trying to break larger pieces Break near the edge Figure 6 Position the Tool Bit On flat material or rock the breaker should be vertical or curled back slightly to direct the impact force downward and toward the backhoe This directs the force back toward the edge of the work material If the tool is positioned in the center of the work or too far from the edge the energy will be absorbe...

Page 12: ...used to strike blows in another place Many materials do not respond well to continued hammering in one place The breaker tool should be repositioned on the work each time the tool penetrates but does not crack the material Do not break continuously in one place Do not break continuously in one place Figure 7 Breaking Continuous penetration in the same area for lengthy periods will create excessive...

Page 13: ...hrough or difficult surface contact results in Blank Firing when the material being broken fractures and the tool bit is no longer in hard contact with the material but is still pushed high enough in the lower body cavity so that the piston can strike it In this position the piston strikes the tool bit and the tool bit in turn is driven against the retaining pins because it is not in sufficient co...

Page 14: ... the breaker Connect an air line to this port and supply the required air pressure and flow to the breaker when using underwater The following chart shows the air flow rate and pressure required for various depths of operation Depth Feet Pressure PSI Air Flow Rate cfm 60 53 69 50 44 60 40 35 52 30 27 44 25 22 39 20 18 35 15 13 31 10 9 27 5 4 23 0 0 18 GREASE THE BIT Grease should be applied to the...

Page 15: ... shank Do not pry while operating Breaker runs but at reduced power Low accumulator charge Have unit serviced by an authorized dealer distributor Excessive back pressure Relief set too low Breaker leaks oil around tool bit and tool bushing Lower seals failed Have unit serviced by an authorized dealer distributor Hydraulic system overheats Main relief set low Have unit serviced by an authorized dea...

Page 16: ...ol bit Also check for cracks If cracks are present the part must be replaced The extent of wear of the tool stop and lower bushings and the tool bit can be checked by moving a NEW tool bit back and forth and measuring the gap between the tool bit and the lower bushing If the gap is more than 250 in 6 mm the upper bushing lower bushing and tool bit should be replaced A gap in excess of 250 in 6 mm ...

Page 17: ...vertighten 5 If the pressure is correct unscrew the gauge to retract the plunger Then loosen and remove the tester from the charge valve If the pressure is not correct proceed to Step 6 Note When disengaging the tester a POP of nitrogen is normal 6 Connect the charge hose assembly to the charging valve on the tester Make sure the valve on the charge hose assembly is closed Open the valve on the ni...

Page 18: ...orque to 41 ft lbs Connect the hoses The parts list for the Flow Control Kit is shown below HOSE ROUTING R Return Route to the breaker OUT port S Supply Route to the breaker IN port P Pressure Route to the tractor s hydraulic pressure T Tank Route to the tractor s hydraulic reservoir 4 R S P T 3 5 8 2 1 6 7 ITEM NO PART NO QTY DESCRIPTION 1 34621 1 FLOW CONTROL BLOCK 2 34839 6 WASHER 3 371516 3 NY...

Page 19: ...m Depth B 48 in 12 mm Depth RETAINER PIN ITEM 17 1 745 in 44 mm Outside Diameter 1 660 in 42 mm Outside Diameter RETAINER PIN ITEM 16 25 in 6 mm Outside Diameter 18 in 4 6 mm Outside Diameter PISTON 1 800 in 46 mm Depth 1 760 in 45 mm FIGURE 14 LOWER BUSHING FIGURE 16 RETAINER PIN FIGURE 15 TOOL STOP Wear Areas C Measure at 1 2 in 30 mm A B C FIGURE 17 PISTON New Part Wear Limit WEAR TOLERANCES ...

Page 20: ...en the piston and tool thus causing stress to concentrate on one particular area of the tool This can also cause the tool to bind inside the hammer Call your dealer for acceptable wear allowances Worn out retainer pin s will cause uneven loading on the pin s themselves causing failure of the tool or retainer pin s This will also cause excessive wear to the front bushing s METAL TO METAL CONTACT Ex...

Page 21: ...ROSION Tools should be greased and stored out of the weather Corrosion tends to accelerate the fatigue fractures of the tool MUSHROOMING Driving the tool into a hard material for a long period of time generates an intense heat indicated by a blue tone just above the point This will soften the steel and cause the point to fold over or mushroom the end of the tool Avoid hammering in one location for...

Page 22: ...tion The other parts of the broken surface are brittle This is the only kind of tool bit failure that is always covered under warranty Figure 25 Internal Material Flaw As a rule working steel failures can be diagnosed by looking at the break itself and at the place on the steel where the break occurred Discoloration like rainbow effects or blue bands is the result of extreme heat Look for surface ...

Page 23: ...ttachment relief to specification Note The relief valve pressure must be greater than the operating pressure of the attachment and three times the back pressure Never use the relief valve to control the flow rate in the circuit Cracking pressure means the loss of 4 or more GPM Record the relief cracking pressure psi Example Operation pressure of a breaker is 2700 psi Back pressure is 150 psi A goo...

Page 24: ...ectrical connections that are part of the attachment kit 2 Ensure proper voltage to the valve s 3 Ensure the REG port of the valve is not blocked 4 Check to make sure the carriers main relief is set to the manufacturers recommendation and that this value is equal or greater than the attachment circuit relief 5 If the valve will not turn off check the drain tank line of the valve to ensure that the...

Page 25: ...V60 V65 V100 Valves A priority flow control valve manufactured by STANLEY Allows for optimum opera tion of any attachment by providing the proper amount of flow for operation of the tool the priority aspect allows the attachment to function properly if another control function is activated Inlet Flow The hydraulic oil supplied to the IN port of the tool or valve Regulated Flow The flow of oil supp...

Page 26: ...dBA Carrier Size Skidsteer 4500 10000 lb 2043 4536 kg Carrier Size Mini Excavator 7000 16000 lb 3175 7200 kg Carrier Size Backhoe 7000 16000 lb 3175 7200 kg TORQUE TABLE Item No Illustration Description Apply Ft Lb Nm 10 Power Cell 4 Hollow Hex Plug 12 SAE Loctite 242 150 203 20 Power Cell 1 3 Tie Rod Kopr Kote 400 542 24 Power Cell 4 Charge Valve Loctite 242 75 101 37 Power Cell 1 4 Capscrew Loct...

Page 27: ...Assembly 33300 Charge Hose Assembly Includes Valve and Hose for Nitrogen Tank Charge Valve Connections 505232 Charge Kit Assembly Includes p n 505232 28257 and 372047 Charge Kit Box 34892 Accumulator Tester 28257 Service Kit For Rebuild MB556 656 856 956 10 40373 Hose Guard Kit 20 degree Bolt on Skidsteer 59096 Conversion Kit to Adapt Breaker to Skidsteer 56599 ACCESSORIES ...

Page 28: ...28 MB556 User Manual MB556 POWER CELL ILLUSTRATION ...

Page 29: ...MB556 User Manual 29 HOUSING PARTS ILLUSTRATION ...

Page 30: ...29 52781 1 Quad Ring 30 52780 1 Rod Seal 31 56541 1 Seal Carrier 32 19096 1 O Ring 33 01219 5 Pipe Plug 34 24495 1 Spool 35 350818 1 O Ring 36 24501 1 Valve Cap 37 00701 6 Capscrew 38 372003 1 Grease Fitting 39 24491 1 Upper Bumper Item Part No Qty Description 40 56546 1 Lower Bumper 41 56595 1 Pressure Spec Sticker 300 psi 43 17559 16 Washer 44 74705 2 STANLEY Sticker 45 22181 8 Nylock Nut 46 747...

Page 31: ...MB556 User Manual 31 MB55600SS MB55600SS 8 1 9 1 11 1 16 1 17 1 2 2 3 16 4 8 5 1 6 8 10 1 12 1 14 1 1 2 7 1 18 1 24 1 21 1 22 2 23 2 25 1 19 1 20 1 ...

Page 32: ...351 1 DECAL COMPOSITE WARNING 9 52745 1 HOUSING WELDMENT 10 56533 1 POWERCELL ASSEMBLY 11 56535 1 SKID STEER MNTG BRKT 12 56546 1 LOWER BUMPER 14 56595 1 PRESSURE SPEC STICKER 300 PSI 16 56611 1 HOSE 451TC 06 37 12 12 12 88 W SL 17 56611 1 HOSE 451TC 06 37 12 12 12 88 W SL 18 65811 1 COUPLER F F FEMALE 19 66219 1 GUARANTEED SOUND POWER LEVEL 20 66764 1 DECAL USA ORIGIN 3 21 72074 1 DECAL GREASE 22...

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Page 36: ...STANLEY Infrastructure 6430 SE Lake Road Portland Oregon 97222 USA 503 659 5660 Fax 503 652 1780 www stanleyinfrastructure com ...

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