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MB156 User

 Manual ◄ 17

The  tools  required  to  charge  the  breaker  are  shown 

below.  These  tools  (except  the  nitrogen  tank)  are 

available  in  the  MB156  Service  Kit.  When  using  the 

tools,  be  sure  they  are  clean  as  well  as  the  breaker 

charge valve. Dirt can contaminate the charge valve and 

cause leakage.

CHECKING THE NITROGEN CHARGE IN 

THE BREAKER

1. 

Remove the protective plug from the charge valve 

using a 3/16 inch hex wrench.

2. 

Hold the chuck end of the tester and turn the gauge 

fully counter clockwise to ensure the plunger inside 

the chuck is completely retracted.

3.  Screw the tester into the breaker charge valve using 

the  chuck  for  turning.  Do  not  use  the  gauge  for 

turning as this will advance the plunger in the chuck. 

Tighten the chuck lightly against the breaker charge 

valve.

4. 

Turn  the  gauge  clockwise  to  advance  the  plunger 

until a pressure is indicated on the gauge. Do not 

overtighten.

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.

CHARGING THE BREAKER WITH 

NITROGEN

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 nitrogen bottle.

7. 

Very  slowly  open  the  valve  on  the  charge  hose 

assembly  and  slowly  meter  the  nitrogen  into  the 

breaker charge valve until the tester reads the correct 

charge  pressure.  SEE  CHARGE  PRESSURE 

SPECIFICATION BELOW.

8.  When the correct pressure is obtained, close the 

valve  on  the  nitrogen  bottle.  Unscrew  the  gauge 

to retract the plunger. Loosen and remove the 

tester from the charge valve. Before, replacing the 

protective plug, inspect the plug O-ring. If damaged 

or deformed, replace the plug.

Figure 12. Charge Pressure Specification For the MB156

18

CHARGING THE ACCUMULATOR

505232 Charge Hose Assy

(includes gauge, valve, hose 

and charge valve adapter)

28257 Tester

Plunger

Charging Valve

Gauge

Chuck

28257 TESTER

Nitrogen Charging Equipment

The tools required to charge the breaker are shown below. 

These tools (except the nitrogen tank) are available in the 

MB156  Service  Kit.    When  using  the  tools,  be  sure  they 

are  clean  as  well  as  the  breaker  charge  valve.    Dirt  can 

contaminate the charge valve and cause leakage.

CHECKING THE NITROGEN CHARGE IN THE BREAK-

ER

1,  Remove the protective plug from the charge valve using 

a 3/16 inch hex wrench.

2.  Hold the chuck end of the tester and turn the gauge fully 

counter clockwise to ensure the plunger inside the chuck is 

completely retracted.

3.  Screw the tester into the breaker charge valve using the 

chuck for turning.  Do not use the gauge for turning as this will 

advance the plunger in the chuck.  Tighten the chuck lightly 

against the breaker charge valve.

4.  Turn the gauge clockwise to advance the plunger until a 

pressure is indicated on the gauge.  Do not overtighten.

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.

CHARGING THE BREAKER WITH NITROGEN

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 nitrogen bottle.

7.  Very slowly open the valve on the charge hose assembly 

and slowly meter the nitrogen into the breaker charge valve 

until the tester reads the correct charge pressure.  SEE 

CHARGE PRESSURE SPECIFICATION BELOW.

8.  When the correct pressure is obtained, close the valve 

on  the  nitrogen  bottle.    Unscrew  the  gauge  to  retract  the 

plunger.  Loosen and remove the tester from the charge valve. 

Before, replacing the protective plug, inspect the plug o-ring. 

If damaged or deformed, replace the plug.

CHARGE PRESSURE SPECIFICATION FOR THE MB156.

350  psi/24  bar  (250  psi/17  bar  if  less 

than  6  gpm/23  lpm  or  less  than  2000 

psi) at 21

º

 C/70

º

 F with NO FORCE ON 

THE TOOL BIT.

Nitrogen Bottle (locally obtained)

505232 Charge Hose 

Assy (includes gauge, 

valve, hose and charge 

valve adapter)

28257 Tester

Nitrogen Bottle (locally obtained)

Nitrogen Charging Equipment

18

CHARGING THE ACCUMULATOR

505232 Charge Hose Assy

(includes gauge, valve, hose 

and charge valve adapter)

28257 Tester

Plunger

Charging Valve

Gauge

Chuck

28257 TESTER

Nitrogen Charging Equipment

The tools required to charge the breaker are shown below. 

These tools (except the nitrogen tank) are available in the 

MB156  Service  Kit.    When  using  the  tools,  be  sure  they 

are  clean  as  well  as  the  breaker  charge  valve.    Dirt  can 

contaminate the charge valve and cause leakage.

CHECKING THE NITROGEN CHARGE IN THE BREAK-

ER

1,  Remove the protective plug from the charge valve using 

a 3/16 inch hex wrench.

2.  Hold the chuck end of the tester and turn the gauge fully 

counter clockwise to ensure the plunger inside the chuck is 

completely retracted.

3.  Screw the tester into the breaker charge valve using the 

chuck for turning.  Do not use the gauge for turning as this will 

advance the plunger in the chuck.  Tighten the chuck lightly 

against the breaker charge valve.

4.  Turn the gauge clockwise to advance the plunger until a 

pressure is indicated on the gauge.  Do not overtighten.

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.

CHARGING THE BREAKER WITH NITROGEN

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 nitrogen bottle.

7.  Very slowly open the valve on the charge hose assembly 

and slowly meter the nitrogen into the breaker charge valve 

until the tester reads the correct charge pressure.  SEE 

CHARGE PRESSURE SPECIFICATION BELOW.

8.  When the correct pressure is obtained, close the valve 

on  the  nitrogen  bottle.    Unscrew  the  gauge  to  retract  the 

plunger.  Loosen and remove the tester from the charge valve. 

Before, replacing the protective plug, inspect the plug o-ring. 

If damaged or deformed, replace the plug.

CHARGE PRESSURE SPECIFICATION FOR THE MB156.

350  psi/24  bar  (250  psi/17  bar  if  less 

than  6  gpm/23  lpm  or  less  than  2000 

psi) at 21

º

 C/70

º

 F with NO FORCE ON 

THE TOOL BIT.

Nitrogen Bottle (locally obtained)

Plunger

Charging Valve

Gauge

Chuck

28257 TESTER

350 psi/24 bar (250 psi/17 bar if 

less than 6 GPM/23 LPM or less 

than 2000 psi) at 70 

º

F/21 

º

C with 

NO FORCE ON THE TOOL BIT.

CHARGING THE ACCUMULATOR

Summary of Contents for MB156

Page 1: ...2015 STANLEY Black Decker Inc New Britain CT 06053 U S A 30892 3 2020 Ver 22 USER MANUAL Safety Operation and Maintenance MB156 MOUNTED HYDRAULIC BREAKER...

Page 2: ......

Page 3: ...the warranty 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 n...

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 in...

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 shiel...

Page 6: ...ion and maintenance instructions The operator must be familiar with all prohibited work areas such as excessive slopes and dangerous terrain conditions Do not operate the breaker until you have read t...

Page 7: ...reaker performance Do not operate a damaged leaking improperly adjusted or incompletely assembled breaker Do not modify the breaker in any manner Use only tool bits supplied by STANLEY Use of tool bit...

Page 8: ...ITROGEN ONLY 350 PSI 27711 Accumulator Pressure Sticker 350 PSI 29704 MB15614 only Not Shown Accumulator Pressure Sticker 250 PSI 47351 Composite Warning Sticker 2 GREASE TOOL BIT WHEN DRY PN 73015 P...

Page 9: ...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 t...

Page 10: ...ydraulic system 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 lowe...

Page 11: ...ING THE BREAKER TOOL ON THE WORK MATERIAL Position the tool bit near the edge of the work material not in the center or far from the edge Position the tool 6 18 inches depending on the material from t...

Page 12: ...e between a good solid blow and a hollow sounding blow A hollow blow means that solid blows are not occurring and breaker should be repositioned If the material does not break with 3 6 inches of tool...

Page 13: ...rranties Break through 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...

Page 14: ...each time it is installed Thereafter the tool should be greased at the fitting to reduce wear in the lower body and bushings of the tool See Greasing The Tool Bit in the sections titled Pre Operation...

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 leak...

Page 16: ...l 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 for...

Page 17: ...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 nitrogen bottle 7 Very slowly open the valve on the charge hose assem...

Page 18: ...que to 41 ft lbs Connect the hoses The parts list for the Flow Control Kit is shown below HOSE ROUTINGS R Return Route to the breaker OUT port S Supply Route to the breaker IN port P Pressure Route to...

Page 19: ...B 35 in 9 mm Depth RETAINER PIN ITEM 9 995 in 25 mm Outside Diameter 91 in 23 mm Outside Diameter RETAINER PIN ITEM 12 312 in 8 mm Outside Diameter 242 in 6 mm Outside Diameter PISTON ITEM 20 1 525 i...

Page 20: ...n 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...

Page 21: ...atigue failures take many forms but they all exhibit similar features Generally the broken surface is brittle and has a lip like that in the bending failure even though in some cases the lip has been...

Page 22: ...eat Look for surface cracks galling or gouge marks Breaks that start as surface damage have a sea shell pattern with the damaged spot at the center A large sea shell indicates a slow growing break A s...

Page 23: ...o hard rock Its pencil type point is used to fracture the material The tool is best where penetration speed is important CHISEL This style of point is used generally used for trench work where a contr...

Page 24: ...m relief pressure in the specification section in the manual Adjust attachment relief to specification Note The relief valve pressure must be greater than the operating pressure of the attachment and...

Page 25: ...and review the following 1 Attachment valves are not actuating Review all electrical connections that are part of the attachment kit 2 Ensure proper voltage to the valves 3 Ensure the REG port of the...

Page 26: ...ves A priority flow control valve manufactured by STANLEY Allows for optimum operation of any attachment by providing the proper amount of flow for operation of the tool the priority aspect allows the...

Page 27: ...turn Line Pressure max 200 psi 13 8 bar Operating Oil Temperature max 200 F 93 C Adapter Fitting Size 12 SAE O Ring Recommended Min Hose ID 3 4 in Blows Per Minute 600 min 1200 max Impact Energy Class...

Page 28: ...ve Connections 505232 Charge Kit Assembly Includes P N 505232 28257 and 372047 Charge Kit Box 34892 Accumulator Tester 28257 Service Kit For Rebuild MB156 256 356 40372 Conversion Kit to Adapt Breaker...

Page 29: ...MB156 User Manual 29 MB156 POWER CELL ILLUSTRATION...

Page 30: ...39 1 O RING 18 22398 1 O RING 19 25902 2 TIE ROD 20 26027 1 PISTON 21 26033 2 TIE ROD WASHER 22 26157 7 O RING 23 39442 1 PISTON SLEEVE 24 39443 1 ROD SEAL 25 26038 1 ROD WIPER 26 18634 1 O RING 27 26...

Page 31: ...MENT RH 6 27994 4 SIDE PLATE BOLT 7 27995 4 RETAINING RING EXTERNAL 8 28109 1 MB156 POWERCELL ASSY 10 35415 4 SIDE PLATE NUT ITEM P N QTY DESCRIPTION 12 47352 2 DECAL LIFT POINT 13 66764 1 DECAL USA O...

Page 32: ...CAL POINT 5 27995 4 RETAINING RING EXTERNAL 6 28109 1 MB156 POWERCELL ASSY 8 37916 4 SIDEPLATE NUT 9 39480 4 SIDEPLATE BOLT 10 39704 1 PRESSURE SPEC STICKER 11 47351 1 DECAL COMPOSITE WARN ING 12 4735...

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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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