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Load-sensing control block SB11

| About this documentation

Bosch Rexroth AG, RE 66177-10-R/2021-11-16

1 About this documentation

1�1 Validity of the documentation

This documentation applies to load-sensing control blocks SB11 of Bosch Rexroth
including the following control block segments:

• Connecting plate, end plate

• Control valves SB11-EHS4

• Hitch control valves EHR11-EHS4

▶ Read this documentation completely and, in particular, the chapter 2

"Safety instructions" and the chapter 3 "General instructions on property and
product damage" in the related instruction manual 66177-B before you start
working with the product.

1�2 Required and supplementary documentation

▶ Only commission the product if the documentation marked with the

book symbol

is available to you and you have understood and observed it.

Table 1: Required and supplementary documentation

Title

Document number

Document type

Load-sensing control block SB11

Contains important information on the safe and proper transport, installation,
commissioning, maintenance and removal of the SB11 control block.

66177-B

Instruction manual

Technical data sheet

Contains the permissible technical data.
Please bear in mind that different technical data sheets apply depending
on the version:

Data sheet

Load-sensing control block SB11

66177

Load-sensing directional valves in sandwich plate design SB11-EHS4

66176

Plates for load-sensing control block in sandwich plate design SB11

66181

Hitch control valves EHR

66126

For related documentation on the assembly and repair, please refer to the
above-mentioned manual and, if necessary, to

www.boschrexroth.com/mobile-hydraulics-catalog

Содержание rexroth SB11

Страница 1: ...RE 66177 10 R 2021 11 16 EN Load sensing control block in sandwich plate design SB11 Assembly instructions 10 R ...

Страница 2: ...ts concerning a certain condition or suitability for a certain application can be derived from our information The information given does not release the user from the obligation of own judgment and verification It must be remembered that our products are subject to a natural process of wear and aging The cover shows an example application The product delivered may differ from the image on the cov...

Страница 3: ... 4 Configuring the control block 9 4 5 Alignment of the control block on the working surface 9 5 Assembly description 10 5 1 Control block assembly 10 5 1 1 Preparation of the block segments for the assembly 10 5 1 2 Assembly connecting plate 11 5 1 3 Assembly directional valve section 11 5 1 4 Assembly directional valve section and 12 5 1 5 Assembly end plate end valve 12 5 2 Control block disass...

Страница 4: ... marked with the book symbol is available to you and you have understood and observed it Table 1 Required and supplementary documentation Title Document number Document type Load sensing control block SB11 Contains important information on the safe and proper transport installation commissioning maintenance and removal of the SB11 control block 66177 B Instruction manual Technical data sheet Conta...

Страница 5: ...erstanding White circle with black number Position or assembly group with reference to the parts list and to the graphics within a chapter White circle with black letters Assembly group with reference to the parts list and to the graphics within a chapter 1 3 2 Designations This documentation uses the following designations Table 3 Designations Designation Meaning SB11 EHS4 Control valve with pilo...

Страница 6: ... parts may not be used again Reworking threads is not permissible Reworking bores is not permissible Protect bores and threads from any deposition of dirt During disassembly adhesion forces might take an effect between the flange surfaces Remove any contamination with a whetstone and clean it with a cleaning cloth Surfaces with imprints or signs of wear in the sealing surface may not be continued ...

Страница 7: ...g control block SB11 7 18 4 About these products The appearance of the individual control block segments may vary 4 1 Overview of control block segments Plates End plate EP Connecting plate AP Directional valves End valve EVR Standard valve SVR Hitch control valve EHR11 EHS4 ...

Страница 8: ...e rods protrude at the end surface On the protrusion the tie rod nuts are located Example Bore Bore Bore Bore Thread Nut EP EVR SVR SVR SVR AP 4 3 Tie rod and nut Tie rods used by Bosch Rexroth are symmetrical differentiation of the thread ends is not necessary Use tie rods M8 length property class 10 9 The required tie rod length depends on the number and combination of the control block segments...

Страница 9: ... chapter 4 3 4 5 Alignment of the control block on the working surface The control block segments can be assembled disassembled horizontally or vertically Vertical assembly Horizontal assembly In case of horizontal assembly the height difference of the individual block segments should be compensated with a suitable underlayer from the fifth control block segment in order to ensure safe orientation...

Страница 10: ...on Abbreviation Connecting plate AP Directional valve EHR SVR Directional valve SB SVR End plate EP End valve EVR Example with end plate Example with end valve 5 1 Control block assembly 5 1 1 Preparation of the block segments for the assembly Prepare the flange surface O ring side of the block segments as follows 1 Block segments with shuttle valve Assemble the shuttle valve according to chapter ...

Страница 11: ...ws with the thread side into the tie rod thread bores of the connecting plate in a clockwise direction and tighten them Tightening torque MA 25 5 2 5 Nm 5 1 3 Assembly directional valve section Orientate the control block segment with the flange surface of the opposite O ring side to the connecting plate and slide it via the tie rod screws to the stop at the connecting plate ...

Страница 12: ...e O ring side to the already mounted control block segment and slide on one after the other via the tie rod screws to the stop 5 1 5 Assembly end plate end valve 1 Orientate the end plate end valve with the flange surface of the opposite O ring side to the already mounted control block segment and slide on via the tie rod screws to the stop 2 Screw the nuts onto the tie rods without using any wash...

Страница 13: ...rol block disassembly 5 2 1 Preparation for disassembly Dismount the control block according to the parameters provided by the machine manufacturer and place it on a clean and stable underlayer The sealing and flange surfaces must not be damaged The control block segments are to be numbered individually 5 2 2 Disassembly end plate end valve 1 Loosen the nuts by turning them counterclockwise and re...

Страница 14: ...RE 66177 10 R 2021 11 16 5 2 3 Disassembly directional valve section and Remove the control block segments one after another via the tie rods 5 2 4 Disassembly connecting plate Loosen the three tie rods by turning them counterclockwise and unscrew them from the connecting plate ...

Страница 15: ...upply X 9 2 5 1 O ring Pilot oil return Rx 9 2 5 1 Table 7 O ring thickness Flange surface protrusion O ring Ø d Protrusion X 1 5 mm 0 3 to 0 4 mm 2 mm 0 4 to 0 5 mm 2 5 mm 0 5 to 0 7 mm 3 mm 0 6 to 0 9 mm 1 Remove the O rings from the ports P R Y Rx and X 2 Insert new O rings into the ports P R Y Rx and X in the flange surface R P Y Rx X Flange surface Control block segments with a recess for an ...

Страница 16: ... from port Y 2 Remove the shuttle valve from port Y 3 Align the shuttle valve with the spherical sealing cup to port Y and insert without jamming 4 Check the distance dimension 0 5 mm from the flange surface of the control block segment to the upper edge of the inserted shuttle valve 5 Insert a new O ring into port Y NOTICE The shuttle valve must remain freely movable within the O ring Disassembly...

Страница 17: ...RE 66177 10 R 2021 11 16 Bosch Rexroth AG Load sensing control block SB11 17 18 ...

Страница 18: ... 11 16 Bosch Rexroth AG Robert Bosch Straße 2 71701 Schwieberdingen Germany Service phone 49 0 9352 40 50 60 Aftermarket boschrexroth de www boschrexroth com eshop Your local contact person can be found at https addresses boschrexroth com ...

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