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Bosch Rexroth H-4WEH...XE Series User Manual

Bosch Rexroth H-4WEH...XE Series
52 pages
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Operating instructions
RE24751-XE-B/10.19
Replaces: 04.16
Document no.: RA78498376_AA
English
4/2 and 4/3 directional valves,
internally pilot-operated,
externally pilot-operated
(Area of application accordingto the Explosion Protection Directive
2014/34/EU: II2G)
Type H-4WEH...XE...
(IECEx Konformitätsbescheinigung
des Ventilmagneten)
(IECEx certificate of conformity of
the valve solenoid)
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Bosch Rexroth H-4WEH...XE Series Specifications

General IconGeneral
BrandBosch
ModelRexroth H-4WEH...XE Series
CategoryControl Unit
LanguageEnglish

Summary

1 About this documentation

1.1 Validity and Required Documentation

Details the validity scope of the manual and lists essential related documents for commissioning.

1.3 Representation of Information

Explains symbols, terms, and abbreviations used for clarity and safety in the manual.

2 Safety instructions

2.1 General Safety Information

General safety principles and emphasis on thorough manual reading.

2.2 Intended Use and Improper Use

Defines permitted applications and lists misuse examples with associated risks.

2.4 Qualification of Personnel

Outlines necessary expertise for safe installation and operation.

2.6 Product-Specific Safety Instructions

Highlights critical warnings and precautions directly related to the valve's operation and environment.

3 General information on damage to property and damage to product

Risk Warnings for Mechanical Load, Contamination, and Fluid Hazards

Alerts users to risks from mechanical stress, dirt ingress, and hazardous hydraulic fluids.

4 Scope of delivery

4.1 Product identification

Explains how to identify the product using its name plate and solenoid housing details.

6 Transport and storage

6.1 Valve transport

Provides guidelines and warnings for the safe transport of the valve, including packaging.

6.2 Storing the hydraulic valve

Details recommended environmental conditions and procedures for storing the hydraulic valve.

7 Assembly

7.1 Unpacking and Surface Protection Changes

Instructions for safe unpacking and warnings about surface protection modifications impacting explosion safety.

7.3 Installation conditions

Specifies environmental conditions, cleanliness, and installation position requirements.

7.4 Prior to assembly

Crucial pre-assembly checks, especially concerning explosion hazards and delivery completeness.

7.7 Assembling the valve

Step-by-step procedures for correctly installing the valve into the system.

8 Commissioning

Checking Connections and Electrical Components

Procedures for verifying connection lines and electrical connections before initial operation.

Hydraulic System Bleeding and Leak Testing

Steps for bleeding the hydraulic system and performing a leak test for operational readiness.

Setting the switching time

Describes how to adjust the switching time using the twin throttle check valve.

9 Operation

9.1 General information

Overview of operational guidelines, including explosion hazards and system manufacturer responsibilities.

9.2 Operating the manual override

Instructions for using the manual override function and related safety warnings.

10 Maintenance and repair

10.1 Cleaning and care

Guidelines for maintaining valve cleanliness, emphasizing proper cleaning agents and methods.

10.2 Inspection and maintenance

Details regular inspection and maintenance tasks for ensuring long-term valve functionality and safety.

10.6 Spare parts

Lists available spare parts, including seal kits and mounting screws, with material numbers.

11 Disassembly and removal

11.1 Warnings for Disassembly

Critical safety warnings regarding pressurized systems and the risk of falling parts during disassembly.

12 Disposal

12.1 Environmental protection and Return to Bosch Rexroth AG

Procedures for environmentally friendly disposal and returning products to the manufacturer.

13 Extension and modification

Explosion hazard caused by unauthorized modification!

Strong warning that any unauthorized modifications will void explosion protection and are prohibited.

14 Troubleshooting

14.1 How to proceed for troubleshooting

Provides a systematic approach to identifying and resolving valve operational issues.

16 Appendix

16.1 List of addresses

Contact information for Bosch Rexroth service, spare parts, and headquarters.

17 Declaration of conformity

EU-Konformitätserklärung - Original

Official EU declaration of conformity detailing compliance with relevant directives.

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