1 About this documentation
1.1 Validity of the documentation
This documentation applies to the following products:
This documentation is intended for assemblers, operators, service engineers, system
end-users, machine and system manufacturers.
This documentation contains important information on the safe and proper
assembly, transport, commissioning, operation, use, maintenance, disassembly and
simple troubleshooting of the product.
Read this documentation thoroughly and in particular chapter 2 "Safety
instructions" and chapter 3 "General information on damage to property and
damage to product" before working with the valve.
1.2 Required and amending documentation
The product may not be commissioned until you have been provided with the
documentation marked with the book symbol
Table 1: Required and amending documentation
4/2 and 4/3 directional valves, internally
pilot-operated, externally pilot-operated
General product information on
Declaration of conformity H-4WEH...XE...
1.3 Representation of information
Uniform safety instructions, symbols, terms and abbreviations are used to ensure
quick and safe working with the product using this documentation. For a better
understanding, they are explained in the following sections.
1.3.1 Safety instructions
In this documentation, safety instructions are included in chapter 2.6 "Product-
specific safety instructions" and in chapter 3 "General information on damage
to property and damage to product" and whenever a sequence of actions or
instructions is explained which bear the danger of personal injury or damage to
property. The hazard avoidance measures described must be observed.
About this documentation
and you have understood and
RE 24751-XE-B/04.16, H-4WEH...XE..., Bosch Rexroth AG
Refer to operating