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Assembling The Valve - Bosch Rexroth H-4WEH...XE Series Operating Instructions Manual

4/2 and 4/3 directional valves, internally pilot-operated, externally pilot-operated
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Assembly
locating pin
Ordering address for
accessories and valves
Bosch Rexroth AG, H-4WEH...XE..., RE 24751-XE-B/04.16
Table 12: locating pins for porting pattern according to ISO 4401-03-02-0-05
Dimensions
3 × 8 according to EN ISO 8752
The addresses of our responsible sales organizations can be found on the Internet at
www.boschrexroth.com and in the appendix 16.1 "List of addresses".

7.7 Assembling the valve

7.7.1 Installing the valve in the system
Faulty assembly of plug screws and lines!
Improperly fastened plug screws and lines may become loose during subsequent
operation, fly around due to the pressure and thus cause serious injury!
Only pressurize your system after all plug screws and lines have been completely
and properly mounted according to the specification.
Faulty mounting!
Mounting of the valve using valve mounting screws of reduced stability, insufficient
mounting or fastening at blocks and plates with insufficient stability may cause the
valve to become loose and fall down. Consequently, hydraulic fluid may leak and
lead to personal injuries and/or damage to property. Special care must be taken
with valves with suspended installation.
Completely assemble the valve according to the assembly specifications using
suitable assembly aids.
Only assemble the valve at blocks or plates suitable for the weight of the valve.
Observe the tightening torques, screw stability and the minimum length of the
valve mounting screws.
Insufficient installation space!
Insufficient installation space may lead to jamming or abrasions in case of actuation
and adjustment work at the valve.
Provide for sufficient installation space.
Ensure that actuation elements, adjustment elements and plug-in connectors are
easily accessible.
leaking hydraulic fluid!
Hydraulic fluid may leak during assembly and disassembly of the valve.
Consequently, persons may slip or fall.
Only remove the protective caps of valve directly before the assembly.
After the disassembly, provide the bores containing the hydraulic fluid with
suitable closing elements.
Immediately remove leaked hydraulic fluid.
Material number
R90005694
wARnInG
CAUTIOn

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