Commissioning; Initial Commissioning - Bosch Rexroth 4WRPD Operating Instructions Manual

– Large-area contact of the frequency converter housing to the rear wall of the
control cabinet
7.7.4 Altitude of the valve on Multi-Ethernet basis
For safety-relevant applications, the intended altitude of the valve is limited to
2000 m. Higher altitudes are not admissible.

8 Commissioning

Incorrect installation, leaking hydraulic fluid!
Carelessly or incorrectly mounted valves may become loose during operation, fall
down and cause serious injuries. A powerful hydraulic fluid jet may be ejected at
incompletely connected hydraulic ports and connection lines and cause serious
injuries.
▶ Only commission the system after all hydraulic connections and the valve have
been completely and properly mounted according to the specifications.
▶ Look out for defective sealing points and replace defective seals immediately.
▶ Wear personal protective equipment during initial commissioning.
Inadmissibly high operating pressure!
In hydraulic applications with different area ratios, the hydraulic pressure is
intensified and may - in case of incorrect dimensioning - lead to exceedance of the
maximum admissible operating pressure. Thus, the valve may burst or the plug
elements may be hurled away and cause serious injuries.
▶ Before commissioning the hydraulic system ensure that the maximum
admissible pressure of the valve in the system is not exceeded by any means.
▶ Ensure that in your system, the maximum admissible operating pressure is
secured by means of a pressure relief valve.
Commissioning by persons without the required knowledge!
Danger of damage to property and personal injuries. Commissioning of the valve
requires basic hydraulic and electrical/electronic knowledge.
▶ The valve may only be commissioned by qualified staff.

8.1 Initial commissioning

▶ Prior to commissioning, make sure that all electrical and hydraulic connections
are either used or covered. Only commission a completely installed product.
▶ Make sure that only hydraulic fluid specified in the valve data sheet is used.
▶ Allow the valve to acclimatize for some time prior to commissioning as the
electronics might be damaged by the formation of condensed water.
▶ Immediately depressurize the system if hydraulic fluid still leaks despite proper
mounting and continue with chapter 14 "Troubleshooting".
RE 29391-B/05.2021; 4WRPD(H), 4WRPQ(H), 4WRPF(H), 4WRLD, 4WRLF, 4WRLQ, 5WRPF10, 5WRPQ10, Bosch Rexroth AG
WARNING
Commissioning 37/48