Installation; Unpacking; Installation Conditions - Bosch REXROTH A4 Series Instruction Manual

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Installation

Bosch Rexroth AG, A4... with HS5E pilot control valve/Series 3x, RE 92076-01-B/10.2017
7 Installation
Prior to installation, the following documents must be to hand:
• Installation drawing for the axial piston unit (can be obtained from your contact
at Bosch Rexroth)
• Hydraulic circuit diagram for the axial piston unit (in the installation drawing)
• Hydraulic circuit diagram for the machine/system (available from the machine/
system manufacturer)
• Order confirmation (contains the order-related technical data for your axial piston
unit)
• Data sheet for the axial piston unit (contains the permissible technical data)

7.1 Unpacking

The axial piston unit is delivered in a corrosion protection film made of polyethylene
material (PE).
CAUTIOn! Danger from parts falling out!
Opening the packaging incorrectly can result in parts falling out, which can be
damaged or even cause injury!
▶ Place the packaging on a level, load-bearing surface.
▶ Only open the packaging from the top.
▶ Remove the packaging from the axial piston unit.
▶ Check the axial piston unit for transport damage and completeness, see
Chapter 4 "Scope of delivery" on page 22.
▶ Dispose of the packaging material according to the national regulations in your
country.

7.2 Installation conditions

The installation location and position of the axial piston unit essentially determine
the procedures during installation and commissioning (such as when filling and air
bleeding the axial piston unit).
▶ Fix the axial piston unit so that the expected forces and torques can be
transferred without any danger. The machine/system manufacturer is responsible
for dimensioning the fasteners.
▶ Observe the permissible radial forces on the drive shaft when driving with radial
loading (belt drives). If necessary, the belt pulley must be stored separately.
▶ Make sure that the axial piston unit is air bled and filled with hydraulic fluid
during commissioning and operation. Do this also after relatively long standstill
periods, since the axial piston unit may drain through the hydraulic lines.
▶ The leakage in the housing area must be directed to the reservoir via the highest
drain port. Use the line size which is appropriate for the port.
▶ Avoid using a check valve in the drain line.
Exception: Above-reservoir installation, drive shaft upward.
A check valve in the drain line (cracking pressure 0.5 bar) can prevent the system
from draining through the drain line. Please note the correct flow direction.
▶ To keep noise down, decouple all connecting lines from all vibration-capable
components (e.g. reservoir) using elastic elements.