REXROTH A4VSG - Installation Position

Company Registered in England No: 4167649 VAT Registration No: 732 5692 25 BS EN ISO 9001:2008 No: LRQ 0964389
+44 (0)1204 699959
enquiries@hyquip.co.uk
Hyquip Limited New Brunswick Street Horwich Bolton Lancashire BL6 7JB UK
www.hyquip.co.uk/web/index
28/60 Installation
Bosch Rexroth AG, RE 92100-01-B/09.2012 Series 10, 11 and 30,
7.3 Installation position
The following installation positions are permissible. The shown piping layout
illustrates the basic layout.
With the installation position "drive shaft pointing up", a bearing flushing is
needed to lubricate the front bearing and the shaft seal at portU (installation
position 6 and 12). Information about Series 30: If using the external bearing
flushing, the throttle screw in portU is to be screwed in to the stop.
Before installation, fill the pump housing in a horizontal position. PortT to the
reservoir plugged. Filling option when installed at shaft end from above: Fill via
port R(L) and bleed via port T, then plug port R(L).
To achieve an optimum control function, the stroking chambers must be air bled
via the highest air bleed port R2 to R7 in dependence on the installation
positions on the HM, HS, HS4 and EO.
With installation positions 3, 4, 9 and 10, it is to be expected that the control or
regulation is influenced. Because of gravity, dead weight and case pressure,
minor characteristic displacements and actuating time changes may occur.