REXROTH A4VSG - Page 27

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
Installation 27/60
RE 92100-01-B/09.2012, A4VSG Series 10, 11 and 30, Bosch Rexroth AG
▶ Make sure that the suction, boost, reservoir and return lines lead into the
reservoir below the minimum fluid level in all operating conditions. This will
prevent air from being drawn in and foam from being formed.
▶ Make sure that a minimum boost pressure of 16 bar absolute (size 40 to 500) or
25bar absolute (size 750 and 1000) is present at portE of the axial piston pump
in all installation positions during operation or for a cold start, see Fig. 7. For
further pressure values, please refer to the data sheet.
▶ On the version with the mounted boost pump, please note the minimum
permissible suction pressure of the boost pump used. The different data sheets
for the attachment pumps are listed in data sheetRE 92100.
-0.2
0.8 abs.
21
S
1
2
3
0
0
1
2
-1
Fig. 7: Suction pressure (version with mounted boost pump)
1 Absolute pressure gauge
2 Standard pressure gauge (relative)
The suction conditions improve with below-reservoir installation.
▶ Make sure that the working environment at the installation site is fully free of
dust and foreign substances. The axial piston unit must be installed in a clean
condition. Dirt contamination in the hydraulic fluid can seriously impair the
function and service life of the axial piston unit.
▶ Use lint-free cloths for cleaning.
▶ Use suitable mild detergents to remove lubricants and other difficult-to-remove
contamination. Cleaning agents must not enter the hydraulic system.