Instruction Manual
PHS-1900 Hydrostatic Pump - V1.0
www.durapac.com
Page 7 of 7
6.2
Bleeding Air from the System
6.2.1
Repeat Steps 6.1.1 to 6.1.3 (above), if required.
6.2.2
Invert cylinder and place at a lower level than the pump reservoir.
6.2.3
Extend and retract the cylinder several times without putting a load on the
system. Air will be released into the pump reservoir.
6.2.4
Recheck fluid level after removing air.
6.3
Changing Fluid
For best results, change fluid once a year or every 300 hours of use
6.3.1
Repeat Steps 6.1.1 to 6.1.2 (above).
6.3.2
Pour used fluid into a sealable container.
6.3.3
Repeat Steps 6.1.3 to 6.1.5 (above).
6.3.4
Dispose of fluid in accordance with local regulations.
6.4
Lubrication
To extend pump life and improve performance, lubricate the beam pin (A), cross pin
(B), and piston head (C) regularly, using roller bearing grease.
Figure 2 - Lubrication
6.5
Storage
6.5.1
When not in use, depressurise and disconnect the hydraulic pump from the
application.
6.5.2
Wipe clean thoroughly and store in a clean, dry environment. Avoid
temperature extremes.
6.5.3
Shield pump with a protective cover.
