![Hi-Force HVL Series Operating Instructions Manual Download Page 9](http://html1.mh-extra.com/html/hi-force/hvl-series/hvl-series_operating-instructions-manual_2128861009.webp)
Operating Instruction Manual:
OM-HVL-01
Serial Numbers:
From: AF0324
9
5.3 Bleeding Trapped Air from the System
The bleeding of trapped air from a hydraulic system must only be performed by
qualified personnel who have been trained and are competent to do so.
Cylinders and hoses are not always completely filled with oil when new. It is not usually necessary to bleed
air from single-acting cylinders. However, you
MUST
ensure that all hydraulic hoses are pre-filled with oil
before connection, to ensure no additional air is introduced into the system.
NEVER
extend any HVL cylinder unless its base is fully supported and an external load
is present.