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V50K HYDRAULIC MOTOR START-UP INSTRUCTIONS, CONT.
FILLING THE HYDRAULIC MOTOR
• The initial filling of the system must be carried out in such
a way that all of the air can escape from the high pressure
circuit and from the motor housings before the hydraulic
units are operated.
• Manually fill the motor housing at the most accessible
case drain port with filtered oil. Manually fill the high
pressure line(s) with filtered oil. Fill the oil reservoir to the
maximum level with filtered oil and fill the motor housing
to the maximum level via the most accessible case drain
port with filtered oil.
INITIAL START-UP
• The initial operation of the drive should permit it to rotate
freely without load.
• The drive should initially be operated slowly and under
no load for a period of thirty minutes.
• As the system purges itself of the air and as the hydraulic
oil warms up, steadily increase the load on the drive and
increase the speed of the motor.
ROUTINE MAINTENANCE
• Maintenance of the hydraulic system is limited to chang-
ing the hydraulic fluid and system filtration.
• In order to guarantee the proper function and efficiency
of the hydraulic motor, the purity of the hydraulic oil over
the entire operating period must comply to at least class
18/13 according to ISO 4406.
• With modern filtration technology, however, much better
values can be achieved which contributes significantly to
extending the life and durability of the hydraulic motor
and the complete system.
8.
CHANGING THE FILTERS
• It is recommended that the filters be changed after the
initial start-up or at least 100 hours from the initial opera-
tion.
• NOTE: These recommendations are provided for guidance
to ensure long service life and proper operation of your
PRO-DIG
drive. However, depending on the operating
®
conditions of the drive, it may not be necessary to adhere
to these recommendations as long as the oil cleanliness
level and oil viscosity specifications are strictly adhered to
and monitored.
CHANGING THE HYDRAULIC FLUID
• Oil changes are carried out by first draining the reservoir,
cooler and motor housings. The high-pressure fluid must
be changed after 1000-2000 hours of operation, depend-
ant on the application.
• High working temperatures and frequent cooling-down
phases with low temperatures condense water and will
shorten the life of the hydraulic fluid.
• The oil remaining in the high-pressure circuit itself need
not be changed. Do not open up the high pressure lines
if possible. The instructions regarding initial filling must
be adhered to when changing the hydraulic fluid. In some
applications, a complete oil change may not be necessary.
the oil lost during each filter change must be replaced by
fresh filtered oil.
WWW.PRO-DIG-USA.COM
V30K
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