4
Instruction Manual
Oildyne 108/118 and 165/175 Series
Hydraulic Power Units
Bulletin HY22-3210A/US
Parker Hannifin
HPS Division
New Hope, MN 55428 USA
Introduction and Description
Introduction
This manual provides descriptive operation and maintenance
instructions for 108/118 Series and 165/175 Series Hydraulic
Power Units manufactured by the Parker Hannifin Corporation,
Oildyne Division. Any additional information may be obtained
from Parker by referencing the unit part number stamped on
the product label or by contacting your local authorized Parker
Oildyne Distributor.
Some of the Information in this manual may not apply to all
power units. Information about custom units may require service
and application information from other sources.
Warning
This Instruction Manual should be read in its entirety and
understood prior to installing and operating Parker Oildyne
108/118 Series and 165/175 Series Hydraulic Power Units.
It is imperative that personnel involved in the installation,
service, and operation of these Parker Oildyne units be familiar
with how the equipment is to be used. They should be aware
of the limitations of the system and its component parts, and
have knowledge of good hydraulic practices in terms of safety,
installation, and maintenance.
Explanation of Warning Labels
The following labels will be used in this Instruction Manual and
on all applicable Parker Oildyne products.
There may be hydraulic liquid under
pressure. Do not open unit or break pipe
connections until hydraulic pressure has
been released.
Be careful; take precautions; examine
instructions before operation.
Description
The 108 Series and 118 Series are identical power units with the
exception of the porting surfaces. Likewise, the 165 Series and
the 175 Series are identical with the exception of the porting
surfaces.
Refer to ordering/shipping paperwork to determine the exact
model code of your power unit. That model code can be used
to evaluate the performance data in this manual. See page 21
for the Standard Product Model Code. The model code will
appear similar to this:
108AMS32-CLL-4V-15-08-B.
The 108/118 Series and 165/175 Series Hydraulic Power Units
consist of an AC or DC electric motor (the 165/175 Series is
available only with a DC motor), fixed displacement gear pump,
relief valve(s), optional check valve(s), optional two position
solenoid valve, and a reservoir. Multiple circuit types are
available. The gear pump is driven through a coupling located
between the electric motor shaft and the pump drive shaft.
These power units are designed to be operated with an integral
reservoir as the gear pumps themselves are not a sealed
design.
For dimensional drawings, see pages 5 - 7.
108 Series ports:
• 7/16-20 SAE-4 o-ring type (model code -1)
• 7/16-24 inverted flare (model code -2)
• 1/8 in NPSF (model code -3)
• 1/8 in BSPP (model code -4)
165 Series ports:
• 7/16-20 SAE-4 o-ring type (model code -1)
• 1/8 in BSPP (model code -4)
108/165 Series port face example is shown below:
The 118/175 Series versions provide a flat port surface suitable
for mounting a manifold; the ports are not threaded, as shown
below:
For power unit schematics, see pages 8 - 9.
The life expectancy of Parker Oildyne hydraulic power units is
directly tied to the frequency of use, the product in which it is
incorporated and the application.
Shipping weights for the 108/118/165/175 Series Power Units
range from 2.7 Kg (6 lbs) to 6.8 Kg (15 lbs). All combinations of
these power units are light enough that one person can easily
carry them alone.
Pressure Capability (depends on pump/motor):
• 108/118 Series:
Up to 207 bar (3000 psi) maximum
• 165/175 Series:
Up to 241 bar (3500 psi) maximum
Flow Output (at no load):
• 108/118 Series AC motor:
.5 - 1.9 lpm (.15 - .5 gpm)
• 108/118 Series DC motor:
.6 - 3.6 lpm (.16 - .9 gpm)
• 165/175 Series DC motor:
2.8 - 5.3 lpm (.75 - 1.4 gpm)
