10
Bulletin HY22-3220A/US
Instruction Manual
550 Series Hydraulic Power Units
Start-Up Procedures
In circuits types using solenoid cartridge valves, the T ports will
be blocked by Oildyne with an SAE-6 plug.
Fluid connectors and conductors installed by the customer
should be selected based on an acceptable safety margin for
the maximum pressure required in the application. 550 Series
Power Units are capable of producing up to 207 bar (3000 psi).
Complete all necessary interconnecting piping to the power
unit. The line sizes should be determined based on oil flow,
operating pressure and allowable pressure drop between the
power unit and actuator.
One of the key ingredients for good service and long life from
a hydraulic system is cleanliness. Because most dirt infiltrates
a hydraulic system during installation, we recommend the
following:
a) All open ports on the power unit, cylinders, etc. must remain
plugged with tape or plastic plugs until just before the hydraulic
connections are made.
b) All interconnecting tubing, pipe, or hose should be clean, and
free of rust, scale and dirt. The ends of all connectors should be
plugged until just before they are to be installed in the system.
c) All openings in the reservoir such as the filler breather or
access end covers holes must remain closed during installation.
Hydraulic Fluids
Follow all vendor-supplied instructions for safe handling, use and
disposal of the fluid selected for operation in this power unit.
It is strongly recommended that the customer have available
the MSDS for the fluid chosen for use in the 550 Series Power
Unit. Follow all instructions should the fluid be spilled or come in
contact with an operator.
It is critical that the reservoir be filled with an approved fluid
prior to startup of the power unit. Any system failures due to
improper fluids being used or operating without the reservoir
being full of an approved fluid will result in voiding the warranty.
The reservoir must be filled with clean fluid through the filler
cap on the reservoir. The type of fluid must be compatible
with the seals used on the power unit, and must comply with
the recommendations of the manufacturers of the component
parts. Acceptable fluids include standard Automatic
Transmission Fluid (ATF) and most mineral based hydraulic
fluids with viscosities between 32 cSt (150 SSU) and 64 cSt (300
SSU) at 38°C (100°F). For fluids other than these, please contact
Oildyne Division with the details. If users wish to use alternative
oil, hydraulic fluid or ATF, they are warned to check that they
have the same properties as those recommended.
Parker
Oildyne takes no responsibility if alternatives are used.
Reservoir Filling
The cylindrical steel reservoirs have filler/breathers with a 3/8-18
NPT thread. The head of the breather is circular allowing the
breather to be removed and installed by hand only – no tools
are necessary. The 19 liter (5 gallon) reservoir breather is also
operable by hand – no tools are necessary.
The rectangular plastic reservoirs have a filler breather which
is a ‘push in/pull out’ design, installable by hand – no tools are
required.
Reservoir volumes: Maximum fill at 7 mm (.25 in) below filler for
all (vertical and horizontal) but 19 liter (5 gallon) reservoir, which
is 25.4 mm (1 in) below filler.
Vertical Mount (motor above reservoir)
Total Volume
Usable Volume
Code
Liter
Gallon
Liter
Gallon
05
2.0
.51
1.1
.30
10
3.9
1.0
3.0
.80
15
5.5
1.4
4.5
1.2
06
3.0
.80
1.0
.26
11
4.8
1.3
3.0
.79
16
6.8
1.8
4.9
1.3
26
10.3
2.7
8.4
2.2
50
23.4
6.2
19
5.0
Horizontal Mount (motor foot down)
Total Volume
Usable Volume
Code
Liter
Gallon
Liter
Gallon
05
2.5
.66
1.6
.44
10
4.5
1.2
2.9
.77
15
6.0
1.6
3.9
1.0
06
3.8
1.0
2.5
.67
11
5.3
1.4
3.3
.88
16
6.4
1.7
4.2
1.1
26
9.4
2.5
6.0
1.6
50
Vertical mounting only
The cleanliness of the fluid going into the reservoir is very
important. In some cases, even new oil out of the drum is not
adequate. We recommend that any fluid being transferred into
the reservoir be done with the transfer pump with a 10 micron
filter installed. A Parker-manufactured filter cart is available for
this purpose.
Start-Up Procedures
Circuit breakers/fuses
Fuses and circuit breaker protection must conform to national
electrical codes and local codes and practices. The following
table shows the Full Load Current (FLA) of the standard (60 Hz)
motors used in the 550 Series Power Units.
SINGLE PHASE MOTORS
115V
230V
MODEL
RPM
WATTS
HP
FLA
FLA
TC
1725
375
0.50
8.2
4.1
TE
1725
560
0.75
9.4
4.7
TJ
1725
750
1.00
13.6
6.8
TL
1725
1125
1.50
17.0
8.5
TV
1725
1500
2.00
19.0
9.5
TM
3450
375
0.50
6.2
3.1
TN
3450
560
0.75
9.0
4.5
TP
3450
750
1.00
12.4
6.2
TQ
3450
1125
1.50
16.0
8.0
TS
3450
1500
2.00
21.4
10.7
Parker Hannifin
HPS Division
New Hope, MN 55428 USA
