16
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
Operation and Maintenance
Special Tools
All normal service and maintenance on standard power units
can be accomplished with standard hand tools. No special
tools are required.
Safe Operating Procedures
Should a failure of the electrical power supply occur,
power should not be returned to these power units without
a conscious action by the operator.
108/118/165/175 Series Power Units using the Series Wound
motors may approach 70 dB(A) at low pressure operation but
testing shows these motors will average about 65 dB(A) at low
pressure. At higher pressures the noise level will decrease.
All other AC and DC motors used in these power units should
be well under 70 dB(A). In the unlikely event of noise levels
exceeding 70 dB(A) it is recommended that ear protection be
worn. If noise levels should exceed 80 dB(A) it is necessary to
take measures to reduce noise. This is normally achieved by
placing machinery in an acoustically lined enclosure.
Some 108/118/165/175 Series Power Units will be supplied with
one or two solenoid cartridge valves. These must be operated
at the voltage stated on the valve coils. Failure to do so may
result in damage to the coils and valves and will also void
warranty.
108/118 and 165/175 Series Power Units are designed for
Intermittent Use Only.
Only under very limited circumstances
can a 108/118 Series Power Unit run continuously.
1. The 108/118 Series 12 vdc Permanent Magnet motor is
drawing less than 12.6 A
2. The 108/118 Series 24 vdc Permanent Magnet motor is
drawing less than 9.6 A.
The Series Wound motors are not designed for continuous duty.
The 108/118 Series 115 VAC and 230 VAC motors are capable
of operating a maximum of five minutes on continuously. The
AC motors must then be off until they have cooled down to
the ambient temperature. This could take 90-120 minutes,
depending on the ambient conditions. The 165/175 Series PM
motors are not intended for continuous operation. If pressure
must be maintained on an actuator, let the internal check valves
(if ordered) hold the pressure; do not operate the power unit
over the relief valve as this will create heat which could damage
the power unit. For Motor Duty Cycle Characteristics, see pages
17 - 20.
Removal from service
There may be hydraulic liquid under
pressure. Do not open unit or break pipe
connections until hydraulic pressure has
been released.
If, for some reason, the power unit must be removed from
service, follow these instructions:
1. Wear protective eye gear.
2. Remove electrical power from the motor and solenoid valve
(if applicable).
3. Mechanically hold/block the actuator load to prevent its
movement once pressure is relieved in the fluid conductors.
4. Only after the load is mechanically held in place, put a
rag around the UP or DN port fitting and loosen the port
connection. The rag should absorb oil leakage as any locked
pressure is relieved. Repeat this process for the other port.
5. Immediately cap the fluid conductor ends and the power unit
ports to prevent the introduction of contaminants until the
power unit is reconnected.
6. When reinstalling the power unit, follow all the procedures
and startup instructions given previously.
Operating these power units with a voltage other than that
called for by the ordering model code may damage the
electric motor and will void the warranty. Other voltages
may also cause the power unit to operate unreliably.
For both 108/118 and 165/175 Series Power Units, standard
operating and storage temperature range is -7 to +60°C (+20 to
+140°F). Please contact Parker Oildyne for usage outside of this
range.
Operation
Suitable lighting requirements for operation of this unit are the
responsibility of installing manufacturer.
See pages 17 - 20 for performance information.
See pages 17 - 20 for Motor Duty Cycle Characteristics.
There may be hydraulic liquid under
pressure. Do not open unit or break pipe
connections until hydraulic pressure has
been released.
Maintenance
Parker Oildyne power units require relatively low maintenance
due to the intermittent operating nature. Any maintenance
should only be conducted when units are disconnected from
their power supply, depressurized and removed from service.
It is strongly recommended that the customer have available the
MSDS for the fluid chosen for use in the Parker Oildyne power
unit. Follow all instructions should the fluid be spilled or come in
contact with an operator.
Reservoir removal for suction screen maintenance
The ‘A’ and ‘B’ reservoirs are held to the power unit by a
single screw located at the flat end of the reservoir. These
screws fasten into a ‘leg’ of the pump. To remove the ‘A’ or ‘B’
reservoir:
1. Wear protective eye gear.
2. Mechanically hold/block the actuator load to prevent its
movement once pressure is relieved in the fluid conductors.
3. Remove electrical power from the motor and solenoid valve
(if applicable).
4. Remove the oil from the tank using a siphon through the
reservoir filler port. If no filler port exists in the reservoir itself,
the power unit will have to be inverted to allow the oil out of
the reservoir.
5. Only after the load is mechanically held in place, put a
rag around the UP or DN port fitting and loosen the port
connection. The rag should absorb oil leakage as any locked
pressure is relieved. Repeat this process for the other port.
6. Immediately cap the fluid conductor ends and the power unit
ports to prevent the introduction of contaminants until the
power unit is reconnected.
7. Remove the fasteners bolting the power unit to the mounting
surface.
8. Remove the reservoir filler plug or dipstick.
9. Invert the power unit to drain the fluid into a container for
recycling purposes. It is recommended that upon restarting
the equipment new, clean fluid is used.
