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Catalogue HY10-6004-UM/EU
Introduction/Safety instructions/Description
Introduction
This manual is meant to serve as a reference guide for installa-
tion, maintenance and operation of the Parker LHC-series of air
oil cooler.
Keep the manual at hand. A lost manual should be replaced as
soon as possible.
For optimum performance and in order to prevent incorrect use,
please read this manual carefully and observe all safety precau-
tions prior to putting the air oil cooler into service.
Installation and maintenance work should be carried out by
qualified personnel only. Parker reserve the right to make techni-
cal alternations without notice.
Use
The Parker LHC-series of air oil coolers is designed to cool hy-
draulic fluids in systems for industrial and mobile applications.
Warranty and claims
In the event of breakdown, consult your local Parker office. Parker
shall not be held responsible for any consequences due to modifi-
cation made by the customer.
Safety instructions
The installation contractor as well as the user should be aware of,
understand and observe all safety precautions in this manual,
including any information mentioned on labels fixed to the
product.
Definition of Safety Warning Levels...
...concerning personal safety
All precautions concerning personal safety are classified as per
below, depending on how severe the consequences of an inci-
dent could be.
Danger This alerts you to an action or procedure that, if
performed improperly, will produce bodily harm or death.
Caution This alerts you to an action or procedure that, if
performed improperly, is likely to produce bodily harm or
death.
Precaution This alerts you to an action or procedure that,
if performed improperly, is likely to cause an accident with
bodily harm.
...concerning other safety issues
Notifications concerning other safety issues (property, process
or environment) and maintenance work are classified as follows:
Important This alerts you to an action orprocedure that, if per-
formed improperly, is likely to result in damage to the product,
process or environment.
...concerning additional information
Additional information is marked as follows:
Note! This alerts you to important information related to the text
in a paragraph.
Overall instructions
Lifting
Caution Risk of bodily injury. To prevent bodily harm when
lifting the unit, ensure correct lifting technique. Make sure
that all lifting devices are free from damage and approved
for the weight of the air oil cooler.
Installation and servicing manual
Air Oil Coolers, LHC
Installation, operation, handling and maintenance
Caution Risk of bodily injury. Disconnect the motor pow-
er supply prior to maintenance.
Caution Risk of bodily injury. Before disconnecting the
hydraulic hoses and connections, make sure the system
is depressurized.
Caution Risk of severe burns. This indicates danger
from high temperature surfaces. The air oil cooler could
become extremely hot during operation. Always make
sure the cooler is cool before touching.
Precaution Risk of bodily injury. If the air oil cooler is fitted
with a thermo contact, the fan will start automatically
when the preset temperature has been reached. Be
careful when standing close to rotating units.
Precaution This indicates a toxic hazard. To prevent
bodily injury, damage to property or environment, used
fluid should be collected and taken to a special depôt.
Important Risk of damage to the hydraulic system. Contamina-
tion, water and air will increase wear on hydraulic components,
which could lead to breakdown. The most important practice to
observe when working on the hydraulic system is cleanliness.
Important Static electricity. Fans generate static electricity. Do not
put sensitive devices (electronics etc.) in the immediate vicinity of
the air oil cooler. Antistatic fans are available on request.
Note! Use ear defenders when standing close to an operating air
oil cooler for long periods of time.
Warning label
The warning label shown below is fitted to the oil cooler prior to
delivery. Always replace a damaged or missing label.
Caution! High temperature surface! Use ear defenders!
Rotating fan! (P/N 500029 - 70x30 mm or P/N 5000291 -
120x50 mm) See Figure 1.
Description
Principally the LHC air oil cooler consists of a cooler matrix, a
hydraulic motor, a fan, a fan housing and a fan guard. The cooler
matrix and the hydraulic motor are connected to the hydraulic
system with hydraulic hoses.
Different hydraulic motor types are used in the LHC series of air
oil coolers. Normal ambient temperature for the hydraulic motor
is -20 °C – 60 °C.
For general technical information, see Technical data.
Larger coolers are fitted with a collar bearing for prolonged
hydraulic motor life. If the air oil cooler is fitted with a thermo
contact for temperature sensing, the fan will start automatically
when the preset temperature has been reached.
The acoustic pressure could reach 64-92 LpA dB(A) at 1 m dis-
tance under normal operating conditions depending on air oil cool-
er size. Inappropriate location of the air oil cooler could generate
increased acoustic pressure level and reduced cooling capacity to
allow for good air flow, i.e. optimal cooling capacity.
Identification plate
The cooler identification plate is fitted on the fan housing.
See Figure 2.
On the label you will find information about:
A – Part number.
B – Designation.
C – Serial number.
D – Date of delivery
(year and week, e.g. 1018, i.e. year 2010 and week 18.)
Replace a damaged or missing label as soon as possible.
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Parker Hannifin Corporation
Hydraulics Group
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