Installation and servicing manual
Air Oil Coolers, LDC
10
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY10-6005-UM/EU
Introduction/Safety instructions/Description
Introduction
The purpose of this manual is to serve as a reference guide for
installation, maintenance and operation of the LDC series of air
oil coolers. 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
precautions prior to putting the air oil cooler into service.
Installation and maintenance work should only be carried out by
qualified personnel. Parker reserve the right to make technical
alternations without notice.
Use
The LDC-series of air oil coolers is designed to cool hydraulic
fluids in systems for 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 and/or variation 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
physical 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 or procedure that, if per-
formed improperly,
is likely
to result in damages to the property,
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
Handling, operation and maintenance
Caution
Risk of bodily injury. To prevent physical harm
when lifting the unit, use the correct lifting technique. Make
sure that all lifting devices are free from damage and ap-
proved for the weight of the air oil cooler.
Precaution
Risk of bodily injury. Disconnect the motor
power supply prior to maintenance.
Caution
Risk of bodily injury. Before disconnecting
hydraulic connections and hoses make sure the system
is depressurized.
Caution
Risk of severe burns. The oil cooler could be-
come 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 automati-
cally 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
Static electricity. Fans generate static electricity.
Do not put sensitive devices (electronics etc.) in the immediate
vicinity of the air oil cooler.
Note!
Use hearing protection 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 air oil cooler at
delivery. Always replace a damaged or missing label.
Caution!
High temperature surface! Use hearing protection!
Rotating fan!
(P/N 500029 - 70x30 mm or P/N 5000291 - 120x50 mm)
See Figure 1
.
Description
Principally the LDC air oil cooler consists of a cooler matrix, a fan
housing and a fan with guard and DC-motor. The DCmotor, fan
and fan guard are assembled as one unit.
The fan
is equipped with a 12V or 24V DC motor, which meets
the requirements of the Automotive EMC Directive 2004/104/
EC adopted to technical progress Council Directive 72/245/EEC
relating to radio interference of vehicles. LDC 023 and LDC 033
are equipped with two fans.
DC-motor
Use 2 pin connectors to connect the motor. For
supply current,
see identification plate
. Consult Parker for motor
overload protection (fuse).
For further information, see Technical specification.