Installation; Handling - Parker LDC Serie Manuel D'installation Et D'entretien

Catalogue HY10-6005-UM/EU
Installation/Handling
Acoustic pressure level could reach 66-77 dB(A) at 1 m dis-
tance depending on air oil cooler size under normal operating
conditions. An inappropriate location or operation under ex-
treme conditions could cause an increase in acoustic pressure
level and a decrease in cooling capacity.
Identification plate
The identification plate of the air oil cooler is fitted on the fan hous-
ing and contains the following information: See Figure 2.
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 identification plate as soon as pos-
sible.

Installation

Lifting
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
approved for the weight of the air oil cooler.
Mounting
The LDC air oil cooler can be mounted in any position. However,
an upright installation standing on its feet is recommended. A
free space corresponding to a minimum of half the height of the
matrix should be available in front of and behind the air oil cooler
to allow for optimal cooling capacity and low acoustic power
level. See Figure 3.
An inappropriate location or operation under extreme conditions
could cause an increase in acoustic pressure level and a decrease in
cooling capacity.
Precaution Risk of bodily harm. Make sure that the air oil
cooler is securely fixed.
Connection of the cooler matrix
Connect the cooler matrix using flexible hydraulic hoses. Make
sure that all connections and hoses are sized according to the
system pressure, flow, temperature and type of oil.
Connect the hydraulic hoses to the cooler matrix as illustrated
below. See Figure 4.
A – Inlet.
B – Outlet for single-pass.
C – Outlet for two-pass.
D – Outlet for two-pass.
Dimensions on connections are cooler matrix size dependent.
Connection chart, See Figure 5.
Installation and servicing manual
Air Oil Coolers, LDC
Important The cooler matrix is designed for maximum dynamic
working pressure 14 bar. When the cooler is installed in a return
line, there should be no pressure spikes. If this is not possible,
an offline cooling system should be used.
Electrical connection
Precaution Prior to connecting the DC motor to the supply
system, make sure the information on the motor label
corresponds to specified direct current.
The DC motor must only be installed according to general
and electrical safety rules. Circuit diagram, see Figure 6.
Precaution Be careful when connecting. Improperly
made connections, damaged cables, etc. could cause
components to become live or result in the incorrect di-
rection of rotation of the DC motor and fan.
Note! A motor overload protection is recommended. The size
of the overload protection/fuse, depends on fan size and air flow
across the cooler. Contact Parker concerning motor protection/
fuse size.
The LDC air oil cooler can be fitted with a thermo contact for tem-
perature control. The fan will start automatically when the preset
temperature has been reached. Use a relay if the current load ex-
ceeds 8 A at 12V and 6A at 24V.

Handling

Prior to initial start-up
Precaution Check that the air oil cooler is securely fixed
and correctly connected.
We recommend that you proceed as follows prior to start-up:
1. Run the air oil cooler with the system fluid.
2. Filter the fluid before passing through the cooler.
See Technical specification for recommended fluid compatibility.
Prior to start up
Precaution Do not start the air oil cooler if there is a risk of
damage to person, property or environment.
Check that:
• all air oil cooler parts are free from damage
• the air oil cooler is correctly connected
• the fan rotates freely (use hand force)
• all hydraulic connections are tight
• t he inside of the fan housing is free from objects that could be
thrown around and cause bodily injury or damage to property.
At start-up
Check that:
• t he direction of rotation of the fan and the air flow corresponds
to indications on the fan housing
• the air oil cooler is free from abnormal noise and vibrations.
• the air oil cooler is free from leaks
Consult Parker when using viscosity oil > 100 cSt (e.g. thick
lubricating oils).
In order to protect the cooler matrix, use a by-pass valve when
operating in cold start mode/with thick lubricating oils.
See LDC brochure broschyr.
11
Parker Hannifin Corporation
Hydraulics Group