Handling; Preventive Maintenance; Maintenance - OLAER LAC Manual Del Usuario

OLAER/OA-Technik LAC AIR OIL COOLER |
Note! Some motors are fitted with plugged holes, which
can be used for draining condensed water.

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 personal injury or damage to, property or
environment.
Check:
• that all air oil cooler parts are free from damages
• that the air oil cooler is correctly connected
• that the fan rotates freely (use hand force)
• that all hydraulic connections are tight
• that the 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 the direction of rotation of the fan and the air
flow correspond to indications on the fan housing
• that the air oil cooler is free from abnormal noise and
vibrations
• that the air oil cooler is free from leaks.
Consult OLAER/OA-Technik 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 LAC brochure.
During operation
Caution Risk of severe burns. The air oil cooler could
become extremely hot during operation. Make sure
that the air oil cooler is cool before touching.
Maximum permitted fluid temperature in the cooler matrix
is 120 °C. Do not overload the electric motor. See label on
electric motor rating plate. The cooler matrix is designed for
maximum allowed dynamic working pressure 14 bar.
Note! Use hearing protection when standing in the imme-
diate vicinity of an operating air oil cooler for long periods
of time.
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Installation and servicing manual | English

Preventive maintenance

Preventive maintenance work must be carried out at regular
intervals. Make sure:
• that there is no abnormal noise or vibrations
• that air oil cooler is securely fixed
• that the cooler matrix is clean, debris will reduce the
cooling capacity
• that the air oil cooler is free from damage, replace
damaged components
• that the air oil cooler is free from leaks
• that warning labels are in good condition, replace any
damaged/missing label immediately.
Annually: Check the electrical installation. This may only
be made by a qualified electrician.
Cleaning
Caution Risk of bodily injury. Prior to cleaning,
disconnect all motor power supplies.
Caution Risk of severe burns. The air oil cooler could
become extremely hot during operation. Make sure
the air oil cooler is cool before touching.
Air oil cooler When cleaning the exterior of the cooler, for
instance using water, disconnect all power supplies. Be
aware of the electric motor protection standard.
Cooler matrix The air fins of the matrix can be cleaned by
blowing through with compressed air. If necessary a high-
pressure washing system and degreasing agent can be used.
When using a high-pressure washing system point the jet
parallel to the air fins. See Figure 11.
Fan housing Remove the cooler matrix when cleaning the
inside of the fan housing. To clean the inside of the fan
housing, use compressed air. If necessary a degreasing agent
can be used. Blow with compressed air from the electric
motor side through the fan guard.

Maintenance

OLAER/OA-Technik shall not be held responsible for any
consequences due to repair and/or modification made by
the customer.
Dismounting the cooler matrix
Caution Risk of severe burns. The air oil cooler could
become extremely hot during operation. Make sure
the air oil cooler is cool before touching.
Caution Risk of bodily injury. Disconnect the motor
power supply prior to maintenance.
1 Turn off the system.
2 Disconnect the electric motor power supply.
3 Make sure that the system is depressurized.
4 Disconnect the oil inlets and outlets.
5 Disconnect the flexible hydraulic hoses from the cooler
matrix.
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