Preventive Maintenance; Maintenance - OLAER LDC Manual De Instruccion

OLAER/OA-Technik LDC AIR OIL COOLER |
8
• all hydraulic connections are tight
• 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
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 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 LDC 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.
The cooler matrix is designed for maximum allowed dynamic
working pressure of 14 bar.
Do not overload the DC motor. See identification plate.
Note! Use hearing protection when standing in the imme-
diate vicinity of an operating air oil cooler for long periods
of time.

Preventive maintenance

Preventive maintenance work must be carried out at regular
intervals. Make sure that:
• there is no abnormal noise or vibrations
• air oil cooler is securely fixed
• the cooler matrix is clean - debris will reduce the
cooling capacity
• the air oil cooler is free from damage,
replace damaged components
• the air oil cooler is free from leaks, take appropriate
measures,
• warning labels are in good condition,
replace any damaged/missing label immediately.
Annually:
Check the electrical installation.
With DC motor | Installation and servicing manual | English
Cleaning
Precaution
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 DC-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 7.
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.
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.
Dismounting the cooler matrix
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.
6. Unscrew the screws with washers fixing the cooler
matrix to the fan housing. See Figure 8.
7. Remove the cooler matrix.
Mounting of the cooler matrix
1. Locate the cooler matrix.
2. Fit the cooler matrix to the fan housing. See Figure 8.
3. Connect the flexible hydraulic hoses to the cooler
matrix. See Figure 4.
4. Connect the electric motor power supply
5. Proceed to Prior to start-up and At start-up.