Maintenance - ORELL LHC Mode D'emploi

10
Fan housing Removethecoolermatrixwhencleaningthe
insideofthefanhousing.Tocleantheinsideofthefan
housing,usecompressedair.Blowwithcompressedairfrom
thehydraulicmotorsidethroughthefanguard.

Maintenance

ORELL Tecshall 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 hydraulic 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 7.
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 7.
3 Connect the flexible hydraulic hoses to the cooler
matrix. See Figure 4.
4 Connect the hydraulic motor power supply.
5 Proceed to Prior to start-up and At start-up
Removing the hydraulic motor and the fan
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. Prior to maintenance,
disconnect the hydraulic motor power supply.
Important Risk of damage to the hydraulic system.
Contamination, water and air will increase wear on hydrau-
lic components, which could lead to breakdown. The most
important practice to observe when working on the hydrau-
lic system is cleanliness.
Note! Some fan hubs are fixed, see Figure 9, and some are
detachable, see Figure 10 A and Figure 10 B. The fan is
balanced together with the hub as from size LHC-033.
1 Turn off the system.
2 Disconnect the hydraulic motor power supply.
ORELL Tec LHC AIR OIL COOLER |
Installation and servicing manual | English
3 Secure the hydraulic motor.
4 Unscrew the screws with washer fixing the motor
attachment to the fan housing. See Figure 8.
5 Unscrew the screw with washer fixing the fan to the
motor shaft. See Figure 9. Pull with care the fan and
hub from the motor shaft. Use a puller if required.
6 Unscrew the screws fixing the motor to the motor
attachment. See Figure 11.
7 Remove the motor.
If further dismounting of the fan is required, label all
details to ensure correct mounting, first of all with
regard to balance and direction of rotation.
See Figure 12.
Mounting of the hydraulic motor and fan
Note! There are models with fixed hub (see Figure 9) and
models with detachable hub (see Figure 10 A and Figure 10 B).
The fan is balanced together with the hub as from size LHC-033.
1 Secure the hydraulic motor to the motor attachment.
See Figure 11.
2 Fit the hub groove to the motor spline. Lube the hub
with ethanol and secure the fan/hub to the motor
shaft. If required, knock carefully with e.g. a rubber
mallet. Use Loctite® on the screw and secure the
fan/hub on the motor shaft with screws. See Figure 9.
3 Make sure that the fan is fitted to the motor shaft
without too much play.
4 Place the motor attachment with fan, fan guard and
motor in the fan housing.
5 Adjust the fan guard and motor and secure the motor
attachment in the fan housing with screws.
See Figure 8.
6 Make sure that the fan is centered and rotates freely
(using hand force). If required, adjust the location of
the fan guard and motor.
7 Check the screws for tightness.
8 Connect the hydraulic motor power supply.
9 Proceed to Prior to start-up and At start-up.