CLEANING AND MAINTENANCE.
ROUTINE MAINTENANCE.
This is purely a guideline. Individual operating conditions should determine the true
interval. For further advice contact WANNER.
When the oil cooler is operating under correct conditions and is installed correctly, it
will require little maintenance.
The following inspections and maintenance checks are recommended.
Regularly check the hose connections for leaks and the integrity of the hose material.
The oil and the oil filter should be changed in accordance with the recommendations
laid out in the pump manual.
i.e. Initially after the first 100hrs of service, then simultaneously when the pump oil is
changed according to operating conditions.
The oil cooler is fitted with a filter clogging indicator which should be monitored
periodically. If the filter is found to be clogging prior to the established routine service
point, contact WANNER for a review of the overall pump system.
A spare oil filter is supplied with each hose kit for this first service.
Refer then to the Commissioning Procedure to ensure system is fully bled when re-
filled.
If the cooler is installed in a particularly dusty environment the heat exchanger should
be periodically cleaned with a soft brush only to avoid damaging the cooling fins.
CHANGING THE OIL AND OIL FILTER
The oil filter should be changed at the same time that the oil in the pump is changed
and in accordance with the recommendations laid out in the pump manual.
At this point the immediate area around the pump and oil cooler
installation should be prepared for an amount of oil spillage as this will be
inevitable and may cause a slip hazard!
Firstly, the pump should be isolated electrically so the oil cooler can be controlled
independently.
A suitable sized waste oil container will be required to dispose of the old oil. This will
depend on which pump the cooler is connected to.
Disconnect the discharge hose from the brass cap on top of the pump.
Place the end of the discharge hose in the waste container. The oil pump can now be
run to drain the oil from the pump and the oil cooler system.
Once oil has stopped flowing, the oil cooler should be switched off immediately to
avoid damage to the gear pump.
The filter can now be removed using a standard strap wrench.
Care must be taken, as the filter will still contain some oil.
Before fitting a new oil filter, the rubber seal on the filter should be wetted with new
oil.
The new oil filter can now be fitted, and should be tightened by hand.
To refill the system with new oil the commissioning procedure should be followed.
