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C 9.92
Operating Instructions
186 153 146
Maintenance as required
* Option
Replacing the hydraulic return filter for the
attachment variable pump*
The hydraulic return filter with service indicator is located at
the rear right side under the cabin.
ATTENTION
The hydraulic return filter must be replaced
when the pressure at the service indicator
(1) reaches 3 bar with an attachment (eg cyl-
inder mower) fitted and the engine at idle
speed.
- Depressurize the hydraulic system by turning off the
attachment.
- Remove the hydraulic return filter (2) with a filter
wrench.
ATTENTION
Observe the instructions for handling fuel, flu-
ids and lubricants.
- Clean the mating surface of the filter mount.
- Coat the new gasket with oil.
- Install and hand tighten the new filter cartridge with
the new seal in the filter mount.
- Make a trial run and check for leaks.
- Check the hydraulic oil level.
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