5-41
MAINTENANCE
EVERY 1000 HOURS
INSPECTING AND ADJUSTING THE
ENGINE VALVE CLEARANCE
This operation requires experience. Ask your
service dealer for it.
REPLACING THE AIR BREATHER (IF
EQUIPPED)
Oil may spurt out if caps or filters are
removed or pipes are disconnected
before releasing the pressure in the
hydraulic system.
• Gradually loosen the vent plug to relieve
tank pressure.
1. Open the engine hood.
2. Slowly loosen the air bleeding plug (2) to
relieve the internal pressure, and then
remove the plug.
3. Turn the air breather (5) counterclockwise
by hand or with the wrench and remove it.
4. Apply a thin layer of oil on the packing of
the new air breather
5. Install the new air breather by hand.
· Tightening torque: Max. 5 N·m
Note: For a machine equipped with the air
breather, no pressurization is necessary.
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