5-33
MAINTENANCE
AFTER THE INITIAL 50 HOURS (ONLY FOR NEW MACHINES)
REPLACING THE HYDRAULIC OIL
RETURN FILTER
• Stop the engine and allow each part of
the machine to cool down before
performing maintenance.
· The engine, the hydraulic system and
many other parts of the machine are
hot immediately after the engine is
stopped. Touching these parts will
cause burns.
· The hydraulic oil is also hot and under
high pressure.
Be careful not to touch the hydraulic
oil when loosening the cap or plug.
Working on the machine under these
conditions could result in burns or
injuries due to the hot oil spurting out.
• Before performing maintenance on the
top of the machine, clean the place you
will work on and observe the following
to prevent falling.
· Do not spill oil or grease.
· Do not leave tools scattered around.
· Watch your step when walking.
• Never jump down from the machine.
Use the steps and handrails when
climbing up and down the machine, and
always support your body at three
points with your hands and feet.
• Oil may spurt out if caps or filters are
removed or pipes are disconnected
before releasing the pressure in the
hydraulic system.
· Press the air breather button to relieve
the internal pressure from the tank.
· When removing plugs or screws, or
when disconnecting hoses, stand to
the side and loosen them slowly to
gradually release the internal pressure
before removing.
1. Press the air breather button (2) to relieve
the internal pressure from the tank.
2. Loosen the bolts and remove the flange
(4).
3. Remove the return filter (5).
4. Install a new return filter.
5. Install the flange (4) on its original position.
6. Inspect the level with the sight gauge (1),
and replenish if the level is too low.
Refer to “Inspecting the hydraulic oil tank
level and replenishing” on page 5-24.
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