25. Procedures for Maintenance
3-47
25-4-1.
Greasing the swing gear and the swing bearing
1) Grease the swing gear and bearing through the grease
nipples indicated with the arrows in the right figure, us-
ing a grease gun.
2) Swing the upperstructure little by little to grease them
until the upperstructure makes a full turn.
25-4-2. Draining the water and deposits in the fuel tank
Things to prepare
• Container for fuel waste
1) Swing the upperstructure so that the drain cock under
the fuel tank is positioned in the middle of the right and
left tracks.
2) Remove the bottom cover and put the container for fuel
waste under the drain cock.
3) Remove the drain plug to drain the water and dirt de-
posits in the fuel tank.
Take care that the fuel does not splash your body.
4) When clean fuel starts coming out, securely reinstall the
drain plug and the bottom cover.
25-4. Maintenance every 50 service hours
Do not swing the upperstructure while greasing.
Swing the upperstructure after each stage of greas-
ing is completed to avoid serious bodily injury.
Keep sparks, flames and lit cigarettes away.
Swing gear
Swing bearing
015604-00E
Cover
015592-00E
015605-00E
Viewed from under the machine body
Drain plug
Bolt
Bolt
Cover
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