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4.19.6
CHECKING GREASE IN SWING GREASE BATH
• When grease quality deteriorates, it can cause damage on the pinion shaft of the swing reduction unit and the
swing bearing.
When the swing bearings gears are damaged or the grease is deteriorated and needs to be replaced, contact
your KOBELCO authorized dealer.
Because the upper structure needs to be disassembled to replace grease for the swing grease bath, contact
your KOBELCO authorized dealer.
• Do not reuse the removed packings (3) and (7) and be sure to replace them with new ones.
1
2, 3
1.
Loosen bolt (1) at the forward side of the upper
structure, and remove cover (2) and packing (3) for
inspection.
2.
After inspection, replace with new packing (3), and
after cleaning cover (2), apply Loctite #572 and then
install it.
3.
If water is deposited, loosen bolt (4) and spring
washer (5) in the lower side of the lower frame, and
remove cover (6) and packing (7) to drain the water.
The grease may become white due to slight
contamination of water.
If water contamination is found, replace the grease
with new grease after sucking the old grease by
using a grease vacuum pump.
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