36
2-9.
LUBRICATION OF CHISEL
When greasing, make sure the chisel (1) is firmly pressed into the chisel holder and do not
apply the grease excessively. Otherwise, the grease will go into the top of the chisel, which
could damage the dust and oil seal installed at the lower cylinder due to its pressurization.
This would lead not only a cause for malfunction of the breaker but also contaminate the
hydraulic oil and deteriorate the pump performance of an excavator.
After greasing the hammering must be only downward for 5 minutes.
WARNING
CAUTION
If the grease is not applied correctly, it may cause a seizure of Chisel bushing and Chisel.
CAUTION
1
1
1
×
○
When the breaker is brand new or right after
reassembly, push the chisel into the breaker and
grease until the grease comes out from the bottom
of chisel bush(1).
When there is no grease between chisel and chisel
bush it will cause seizure between the chisel
and the bushing.
Please operate the breaker with vertical position
for 5 minutes after the grease-up.
Содержание TNB-08M
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