82
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Check the wear, deformation or crack of the chisel at an early time every 100
hours or every month.
Serviceability limit (outer diameter) of chisel
Model TNB-
08M
1M
2M
3MB
4M
5M
Brand New O.D A
(mm)
φ40
φ45
φ50
φ58
φ64
φ75
Serviceability Limit
O.D B (mm)
39
44
48.5
56.5
62.5
73
Model TNB-
6M
6E
7J
16K
110
141LU
151LU2
Brand New O.D A
(mm)
φ75
φ95
φ105
φ115
φ135
φ135
Serviceability Limit
O.D B (mm)
73
92.5
102
111.5
131
131
Model TNB-
27K
190LU2
230LU2
310LU1
60K
400LU2
Brand New O.D A
(mm)
φ140
φ146
φ160
φ178
Serviceability Limit
O.D B (mm)
136
141.5
155
173
If any amount of wear is larger than the lower table limit value, please replace it.
It will cause breakage of the breaker and the chisel.
A
A
B
B
CAUTION
CAUTION
When the wear amount
exceeds the limit values,
replace the chisel. It causes
chisel breakage.
When burr, swelling or chip is
found on the contact are of
retainer pins, remove it by
grinder.
When chip or crack is found
in the C section, replace the
chisel.
C
Содержание TNB-08M
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