Soosan SB121 - Wear Tolerance; Front Cover and Thrust Bush Wear Limits

Soosan H
y
draulic Breaker
Soosan Heav
y
Industries Co.
,
Ltd
7. Wear Tolerance
Wear tolerance of each kind expendable parts come to decide. The usage of exceeding the wear tolerance
causes fatal damage to breaker. Prevent the damage through the regular inspection and exchange of
expendable parts including seals and all kinds of bushes. Our company is not responsible for the flaw using
in exceeding the wear tolerance of the expendable parts.
7.1 Seal & O-Ring
Quality Guaranteed Period : 3 months
Since hydraulic breaker operates at high-pressure and high-temperature, leakage or scratch could be
occurred by friction, wear and breakage of seals. Considering pressure, temperature, viscosity of oil, a little
leakage is accepted to be normal. But in case of abnormal leakage, replace as a new ones. To prevent fatal
defect periodical replacement is carried out every 3months without external leakage of breaker.
Although the breaker is not operated in a long time, replace seals periodically to prevent rust, corrosion of oil
and transformation of seals.
7.2 Front cover, Thrust bush
Unit(mm)
MODEL
New
Inside Dia.
Reject
Inside Dia.
SB10II
40 42
SB20II
45 47
SB30II
53 55
SB35II
60 62
SB40II
68 71
THRUST
BUSH
SB43II
75 79
SB45
85 89
SB50
100 105
SB60
125 130
SB70
135 140
SB81
140 146
SB100
150 156
SB121
155 161
SB130
165 171
SB140
165 171
FRONT
COVER
SB151
175 181
(Measure at 10mm)
FRONT COVER
(Measure at center)
THRUST BUSH