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35
10.5.2 Checking the wear bushes
Note
The wear bushes and buffer ring must be replaced in
a suitablye
q
uipped workshop. Before fitting new
parts, remo
v
e any grease residues inside the lower
breaker part.
The inside diameter of the following wear bush has to
be checked e
v
ery time the working tool is changed
and at the latest e
v
ery
1
00 operating hours
:
CP 550
:
wear bush
CP 750 CP 4250
:
lower wear bush
I
f the diameter has enlarged due to wear, the wear
bush must be replaced.
A template is included in the deli
v
ery to check the
inside diameter.
The measured diameter must not e
x
ceed the ma
x
i
mum dimension.
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
Model
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
j
template
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
ÂÂÂÂÂÂ
max. permiss
ible diam.
CP 550
CP 750
CP
11
50
CP
16
50
CP 2250
CP 3050
CP 4250
8
0
1
00
11
5
1
35
1
50
16
5
1
8
0
8
3 mm
1
03 mm
1
20 mm
1
40 mm
1
55 mm
1
70 mm
1
8
5 mm
CP 750 CP 4250:
When the lower wear bushing is replaced, the inside
diameter of the upper wear bushing must be
checked.
I
f the diameter has enlarged due to wear, the wear
bush and the buffer ring, if e
x
isting, must be re
placed.
CP 550
CP 750
lower
hammer part
lower wear
bush
upper wear
bush
wear bush
upper wear
bush
lower ham
mer part
lower wear
bush
buffer
ring
CP 1150
CP 1650
CP 2250
CP 3050
CP 4250