Schwing SPB 28, Руководство по эксплуатации

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104
Maintenance
SPB Operation Manual
Unscheduled maintenance
The amount and quality of service you get from your
unit varies according to the conditions to which the ma-
chine is subjected. Differences in concrete types and
pressure play a major role in the wear of machine com-
ponents. Periodically, the rams and material cylinders
must be changed.
Pipewall thickness
• Check the wall thickness of your pipeline once a
week. This should be checked with an ultrasonic
thickness tester. These testers are available from
suppliers of quality control and testing equipment.
CAL
ON
+
-
OFF
Figure 16
Ultrasonic tester
Main areas of wear
Delivery pipeline tends to wear about 4 inches beyond
the flange at the end concrete enters (Figure 17).
4”
fig1.eps
Figure 17
End of boom pipe where concrete enters
Elbows tend to wear on the upstream side, or where
concrete enters the elbow (Figure 18).
Figure 18
Elbow wearing as concrete enters
Extend the life of your system
The lifetime of pipe and elbows can be extended by ro-
tating each on a regular basis. Turn each pipe as well
as complete sets of elbows 180˚ so concrete enters the
opposite end.
Rotate 180
Figure 19
Rotate pipe and elbows 180˚