Test - Doosan DX140R Shop Manual

TEST

1. Pneumatic pressure test
A. After the reassembly of the carrier and the sun
assemblies, loose bolts of the ring gear, place the
pneumatic test jig, and tighten 4 bolts again. At this
time, make sure that the pressure gauge is set to
zero.
B. Supply air through valve until the pressure gauge
points 2 kg•cm
the pressure gauge for 3 minutes.
C. Remove the jig after the pneumatic pressure test.
2. Noise and abnormal sound test
A. After the pneumatic pressure test, fill the reduction
gear with gear oil of 1 liter and connect it to test
motor.
Swing Reduction Gear
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2
and check if there is any change in
Figure 77
Figure 78
Figure 79
SP000921