Shop Manual

20-132
6. Rear ripper lifting speed
(Ascending)
(Descending)
Oil temperature: 40±5℃. The
ascending speed and
descending speed when the
center teeth tip of ripper off
ground of 50～150 mm under
the rated rotation speed of
engine.
mm/sec
220
170
198
153
7. Front scraper blade lifting speed
(Ascending)
(Descending)
Oil temperature: 40±5℃. The
ascending speed and
descending speed when the
bottom edge of scraper blade
off ground of 50～ 150 mm
under the rated rotation speed
of engine.
200
150
180
135
Hydraulic Sedimentation
1. Scraper blade oil cylinder extend
Oil temperature: 40±5℃.
The scraper blade suspense
vertically with regard to the
machine. Record the extend
value of oil cylinder.
mm/10 min.
Max. 10 Max. 20
2. Scraper blade oil cylinder retract
Oil temperature: 40±5℃.
The lower edge of scraper
blade contacts with ground
and front wheel is raised.
Record the retract value of oil
cylinder.
Max. 20 Max. 40
3. Rear ripper oil cylinder extend
Oil temperature: 40±5℃.
The ripper suspense. Record
the extend value of oil
cylinder.
Max. 10 Max. 20
4. Rear ripper oil cylinder retract
Oil temperature: 40±5℃.
The lower teeth of rear ripper
contact with ground and front
wheel is raised. Record the
retract value of oil cylinder.
Max. 30 Max. 50
Setting pressure of master overflow
valve
Right valve
Left valve
Oil temperature: 40±5℃.
Engine’s speed: High-speed
idle.
MPa 20
5.0
0

20
5.0
0

18.5
18.5