2 Loosen the nuts of the side screws on the bearing
in
ques-
tion and on both adjacent bearings, Fig 10-1 (A).
3 Lift the distance sleeve
3V86B46 into position on the side
screw. One or t w o nut s ca n be loosened simulta neously.
4 Screw on the hydraulic tool 3V86B78
a nd proceed w ith open-
ing of th e side screw nu ts (A).
5 Loosen the nuts of the main bearing screws
on the bearing
in q uestion a s sh own in F ig 10-1 (B ).
Use of hydraulic cylinders
Hydraulicoil
DISMANTLING
1. Screw on cylinders by hand
2. Connect hoses, open valve.
Tighten cylinders by hand.
3. Screw cylinders 180˚
counter -clockwise.
4. Close valve, rise pressure.
5. Open the nut about half a turn.
6. Open release valve, remove tool.
Hydraulic cylinder combination
Screw
Hydraulic tool
Cylinder
Sleeve
Pin
Action/Screw
A
1
A
2
Main bearing and thrust
bearing screws
3V86B78
3V86B46
4V86B11
B
1
B
2
Main bearing screws
3V86B78
3V86B46
4V86B11
Comments
Hydraulic pressure
Loosening
A
1
A
2
B
1
B
2
One by one in order according to free choice.
Two nuts per side can be loosened simultaneously.
Always loosened simultaneously.
B
1
B
2
A
2
B
1
B
2
A1A
2
Tightening
Simultaneously handtight with pin 4V86B02 (B11) only.
A
2
bolt tensioned first with 200 bar hydraulic pressure
and the nut turned with pin to contact.
Tightened simultaneously with full hydraulic pressure.
Tightened one by one in order according to free choice
with full hydraulic pressure.
615...635 bar
615...635 bar
200 bar
615 bar
615 bar
Main bearing screws
3V86B79
3V86B39
4V86B02
A
1
A
2
B
1
B
2
Rear side
Engine Block with Bearings, Cylinder and Oil Sump
34SG-9701
Содержание 41508
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Страница 12: ...Appendix B Welding Precautions 200147...
Страница 22: ...Fuel Lubricating Oil Cooling Water 34SG 200303 03...
Страница 29: ...A Ap pp pe en nd di ix x A A E En nv vi ir ro on nm me en nt ta al l H Ha az za ar rd ds s 2 20 00 03 32 21 1...
Страница 73: ...Maintenance Tools 32 9801...
Страница 115: ...Engine Block with Bearings Cylinder and Oil Sump 34SG 9701...