SHB 28Z3 EN – Edition 2.0 * 28z3s510.fm 5-27
Hydraulic system
5.9 Swivel joint
8-port swivel joint
The swivel joint ensures the oil flow between the upper carriage and the undercarriage.
Replace the sealing rings
☞ Slacken circlip 11 on the lower side
☞ Pull the swivel joint apart
☞ Replace the sealing rings
☞ Push the swivel joint together again
☞ Insert circlip 11 again
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Pos. Port Pos. Designation
1a Pilot control pressure (PV) pilot oil supply unit 1-8 Sealing rings
2a and 4a Right-hand drive 9 PU prop ring
3a and 5a Left-hand drive 10 V sealing ring
6a and 7a Stabiliser blade 11 Circlip
8a Travelling drive tank line 12 Inside part
13 Outside part
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