Fig. 95
1) 61 to 75 Nm tightening torque alternately on 7
screws.
2) Insert commutator completely with new seal.
The flat side of the seal faces towards the outside.
3) Before assembling the drive shaft thoroughly
grease the space between the dashed lines.
5.3.3 Steering valve
The steering unit works hydrostatically, i.e. there is no mechanical
connection between the steering wheel and the wheels to be
steered (articulated joint, drum, etc.). The mechanical connection is
replaced by hydraulic piping and hoses between the steering unit
and the steering cylinder(s).
Notes on repair
Hydraulic system – Description of hydraulic components
BW 900-50
112
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