Bomag BW 156 D-3 Service Manual page 136

Service Training
The fastening eyes for the steering cylinders are welded to the front console.
When turning the steering wheel the steering cylinders will extend or retract respectively, whereby the
piston rods swivel the front console around the vertical pin. The machine articulates and steers.
All bearing points on the articulated joint are maintenance free and do not require and lubrication.
BW 156/177 D-3/PD-3 - F 8 -
BW 178/179 D-3/PD-3