Bomag BW 156 D-3 Service Manual page 138

No steering / steering sticky / end stops are not reached
(travel system OK)
Trouble shooting single drum rollers generation 3
Check the steering
pressure Fig. L1
OK ?
no
Check steering/
charge pump Fig. L2
OK ?
yes
Check the steering
cylinders Fig. L3
OK ?
yes
Replace/repair the
steering valve
Service Training
Check moveability of
yes
articulated joint and
steering cylinders
Replace/repair the
no
steering/charge
pump
Replace the
no
respective steering
cylinder
FTr 2