Fayat Group Bomag BW 138 AD-5 Operating Instruction, Maintenance Instruction page 202

Maintenance – As required
1
Fig. 207
Fig. 208
202
6. Check water output and spray pattern on
all nozzles (1) for both drums.
B-880-0070
7. Turn the rotary switch for pressure
spraying to "0" to switch the water spraying
system off.
8. Turn the ignition key back to position "0"
and pull it out.
B-SWI-1493
BW 138 AD-5