Bomag BW 156 D-3, Service Manual

Page: 100 / 190

Service Training
BW 156/177 D-3/PD-3
BW 178/179 D-3/PD-3
- DTr 12 -
Fig. F11:
Checking the brake releasing pressure
If the brake valve does not open, no oil from the charge circuit will be guided to the brakes and the brake
discs cannot open.
• Install a pressure test port with a 60 bar pressure gauge to the brake releasing line
• Start the engine and release the brake (disengage the travel lever from the braking position)
Read the pressure gauge, nominal value 25 +/- 1 bar (charge pressure)
BW 156 / 177 D-3 and 156-179 DH-/PDH-versions
BW 178 / 179 D-3
Install pressure test
Install pressure test port
to bottom connection
port here