Fayat Group Bomag MPH 122-2, Operating & Maintenance Instructions, Page: 91 / 198

Operation of binder dosing system
BOMAG 91 MPH 122-2
Interrupting work
l
Set the selector switch for spraying/circulation
(k) to position "Circulation".
All nozzles of the opened sections are closed.
i Note
For longer breaks set the binder pump to a lower
flow rate, to keep the binder circulating.
Changing the binder
!
Danger
If you want to change to emulsion, the spray
bar needs to be completely emptied before-
hand.
l
Completely drain the bitumen system, see
chapter "Blowing out bitumen system and
spray bar".
5.5 Changing the bitumen tank
Fig. 193
When the bitumen tank is empty the pressure
reading in the spraying bar pressure gauge (Fig.
193) and in the binder pump pressure gauge (d)
will drop.
Fig. 194
l
Set the selector switch for spraying/circulation
(k) (Fig. 194) to position "Circulation".
l
Set the binder quantity potentiometer (m) to
zero flow.
l
Set the reaction water flow quantity potentiom-
eter (l) to zero flow.