Bomag BW 177 D-4 Operating Instructions Manual page 103

Checking the moisture level of the dry-
ing agent
Fig. 159
Check the moisture indication pearl (Fig. 159)
l
inside the inspection glass of the drier/collec-
tor unit.
orange = Drying agent o.k.
colour-
less = moisture level of drying agent too
high.
Inform the service department. Replace drier/
l
collector unit, check air conditioning system.
Caution
!
Have the drier/collector unit replaced by the
service department every year before the oper-
ating season.
Checking the condition of the drier/col-
lector unit
Caution
!
According to the regulation for pressure reser-
voirs all pressure reservoirs must be repeated-
ly inspected by a specialist. In this sense
repeated inspections are external examina-
tions, normally on pressure reservoirs in oper-
ation. In connection with this inspection the
drier/collector unit must be visually examined
twice every year. During these inspections
special attention must be paid to corrosion
and mechanical damage. If the reservoir is not
in proper condition it must be replaced for
safety reasons, as a precaution to protect op-
BW 177 D-4
Every 500 operating hours
erators and third parties against any danger
arising from the handling and operation of
pressure reservoirs.
Danger
!
Danger of injury!
In case of mechanical damage or corrosion on
this drier/collector unit this unit must be re-
placed, to avoid bursting and further damage.
Fig. 160
Check the drier/collector unit (Fig. 160) for me-
l
chanical damage or rust.
BOMAG 103