Peterbilt 579 Operator's Manual page 286

AIR SYSTEM
WARNING!
If the supply and service tanks are
not drained at the recommended fre-
quency, water could enter the air lines
and valves. This could cause corro-
sion or blockage, which could compro-
mise the brake system safety and po-
tentially cause an accident involving
death or personal injury.
5
5-50
Daily
•
Drain moisture from the supply
and service air tanks.
•
Operate air devices to circulate
lubricants within the unit.
Y53-6047–2C
Periodically
•
Clean filter screens ahead of the
valves by removing the screens
and soaking them in solvent. Blow
them dry with pressurized air
before reinstalling them.
(04/13)