Volvo VAH 2013, Руководство оператора, Страница: 124 / 175

120 Operator's Manual Vehicle Maintenance VN,
VHD
Air Tanks
DANGER
Drain the air system tanks at the recommended intervals. If condensation
accumulates, moisture can enter the brake system air valves, causing corrosion or
clogging. The safety of the brake system could be compromised, leading to an
accident causing severe personal injury or death.
WARNING
When draining the air tanks, DO NOT look into the area of the draining air. Dirt or
sludge particles may be in the air stream that could cause eye injury.
Air tanks should be drained daily. Make sure the drain cocks close properly after
draining. Empty moisture from air tanks by pulling the drain valve lanyard or pull
cord. The tanks should be checked for condensation fluid, even if an automatic drain
valve is installed.
It is very important that the air system is kept clean. If sludge or oil is found in
the drainage or an excessive amount of fluid is drained out of the tanks see your
authorized VOLVO Truck dealer.
Air Dryers
Air dryers have a regeneration system that cleans out the accumulated moisture but
eventually the drying medium will reach the end of its useful life. See your authorized
VOLVO Truck dealer.
Effective mid-September 2008, all VOLVO chassis are equipped with air dryers
which utilize an oil coalescing desiccant cartridge which removes atomized oil and
other particulate matter from the air system. The oil coalescing desiccant cartridge
must be changed yearly. Refer to the specific air dryer service literature for detailed
information.
The coalescing air dryer filter needs to be replaced every twelve months.
Dryer manufacturers recommend changing the cartridge every 2 to 3 years but the
intervals need to be adjusted for vehicle application. In some climates, the cartridge
may have to be changed every year. See your authorized VOLVO dealer.