PREVOST GKN AXLES LIMITED KIRKSTALL DIVISION, Руководство по обслуживанию

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Section 16: SUPPLEMENT INFORMATION ON INDEPENDENT FRONT SUSPENSION (IFS)
16-32
The primary air tank is located above R.H. wheel
of drive axle.
To increase primary air tank volume, a supple-
mentary air tank is added in series to the primary
air tank. This supplementary tank is located un-
derneath vehicle forward of tag axle.
These tank are provided with a bottom drain valve
(Fig. 25). It is recommended to purge them by
their bottom drain valve every 12,500 miles
(20 000 km) or once a year, whichever comes
first.
This tank is located in front wheelhousing, be-
tween air springs. The tank is installed vertically
and is provided with a bottom drain valve (Fig.
25).
It is recommended to purge the tank by its bottom
drain valve, every 12,500 miles (20 000 km) or
once a year, whichever comes first.
The accessory air tank is installed next to the
secondary air tank. The tank is installed vertically
and is provided with a bottom drain valve (Fig.
25).
It is recommended to purge the tank by its bottom
drain valve, every 12,500 miles (20 000 km) or
once a year, whichever comes first.
A remote drain valve is located in steering com-
partment (Fig. 28) at bottom of the accessory air
filter. Refer to Section 12, paragraph "4. Acces-
sory Air Filter" of the maintenance manual for daily
purge procedure.
FIGURE 28: STEERING COMPARTMENT
12089M
Two expansion tanks are located in front wheel-
housing. These air tanks are located behind sec-
ondary and accessory air tank. Also, six expan-
sion tanks are located near rear air springs (Fig.
25). Expansion tanks are connected in series with
air springs. Expansion tanks are used to lower the
stiffness of the air spring. They are provided with a
bottom drain valve.
It is recommended to purge them, with all other
tanks, every 12,500 miles (20 000 km) or once a
year, whichever comes first.
11.3 Air System Emergency
Fill Valves
The vehicle is equipped with two air system
emergency fill valves to supplement the air sys-
tem when air pressure is low and engine cannot
be operated.
The rear valve is located in engine compartment
and accessible from engine R.H. side door. On
XL-40 & XL-45E, the valve is positioned over
battery assembly, close to door hinge (Fig. 29).
On XL-45 vehicles, the valve is positioned under
back up alarm, close to L.H. side of door opening
(Fig. 30).