Bendix Commercial Vehicle Systems PURAGUARD SYSTEM FILTER 7/04 - Manual (Page 5)

5
ASSEMBLY
1. Coat the drain valve threads with a liquid pipe thread
sealant. Install the drain valve using two wrenches -
one at the base of the PuraGuard
® system filter and
one on the drain valve, using a maximum final torque of
130-170 in. lbs.
2. The threaded top of the sump housing is pre-installed
into the head of the PuraGuard ® system filter. Check
that this connection is fully hand-tight before proceeding
with the installation.
3. The head cover of the PuraGuard ® system filter has an
arrow symbol showing the direction that the air must
be supplied into the head (see Figure 1). Align the
PuraGuard
® system filter correctly (the label may not
be facing outwards) and then insert the four bolts through
the mounting bracket holes into the PuraGuard
® system
filter head. Tighten to approx. 15 ft. lbs.
RETROFIT: LOCATING THE PURAGUARD ®
SYSTEM FILTER ON THE VEHICLE
1. The PuraGuard ® system filter must be mounted vertically
(±5° ) and must not be exposed to direct wheel splash
(located behind axle mud flap is acceptable).
2. Locate the PuraGuard ® system filter as close to the
first (Supply) reservoir as possible.
(a) For vehicles with air dryers, mount the
PuraGuard
® system filter upstream of the supply
reservoir (see Figure 3).
(b) For vehicles without air dryers, install the
PuraGuard
® system filter downstream of the supply
reservoir (wet tank) (see Figure 4). Both the primary
and secondary reservoirs will receive their air supply
from the discharge of the PuraGuard
® system filter and
depending original vehicle hose arrangement, extra
fittings may be required.
3. To minimize vibration, mount the PuraGuard ® system
filter on a frame rail. If the vehicle requires the
PuraGuard
® system filter to be directly mounted to the
reservoir, be sure to only use a high strength nipple
fitting. (See further notes under Connecting the Air
Hoses.)
4. Do not locate the PuraGuard ® system filter near heat
producing components such as the vehicle exhaust and
provide adequate clearance from moving components
e.g. drive shaft, suspension, pitman arm, etc.
5. Locate the PuraGuard ® system filter on the vehicle so
that a minimum of 12 inches clearance horizontally (90°
minimum arc) to allow servicing. This will permit, for
example, a strap wrench to be used when replacing the
filter.
6. Be sure that there is sufficient room to attach hoses to
the PuraGuard ® system filter.
7. To permit draining of collected contaminants, at least a
6 inch clearance below the PuraGuard ® system filter is
recommended. Nominal clearance above is required.
MOUNTING THE PURAGUARD ® SYSTEM
FILTER
1. After positioning the PuraGuard ® system filter according
to the installation requirements, mark the position of
the mounting holes on the frame rail. Note: Check the
vehicle manual before drilling a frame member.
2. Use vehicle manufacturer guidelines for mounting
hardware (use at least grade 5 hardware).
FIGURE 10 - MAINTENANCE KITS
ITEMS
INCLUDED IN
REBUILD
KIT
ITEMS
INCLUDED IN
MAINTENANCE
KIT
FIGURE 9 - ELBOW FITTING IF NEEDED
1/2 NPT HEX NIPPLE
ELBOW