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.

ELBOW

1/2 NPT HEX NIPPLE

FIGURE 9 - ELBOW FITTING IF NEEDED

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).

ITEMS

 

INCLUDED IN

 

MAINTENANCE

ITEMS

KIT

INCLUDED IN

 

REBUILD

 

KIT

FIGURE 10 - MAINTENANCE KITS

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BENDIX SD-08-187 manual Assembly, Mounting the Puraguard System Filter