BENDIX SD-08-187 Manuale Utente

®

The  PuraGuard

®

 system filter is used to assist the

production of purified compressed air on high air use vehicles.

The PuraGuard

®

 system filter consists of a filter element

mounted in a die cast aluminum housing.  The sump
housing contains a drain valve for maintenance.  For ease
of serviceability, all maintenance kits do not require removal
of the PuraGuard

®

 system filter from its mounting on the

vehicle.

High air use vehicles (e.g. transit vehicles) may require the
air compressor to exceed its normal duty cycle.  The resulting
high compressor discharge temperatures can allow oil
aerosols to pass through the air dryer, condensing
downstream in air system components.

The PuraGuard

®

 system filter follows the air dryer in the system

and removes approximately 99% of oil aerosols.  On vehicles
not using an air dryer, the PuraGuard

®

 system filter follows

the supply (“wet tank”) reservoir (see Figures 3 & 4).

 (See Figure 2)

Compressed air passes through the supply port of the
PuraGuard

®

 system filter and travels downward through the

center of the filter element.  As the air passes through the
filter material, oil in liquid and aerosol form are removed and
collected in the sump.  The air travels back up from the
sump, through the PuraGuard

®

 system filter delivery port

and into the air system.

SPRING

FILTER

ELEMENT

HAS

O-RING

INCLUDED

DELIVERY

PORT

FILTER

ELEMENT

O-RING

SUPPLY

PORT

SPRING

LOCATOR

DRAIN

PORT

DELIVERY

PORT

SUPPLY

PORT

ONE SUPPLY & ONE DELIVERY PORT

(SEE ARROW SYMBOL ON PURAGUARD

®

SYSTEM FILTER TOP COVER FOR AIR FLOW)

DRAIN VALVE

MOUNTING

BRACKET

(2)

PURAGUARD

®

SYSTEM FILTER

HEAD

SUMP

HOUSING