BENDIX TCH-001-058 Dépliant
Bulletin No:
Page: 2 of
TCH-001-058
2
© 2010 Bendix Commercial Vehicle Systems LLC All rights reserved. 5/2010 Printed in U.S.A.
COMPRESSOR
FRONT SERVICE
REAR SERVICE
D-2
®
GOVERNOR
AS PART OF
AD-IS
®
AIR DRYER
UNLOADER VALVE
WITH SILENCER
21
22
S
S C
UNL
C
COMPRESSOR
DISCHARGE
LINE
Discharge Line Unloading with DRO Unloader Valve
The second method of externally unloading the compressor is by using a separate DRO Unloader Valve.
This valve is also normally controlled by the air system governor and may be installed in parallel or in
series with the air dryer. The partial system sketch below illustrates the charging, treatment, and storage
portion of the system utilizing a DRO unloader valve in parallel as the means of unloading the compressor
in combination with the dryer.
This valve is also normally controlled by the air system governor and may be installed in parallel or in
series with the air dryer. The partial system sketch below illustrates the charging, treatment, and storage
portion of the system utilizing a DRO unloader valve in parallel as the means of unloading the compressor
in combination with the dryer.
Note the DRO valve can be used with any style Bendix
®
air dryer; however, the DRO valve will not prevent
turbocharged air loss.
The Silencer Kit for use with the DRO Unloader Valve is part number K029328.