BENDIX BW2083 Manuale Utente

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WARNING! PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO 
AVOID
PERSONAL INJURY OR DEATH:
When working on or around a vehicle, the following
general precautions should be observed at all times.
1.
Park the vehicle on a level surface, apply the
parking brakes, and always block the wheels.
Always wear safety glasses.
2.
Stop the engine and remove ignition key when
working under or around the vehicle.  When
working in the engine compartment, the engine
should be shut off and the ignition key should be
removed. Where circumstances require that the
engine be in operation, EXTREME CAUTION should
be used to prevent personal injury resulting from
contact with moving, rotating, leaking, heated or
electrically charged components.
3.
Do not attempt to install, remove, disassemble or
assemble a component until you have read and
thoroughly understand the recommended
procedures.  Use only the proper tools and observe
all precautions pertaining to use of those tools.
4.
If the work is being performed on the vehicle’s air
brake system, or any auxiliary pressurized air
systems, make certain to drain the air pressure from
all reservoirs before beginning ANY work on the
vehicle.  If the vehicle is equipped with an AD-IS
air dryer system or a dryer reservoir module, be
sure to drain the purge reservoir.
5.
Following the vehicle manufacturer’s
recommended procedures, deactivate the electrical
system in a manner that safely removes all
electrical power from the vehicle.
6.
Never exceed manufacturer’s recommended
pressures.
7.
Never connect or disconnect a hose or line
containing pressure; it may whip. Never remove a
component or plug unless you are certain all
system pressure has been depleted.
8.
Use only genuine Bendix
®
 replacement parts,
components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent
size, type and strength as original equipment and
be designed specifically for such applications and
systems.
9.
Components with stripped threads or damaged
parts should be replaced rather than repaired.  Do
not attempt repairs requiring machining or welding
unless specifically stated and approved by the
vehicle and component manufacturer.
10. Prior to returning the vehicle to service, make
certain all components and systems are restored
to their proper operating condition.
11. For vehicles with Antilock Traction Control (ATC),
the ATC function must be disabled (ATC indicator
lamp should be ON) prior to performing any vehicle
maintenance where one or more wheels on a drive
axle are lifted off the ground and moving.
Note: The Trailer System-Guard
 air dryer is intended to
remove moisture and other contaminants normally found in
the air brake system.  Using alcohol, anti-freeze, oil or other
de-icing substances in the brake system can damage the
air dryer and will therefore void the Trailer System-Guard
air dryer warranty.
OPERATION & LEAKAGE TESTS
Build the air system to governor cutout. Shut off the engine.
Using a soap solution, check all lines and fittings leading to
and from the Trailer System-Guard
 air dryer for leakage
and integrity. Repair any excessive leaks - exceeding a 1"
bubble in 5 seconds-before restoring vehicle to service.
OPERATION: GENERAL
The trailer dryer works as a buffer, removing moisture during
exposure to wet air (trailer hooked to a tractor without an air
dryer, or trailer is parked for extended periods with open
glad hands) and giving up water vapor when reconnected to
a tractor equipped with an air dryer.  The Trailer System-
Guard
 air dryer depends on dry tractor air to remove water
vapor from the desiccant collected during wet times.
TRAILER SYSTEM-GUARD
 AIR DRYER
REMOVAL
This removal process is presented for the replacement of
the Trailer System-Guard
 air dryer.
1. Identify and disconnect the four air hoses from the Trailer
System-Guard
 air dryer.
2. Remove the locknuts, washers and grommets that secure
the Trailer System-Guard
 air dryer and remove it from
the vehicle.
REPLACING OR RETROFITTING THE TRAILER
SYSTEM-GUARD
 AIR DRYER: GENERAL
The following instructions are presented for reference
purposes only, since Bendix aftermarket replacement Trailer
System-Guard
 air dryers are packaged with the most up-
to-date installation instructions. The instructions packaged
with the Trailer System-Guard
 air dryers should be followed
in lieu of those presented here.
MOUNTING THE TRAILER
SYSTEM-GUARD
 AIR DRYER
1. After positioning the Trailer System-Guard
 air dryer
according to the location requirements, mark the position
of the predrilled mounting holes on the selected location.
A template for the mounting pattern is included on page
4.   Note:  Only three of the four mounting holes
must be used for securing the air dryer to the frame
rail.
  Securing the air dryer at all four mounting holes
can lead to damage and eventual failure of the air dryer.
Any three of the four mounting holes can be used for
installation. Selection is at the discretion of the installer.
 If mounting the dryer on a trailer cross member center
the template to maximize clearance and facilitate
installation. Note:  Check the vehicle manual before
drilling the selected location.