Monaco 2008 Knight, Руководство пользователя

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chassIs InformatIon — 10
19
2 0 0 8 K n I G h t
Park & Emergency Brake System
The Park and Emergency Brake System
(Spring Brakes) applies to the rear drive axle
only. When the park brake is applied, air is
released from the rear brake chambers, allowing
the large spring in each rear brake chamber
to manually push the brake pads against the
rotor. The air system must be charged above
35 psi to allow the park brake to release.
Pushing down on the park brake handle charges
the rear brake chambers with air pressure,
overriding the emergency brake springs and
releasing the brakes. In the event of air loss
while the vehicle is under operation, the park
brake will automatically apply (this occurs at
approximately 30 psi), acting as an automatic
emergency brake system.
When preparing to depart, allow the air system
to achieve full air pressure as indicated by the air
gauge needles. Listen for the air dryer to purge,
indicating that the air dryer is functioning.
Look and listen for abnormalities. Abnormal
air pressure readings by either needle of the air
gauge alerts the operator to have the air system
checked to avoid an untimely failure.
Should a failure occur in the air system,
preventing the air pressure from building, it
may become necessary to “cage” the spring
brakes (
“cage” procedure in Section 2 Towing
Procedures - Disabling Parking Brake
). This
is an emergency procedure only. Caging the
rear air brake chambers manually overrides the
spring brakes and allows the vehicle to move.
This procedure does not affect normal service
braking.
NOTE
When the park brake is released, the
Park illumination lamp will remain lit
until air system pressure is above 65 psi.
WARNING
When parked with the air tank not
depleted, there is possibility of an
accidental release of the parking brake.
Traveling with small children and/or
pets may require a small block to be
fabricated to prevent accidental release.
The block should be placed under the
knob on the dash panel. A wooden
clothes pin, clasped at the base of the
shaft, will work.
Automatic Slack Adjuster
The braking system is equipped with automatic
slack adjusters. As brake lining wears, the slack
adjusters will automatically ratchet on the return
stroke as needed. This ratchet action will keep
the brake lining at proper adjustment. Automatic
slack adjusters and the connecting S-cam shaft
require periodic lubrication and inspection.
NOTE
Replacement parts should be of the
same original equipment size and type.
Mixing brake components may result
in unequal braking action. Brake
maintenance is not covered by the
manufacturer.
WARNING
Brake lining may contain asbestos
material and should only be serviced by
qualified service technicians who are
trained in the appropriate precautionary
procedures. If any loss of braking
effectiveness or abnormal braking
indications are noticed, the brakes and
slack adjusters should be inspected by a
qualified brake technician.
WARNING
Automatic slack adjusters are not
designed to be manually adjusted.
DO NOT manually adjust the slack
adjusters. If any loss of braking
effectiveness or abnormal braking
indications are noticed, the brakes and
slack adjusters should be inspected by a
qualified brake technician.
Brake Systems - Backup
The motorhome air braking system is equipped
with backup safety systems and warning alarms
in the event of air system failure. For example:
should the air compressor fail to charge the
air system and low air gauge readings go
undetected, a low air pressure warning buzzer
will sound and a low air pressure dash warning
indicator light will flash. These warning
indicators occur at approximately 65 psi.
This will alert the operator of an impending
situation. If the motorhome is allowed continued
operation, the pneumatic emergency spring
brake relay valve, installed in the air system,
senses the low air pressure condition and will
release the air charge from the spring brake air
chambers on the rear drive axle. In this case,
the park brakes will automatically apply at
approximately 30 psi. This safety backup system
acts as an automatic emergency brake system.