Engine Exhaust Braking System; Hazard Warning Lights - Winnebago Journey Owner's Manual

SECTION 2
DRIVING YOUR MOTOR HOME
left of the ignition switch. Push the knob in to re-
lease the brakes.
Parking Brake Knob
Use the parking brakes whenever the vehicle
is parked. Never try to drive the vehicle with the
park brake applied. This can cause excessive
wear on the brakes and may damage the transmis-
sion.
NOTE: It is normal to hear an occasional burst
of air pressure from the rear of the vehi-
cle. This is an automatic moisture purg-
ing feature of the air brake system. See
the Brakes section of your Freightliner
chassis manual for instructions on peri-
odic draining of brake air tank.
ENGINE EXHAUST BRAKING SYS-
TEM
To Use the Exhaust Brake: The exhaust brake
activation switch is located on the lower left side
of the dash. Press and release the ON side of the
switch to activate the exhaust brake system. The
exhaust brake will operate whenever you let up
on the throttle pedal while the switch is ON.
Press and release the OFF side of the switch to
deactivate the exhaust brake system and return to
chassis brakes alone.
2-4
Exhaust Brake Switch
How It Works: The exhaust brake generates
"braking" power by controlled restriction of the
engine's exhaust gas flow.
When the exhaust brake is activated, a valve
closes off the engine's exhaust causing the ex-
haust back pressure to increase, which causes the
vehicle to slow down.
The increased back pressure would normally
stop the engine except the forward momentum of
the vehicle keeps the drivetrain and the engine
turning.
This controlled back pressure helps to regulate
a vehicle's downhill speed, such as on mountain-
ous or hilly roads. It also provides "braking" on
level or near-level roads.
HAZARD WARNING
LIGHTS
The hazard warning flasher switch is located
on the underside of the steering column near the
signal/cruise lever. Pull the switch button out-
ward from the column to activate the flashers. To
cancel flashers, push the switch button inward to-
ward the column. See also Section 3 for further
operating information.