SECTION 3
DRIVING YOUR MOTOR HOME
3-10
•
T/Toggle -
Pages through the screens of a menu.
•
H/Home -
Takes you back to the previous menu
page.
•
Up Arrow -
Scroll menu up. Highlights the next line
up on the menu.
•
E/Enter -
Enter the selected menu line.
•
Down Arrow -
Scroll menu down. Highlights the
next line down on the menu.
•
Favorite (Red Button) -
Returns to Start-up page.
See your chassis manual for detailed
instructions on using this feature.
PARKING BRAKES
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
transmission.
NOTE: It is normal to hear an occasional burst
of air pressure from the rear of the
vehicle. This is an automatic moisture
purging feature of the air brake system.
See the Brakes section of your chassis
manual for instructions on periodic
draining of brake air tank.
ENGINE BRAKE SYSTEM
400-hp Engine Chassis
–If Equipped
Many large diesel trucks are equipped with a
compression release engine brake system,
commonly referred to as a ‘jake brake’– so
named for Jacobs Vehicle Systems, the originator
of this type of braking system.
The engine brake is a device mounted on top
of the diesel engine that temporarily changes the
timing of the exhaust valves, momentarily
shutting down either three cylinders or all six
cylinders, depending on Low or High setting.
This turns the power-producing diesel engine
into a power-absorbing compressor, which
provides effective deceleration of the vehicle.
Combined with use of the chassis air brakes, the
engine brake delivers a substantial degree of
braking power.
The engine 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
engine brake system. The engine brake will
operate whenever you let up on the throttle pedal
while the switch is ON.
To Use the Engine Brake
The engine brake is activated using a 3-
position switch located on the upper left side of
the dash. When activated, the engine brake will
engage whenever you lift your foot from the
accelerator pedal. Also, the brake lights on the
back of the coach will illuminate whenever the
engine brake engages to alert drivers behind you
that your coach is slowing down. The chassis
service brakes (air brakes) are also still active
even when the engine brake is switched on.
Parking Brake Knob - typical
• Pull to apply
• Push in to release
