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3-13
SECTION 3 –
DRIVING YOUR MOTOR HOME
CB RADIO POWER WIRING
Your coach is pre-wired for CB radio power
connection. The wires are located beneath the
dash to the left of the steering wheel.
Look for a pair of wires - yellow (+) and white
(-) with connectors and flag labels suspended
from the wiring harness.
PARKING BRAKE
Freightliner
®
Chassis
Use the parking brake knob to apply the park
brake whenever the vehicle is parked.
Never try to drive the vehicle with the parking
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
Freightliner
®
Chassis
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 driver side trim panel. 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.
CB Power Wires
(in plastic sheath)
Typical View - your coach may differ
Parking Brake Knob
-Typical View
• Pull to apply
• Push in to release