Braking And Steering Controls; Parking Brake Control - freightliner WALK-IN VAN CHASSIS Operator's Manual

Controls
Manual Dump Valve (optional)
On vehicles equipped with a manual dump valve,
there are two ways to deflate the rear suspension.
With the key in the OFF position, toggle the dump
valve into the "lower" position. If the key is in the ON
position, the parking brake must be set (ON) before
the dump valve is toggled into the "lower" position.
NOTE: If the key is turned to the ON position
and the parking brake is not engaged, the over-
ride will cause reinflation of the air ride system.
Backup Alarm (optional)
An optional backup alarm, sounds when Reverse ®)
gear is engaged. Check the operation of the backup
alarm daily, if so equipped.

Braking and Steering Controls

Parking Brake Control

Hand-Operated Parking Brake
On all vehicles, a parking brake control lever is lo-
cated to the left of the steering column. To apply the
parking brake, depress the brake pedal, then pull up
on the parking brake lever. To release the parking
brake, depress the brake pedal and push the parking
brake lever all the way down.
IMPORTANT: Take care to hold on to the park-
ing brake lever while releasing it. Do NOT allow
the lever to slam down while releasing it.
NOTICE
Overtightening of the knob can lead to cable
breakage and/or damage to the knob and lever.
If the parking brake does not hold the vehicle se-
curely, depress the brake pedal and release the
parking brake. Turn the knob on the end of the lever
clockwise to increase the parking brake application.
If the parking brake still doesn't hold the vehicle se-
curely (after adjustment), check the brake lining
thickness. For instructions, see Group 42 of the
Walk-In Van Chassis Maintenance Manual.
Hydraulic Parking Brake (optional)
To apply the hydraulic parking brake, pull the yellow
knob labeled PARKING BRAKE on the dash panel.
3.5
In order to release the hydraulic parking brake, the
engine must be running (hydraulic pressure is
needed to release the brake) and the gear selector
must be in the Neutral (N) position. To release the
parking brake, push the knob in.
CAUTION
On vehicles with hydraulic parking brakes, loss
of all hydraulic pressure will cause the parking
brake to automatically engage.
NOTE: If the gear selector is not in the Neutral
(N) position and the parking brake is on, a
buzzer will sound to let the driver know to place
the gear selector in the Neutral (N) position.
If the ignition key is in the OFF position and the
parking brake is not applied, a buzzer will sound
to let you know that you should apply the park-
ing brake.
With the engine shut down, the hydraulic pump
will actuate with your foot on the brake pedal;
this could cause the battery to run down. If the
engine is inoperable, see the "Emergency Re-
lease of Parking Brake" procedure that follows.
Emergency Release of Parking Brake
(automatic transmission)
If your engine will not start and you want to release
the parking brake, do the following. Block the wheels
and turn the ignition switch to the ON position.
NOTICE
Do not crank the engine for more than 30 sec-
onds at a time during any of the following proce-
dures. Wait two minutes after each try to allow
the starter to cool. Failure to do so could cause
starter damage.
Use the ignition switch to turn the engine over sev-
eral times with the gear shift selector in the Neutral
(N) position and the parking brake knob in the re-
leased (pushed) position.
NOTE: The emergency release will not work in
all cases. The system requires hydraulic fluid to
provide pressure for the procedure to work.
Since the system is pressurized when the brake
is released, the parking brake will come back on