4-62 CONTROLS AND INSTRUMENTS
PA1628 H3-41, H3-45 Operator’s Manual
NOTE
If the wheels start to lock up on slippery
roads, the output retarder will automatically
deactivate until the wheels start to turn.
FOOT-OPERATED CONTROLS
FOOT OPERATED CONTROLS
00023A
BRAKE PEDAL
The coach is equipped with a dual braking
system. The front brakes operate from a
different air source than the drive and tag axle
brakes.
The dual braking system becomes a modulated
emergency system if a pressure drop occurs in
the primary brake system (rear brakes).
Service brakes are applied by depressing the
brake pedal. Braking increases with the amount
of pressure applied to the foot pedal. Refer to
Section 5
Other Features
under “Antilock Braking
System”. When the brake pedal is depressed, the
brake lights turn on automatically.
For safe and effective braking, the air system
pressure should reach at least 95 psi in both the
primary and secondary circuits.
A warning light and an audible alert will sound
when the air pressure in either the primary or
secondary circuits drops below 85 psi. If this
occurs, stop the coach; determine the cause of
the pressure loss before proceeding. The brake
pedal can be used in conjunction with the
transmission retarder. Refer to “Transmission
Retarder” in this section.
WARNING
Immediately report any brake system
problem to the nearest Prevost or Prevost-
approved service center, or to your
company.
WARNING
Do not "fan" or "pump" the brake pedal.
This practice does not increase brake
system effectiveness but rather reduces
system air pressure and reserve thereby
causing reduced braking effectiveness.
CAUTION
"Riding" the brake by resting one's foot on
the brake pedal when not braking can cause
abnormally high brake temperature, can
damage and cause premature wear of brake
components and reduce brake
effectiveness.
ACCELERATOR PEDAL
Controls engine speed and power as needed.
CAUTION
Do not let the engine operate above 2,450
rpm.
STEERING WHEEL ADJUSTMENT UNLOCK AIR
VALVE
Push on the valve button with the left foot to
unlock the steering wheel for tilt and telescopic
adjustment.
WARNING
Do not adjust the steering wheel while the
vehicle is moving. Loss of control could
result. Park the vehicle safely and apply
parking brake before adjusting.
Summary of Contents for H 2018 Series
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Page 217: ...TECHNICAL INFORMATION 9 5 PA1628 H3 41 H3 45 Operator s Manual H3 45 OVERALL DIMENSIONS 18525 ...
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