(A) Definitions:
(1) "Service brake" means the primary brake
for retarding, stopping and controlling a vehicle.
(2) "Emergency brake" means a brake system
independent in application from the service brake used for stopping or holding
a vehicle in an emergency or while parked.
(3) "Pedal reserve" means the amount of total
pedal travel left in reserve when the pedal is depressed to the "brake applied"
position.
(B) Brakes
will be inspected to determine if:
(1) There
is sufficient brake pedal. Hydraulic brake system shall be tested with vehicle
in a stopped position. Driver should be able to maintain brake pedal height
under moderate foot force (forty to sixty pounds) for one minute.
(2) There is sufficient brake pedal reserve.
With a vehicle in stopped position and the brake pedal depressed under moderate
foot force (forty to sixty pounds for nonpowered systems and fifteen to twenty
pounds in power assisted systems) there shall be a minimum of approximately
one-third of the total available pedal travel (manufacturers specification)
remaining on nonpower assisted systems. On power assisted systems, checking
with motor running, there shall be one-fifth or more of the total available
pedal travel remaining when pedal is depressed under moderate foot force.
(3) The service brake shall stop
the vehicle in the distance required by law. Visual inspection shall be made
for leakage of brake cylinders on all wheels. The test may be made using a
mechanical testing device approved by the Superintendent of the Ohio State
Highway Patrol, or on a level, dry, smooth, hard surface, free of loose
material, oil or grease, using the service brake only to stop the vehicle.
Vehicles having brakes on all wheels shall come to a stop in
thirty feet or less from a speed of twenty miles per hour. Vehicles not having
brakes on all wheels shall come to a stop in forty feet or less from a speed of
twenty miles per hour.
(4)
The emergency brake shall hold the vehicle on any grade on which it is
operated, under all conditions of loading, on a surface free from snow, ice or
loose material and shall be adequate to stop the vehicle in event the service
brake should fail.
The emergency brake shall hold the vehicle in stopped position
when less than two-thirds of the actuator stroke is used. A test shall be made
by setting the emergency brake and then attempting to move the vehicle in
forward gear at an idle.
