VEHICLE OPERATION
Copyright © 1998 New Flyer Industries Ltd. 71
Retarder Operation
WARNING:
During inclement weather or slippery road condi-
tions, set the Retarder switch to the OFF position.
The retarder is used to slow the vehicle and works in conjunction
with the service (air) brakes. The retarder, located inside the
transmission, is a fluid brake that creates drive-line deceleration.
When activated, its housing fills with transmission fluid which
impedes output shaft and rotor rotation slowing the vehicle.
The retarder operates at speeds above 10 mph and engages with
brake treadle application. Lightly pressing on the brake treadle
(the first 5° - 10° of movement) engages the retarder. Pressing
further applies both the retarder and the service brakes. Releas-
ing the brake treadle or decreasing speed to below 10mph will
disengage the retarder.
Situations such as slowing the vehicle from high speeds or travel-
ing down long grades are examples of where the retarder is rec-
ommended. Its use will save mechanical wear on the service
brakes and improve vehicle control. In poor operating conditions
such as slippery roads or inclement weather retarder use is not
recommended and should be manually disabled at the Retarder
switch.
☞ NOTE:
The Retarder switch is behind the driver’s locker access door.
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