PREVOST H3-41 Manual page 43

Depress the rocker switch to activate the
transmission hydraulic output retarder and move
the output retarder lever clockwise from the first
to the sixth position.
position is as follows:
Position
Initial
1st
2nd
3rd
4th
5th
6th
The output retarder lever is located on
NOTE:
the right side of the steering column.
- When the accelerator pedal is released and
the brake pedal is applied; proceed as
follows:
Depress the rocker switch to activate the
hydraulic output retarder. Leave the output
retarder lever in the initial position. The harder
the break pedal is applied, the more the output
retarder is applied.
Refer to "Other Features" section.
NOTE: For coaches equipped with the Antilock
Braking System (ABS), if the wheels start to
lock-up on slippery roads, the output retarder
automatically will become deactivated until the
wheels roll freely.
6 - Stop Engine "OVERRIDE" or DDEC
Diagnostic Request Switch
STOP ENGINE "OVERRIDE"
Momentarily depress the rocker switch to
override the engine emergency shut-down during
a 30 second period.
repeated, provided that it is done before the end
of the current 30 second period. Refer to "Stop
Engine Indicator" on the central dashboard.
The efficiency for each
Efficiency
0%
16%
33%
49%
71%
89%
100%
This procedure can be
CAUTION: THE
"OVERRIDE" MUST BE USED ONLY IN
EMERGENCY
MOVING THE COACH OUT OF TRAFFIC.
EXCESSIVE USE COULD CAUSE SEVERE
ENGINE DAMAGE.
DDEC DIAGNOSTIC REQUEST SWITCH
With the engine idling, or with the engine shut-
off, and with the ignition ON, momentarily
depress the rocker switch. Active codes will be
flashed on the stop engine indicator, followed by
the flashing of inactive codes on the check
engine indicator. Refer to "Central Dashboard"
in this section. Codes will continue to flash until
the stop engine
momentarily depressed.
Features" section.
7 - Left blank for Additional Switch
3-16
CONTROLS & INSTRUMENTS
STOP
SITUATIONS, SUCH
OVERRIDE switch
Refer to "Other
ENGINE
AS
is