PREVOST H3-41 Manual page 56

Upshifting
Always start moving the coach forward with the
transmission in first gear, then shift to second,
third, fourth, fifth, sixth and seventh gears (if
applicable). Do not skip gears. Do not shift to the
next higher gear until the engine speed has
reached 1,900 rpm.
recommended for shifting gears.
Downshifting
Double-clutching is
downshifting. Always change to a lower gear to
avoid engine lugging.
driving uphill or downhill, and when driving on ice,
snow or mud (minimum 1,400 rpm).
Use lower gears when driving downhill to make
full use of engine compression.
engine operate above 2,450 rpm.
Under normal driving conditions, it is not always
necessary to downshift
Downshift from seventh to first gear after bringing
the coach to a complete stop.
CAUTION: NEVER
OPERATE ABOVE 2,450 RPM.
CAUTION: ALWAYS LEAVE THE SHIFT
SELECTOR IN NEUTRAL WHEN THE COACH
IS PARKED.
CAUTION: TO PREVENT
CLUTCH WEAR, ALWAYS START DRIVING
THE COACH WITH THE TRANSMISSION IN
FIRST GEAR.
CAUTION: BEFORE
DESCENDING A LONG OR STEEP GRADE,
REDUCE SPEED AND SHIFT INTO A LOWER
GEAR. USE LOWER GEARS TO CONTROL
SPEED AND AVOID
FREQUENT BRAKING WHICH WILL RESULT IN
BRAKE OVERHEATING
BRAKING EFFECTIVENESS.
BRAKE WEAR, USE THE JACOBS ENGINE
BRAKE WHEN DESCENDING
GRADE.
Double clutching is
also recommended
Use lower gears when
Never let the
through all gears.
LET THE ENGINE
PREMATURE
ASCENDING
PROLONGED
AND REDUCE
TO REDUCE
A STEEP
WARNING:
ON SLIPPERY SURFACES SHOULD BE DONE
WITH CAUTION.
COMPRESSION BRAKING COULD CAUSE
DRIVE WHEELS TO LOCK-UP, AND MAY
RESULT
for
OR
OR
3-29
CONTROLS & INSTRUMENTS
SHIFTING INTO LOWER GEARS
SUDDEN ENGINE