PREVOST X3-45 - Exterior Lighting and Brake System Tests

Care and Maintenance
99
The transmission fluid level dipstick is
accessible through the engine compartment rear
door and is located on the left side of the engine.
To check the transmission fluid level, a "cold
check" and a "hot check" must be performed. A
cold check must be made when the
transmission fluid is between 60
o
F and 120
o
F
(16
o
C and 50
o
C).
ENGINE L. H. SIDE 07113
NOTE
Perform the cold check first to verify the
transmission fluid level before performing the
hot check.
To prevent dirt and foreign matter from entering
the transmission, clean the end of the oil fill tube
before removing dipstick. To remove dipstick,
unscrew filler cap approximately three turns and
pull out dipstick.
Cold Check
Run the engine until the transmission fluid
temperature is between 60
o
F and 120
o
F (16
o
C
and 50
o
C). With the engine idling, make sure
the parking brake is applied and the
transmission is in neutral (N). Remove and wipe
the dipstick with a clean cloth. Check oil level.
If the oil level is within the COLD RUN band, the
oil level is correct and a hot check can be
performed. If the oil level is on or below the
lower line of the COLD RUN band, add oil until
the level lies within the COLD RUN band. If the
oil level is above the COLD RUN band, drain oil
until the level is within the band.
TRANSMISSION FLUID LEVEL DIPSTICK (TYPICAL) 07050
CAUTION
The oil level rises as oil temperature rises. Do
not add oil above the "cold run" band before
the transmission reaches 180
o
F to 220
o
F
(82
o
C to 104
o
C).
Hot Check
Make sure the transmission fluid temperature is
between 180
o
F and 220
o
F (82
o
C and 104
o
C)
before performing the hot check. Run the engine
between 1,000 and 1,200 RPM for
approximately one minute to purge air from the
system. With the engine idling and the parking
brake applied, shift transmission from forward
(D) to reverse (R) and back into neutral (N) to fill
clutch cavities with oil. Remove and clean
dipstick, then check oil level. If the oil level is on
or under the lower HOT RUN line, add just
enough oil to bring up the level to the middle of
the HOT RUN band.
TRANSMISSION FLUID LEVEL DIPSTICK (TYPICAL) 07049
Replace dipstick and tighten the filler tube cap
until the rubber seal is correctly seated.
CAUTION
Do not overfill transmission fluid reservoir.
Severe damage may result.
ZF-ASTRONIC TRANSMISSION OIL LEVEL
• Vehicle should be on horizontal ground
when oil is changed;
• Do not check oil level straight after a journey
(incorrect measurement). Undertake the
check once the transmission oil has cooled
down (lower than 104
o
F or 40
o
C);
• Remove oil fill plug;