PREVOST H3-45 - I-Shift Transmission Fluid Level

Care and Maintenance 8-9
PA-1628Operator's ManualH3-45 COACH
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).
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.
TRANSMISSION FLUID DIPSTICK (H3 SERIES)
l 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 fluid level. If the fluid level is within the
COLD RUN band, the fluid level is correct and a hot
check can be performed. If the fluid level is on or
below the lower line of the COLD RUN band, add
fluid until the level lies within the COLD RUN band.
If the fluid level is above the COLD RUN band, drain
fluid until the level is within the band.
TRANSMISSION FLUID LEVEL DIPSTICK (TYPICAL)
CAUTION
The fluid level rises as fluid temperature rises. Do
not add fluid above the "cold run" band before the
transmission reaches 180
o
F to 220
o
F (82
o
C to
104
o
C).
l Hot Check
Make sure the transmission fluid temperature is
between 160ºF and 200ºF (71ºC and 93ºC) 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 fluid. Remove and
clean dipstick, then check fluid level. If the fluid level
is on or under the lower HOT RUN line, add just
enough fluid to bring up the level to the middle of the
HOT RUN band.
TRANSMISSION FLUID LEVEL DIPSTICK (TYPICAL)
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.
I-SHIFT TRANSMISSION FLUID LEVEL
Check the transmission fluid level at each service
interval. Park the vehicle on a level surface. Check
the fluid level through the sight glass on the side of
the transmission. Add fluid as necessary. Only use
VOLVO-approved synthetic transmission fluid in the
I- Shift transmission. Refer to section 24 of the
Maintenance Manual for more information about oils
approved by Volvo;