32
• Perform a Hot Check at the first opportunity after normal operating
temperature (71°–93°C; 160°–200°F) is reached.
HOT CHECK
Because the fluid level rises as temperature increases, the fluid must be hot to ensure
an accurate check.
• Be sure fluid has reached normal operating temperature (71°–93°C;
160°–200°F). If a transmission temperature gauge is not present, check
fluid level when the engine water temperature gauge has stabilized and the
transmission has been operated under load for at least one hour.
• Park the vehicle on a level surface and shift to N (Neutral). Apply the parking
brake and allow the engine to idle (500–800 rpm).
• After wiping the dipstick clean, check the fluid level. The safe operating level
is anywhere within the HOT RUN band on the dipstick.
• If the level is not within this band, add or drain fluid as necessary to bring the
level within the HOT RUN band.
• Be sure that fluid level checks are consistent. Check level more than once and
if readings are not consistent, check to be sure that the transmission breather
is clean and not clogged. If readings are still not consistent, contact your
nearest Allison distributor or dealer.
RECOMMENDED AUTOMATIC TRANSMISSION FLUID
AND VISCOSITY GRADE
• TRANSYND
TM
is a full synthetic transmission fluid developed by Allison
Transmission and Castrol Ltd. This fluid meets Allison specifications for
Severe Duty and Extended Drain Intervals. TRANSYND
TM
is fully qualified
to the GM DEXRON
®
-III and Allison C4 specifications and is available
through Allison distributors and dealerships.
CAUTION: The transmission must not be operated for extended
periods of time until a Hot Check has verified proper fluid level.
Transmission damage can result from extended operation at improper
fluid level conditions.
CAUTION: An accurate fluid level check cannot be made unless the
engine is idling (500–800 rpm) in N (Neutral), the transmission fluid
is at the proper temperature, and the vehicle is on a level surface.
To Next Page
Loading...
Need help?
General
