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chassIs InformatIon — 10
"HI" represents an overfull condition
followed by a numeric indication of the
number of quarts the sump is overfull.
A countdown of flashing numbers
indicates the fluid is still settling. When
the fluid has stabilized in the sump, the
true level will be indicated.
If an "o" "L" "-" followed by a number
displays, the oil level sensor could not
read the level due to one of conditions
listed in the "Common Oil Level Fault
Codes" chart.
Exit by pressing "N."
Cold Check - Manual Check Procedures:
The concept of a cold check is to determine
adequate fluid level for safe operating such
as after a fluid and filter change. A cold
check should be performed after transmission
maintenance or service until a hot fluid level
check or fluid level check from the shift selector
can be performed.
To Check the Fluid When Cold:
Park the motorhome on a level surface.
Set the parking brake.
Chock the wheels to prevent the
motorhome from moving.
Start the engine.
Allow the engine to run at idle (500 to
800 RPM) for one minute.
Apply the service brakes and shift to D
(Drive), then to N (Neutral) and next to
R (Reverse) to fill the system. Shift the
transmission to N (Neutral) and release
the service brakes. Allow the engine to
idle at 500 to 800 RPM.
220
Remove the dipstick and wipe clean.
Reinsert the dipstick fully into the tube,
then remove to check fluid level. Repeat
to verify reading, if needed.
Safe operating level is anywhere within
the Cold Check band on the dipstick.
This allows safe operation of the
transmission until a Hot Check or fluid
level check from the shift selector can be
performed.
If the level is not within this band, add
or drain the fluid as necessary to put the
level to the middle of the Cold Check
band.
Perform a fluid level check from the
shift selector or a Hot Check at the first
opportunity when normal operating
temperatures are reached.
CAUTION
Low or high fluid level can cause
overheating and irregular shift patterns.
These conditions can damage the
transmission if not corrected.
Fluid Levels - Hot Check
Fluid level rises as temperature increases.
Fluid must be hot to ensure an accurate check.
Be sure fluid has reached normal operating
temperature. If a transmission temperature gauge
is not present, check the fluid level when the
engine water temperature gauge has stabilized
and the motorhome has been driven for at least
one hour.
Park the motorhome on a level surface
and shift to N (Neutral). Apply the
parking brake and allow the engine to
idle (500 to 800 RPM).
20 0 8 K n I G ht
After wiping the dipstick clean, check
the fluid level. Safe operating level is
anywhere within the Hot Run band on
the dipstick.
The width of the Hot Run band is
approximately one quart of fluid at
normal temperature range.
If the level is not within this band, add
or drain the fluid as necessary to put the
level within the Hot Run band.
Ensure that fluid level checks are
consistent. Check the level more than
once. If readings are not consistent,
ensure the transmission breather is clean
and not clogged. If readings are still not
consistent, contact the nearest Allison
Service Center.
fUel SyStem
Fuel Requirements
Diesel fuel classified as # 2 is used in moderate
and temperate climates. A winter blend of #1
and #2 diesel fuels is available during the winter
months in cooler climates (or possibly year-
round in extremely cold or arctic areas). The
dispensing pump may not indicate winter blend.
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