11-22 Pretrip inspection and maintenance
3 Automatic transmission fluid
Recommended fluid:
Automatic transmission fluid
(Exxon Mobil: Mobil ATF3309 or equivalent)
Have automatic transmission fluid (ATF) changed
by an authorized Sterling service facility.
Check the fluid level when the fluid is at operating
temperature. Use the “HOT” range on the ATF dip-
stick .
NOTE:
The “COLD” range is for reference purposes when
the oil temperature is low. Accurate measurement is
not possible at low temperatures.
1. Park the vehicle on a level surface. Set the park-
ing brake and chock all the tires, fore and aft.
2. Start the engine. With the engine at idle and the
brake pedal depressed, select each gear range
in turn. When finished, leave the shift selector in
“P” (park).
Remove the ATF dipstick and wipe it clean with a
shop towel.
NOTE:
The ATF dipstick is located behind the cab. If it is
difficult to remove, tilt the cab.
3. Fully insert the dipstick into the gear case, and
slowly draw it out.
4. The fluid level that appears on the dipstick
should be between the two notches in the “HOT”
range.
5. If the fluid level is too low, add fluid through the
dipstick guide tube .
NOTE:
• Always check fluid level with the engine at idle.
• The fluid level rises as the fluid heats up.
Inspection interval
Every 6000 miles
(10 000 km)
Replacement interval
Every 24,000 miles
(40 000 km)
WARNING
Use extreme care when tilting the cab with
the engine running. If the engine is running,
the vehicle could move, causing an accident
that could result in personal injury or prop-
erty damage
.
After lowering the cab, check that it is locked
securely in position. P. 11 - 5
Z12049a
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