freightliner FL60 1998 - Mercedes-Benz (MBT) Transmission Leak Checking (26-09)

12. Inspect the high temperature ATF level.
12.1 Make sure the vehicle is in neutral and
start the engine and remove the chocks.
Drive the vehicle for 30 minutes to raise
the ATF temperature to normal working oil
temperature.
Park the vehicle on a level service and
chock the tires.
12.2 With the engine idling, engage the brake
pedal and successively shift gear posi-
tions to spread ATF throughout the trans-
mission.
12.3 Set the shift selector to neutral (N).
12.4 Continue engine idle and remove the dip-
stick. Wipe it clean, re-insert it, remove it
and measure the ATF level.
12.5 If the ATF temperature is between 158 to
176°F (70 to 80°C), the fluid should mea-
sure in the HOT range. See Fig. 17.
• If the ATF level is below the HOT
range, add ATF until the level is
within the HOT range.
• If the ATF level is above the HOT
range, remove the drain plug
(Fig. 16) and drain ATF until the
level is lower than the required
range. Then, install the drain plug
and refill with ATF until the level is
within the HOT range.
13. Remove the chocks from the tires.
26-09 Mercedes-Benz (MBT)
Transmission Leak
Checking
1. Park the vehicle on a level surface. Apply the
parking brakes and chock the rear tires.
2. Check for signs of leakage at the breather. See
Fig. 18.
2.1 If leakage is found, check the breather for
a missing cap. Replace the cap if neces-
sary.
2.2 Check the fluid level at the fill plug. If the
level is too high, correct the fluid level.
3. Check for signs of leakage at the cap seal on the
shift lever. If the cap seal is damaged, replace it.
12/06/1999
A
B
f011723
1
A. Hot Range
B. Cold Range
1. Dipstick
Fig. 17, ATF Dipstick, Aisin Transmission
05/22/2001
f261101
1
2
3
4
5
6
7
8
9
NOTE: The transmission is shown from the left-hand
side.
1. Shift Lever Cap Seal
2. Breather
3. Output Shaft Radial Seal
4. Countershaft Rear Cover Plate
5. Transmission Fluid Fill Plug
6. Transmission Fluid Drain Plug
7. Gear Case Seals
8. Clutch Slave Cylinder
9. Input Shaft Radial Seal
Fig. 18, MBT Transmission Leak Check
Transmission26
Business Class Trucks Maintenance Manual, February 200326/18