Regal 53 SC Owner's Manual page 239

Filling Transmission Oil
1. The transmission dipstick can be accessed and removed
through the opening in the Zeus top cover or with the
cover removed.
2. Remove the dipstick by turning it counterclockwise.
Wipe with a clean, lint free cloth. Check the oil level as
outlined in the previous checking section.
3. Add the recommended transmission oil through the
dipstick threaded hole to reach the maximum dipstick
mark. Normally with a transmission and drop box along
with a remote transmission oil fi lter the system uses 5.5 L
or 6 US quarts.
Note: For the most accurate measurement operate the
engine at 1500 rpm's for 3 minutes before immediately
checking the oil level.
4. Start the engine and run for 3 minutes at 1500 rpm's to
fi ll all the hydraulic circuits and empty cavities.
5. Stop the engine and unscrew and remove the dipstick
quickly.
6. Check the oil level per the Checking section.
7. If the oil level is low add the appropriate transmission
oil to the maximum mark on the dipstick. See the photos
in the checking section.
8. Install the transmission dipstick.
9. If needed reinstall the Zeus top cover.
Changing Transmission Oil
To change the transmission oil refer to the Zeus Opera-
tor's manual or consult your closest Cummins Repair Fa-
cility.
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Chapter 5