Title: Check the transmission case, seals, filter, hoses, lines, fluid levels, and cooler for cracks and leaks.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Drive Train

Checking should include the

- transmission line for abrasions or improper routing
- transmission tail shaft seal for leaks
- transmission front seal for leaks
- torque converter for leaks
- transmission case for leaks
- transfer case for leaking transmission fluid
- transmission cooler line fitting for leaks
- transmission cooler leaking into the radiator
- transmission mounting bolts
- operation of air valves, if applicable.

ASE 2, 3, 4, 5: II. Drive Train: C. Transmission (P-1, P-2)

Process/Skill Questions:

- How significant does a leak or weep need to be before the vehicle is removed from service?
- What effect would a leaking front transmission seal have on a clutch assembly?
- How could poor operation of the high-low range indicate an air problem?