by Jake Schell
Today’s trucks are significantly more complex than the old truck that my classmate and I (eventually) changed the oil in.
Some 40 years ago, a much younger and less experienced version of me–along with another young classmate–was given an assignment in our community college diesel class to change the oil in a long out-of-service 1967 Mack cabover. Excited to finally get to work on a truck, we gathered the tools known in our automotive experience to change oil, in let’s say, a Chevy Chevelle.
Placing our trusty five-quart drain pan under the seemingly massive drain plug on the old Maxidyne engine, we noted that the wrench was too small for the drain plug. So, we hustled back into the shop and grabbed a fairly large adjustable wrench that was sure to handle the job.
The wrench, as expected, did the job and cracked loose the large plug. However, hot oil from the still-warm engine began to run out around the plug, making it difficult to keep loosening. Nevertheless, we persevered and the plug came loose from the engine. The events that followed resembled the oil strike at the Spindletop oil field in reverse as gallons – not quarts – of oil burst forth from the pan. Lesson learned; a little preparation goes a long way.
After some time in the shop, a tech becomes familiar with the tools and equipment needed for most jobs. This is especially true with similar tasks repeated multiple times each day. On the other hand, tasks you have not previously performed will benefit from some advanced planning. Reviewing the service information can be helpful in identifying particulars about a service procedure. For example:
These are only a few of the items a technician may find helpful before taking on a new service task. Of course, reviewing the above items could be beneficial to even the technician who has performed the procedure numerous times.
Most will recognize the old adage, “There are no stupid questions.” Today’s trucks are significantly more complex than the old Mack that my classmate and I (eventually) changed the oil in.
EDITOR’S NOTE: Check out Jake Schell’s complete line-up of monthly columns in Fleet Equipment Magazine at https://www.fleetequipmentmag.com/author/jake-schell/.
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About the Author
Jake Schell
Jake Schell is the Associate Product Manager for Mitchell 1’s commercial vehicle product line. He has been with Mitchell 1 since 2001. Prior to coming to Mitchell 1, Jake spent 20 years as a technician, with Chevrolet Master certification in the transmission category as well as ASE certifications in both car and truck.
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