In 2009 we acquired a 2009 hybrid school bus driven by a six liter MaxxForce Diesel Engine. It’s still running around today and I want to go through how it operates and describe some of the components that make this system work. The whole idea behind a hybrid is to assist the launch of the… Continue reading 2009 Hybrid School Bus Over View
Setting The Programmer for the Espar Multi Max F1000 diesel coolant heater controller is basic and just takes some practice getting used to the steps. It comes with an SD card that has the manuals and programmer installed. The first step is to download the SD card information to your computer. Then you can go… Continue reading Espar Multi Max F1000 Diesel Coolant Heater Controller
This is part 2 of a previous video I posted here that showed me wiggling the harness to make the engine quit. It didn’t work but the engine did cut out a couple of times. This video shows you the actual wire that is at fault. It’s a grey14 gauge wire that runs power to… Continue reading Mercedes Diesel Engine Wiring Problem Part 2
Cummins Insite Lite Software and Quickserve Online Training I recently went down to Vancouver for Cummins training… it was a 2 day course and well worth the trip. Cummins software is a valuable tool when you own their engines or work on them in the retail world. Without Insite Lite and Quickserve online you are… Continue reading Cummins Insite and Quickserve Training
The diesel engine in the video is a 2007 Mercedes MBE 900 and it was shutting down on the road unexpectedly. The operator would be driving under several different conditions when it happened. We found the harness where the fault wire was located. Of course the engine did not die for us but you can… Continue reading Mercedes Diesel Engine Wiring Problem
Adjusting the Bendix D2 governor just takes a 7/16 wrench and a screwdriver. The unloading pressure for the typical air brake system is 120 psi but it can be higher up to 130 psi without a problem. Anywhere in the middle is good in my book. This is an easy adjustment as you can see… Continue reading Adjusting a Bendix Air Governor
Machining Brake Shoes Machining shoes and drums on our fleet of buses was a standard procedure in our shop for many years. The brake job has now evolved into a remove and replace operation changing both drums, shoes and hardware. The reason for this is the time factor ….. the entire machining process on the… Continue reading School Bus Brake Job Machining Tools
Thomas School Bus Wiring Troubleshooting The pusher bus featured in the video is a 2000 Thomas Pusher (rear engine) bus that would not start from the ignition key. The wiring diagram indicated that the purple with a white stripe numbered #4 runs from the ignition key start terminal directly to a terminal board connection at… Continue reading School Bus Wiring Problem No Start
Commercial Transport Mechanic Notes This post is for you young guys just getting started in the commercial transport trade who have not had a lot of hands on training. I’ve had a lot of training and experience in this field and mixed into that is a lot of failures as well. You will have to… Continue reading Commercial Transport Mechanic Insider Advice
Preventive Maintenance Practices The video explains the importance of seeing dirty oil in the wheel hub reservoir and the steps that need to be taken. This is all part of preventive maintenance when something suspicious is spotted and the only option is to investigate. The gear oil is a lot clearer when it’s right out… Continue reading Preventive Maintenance – Wheel Bearings
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