Page 119 – Mechanics Hub

The Blue Bird Micro Bird School Bus

The Micro Bird School Bus I would like to tell you about the 10 to 30 passenger Micro Bird school bus that is manufactured by Bluebird Bus Micro Bird by Girardin. It’s a bus model that you may not see much of and since we have one in our fleet I can share my experience… Continue reading The Blue Bird Micro Bird School Bus

Hypnotized Truck

The PacBrake Used On A School Bus

Exhaust Brake For Cummins ISC Since our bus fleet uses medium duty diesel engines around the 250 hp range engine exhaust brakes are not available. Exhaust brakes are the only retarder device we can use on the buses. They work more efficiently at higher rpm…..1,800 to 2,000 rpm is best. The throttle position has to… Continue reading The PacBrake Used On A School Bus

Small Equipment

Two Ways To Regen A Diesel Engine

Two Exhaust Regens Are Better than One Getting all that nasty soot and exhaust contamination out of the exhaust system DPF (diesel particulate filter) takes time and heat to do a proper job. The first step to take is to do a ‘parked regen’ where the diagnostic software comes in handy to force it to… Continue reading Two Ways To Regen A Diesel Engine

Payment Program

C2 School Bus J1939 Wiring

Troubleshooting J1939 Multiplexing The J1939 is a twisted pair of wires in the multiplexing system between modules that communicates using inputs and outputs. Multiplexing can be compared to broadband cable supplying internet access, cable TV and telephone. It sends multiple electronic messages using the same signal path simultaneously with other signals. The J1939 also known… Continue reading C2 School Bus J1939 Wiring

Stolen Identity

Cummins ISL G Natural Gas Engine

The video below is one of the mechanics from the Kelowna school district giving us a tour of their natural gas infrastructure. They have 16 buses running on natural gas and so far they are happy with them. About Cummins Natural Gas Engines When we stopped in to the Kelowna school bus garage one… Continue reading Cummins ISL G Natural Gas Engine