310T Study Guide 2026

A faulty turbine speed sensor provides incorrect shaft speed data, causing the TCM to miscalculate shift timing and produce harsh upshifts.

In a unit injector system, the injector itself generates high pressure via a rocker-arm-driven plunger, unlike common rail which uses a central pump.

Over-adjustment of the slack adjuster brings the lining too close to the drum, shortening stroke but also risking brake drag and heat buildup.

A structured walk-around ensures that exterior body, tires, lights, and undercarriage items visible during the circuit are checked in a consistent, repeatable sequence.

Air from the compressor flows first into the wet (supply) tank where moisture collects, then through check valves into the primary and secondary circuit reservoirs.

A malfunctioning front-axle limiting or proportioning valve reduces delivered pressure to the front brakes, creating a front-to-rear imbalance.