Freightliner maintenance manual STI-494-7 for the 122SD severe-duty truck and the Coronado 132. It covers service schedules, IM and M1 to M3 intervals, and lube and inspection steps for chassis, drivetrain, brakes, cab and hood.
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STI-494-7 (September 2013) is written for the Freightliner 122SD and Coronado 132. The 122SD is Freightliner's severe-duty vocational truck, used for dump, mixer, logging, oilfield, crane and heavy-haul work.
Pick your duty type first: Schedule I (severe service), II (short haul) III (long haul) or IV. The tables then tell you what to check at each interval, and each job has a reference number that points to the step-by-step instructions.
Severe-duty trucks often fall under Schedule I, so check that table first. 129 pages.
| Publication | STI-494-7 (Sep 2013) |
|---|---|
| Models | 122SD, Coronado 132 |
| Use | Vocational / severe duty |
| Schedules | I, II, III, IV |
| Intervals | IM, M1–M3 |
| Pages | 129 |
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