ASE H5 Suspension & Steering (Transit Bus) case studies
ASE H5 Suspension & Steering (Transit Bus) · Put your knowledge to work in context.
The ASE H5 Suspension and Steering credential is a professional certification test for technicians who service transit buses. It sits within the ASE transit bus certification series and is intended for working technicians, fleet shop staff, and apprentices preparing to demonstrate competence on heavy-duty bus chassis systems. The ASE H5 Suspension & Steering (Transit Bus) case studies are 5 cases and about 1,909 words.
1Straight-Ahead Wander After Steering Gear Replacement
A 40-foot low-floor transit bus with a hydraulic integral power steering gear was brought in after the gear was replaced at another shop. The driver reports the bus wanders at highway speed and the steering wheel is off-center about 25 degrees to the right when tracking straight.
464 words, about 2 min2Rear Air Suspension Sag on One Corner
A transit bus with a four-bag rear air suspension comes in sitting low on the left rear. The driver says the bus lists to the left when loaded and the height control valve (HCV) seems to run continuously.
361 words, about 2 min3Front Tire Cupping and Pull After Alignment
A bus returns two weeks after a four-wheel alignment with a complaint of a pull to the right and a shimmy at 55 mph. The alignment printout from the previous visit shows front toe within spec, camber within spec, and caster within spec, but cross-caster was 0.8 degrees (right more positive).
342 words, about 2 min4Steering Column Binding After Tilt Repair
A bus comes in with a complaint that the steering wheel binds and clicks when the tilt column is adjusted, and the horn sometimes sounds on its own. A prior repair replaced the tilt mechanism and the turn signal switch.
381 words, about 2 min5Rear Axle Alignment After Suspension Work
A bus with a rear air suspension and a tag axle was repaired after a collision: the left rear trailing arm and the tag axle pivot were replaced. After repair the driver reports the bus dog-tracks and the rear tires are wearing on the inner edges.
361 words, about 2 min