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May 18, 2023 Service bulletin

Altec Industries, Inc. has received notification from Peterbilt Motors Company that a condition exists...

Altec technical service bulletin CSR 3074 for 2022 Altec Aerial Device.

Bulletin number
CSR 3074
Component
Service brakes, hydraulic
Summary
Altec Industries, Inc. has received notification from Peterbilt Motors Company that a condition exists relating to motor vehicle safety, compliance, or emissions in a vehicle you possess that is equipped with Altec equipment. Peterbilt has decided that a defect which relates to motor vehicle safety exists in certain 2020 through 2023 Model Year 536, 537, and 548 chassis built from 6/16/2020 through 1/25/2023 and equipped with Bendix air brakes. The brake pedal plunger which connects the brake pedal to the brake valve may dislodge after the pedal is fully depressed, and rapidly released (side slip foot brake release). If the plunger in the brake pedal assembly dislodges, the driver may be unable to apply the service brakes, which may increase the risk of a crash. The risk of the brake plunger dislodging may be reduced by slowly releasing the service brakes and not allowing the pedal to release rapidly.

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