Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSC26001
Service Campaign
Subject: The power steering cooler may begin to leak on the low-pressure side of the system. This fault will need to be inspected and corrected if any seepage is present Problem: Power steering cooler fittings have an inconsistent machined edge; this edge prevents the O-ring from sealing resulting in a slow seepage. Applies To: Certain 2019-2026 Rosenbauer trucks have been flagged as possible candidates. Rosenbauer will be supplying a list to service partners and notifying customers. Assistance Needed: Dealers to follow the Technical Service Campaign instructions and inspect the listed candidates for faulty power steering coolers. If known leaks are present, submit a CRM ticket with an image of the leaking cooler fittings. Resolution: If this problem is found, a replacement Setrab cooler with higher quality standards and machining will be supplied at no cost to customers. This correction does not change the connected hoses and does not require a full power steering drain.
WI26001
Service Bulletin/Repair Instructions
Work instructions for door latch adjustments. Includes installation and removal of shims to ensure secure closure and compression of gaskets and seals. Adjustment for depth, verticality, and side to side movement of the assembly.
3050819
Service Bulletin/Repair Instructions
Updated TSB to account for change in labor hours & travel cost to complete Innovative Controls digital gauge cluster software update. This update is being completed to improve firmware which allows for better communication with onboard systems.
TSB25002
Service Bulletin/Repair Instructions
Digital software will need to be updated to ensure proper connectivity to onboard systems. Trucks are not considered out of service due to this issue and may remain in operation until software update is completed.
TSB25001
Service Bulletin/Repair Instructions
If a DEF sensor fails, validate that the Coolant Control Valve is plumbed so that the coolant flows towards the DEF Tank. If it is plumbed incorrectly, replace the coolant control valve along with DEF assy. Follow the attached instructions for inspection.
SIL24001
Service Bulletin/Repair Instructions
Rosenbauer Dealers should perform the attached maintenance during pre-delivery inspections for any Rosenbauer Commander and Warrior that has the Henrickson Steertek system.
WI23006
Service Bulletin/Repair Instructions
When installing the 3rd wiper for the windshield, Dealers should follow the instructions attached in this email.