Vehicle report
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.
SIL 3067
Altec has learned that a pressure regulator bolt spacer on certain ST550/720/750 spray trucks and SK430/560 spray units built from July 2020 to February 2023 might not have been installed on the pressure regulator bolt weldment, resulting in the hoses on the tank exceeding their rated pressure on the affected units.
SIL 801
Altec has learned that the fender rubber on certain units built from July 2020 to October 2020 can become detached from the wheel well fender cutout of the utility body. Altec recommends that all fender rubber be inspected using the inspection procedure described in the SIL. If the installed fender rubber does not pass inspection, order and install the Fender Rubber Replacement Kit. If the fender rubber passes the inspection, complete the Inspection Sheet at the end of this document. No additional inspections are required.
SIL 781
The receiver hitch capacity and warning placards were not installed on the affected units. Use of the hitch at loads higher than the design ratings due to the lack of these placards can overload the receiver tube, resulting in damage to the receiver tube and/or the bumper. The Receiver Hitch Placards Kit is included with the SIL. Altec requires this kit to be installed by the next preventive maintenance interval.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.