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.
TERE-070821-004
Service Bulletin/Repair Instructions
SA696 Contamination in Auxiliary Power Check valve: Informs service personnel that the check valve will not function if contaminated. The only time the check valve is needed is when auxiliary power option are used. If not checked as part of the daily pre-shift inspection the Auxiliary Power may not function when needed.
tere04072020PN67
Service Bulletin/Repair Instructions
Advisory to move the lanyard location on end mount aerials to a position the lanyard snap hook can not hang into the platform.
PA653
Service Bulletin/Repair Instructions
Inform users of changes to OSHA fall protection requirements for platform occupants of Aerial Devices and Digger Derricks. Due to rewrite of OSHA 1926 Subpart V.
SN640
Service Bulletin/Repair Instructions
LETTER AND BULLETIN SENT TO OWNERS OF OFF ROAD TRACK VEHICLES WHICH MAY SEE CRACKS IN MOUNTING DUE TO FLEXIBILITY IN THE TRACK VEHICLE FRAME. THIS MOUNTING IS UNIQUE TO OFF ROAD TRACK VEHICLES.