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.
TSIB 25-01
Service Bulletin/Repair Instructions
Thermo-King has issued a Service Bulletin (SB866-1) related to the clutch bearing maintenance on their QS616 HVAC screw compressor. New Flyer is issuing this Technical Service Information Bulletin to notify New Flyer XD60, XN60 and XDE60 bus operators about this Thermo-King Service Bulletin.
ITS60410
Service Bulletin/Repair Instructions
This technical instruction describes how to replace dust covers and seal and protect the harnesses associated with the Smart Rider suspension leveling system for 60 foot buses with components installed on all three axles.
ITS60299
Service Bulletin/Repair Instructions
This technical instruction describes the procedure to install a new mounting bracket for dry chemical fire retardant tank on the optional fire suppression system.
ITS60309
Service Bulletin/Repair Instructions
This Instruction to Service describes the procedure of removing the Comotech windshield wiper motors and replacing them with Sprague windshield wiper motors on specifically equipped buses.
ITS59280
Service Bulletin/Repair Instructions
Technical Instruction describing how to remove and install a decal indicating CNG fuel system tank expiry date.
ITS59161
Service Bulletin/Repair Instructions
Technical Instruction describing how to inspect and install new headlamp harness if required.
ITS59144
Service Bulletin/Repair Instructions
Technical Instruction describing how to relocate a drain hole in engine compartment.
ITS59110
Service Bulletin/Repair Instructions
This is a technical service instruction describing how to retrofit the Smartrider air suspension system, with upgraded Pneumatic Control Units (PCU) on a 60 foot bus.
ITS59066
Service Bulletin/Repair Instructions
Technical Instruction describing how to inspect and possibly replace an air conditioning hose assembly.
SMB191
Service Bulletin/Repair Instructions
Service Manual Bulletin - Changes to Cummins ISLG and L9N engine oil specifications and oil change intervals.
ITS58909
Service Bulletin/Repair Instructions
Technical Instruction describing how to retrofit new shock absorber dust covers, height sensor and harness assembly for optional leveling system on 60 foot buses.
ITS58911
Service Bulletin/Repair Instructions
Technical Instruction describing how to retrofit new shock absorber dust covers, height sensor and harness assembly for optional leveling systems on 2 and 3 axle vehicles. (Supersedes ITS58860)
TSIB 20-01
Service Bulletin/Repair Instructions
Technical Service Information Bulletin describing changes to the Cummins ISLG, L9N, ISB6.7G and B6.7N engine oil specifications.