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Service bulletin SB777-3

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11022458
Published by NHTSA2025-09-03
Manufacturer's numberSB777-3
Manufacturer's date2025-08-14
NHTSA componentENGINE

NHTSA's summary

Thermo King has introduced a new belt-tensioning tool. The Continentalâ„¢ TensionRite Belt Frequency Meter. This tool measures the belt frequency with high accuracy and easy operation. This bulletin serves as guide for the specification and best practices of tensioning belts for all units.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
THERMO KING PRECEDENT C-600
THERMO KING PRECEDENT C-600M
THERMO KING PRECEDENT S-600
THERMO KING PRECEDENT S-600M
THERMO KING PRECEDENT S-610DE
THERMO KING PRECEDENT S-610M
THERMO KING PRECEDENT S-700
THERMO KING PRECEDENT S-750I
THERMO KING SLXI DRC
THERMO KING SLXI LOCAL
THERMO KING T-1090
THERMO KING T-1090 MAX
THERMO KING T-1090 SPECTRUM
THERMO KING T-590
THERMO KING T-690
THERMO KING T-690 MAX
THERMO KING T-890
THERMO KING T-890 MAX
THERMO KING TRIPAC EVOLUTION
THERMO KING TRIPAC-3

Listing a model year does not mean every vehicle of it is concerned: the document says which.